id	sid	tid	token	lemma	pos
ap-2241	1	1	acta	acta	PROPN
ap-2241	1	2	polytechnica	polytechnica	PROPN
ap-2241	1	3	doi:10.14311	doi:10.14311	PROPN
ap-2241	1	4	/	/	SYM
ap-2241	1	5	ap.2015.55.0007	ap.2015.55.0007	PROPN
ap-2241	1	6	acta	acta	PROPN
ap-2241	1	7	polytechnica	polytechnica	PROPN
ap-2241	1	8	55(1):7–13	55(1):7–13	NUM
ap-2241	1	9	,	,	PUNCT
ap-2241	1	10	2015	2015	NUM
ap-2241	1	11	©	©	PROPN
ap-2241	1	12	czech	czech	PROPN
ap-2241	1	13	technical	technical	PROPN
ap-2241	1	14	university	university	PROPN
ap-2241	1	15	in	in	ADP
ap-2241	1	16	prague	prague	PROPN
ap-2241	1	17	,	,	PUNCT
ap-2241	1	18	2015	2015	NUM
ap-2241	1	19	available	available	ADJ
ap-2241	1	20	online	online	ADV
ap-2241	1	21	at	at	ADP
ap-2241	1	22	http://ojs.cvut.cz/ojs/index.php/ap	http://ojs.cvut.cz/ojs/index.php/ap	PROPN
ap-2241	1	23	monte	monte	NOUN
ap-2241	1	24	-	-	PUNCT
ap-2241	1	25	carlo	carlo	PROPN
ap-2241	1	26	re	re	NOUN
ap-2241	1	27	-	-	NOUN
ap-2241	1	28	deposition	deposition	NOUN
ap-2241	1	29	model	model	NOUN
ap-2241	1	30	during	during	ADP
ap-2241	1	31	terrestrial	terrestrial	ADJ
ap-2241	1	32	measurements	measurement	NOUN
ap-2241	1	33	of	of	ADP
ap-2241	1	34	ion	ion	NOUN
ap-2241	1	35	thrusters	thruster	NOUN
ap-2241	1	36	julia	julia	PROPN
ap-2241	1	37	durasa,∗	durasa,∗	PROPN
ap-2241	1	38	,	,	PUNCT
ap-2241	1	39	oleksander	oleksander	NOUN
ap-2241	1	40	kalenteva	kalenteva	PROPN
ap-2241	1	41	,	,	PUNCT
ap-2241	1	42	ralf	ralf	PROPN
ap-2241	1	43	schneidera	schneidera	PROPN
ap-2241	1	44	,	,	PUNCT
ap-2241	1	45	b	b	PROPN
ap-2241	1	46	,	,	PUNCT
ap-2241	1	47	konstantin	konstantin	PROPN
ap-2241	1	48	matyashb	matyashb	PROPN
ap-2241	1	49	,	,	PUNCT
ap-2241	1	50	karl	karl	PROPN
ap-2241	1	51	felix	felix	PROPN
ap-2241	1	52	lüskowa	lüskowa	PROPN
ap-2241	1	53	,	,	PUNCT
ap-2241	1	54	jürgen	jürgen	PROPN
ap-2241	1	55	geisera	geisera	PROPN
ap-2241	1	56	a	a	DET
ap-2241	1	57	institute	institute	PROPN
ap-2241	1	58	of	of	ADP
ap-2241	1	59	physics	physics	PROPN
ap-2241	1	60	,	,	PUNCT
ap-2241	1	61	ernst	ernst	PROPN
ap-2241	1	62	-	-	PUNCT
ap-2241	1	63	moritz	moritz	PROPN
ap-2241	1	64	-	-	PUNCT
ap-2241	1	65	arndt	arndt	PROPN
ap-2241	1	66	university	university	PROPN
ap-2241	1	67	greifswald	greifswald	NOUN
ap-2241	1	68	,	,	PUNCT
ap-2241	1	69	felix	felix	ADJ
ap-2241	1	70	-	-	PUNCT
ap-2241	1	71	hausdorff	hausdorff	NOUN
ap-2241	1	72	-	-	PUNCT
ap-2241	1	73	str.6	str.6	NOUN
ap-2241	1	74	,	,	PUNCT
ap-2241	1	75	d-17498	d-17498	PROPN
ap-2241	1	76	greifswald	greifswald	NOUN
ap-2241	1	77	,	,	PUNCT
ap-2241	1	78	germany	germany	PROPN
ap-2241	1	79	b	b	PROPN
ap-2241	1	80	computing	computing	NOUN
ap-2241	1	81	center	center	NOUN
ap-2241	1	82	,	,	PUNCT
ap-2241	1	83	ernst	ernst	PROPN
ap-2241	1	84	-	-	PUNCT
ap-2241	1	85	moritz	moritz	PROPN
ap-2241	1	86	-	-	PUNCT
ap-2241	1	87	arndt	arndt	PROPN
ap-2241	1	88	university	university	PROPN
ap-2241	1	89	greifswald	greifswald	NOUN
ap-2241	1	90	,	,	PUNCT
ap-2241	1	91	felix	felix	ADJ
ap-2241	1	92	-	-	PUNCT
ap-2241	1	93	hausdorff	hausdorff	NOUN
ap-2241	1	94	-	-	PUNCT
ap-2241	1	95	str.12	str.12	NOUN
ap-2241	1	96	,	,	PUNCT
ap-2241	1	97	d-17498	d-17498	PROPN
ap-2241	1	98	greifswald	greifswald	NOUN
ap-2241	1	99	,	,	PUNCT
ap-2241	1	100	germany	germany	PROPN
ap-2241	1	101	∗	∗	NOUN
ap-2241	1	102	corresponding	correspond	VERB
ap-2241	1	103	author	author	NOUN
ap-2241	1	104	:	:	PUNCT
ap-2241	1	105	julia.duras@physik.uni-greifswald.de	julia.duras@physik.uni-greifswald.de	PROPN
ap-2241	1	106	abstract	abstract	NOUN
ap-2241	1	107	.	.	PUNCT
ap-2241	2	1	for	for	ADP
ap-2241	2	2	satellite	satellite	NOUN
ap-2241	2	3	missions	mission	NOUN
ap-2241	2	4	,	,	PUNCT
ap-2241	2	5	thrusters	thruster	NOUN
ap-2241	2	6	have	have	VERB
ap-2241	2	7	to	to	PART
ap-2241	2	8	be	be	AUX
ap-2241	2	9	qualified	qualified	ADJ
ap-2241	2	10	in	in	ADP
ap-2241	2	11	large	large	ADJ
ap-2241	2	12	vacuum	vacuum	NOUN
ap-2241	2	13	vessels	vessel	NOUN
ap-2241	2	14	to	to	PART
ap-2241	2	15	simulate	simulate	VERB
ap-2241	2	16	the	the	DET
ap-2241	2	17	space	space	NOUN
ap-2241	2	18	environment	environment	NOUN
ap-2241	2	19	.	.	PUNCT
ap-2241	3	1	one	one	NUM
ap-2241	3	2	caveat	caveat	NOUN
ap-2241	3	3	of	of	ADP
ap-2241	3	4	these	these	DET
ap-2241	3	5	experiments	experiment	NOUN
ap-2241	3	6	is	be	AUX
ap-2241	3	7	the	the	DET
ap-2241	3	8	possible	possible	ADJ
ap-2241	3	9	modification	modification	NOUN
ap-2241	3	10	of	of	ADP
ap-2241	3	11	the	the	DET
ap-2241	3	12	beam	beam	NOUN
ap-2241	3	13	properties	property	NOUN
ap-2241	3	14	due	due	ADJ
ap-2241	3	15	to	to	ADP
ap-2241	3	16	the	the	DET
ap-2241	3	17	interaction	interaction	NOUN
ap-2241	3	18	of	of	ADP
ap-2241	3	19	the	the	DET
ap-2241	3	20	energetic	energetic	ADJ
ap-2241	3	21	ions	ion	NOUN
ap-2241	3	22	with	with	ADP
ap-2241	3	23	the	the	DET
ap-2241	3	24	vessel	vessel	NOUN
ap-2241	3	25	walls	wall	NOUN
ap-2241	3	26	.	.	PUNCT
ap-2241	4	1	impinging	impinge	VERB
ap-2241	4	2	ions	ion	NOUN
ap-2241	4	3	can	can	AUX
ap-2241	4	4	produce	produce	VERB
ap-2241	4	5	sputtered	sputtered	ADJ
ap-2241	4	6	impurities	impurity	NOUN
ap-2241	4	7	or	or	CCONJ
ap-2241	4	8	secondary	secondary	ADJ
ap-2241	4	9	electrons	electron	NOUN
ap-2241	4	10	from	from	ADP
ap-2241	4	11	the	the	DET
ap-2241	4	12	wall	wall	NOUN
ap-2241	4	13	.	.	PUNCT
ap-2241	5	1	these	these	PRON
ap-2241	5	2	can	can	AUX
ap-2241	5	3	stream	stream	VERB
ap-2241	5	4	back	back	ADV
ap-2241	5	5	into	into	ADP
ap-2241	5	6	the	the	DET
ap-2241	5	7	acceleration	acceleration	NOUN
ap-2241	5	8	channel	channel	NOUN
ap-2241	5	9	of	of	ADP
ap-2241	5	10	the	the	DET
ap-2241	5	11	thruster	thruster	NOUN
ap-2241	5	12	and	and	CCONJ
ap-2241	5	13	produce	produce	VERB
ap-2241	5	14	co	co	VERB
ap-2241	5	15	-	-	ADJ
ap-2241	5	16	deposited	deposited	ADJ
ap-2241	5	17	layers	layer	NOUN
ap-2241	5	18	.	.	PUNCT
ap-2241	6	1	over	over	ADP
ap-2241	6	2	a	a	DET
ap-2241	6	3	long	long	ADJ
ap-2241	6	4	operation	operation	NOUN
ap-2241	6	5	time	time	NOUN
ap-2241	6	6	of	of	ADP
ap-2241	6	7	thousands	thousand	NOUN
ap-2241	6	8	of	of	ADP
ap-2241	6	9	hours	hour	NOUN
ap-2241	6	10	,	,	PUNCT
ap-2241	6	11	these	these	DET
ap-2241	6	12	layers	layer	NOUN
ap-2241	6	13	can	can	AUX
ap-2241	6	14	modify	modify	VERB
ap-2241	6	15	the	the	DET
ap-2241	6	16	optimized	optimize	VERB
ap-2241	6	17	geometry	geometry	NOUN
ap-2241	6	18	and	and	CCONJ
ap-2241	6	19	induce	induce	VERB
ap-2241	6	20	changes	change	NOUN
ap-2241	6	21	in	in	ADP
ap-2241	6	22	the	the	DET
ap-2241	6	23	ion	ion	NOUN
ap-2241	6	24	beam	beam	NOUN
ap-2241	6	25	properties	property	NOUN
ap-2241	6	26	,	,	PUNCT
ap-2241	6	27	e.g.	e.g.	ADV
ap-2241	6	28	,	,	PUNCT
ap-2241	6	29	broadening	broaden	VERB
ap-2241	6	30	of	of	ADP
ap-2241	6	31	the	the	DET
ap-2241	6	32	angular	angular	ADJ
ap-2241	6	33	distribution	distribution	NOUN
ap-2241	6	34	and	and	CCONJ
ap-2241	6	35	thrust	thrust	VERB
ap-2241	6	36	reduction	reduction	NOUN
ap-2241	6	37	.	.	PUNCT
ap-2241	7	1	a	a	DET
ap-2241	7	2	monte	monte	PROPN
ap-2241	7	3	carlo	carlo	PROPN
ap-2241	7	4	code	code	PROPN
ap-2241	7	5	for	for	ADP
ap-2241	7	6	simulating	simulate	VERB
ap-2241	7	7	the	the	DET
ap-2241	7	8	interaction	interaction	NOUN
ap-2241	7	9	of	of	ADP
ap-2241	7	10	ion	ion	NOUN
ap-2241	7	11	thruster	thruster	NOUN
ap-2241	7	12	beams	beam	NOUN
ap-2241	7	13	with	with	ADP
ap-2241	7	14	vessel	vessel	NOUN
ap-2241	7	15	walls	wall	NOUN
ap-2241	7	16	was	be	AUX
ap-2241	7	17	developed	develop	VERB
ap-2241	7	18	to	to	PART
ap-2241	7	19	study	study	VERB
ap-2241	7	20	these	these	DET
ap-2241	7	21	effects	effect	NOUN
ap-2241	7	22	.	.	PUNCT
ap-2241	8	1	back	back	NOUN
ap-2241	8	2	-	-	PUNCT
ap-2241	8	3	fluxes	flux	NOUN
ap-2241	8	4	of	of	ADP
ap-2241	8	5	a	a	DET
ap-2241	8	6	spt	spt	ADJ
ap-2241	8	7	-	-	PUNCT
ap-2241	8	8	like	like	ADJ
ap-2241	8	9	ion	ion	NOUN
ap-2241	8	10	thruster	thruster	NOUN
ap-2241	8	11	for	for	ADP
ap-2241	8	12	two	two	NUM
ap-2241	8	13	different	different	ADJ
ap-2241	8	14	test	test	NOUN
ap-2241	8	15	-	-	PUNCT
ap-2241	8	16	setups	setup	NOUN
ap-2241	8	17	and	and	CCONJ
ap-2241	8	18	vessel	vessel	NOUN
ap-2241	8	19	geometries	geometry	NOUN
ap-2241	8	20	are	be	AUX
ap-2241	8	21	calculated	calculate	VERB
ap-2241	8	22	.	.	PUNCT
ap-2241	9	1	keywords	keyword	NOUN
ap-2241	9	2	:	:	PUNCT
ap-2241	9	3	ion	ion	NOUN
ap-2241	9	4	thruster	thruster	NOUN
ap-2241	9	5	,	,	PUNCT
ap-2241	9	6	monte	monte	PROPN
ap-2241	9	7	-	-	PUNCT
ap-2241	9	8	carlo	carlo	PROPN
ap-2241	9	9	method	method	NOUN
ap-2241	9	10	,	,	PUNCT
ap-2241	9	11	terrestrial	terrestrial	ADJ
ap-2241	9	12	testing	testing	NOUN
ap-2241	9	13	of	of	ADP
ap-2241	9	14	thrusters	thruster	NOUN
ap-2241	9	15	,	,	PUNCT
ap-2241	9	16	interaction	interaction	NOUN
ap-2241	9	17	with	with	ADP
ap-2241	9	18	vessel	vessel	NOUN
ap-2241	9	19	walls	wall	NOUN
ap-2241	9	20	.	.	PUNCT
ap-2241	10	1	1	1	X
ap-2241	10	2	.	.	X
ap-2241	10	3	introduction	introduction	NOUN
ap-2241	10	4	ion	ion	NOUN
ap-2241	10	5	thrusters	thruster	NOUN
ap-2241	10	6	,	,	PUNCT
ap-2241	10	7	where	where	SCONJ
ap-2241	10	8	the	the	DET
ap-2241	10	9	propellant	propellant	NOUN
ap-2241	10	10	is	be	AUX
ap-2241	10	11	ionized	ionize	VERB
ap-2241	10	12	and	and	CCONJ
ap-2241	10	13	the	the	DET
ap-2241	10	14	ions	ion	NOUN
ap-2241	10	15	are	be	AUX
ap-2241	10	16	accelerated	accelerate	VERB
ap-2241	10	17	by	by	ADP
ap-2241	10	18	electric	electric	ADJ
ap-2241	10	19	fields	field	NOUN
ap-2241	10	20	,	,	PUNCT
ap-2241	10	21	are	be	AUX
ap-2241	10	22	of	of	ADP
ap-2241	10	23	increasing	increase	VERB
ap-2241	10	24	importance	importance	NOUN
ap-2241	10	25	for	for	ADP
ap-2241	10	26	scientific	scientific	ADJ
ap-2241	10	27	and	and	CCONJ
ap-2241	10	28	commercial	commercial	ADJ
ap-2241	10	29	space	space	NOUN
ap-2241	10	30	missions	mission	NOUN
ap-2241	10	31	.	.	PUNCT
ap-2241	11	1	compared	compare	VERB
ap-2241	11	2	to	to	ADP
ap-2241	11	3	commonly	commonly	ADV
ap-2241	11	4	used	use	VERB
ap-2241	11	5	chemical	chemical	NOUN
ap-2241	11	6	thrusters	thruster	NOUN
ap-2241	11	7	they	they	PRON
ap-2241	11	8	have	have	VERB
ap-2241	11	9	a	a	DET
ap-2241	11	10	5	5	NUM
ap-2241	11	11	to	to	PART
ap-2241	11	12	10	10	NUM
ap-2241	11	13	times	time	NOUN
ap-2241	11	14	higher	high	ADJ
ap-2241	11	15	specific	specific	ADJ
ap-2241	11	16	impulse	impulse	NOUN
ap-2241	11	17	[	[	X
ap-2241	11	18	1	1	NUM
ap-2241	11	19	]	]	PUNCT
ap-2241	11	20	.	.	PUNCT
ap-2241	12	1	this	this	PRON
ap-2241	12	2	results	result	VERB
ap-2241	12	3	in	in	ADP
ap-2241	12	4	a	a	DET
ap-2241	12	5	considerably	considerably	ADV
ap-2241	12	6	reduced	reduce	VERB
ap-2241	12	7	propellant	propellant	NOUN
ap-2241	12	8	budget	budget	NOUN
ap-2241	12	9	,	,	PUNCT
ap-2241	12	10	and	and	CCONJ
ap-2241	12	11	a	a	DET
ap-2241	12	12	significant	significant	ADJ
ap-2241	12	13	reduction	reduction	NOUN
ap-2241	12	14	of	of	ADP
ap-2241	12	15	spacecraft	spacecraft	NOUN
ap-2241	12	16	launch	launch	NOUN
ap-2241	12	17	mass	mass	NOUN
ap-2241	12	18	by	by	ADP
ap-2241	12	19	some	some	DET
ap-2241	12	20	100	100	NUM
ap-2241	12	21	to	to	PART
ap-2241	12	22	1000	1000	NUM
ap-2241	12	23	kg	kg	NOUN
ap-2241	12	24	can	can	AUX
ap-2241	12	25	be	be	AUX
ap-2241	12	26	achieved	achieve	VERB
ap-2241	12	27	.	.	PUNCT
ap-2241	13	1	one	one	NUM
ap-2241	13	2	concept	concept	NOUN
ap-2241	13	3	for	for	ADP
ap-2241	13	4	this	this	DET
ap-2241	13	5	electric	electric	ADJ
ap-2241	13	6	propulsion	propulsion	NOUN
ap-2241	13	7	involves	involve	VERB
ap-2241	13	8	grid	grid	NOUN
ap-2241	13	9	-	-	PUNCT
ap-2241	13	10	less	less	ADJ
ap-2241	13	11	ion	ion	NOUN
ap-2241	13	12	thrusters	thruster	NOUN
ap-2241	13	13	,	,	PUNCT
ap-2241	13	14	which	which	PRON
ap-2241	13	15	are	be	AUX
ap-2241	13	16	based	base	VERB
ap-2241	13	17	on	on	ADP
ap-2241	13	18	magnetic	magnetic	ADJ
ap-2241	13	19	confinement	confinement	NOUN
ap-2241	13	20	of	of	ADP
ap-2241	13	21	the	the	DET
ap-2241	13	22	plasma	plasma	NOUN
ap-2241	13	23	electrons	electron	NOUN
ap-2241	13	24	,	,	PUNCT
ap-2241	13	25	where	where	SCONJ
ap-2241	13	26	the	the	DET
ap-2241	13	27	trapped	trap	VERB
ap-2241	13	28	electrons	electron	NOUN
ap-2241	13	29	both	both	CCONJ
ap-2241	13	30	ionize	ionize	VERB
ap-2241	13	31	the	the	DET
ap-2241	13	32	propellant	propellant	NOUN
ap-2241	13	33	and	and	CCONJ
ap-2241	13	34	provide	provide	VERB
ap-2241	13	35	the	the	DET
ap-2241	13	36	potential	potential	ADJ
ap-2241	13	37	drop	drop	NOUN
ap-2241	13	38	for	for	ADP
ap-2241	13	39	ion	ion	NOUN
ap-2241	13	40	acceleration	acceleration	NOUN
ap-2241	13	41	.	.	PUNCT
ap-2241	14	1	due	due	ADP
ap-2241	14	2	to	to	ADP
ap-2241	14	3	their	their	PRON
ap-2241	14	4	low	low	ADJ
ap-2241	14	5	complexity	complexity	NOUN
ap-2241	14	6	in	in	ADP
ap-2241	14	7	terms	term	NOUN
ap-2241	14	8	of	of	ADP
ap-2241	14	9	system	system	NOUN
ap-2241	14	10	architecture	architecture	NOUN
ap-2241	14	11	,	,	PUNCT
ap-2241	14	12	they	they	PRON
ap-2241	14	13	are	be	AUX
ap-2241	14	14	becoming	become	VERB
ap-2241	14	15	of	of	ADP
ap-2241	14	16	increasing	increase	VERB
ap-2241	14	17	interest	interest	NOUN
ap-2241	14	18	in	in	ADP
ap-2241	14	19	particular	particular	ADJ
ap-2241	14	20	for	for	ADP
ap-2241	14	21	commercial	commercial	ADJ
ap-2241	14	22	satellites	satellite	NOUN
ap-2241	14	23	.	.	PUNCT
ap-2241	15	1	in	in	ADP
ap-2241	15	2	order	order	NOUN
ap-2241	15	3	to	to	PART
ap-2241	15	4	reduce	reduce	VERB
ap-2241	15	5	the	the	DET
ap-2241	15	6	development	development	NOUN
ap-2241	15	7	and	and	CCONJ
ap-2241	15	8	qualification	qualification	NOUN
ap-2241	15	9	costs	cost	NOUN
ap-2241	15	10	,	,	PUNCT
ap-2241	15	11	it	it	PRON
ap-2241	15	12	is	be	AUX
ap-2241	15	13	therefore	therefore	ADV
ap-2241	15	14	necessary	necessary	ADJ
ap-2241	15	15	to	to	PART
ap-2241	15	16	set	set	VERB
ap-2241	15	17	up	up	ADP
ap-2241	15	18	and	and	CCONJ
ap-2241	15	19	apply	apply	VERB
ap-2241	15	20	a	a	DET
ap-2241	15	21	series	series	NOUN
ap-2241	15	22	of	of	ADP
ap-2241	15	23	different	different	ADJ
ap-2241	15	24	modeling	modeling	NOUN
ap-2241	15	25	tools	tool	NOUN
ap-2241	15	26	which	which	PRON
ap-2241	15	27	can	can	AUX
ap-2241	15	28	quantitatively	quantitatively	ADV
ap-2241	15	29	describe	describe	VERB
ap-2241	15	30	the	the	DET
ap-2241	15	31	plasma	plasma	NOUN
ap-2241	15	32	physics	physics	NOUN
ap-2241	15	33	within	within	ADP
ap-2241	15	34	the	the	DET
ap-2241	15	35	thruster	thruster	NOUN
ap-2241	15	36	,	,	PUNCT
ap-2241	15	37	and	and	CCONJ
ap-2241	15	38	also	also	ADV
ap-2241	15	39	the	the	DET
ap-2241	15	40	interactions	interaction	NOUN
ap-2241	15	41	of	of	ADP
ap-2241	15	42	the	the	DET
ap-2241	15	43	thruster	thruster	NOUN
ap-2241	15	44	with	with	ADP
ap-2241	15	45	the	the	DET
ap-2241	15	46	testing	testing	NOUN
ap-2241	15	47	environment	environment	NOUN
ap-2241	15	48	and	and	CCONJ
ap-2241	15	49	finally	finally	ADV
ap-2241	15	50	with	with	ADP
ap-2241	15	51	the	the	DET
ap-2241	15	52	satellite	satellite	NOUN
ap-2241	15	53	.	.	PUNCT
ap-2241	16	1	the	the	DET
ap-2241	16	2	integrated	integrate	VERB
ap-2241	16	3	modeling	modeling	NOUN
ap-2241	16	4	strategy	strategy	NOUN
ap-2241	16	5	should	should	AUX
ap-2241	16	6	include	include	VERB
ap-2241	16	7	several	several	ADJ
ap-2241	16	8	modular	modular	ADJ
ap-2241	16	9	components	component	NOUN
ap-2241	16	10	in	in	ADP
ap-2241	16	11	a	a	DET
ap-2241	16	12	consistent	consistent	ADJ
ap-2241	16	13	way	way	NOUN
ap-2241	16	14	in	in	ADP
ap-2241	16	15	order	order	NOUN
ap-2241	16	16	to	to	PART
ap-2241	16	17	provide	provide	VERB
ap-2241	16	18	the	the	DET
ap-2241	16	19	complexity	complexity	NOUN
ap-2241	16	20	and	and	CCONJ
ap-2241	16	21	accuracy	accuracy	NOUN
ap-2241	16	22	required	require	VERB
ap-2241	16	23	for	for	ADP
ap-2241	16	24	the	the	DET
ap-2241	16	25	problem	problem	NOUN
ap-2241	16	26	[	[	X
ap-2241	16	27	2	2	NUM
ap-2241	16	28	]	]	PUNCT
ap-2241	16	29	.	.	PUNCT
ap-2241	17	1	ions	ion	NOUN
ap-2241	17	2	created	create	VERB
ap-2241	17	3	in	in	ADP
ap-2241	17	4	the	the	DET
ap-2241	17	5	thruster	thruster	NOUN
ap-2241	17	6	discharge	discharge	NOUN
ap-2241	17	7	may	may	AUX
ap-2241	17	8	impinge	impinge	VERB
ap-2241	17	9	on	on	ADP
ap-2241	17	10	the	the	DET
ap-2241	17	11	surrounding	surround	VERB
ap-2241	17	12	surfaces	surface	NOUN
ap-2241	17	13	,	,	PUNCT
ap-2241	17	14	which	which	PRON
ap-2241	17	15	can	can	AUX
ap-2241	17	16	induce	induce	VERB
ap-2241	17	17	sputter	sputter	NOUN
ap-2241	17	18	erosion	erosion	NOUN
ap-2241	17	19	and	and	CCONJ
ap-2241	17	20	redeposition	redeposition	NOUN
ap-2241	17	21	of	of	ADP
ap-2241	17	22	eroded	eroded	ADJ
ap-2241	17	23	material	material	NOUN
ap-2241	17	24	.	.	PUNCT
ap-2241	18	1	depending	depend	VERB
ap-2241	18	2	on	on	ADP
ap-2241	18	3	the	the	DET
ap-2241	18	4	surface	surface	NOUN
ap-2241	18	5	region	region	NOUN
ap-2241	18	6	,	,	PUNCT
ap-2241	18	7	this	this	PRON
ap-2241	18	8	may	may	AUX
ap-2241	18	9	affect	affect	VERB
ap-2241	18	10	the	the	DET
ap-2241	18	11	operational	operational	ADJ
ap-2241	18	12	and	and	CCONJ
ap-2241	18	13	performance	performance	NOUN
ap-2241	18	14	characteristics	characteristic	NOUN
ap-2241	18	15	of	of	ADP
ap-2241	18	16	the	the	DET
ap-2241	18	17	thruster	thruster	NOUN
ap-2241	18	18	itself	itself	PRON
ap-2241	18	19	,	,	PUNCT
ap-2241	18	20	of	of	ADP
ap-2241	18	21	the	the	DET
ap-2241	18	22	ion	ion	NOUN
ap-2241	18	23	thruster	thruster	NOUN
ap-2241	18	24	module	module	NOUN
ap-2241	18	25	,	,	PUNCT
ap-2241	18	26	or	or	CCONJ
ap-2241	18	27	even	even	ADV
ap-2241	18	28	of	of	ADP
ap-2241	18	29	the	the	DET
ap-2241	18	30	whole	whole	ADJ
ap-2241	18	31	satellite	satellite	NOUN
ap-2241	18	32	.	.	PUNCT
ap-2241	19	1	for	for	ADP
ap-2241	19	2	the	the	DET
ap-2241	19	3	simulation	simulation	NOUN
ap-2241	19	4	,	,	PUNCT
ap-2241	19	5	one	one	PRON
ap-2241	19	6	can	can	AUX
ap-2241	19	7	distinguish	distinguish	VERB
ap-2241	19	8	:	:	PUNCT
ap-2241	19	9	(	(	PUNCT
ap-2241	19	10	a	a	X
ap-2241	19	11	)	)	PUNCT
ap-2241	19	12	the	the	DET
ap-2241	19	13	impact	impact	NOUN
ap-2241	19	14	on	on	ADP
ap-2241	19	15	the	the	DET
ap-2241	19	16	inner	inner	ADJ
ap-2241	19	17	thruster	thruster	NOUN
ap-2241	19	18	surface	surface	NOUN
ap-2241	19	19	by	by	ADP
ap-2241	19	20	ions	ion	NOUN
ap-2241	19	21	generated	generate	VERB
ap-2241	19	22	in	in	ADP
ap-2241	19	23	the	the	DET
ap-2241	19	24	inner	inner	ADJ
ap-2241	19	25	thruster	thruster	NOUN
ap-2241	19	26	discharge	discharge	NOUN
ap-2241	19	27	.	.	PUNCT
ap-2241	20	1	(	(	PUNCT
ap-2241	20	2	b	b	X
ap-2241	20	3	)	)	PUNCT
ap-2241	20	4	the	the	DET
ap-2241	20	5	impact	impact	NOUN
ap-2241	20	6	on	on	ADP
ap-2241	20	7	the	the	DET
ap-2241	20	8	exit	exit	NOUN
ap-2241	20	9	-	-	PUNCT
ap-2241	20	10	sided	sided	ADJ
ap-2241	20	11	surface	surface	NOUN
ap-2241	20	12	of	of	ADP
ap-2241	20	13	the	the	DET
ap-2241	20	14	thruster	thruster	NOUN
ap-2241	20	15	and	and	CCONJ
ap-2241	20	16	the	the	DET
ap-2241	20	17	neutralizing	neutralizing	ADJ
ap-2241	20	18	electron	electron	NOUN
ap-2241	20	19	source	source	NOUN
ap-2241	20	20	by	by	ADP
ap-2241	20	21	ions	ion	NOUN
ap-2241	20	22	generated	generate	VERB
ap-2241	20	23	in	in	ADP
ap-2241	20	24	the	the	DET
ap-2241	20	25	plasma	plasma	NOUN
ap-2241	20	26	plume	plume	NOUN
ap-2241	20	27	downstream	downstream	VERB
ap-2241	20	28	the	the	DET
ap-2241	20	29	thruster	thruster	NOUN
ap-2241	20	30	exit	exit	NOUN
ap-2241	20	31	.	.	PUNCT
ap-2241	21	1	(	(	PUNCT
ap-2241	21	2	c	c	X
ap-2241	21	3	)	)	PUNCT
ap-2241	21	4	the	the	DET
ap-2241	21	5	impact	impact	NOUN
ap-2241	21	6	on	on	ADP
ap-2241	21	7	the	the	DET
ap-2241	21	8	satellite	satellite	NOUN
ap-2241	21	9	surface	surface	NOUN
ap-2241	21	10	producing	produce	VERB
ap-2241	21	11	erosion	erosion	NOUN
ap-2241	21	12	and	and	CCONJ
ap-2241	21	13	redeposition	redeposition	NOUN
ap-2241	21	14	.	.	PUNCT
ap-2241	22	1	(	(	PUNCT
ap-2241	22	2	d	d	X
ap-2241	22	3	)	)	PUNCT
ap-2241	22	4	the	the	DET
ap-2241	22	5	impact	impact	NOUN
ap-2241	22	6	on	on	ADP
ap-2241	22	7	the	the	DET
ap-2241	22	8	vacuum	vacuum	PROPN
ap-2241	22	9	chamber	chamber	NOUN
ap-2241	22	10	walls	wall	NOUN
ap-2241	22	11	during	during	ADP
ap-2241	22	12	testing	testing	NOUN
ap-2241	22	13	and	and	CCONJ
ap-2241	22	14	life	life	NOUN
ap-2241	22	15	-	-	PUNCT
ap-2241	22	16	time	time	NOUN
ap-2241	22	17	qualification	qualification	NOUN
ap-2241	22	18	,	,	PUNCT
ap-2241	22	19	creating	create	VERB
ap-2241	22	20	redeposition	redeposition	NOUN
ap-2241	22	21	onto	onto	ADP
ap-2241	22	22	the	the	DET
ap-2241	22	23	thruster	thruster	NOUN
ap-2241	22	24	and	and	CCONJ
ap-2241	22	25	thruster	thruster	NOUN
ap-2241	22	26	module	module	NOUN
ap-2241	22	27	surface	surface	NOUN
ap-2241	22	28	.	.	PUNCT
ap-2241	23	1	the	the	DET
ap-2241	23	2	proposed	propose	VERB
ap-2241	23	3	multi	multi	ADJ
ap-2241	23	4	-	-	NOUN
ap-2241	23	5	scale	scale	ADJ
ap-2241	23	6	modeling	modeling	NOUN
ap-2241	23	7	strategy	strategy	NOUN
ap-2241	23	8	is	be	AUX
ap-2241	23	9	well	well	ADV
ap-2241	23	10	suited	suited	ADJ
ap-2241	23	11	to	to	PART
ap-2241	23	12	address	address	VERB
ap-2241	23	13	these	these	DET
ap-2241	23	14	ion	ion	NOUN
ap-2241	23	15	impingement	impingement	ADJ
ap-2241	23	16	effects	effect	NOUN
ap-2241	23	17	.	.	PUNCT
ap-2241	24	1	the	the	DET
ap-2241	24	2	outline	outline	NOUN
ap-2241	24	3	of	of	ADP
ap-2241	24	4	the	the	DET
ap-2241	24	5	paper	paper	NOUN
ap-2241	24	6	is	be	AUX
ap-2241	24	7	as	as	SCONJ
ap-2241	24	8	follows	follow	VERB
ap-2241	24	9	:	:	PUNCT
ap-2241	24	10	the	the	DET
ap-2241	24	11	modeling	modeling	NOUN
ap-2241	24	12	strategy	strategy	NOUN
ap-2241	24	13	is	be	AUX
ap-2241	24	14	described	describe	VERB
ap-2241	24	15	and	and	CCONJ
ap-2241	24	16	the	the	DET
ap-2241	24	17	problems	problem	NOUN
ap-2241	24	18	of	of	ADP
ap-2241	24	19	artifacts	artifact	NOUN
ap-2241	24	20	during	during	ADP
ap-2241	24	21	terrestrial	terrestrial	ADJ
ap-2241	24	22	qualifications	qualification	NOUN
ap-2241	24	23	are	be	AUX
ap-2241	24	24	outlined	outline	VERB
ap-2241	24	25	.	.	PUNCT
ap-2241	25	1	as	as	ADP
ap-2241	25	2	one	one	NUM
ap-2241	25	3	example	example	NOUN
ap-2241	25	4	of	of	ADP
ap-2241	25	5	this	this	DET
ap-2241	25	6	modeling	modeling	NOUN
ap-2241	25	7	,	,	PUNCT
ap-2241	25	8	the	the	DET
ap-2241	25	9	influence	influence	NOUN
ap-2241	25	10	of	of	ADP
ap-2241	25	11	the	the	DET
ap-2241	25	12	testsetups	testsetup	NOUN
ap-2241	25	13	on	on	ADP
ap-2241	25	14	particle	particle	NOUN
ap-2241	25	15	back	back	ADJ
ap-2241	25	16	-	-	PUNCT
ap-2241	25	17	fluxes	flux	NOUN
ap-2241	25	18	towards	towards	ADP
ap-2241	25	19	the	the	DET
ap-2241	25	20	ion	ion	NOUN
ap-2241	25	21	thruster	thruster	NOUN
ap-2241	25	22	channel	channel	NOUN
ap-2241	25	23	is	be	AUX
ap-2241	25	24	studied	study	VERB
ap-2241	25	25	with	with	ADP
ap-2241	25	26	a	a	DET
ap-2241	25	27	monte	monte	PROPN
ap-2241	25	28	carlo	carlo	NOUN
ap-2241	25	29	model	model	NOUN
ap-2241	25	30	for	for	ADP
ap-2241	25	31	an	an	DET
ap-2241	25	32	spt	spt	ADJ
ap-2241	25	33	-	-	PUNCT
ap-2241	25	34	like	like	ADJ
ap-2241	25	35	ion	ion	NOUN
ap-2241	25	36	thruster	thruster	NOUN
ap-2241	25	37	.	.	PUNCT
ap-2241	26	1	finally	finally	ADV
ap-2241	26	2	,	,	PUNCT
ap-2241	26	3	the	the	DET
ap-2241	26	4	results	result	NOUN
ap-2241	26	5	are	be	AUX
ap-2241	26	6	summarized	summarize	VERB
ap-2241	26	7	.	.	PUNCT
ap-2241	27	1	2	2	X
ap-2241	27	2	.	.	X
ap-2241	27	3	modeling	model	VERB
ap-2241	27	4	strategy	strategy	NOUN
ap-2241	27	5	the	the	DET
ap-2241	27	6	most	most	ADV
ap-2241	27	7	complete	complete	ADJ
ap-2241	27	8	model	model	NOUN
ap-2241	27	9	resolving	resolve	VERB
ap-2241	27	10	all	all	DET
ap-2241	27	11	time	time	NOUN
ap-2241	27	12	scales	scale	NOUN
ap-2241	27	13	of	of	ADP
ap-2241	27	14	ion	ion	NOUN
ap-2241	27	15	thrusters	thruster	NOUN
ap-2241	27	16	would	would	AUX
ap-2241	27	17	be	be	AUX
ap-2241	27	18	a	a	DET
ap-2241	27	19	direct	direct	ADJ
ap-2241	27	20	coupling	coupling	NOUN
ap-2241	27	21	of	of	ADP
ap-2241	27	22	a	a	DET
ap-2241	27	23	kinetic	kinetic	ADJ
ap-2241	27	24	plasma	plasma	NOUN
ap-2241	27	25	model	model	NOUN
ap-2241	27	26	with	with	ADP
ap-2241	27	27	a	a	DET
ap-2241	27	28	molecular	molecular	ADJ
ap-2241	27	29	dynamics	dynamic	NOUN
ap-2241	27	30	model	model	NOUN
ap-2241	27	31	for	for	ADP
ap-2241	27	32	the	the	DET
ap-2241	27	33	walls	wall	NOUN
ap-2241	27	34	.	.	PUNCT
ap-2241	28	1	this	this	PRON
ap-2241	28	2	would	would	AUX
ap-2241	28	3	allow	allow	VERB
ap-2241	28	4	a	a	DET
ap-2241	28	5	fully	fully	ADV
ap-2241	28	6	self	self	NOUN
ap-2241	28	7	-	-	PUNCT
ap-2241	28	8	consistent	consistent	ADJ
ap-2241	28	9	7	7	NUM
ap-2241	28	10	http://dx.doi.org/10.14311/ap.2015.55.0007	http://dx.doi.org/10.14311/ap.2015.55.0007	ADP
ap-2241	28	11	http://ojs.cvut.cz/ojs/index.php/ap	http://ojs.cvut.cz/ojs/index.php/ap	PROPN
ap-2241	28	12	j.	j.	PROPN
ap-2241	28	13	duras	duras	PROPN
ap-2241	28	14	,	,	PUNCT
ap-2241	28	15	o.	o.	PROPN
ap-2241	28	16	kalentev	kalentev	PROPN
ap-2241	28	17	,	,	PUNCT
ap-2241	29	1	r.	r.	PROPN
ap-2241	29	2	schneider	schneider	PROPN
ap-2241	29	3	et	et	PROPN
ap-2241	29	4	al	al	PROPN
ap-2241	29	5	.	.	PROPN
ap-2241	29	6	acta	acta	PROPN
ap-2241	29	7	polytechnica	polytechnica	PROPN
ap-2241	29	8	analysis	analysis	NOUN
ap-2241	29	9	of	of	ADP
ap-2241	29	10	the	the	DET
ap-2241	29	11	complete	complete	ADJ
ap-2241	29	12	system	system	NOUN
ap-2241	29	13	,	,	PUNCT
ap-2241	29	14	including	include	VERB
ap-2241	29	15	plasma	plasma	NOUN
ap-2241	29	16	dynamics	dynamic	NOUN
ap-2241	29	17	,	,	PUNCT
ap-2241	29	18	possible	possible	ADJ
ap-2241	29	19	erosion	erosion	NOUN
ap-2241	29	20	of	of	ADP
ap-2241	29	21	the	the	DET
ap-2241	29	22	thruster	thruster	NOUN
ap-2241	29	23	walls	wall	NOUN
ap-2241	29	24	and	and	CCONJ
ap-2241	29	25	the	the	DET
ap-2241	29	26	interaction	interaction	NOUN
ap-2241	29	27	of	of	ADP
ap-2241	29	28	the	the	DET
ap-2241	29	29	exhausted	exhausted	ADJ
ap-2241	29	30	ions	ion	NOUN
ap-2241	29	31	with	with	ADP
ap-2241	29	32	the	the	DET
ap-2241	29	33	surrounding	surround	VERB
ap-2241	29	34	satellite	satellite	NOUN
ap-2241	29	35	surfaces	surface	NOUN
ap-2241	29	36	or	or	CCONJ
ap-2241	29	37	,	,	PUNCT
ap-2241	29	38	during	during	ADP
ap-2241	29	39	testing	testing	NOUN
ap-2241	29	40	and	and	CCONJ
ap-2241	29	41	qualification	qualification	NOUN
ap-2241	29	42	,	,	PUNCT
ap-2241	29	43	with	with	ADP
ap-2241	29	44	the	the	DET
ap-2241	29	45	testing	testing	NOUN
ap-2241	29	46	environment	environment	NOUN
ap-2241	29	47	,	,	PUNCT
ap-2241	29	48	like	like	ADP
ap-2241	29	49	the	the	DET
ap-2241	29	50	vacuum	vacuum	PROPN
ap-2241	29	51	chamber	chamber	NOUN
ap-2241	29	52	walls	wall	NOUN
ap-2241	29	53	.	.	PUNCT
ap-2241	30	1	this	this	DET
ap-2241	30	2	type	type	NOUN
ap-2241	30	3	of	of	ADP
ap-2241	30	4	solution	solution	NOUN
ap-2241	30	5	is	be	AUX
ap-2241	30	6	not	not	PART
ap-2241	30	7	feasible	feasible	ADJ
ap-2241	30	8	,	,	PUNCT
ap-2241	30	9	due	due	ADP
ap-2241	30	10	to	to	ADP
ap-2241	30	11	the	the	DET
ap-2241	30	12	tremendous	tremendous	ADJ
ap-2241	30	13	computational	computational	ADJ
ap-2241	30	14	costs	cost	NOUN
ap-2241	30	15	and	and	CCONJ
ap-2241	30	16	the	the	DET
ap-2241	30	17	high	high	ADJ
ap-2241	30	18	complexity	complexity	NOUN
ap-2241	30	19	of	of	ADP
ap-2241	30	20	this	this	DET
ap-2241	30	21	combined	combine	VERB
ap-2241	30	22	model	model	NOUN
ap-2241	30	23	.	.	PUNCT
ap-2241	31	1	instead	instead	ADV
ap-2241	31	2	,	,	PUNCT
ap-2241	31	3	we	we	PRON
ap-2241	31	4	propose	propose	VERB
ap-2241	31	5	to	to	PART
ap-2241	31	6	use	use	VERB
ap-2241	31	7	a	a	DET
ap-2241	31	8	hierarchical	hierarchical	ADJ
ap-2241	31	9	multi	multi	ADJ
ap-2241	31	10	-	-	ADJ
ap-2241	31	11	scale	scale	ADJ
ap-2241	31	12	set	set	NOUN
ap-2241	31	13	of	of	ADP
ap-2241	31	14	models	model	NOUN
ap-2241	31	15	,	,	PUNCT
ap-2241	31	16	in	in	ADP
ap-2241	31	17	which	which	PRON
ap-2241	31	18	the	the	DET
ap-2241	31	19	parameterization	parameterization	NOUN
ap-2241	31	20	for	for	ADP
ap-2241	31	21	a	a	DET
ap-2241	31	22	lower	low	ADJ
ap-2241	31	23	hierarchy	hierarchy	NOUN
ap-2241	31	24	model	model	NOUN
ap-2241	31	25	can	can	AUX
ap-2241	31	26	be	be	AUX
ap-2241	31	27	deduced	deduce	VERB
ap-2241	31	28	from	from	ADP
ap-2241	31	29	a	a	DET
ap-2241	31	30	higher	high	ADJ
ap-2241	31	31	level	level	NOUN
ap-2241	31	32	model	model	NOUN
ap-2241	31	33	.	.	PUNCT
ap-2241	32	1	for	for	ADP
ap-2241	32	2	example	example	NOUN
ap-2241	32	3	,	,	PUNCT
ap-2241	32	4	a	a	DET
ap-2241	32	5	3d	3d	NUM
ap-2241	32	6	particle	particle	NOUN
ap-2241	32	7	-	-	PUNCT
ap-2241	32	8	in	in	ADP
ap-2241	32	9	-	-	PUNCT
ap-2241	32	10	cell	cell	NOUN
ap-2241	32	11	(	(	PUNCT
ap-2241	32	12	pic	pic	NOUN
ap-2241	32	13	)	)	PUNCT
ap-2241	32	14	model	model	NOUN
ap-2241	32	15	can	can	AUX
ap-2241	32	16	deliver	deliver	VERB
ap-2241	32	17	a	a	DET
ap-2241	32	18	parameterization	parameterization	NOUN
ap-2241	32	19	of	of	ADP
ap-2241	32	20	turbulence	turbulence	NOUN
ap-2241	32	21	effects	effect	NOUN
ap-2241	32	22	by	by	ADP
ap-2241	32	23	appropriate	appropriate	ADJ
ap-2241	32	24	anomalous	anomalous	ADJ
ap-2241	32	25	transport	transport	NOUN
ap-2241	32	26	coefficients	coefficient	NOUN
ap-2241	32	27	.	.	PUNCT
ap-2241	33	1	transport	transport	NOUN
ap-2241	33	2	coefficients	coefficient	NOUN
ap-2241	33	3	based	base	VERB
ap-2241	33	4	on	on	ADP
ap-2241	33	5	these	these	DET
ap-2241	33	6	runs	run	NOUN
ap-2241	33	7	could	could	AUX
ap-2241	33	8	then	then	ADV
ap-2241	33	9	be	be	AUX
ap-2241	33	10	used	use	VERB
ap-2241	33	11	in	in	ADP
ap-2241	33	12	a	a	DET
ap-2241	33	13	2d	2d	NUM
ap-2241	33	14	pic	pic	NOUN
ap-2241	33	15	,	,	PUNCT
ap-2241	33	16	which	which	PRON
ap-2241	33	17	is	be	AUX
ap-2241	33	18	more	more	ADV
ap-2241	33	19	practical	practical	ADJ
ap-2241	33	20	for	for	ADP
ap-2241	33	21	production	production	NOUN
ap-2241	33	22	runs	run	NOUN
ap-2241	33	23	.	.	PUNCT
ap-2241	34	1	to	to	PART
ap-2241	34	2	get	get	VERB
ap-2241	34	3	a	a	DET
ap-2241	34	4	correct	correct	ADJ
ap-2241	34	5	description	description	NOUN
ap-2241	34	6	of	of	ADP
ap-2241	34	7	both	both	CCONJ
ap-2241	34	8	the	the	DET
ap-2241	34	9	thruster	thruster	NOUN
ap-2241	34	10	and	and	CCONJ
ap-2241	34	11	the	the	DET
ap-2241	34	12	plume	plume	NOUN
ap-2241	34	13	plasma	plasma	NOUN
ap-2241	34	14	,	,	PUNCT
ap-2241	34	15	one	one	PRON
ap-2241	34	16	has	have	VERB
ap-2241	34	17	to	to	PART
ap-2241	34	18	solve	solve	VERB
ap-2241	34	19	a	a	DET
ap-2241	34	20	kinetic	kinetic	ADJ
ap-2241	34	21	problem	problem	NOUN
ap-2241	34	22	for	for	ADP
ap-2241	34	23	the	the	DET
ap-2241	34	24	whole	whole	ADJ
ap-2241	34	25	region	region	NOUN
ap-2241	34	26	of	of	ADP
ap-2241	34	27	interes	intere	NOUN
ap-2241	34	28	,	,	PUNCT
ap-2241	34	29	t	t	NOUN
ap-2241	34	30	including	include	VERB
ap-2241	34	31	all	all	DET
ap-2241	34	32	significant	significant	ADJ
ap-2241	34	33	physical	physical	ADJ
ap-2241	34	34	processes	process	NOUN
ap-2241	34	35	.	.	PUNCT
ap-2241	35	1	these	these	PRON
ap-2241	35	2	are	be	AUX
ap-2241	35	3	collisions	collision	NOUN
ap-2241	35	4	,	,	PUNCT
ap-2241	35	5	turbulence	turbulence	NOUN
ap-2241	35	6	effects	effect	NOUN
ap-2241	35	7	,	,	PUNCT
ap-2241	35	8	surface	surface	NOUN
ap-2241	35	9	driven	drive	VERB
ap-2241	35	10	sheath	sheath	NOUN
ap-2241	35	11	instabilities	instability	NOUN
ap-2241	35	12	and	and	CCONJ
ap-2241	35	13	breathing	breathing	NOUN
ap-2241	35	14	modes	mode	NOUN
ap-2241	35	15	.	.	PUNCT
ap-2241	36	1	a	a	DET
ap-2241	36	2	pic	pic	NOUN
ap-2241	36	3	model	model	NOUN
ap-2241	36	4	is	be	AUX
ap-2241	36	5	therefore	therefore	ADV
ap-2241	36	6	a	a	DET
ap-2241	36	7	natural	natural	ADJ
ap-2241	36	8	choice	choice	NOUN
ap-2241	36	9	for	for	ADP
ap-2241	36	10	this	this	DET
ap-2241	36	11	problem	problem	NOUN
ap-2241	36	12	.	.	PUNCT
ap-2241	37	1	in	in	ADP
ap-2241	37	2	addition	addition	NOUN
ap-2241	37	3	,	,	PUNCT
ap-2241	37	4	similarity	similarity	NOUN
ap-2241	37	5	scaling	scaling	NOUN
ap-2241	37	6	is	be	AUX
ap-2241	37	7	applied	apply	VERB
ap-2241	37	8	to	to	PART
ap-2241	37	9	further	far	ADV
ap-2241	37	10	reduce	reduce	VERB
ap-2241	37	11	the	the	DET
ap-2241	37	12	calculation	calculation	NOUN
ap-2241	37	13	costs	cost	NOUN
ap-2241	37	14	[	[	X
ap-2241	37	15	3	3	NUM
ap-2241	37	16	]	]	PUNCT
ap-2241	37	17	.	.	PUNCT
ap-2241	38	1	in	in	ADP
ap-2241	38	2	order	order	NOUN
ap-2241	38	3	to	to	PART
ap-2241	38	4	describe	describe	VERB
ap-2241	38	5	erosion	erosion	NOUN
ap-2241	38	6	-	-	PUNCT
ap-2241	38	7	redeposition	redeposition	NOUN
ap-2241	38	8	processes	process	NOUN
ap-2241	38	9	,	,	PUNCT
ap-2241	38	10	one	one	PRON
ap-2241	38	11	can	can	AUX
ap-2241	38	12	use	use	VERB
ap-2241	38	13	various	various	ADJ
ap-2241	38	14	approximation	approximation	NOUN
ap-2241	38	15	levels	level	NOUN
ap-2241	38	16	of	of	ADP
ap-2241	38	17	the	the	DET
ap-2241	38	18	model	model	NOUN
ap-2241	38	19	.	.	PUNCT
ap-2241	39	1	the	the	DET
ap-2241	39	2	most	most	ADV
ap-2241	39	3	thorough	thorough	ADJ
ap-2241	39	4	description	description	NOUN
ap-2241	39	5	is	be	AUX
ap-2241	39	6	given	give	VERB
ap-2241	39	7	by	by	ADP
ap-2241	39	8	the	the	DET
ap-2241	39	9	full	full	ADJ
ap-2241	39	10	molecular	molecular	ADJ
ap-2241	39	11	dynamic	dynamic	ADJ
ap-2241	39	12	model	model	NOUN
ap-2241	39	13	.	.	PUNCT
ap-2241	40	1	however	however	ADV
ap-2241	40	2	,	,	PUNCT
ap-2241	40	3	this	this	PRON
ap-2241	40	4	would	would	AUX
ap-2241	40	5	be	be	AUX
ap-2241	40	6	far	far	ADV
ap-2241	40	7	too	too	ADV
ap-2241	40	8	time	time	NOUN
ap-2241	40	9	-	-	PUNCT
ap-2241	40	10	consuming	consume	VERB
ap-2241	40	11	,	,	PUNCT
ap-2241	40	12	because	because	SCONJ
ap-2241	40	13	it	it	PRON
ap-2241	40	14	resolves	resolve	VERB
ap-2241	40	15	each	each	DET
ap-2241	40	16	individual	individual	ADJ
ap-2241	40	17	atom	atom	NOUN
ap-2241	40	18	and	and	CCONJ
ap-2241	40	19	their	their	PRON
ap-2241	40	20	interactions	interaction	NOUN
ap-2241	40	21	.	.	PUNCT
ap-2241	41	1	the	the	DET
ap-2241	41	2	next	next	ADJ
ap-2241	41	3	level	level	NOUN
ap-2241	41	4	can	can	AUX
ap-2241	41	5	be	be	AUX
ap-2241	41	6	represented	represent	VERB
ap-2241	41	7	by	by	ADP
ap-2241	41	8	the	the	DET
ap-2241	41	9	binary	binary	PROPN
ap-2241	41	10	collision	collision	PROPN
ap-2241	41	11	cascade	cascade	NOUN
ap-2241	41	12	model	model	NOUN
ap-2241	41	13	,	,	PUNCT
ap-2241	41	14	which	which	PRON
ap-2241	41	15	assumes	assume	VERB
ap-2241	41	16	an	an	DET
ap-2241	41	17	amorphous	amorphous	ADJ
ap-2241	41	18	target	target	NOUN
ap-2241	41	19	and	and	CCONJ
ap-2241	41	20	the	the	DET
ap-2241	41	21	interaction	interaction	NOUN
ap-2241	41	22	of	of	ADP
ap-2241	41	23	particles	particle	NOUN
ap-2241	41	24	with	with	ADP
ap-2241	41	25	the	the	DET
ap-2241	41	26	solid	solid	NOUN
ap-2241	41	27	based	base	VERB
ap-2241	41	28	on	on	ADP
ap-2241	41	29	heavy	heavy	ADJ
ap-2241	41	30	particle	particle	NOUN
ap-2241	41	31	collisions	collision	NOUN
ap-2241	41	32	with	with	ADP
ap-2241	41	33	ions	ion	NOUN
ap-2241	41	34	,	,	PUNCT
ap-2241	41	35	and	and	CCONJ
ap-2241	41	36	additional	additional	ADJ
ap-2241	41	37	losses	loss	NOUN
ap-2241	41	38	with	with	ADP
ap-2241	41	39	electrons	electron	NOUN
ap-2241	41	40	acting	act	VERB
ap-2241	41	41	as	as	ADP
ap-2241	41	42	a	a	DET
ap-2241	41	43	viscous	viscous	ADJ
ap-2241	41	44	force	force	NOUN
ap-2241	41	45	.	.	PUNCT
ap-2241	42	1	this	this	DET
ap-2241	42	2	model	model	NOUN
ap-2241	42	3	can	can	AUX
ap-2241	42	4	use	use	VERB
ap-2241	42	5	the	the	DET
ap-2241	42	6	detailed	detailed	ADJ
ap-2241	42	7	information	information	NOUN
ap-2241	42	8	about	about	ADP
ap-2241	42	9	flux	flux	NOUN
ap-2241	42	10	distributions	distribution	NOUN
ap-2241	42	11	provided	provide	VERB
ap-2241	42	12	by	by	ADP
ap-2241	42	13	the	the	DET
ap-2241	42	14	pic	pic	NOUN
ap-2241	42	15	code	code	NOUN
ap-2241	42	16	,	,	PUNCT
ap-2241	42	17	and	and	CCONJ
ap-2241	42	18	can	can	AUX
ap-2241	42	19	then	then	ADV
ap-2241	42	20	,	,	PUNCT
ap-2241	42	21	on	on	ADP
ap-2241	42	22	the	the	DET
ap-2241	42	23	basis	basis	NOUN
ap-2241	42	24	of	of	ADP
ap-2241	42	25	this	this	PRON
ap-2241	42	26	,	,	PUNCT
ap-2241	42	27	the	the	DET
ap-2241	42	28	erosion	erosion	NOUN
ap-2241	42	29	response	response	NOUN
ap-2241	42	30	of	of	ADP
ap-2241	42	31	the	the	DET
ap-2241	42	32	materials	material	NOUN
ap-2241	42	33	.	.	PUNCT
ap-2241	43	1	the	the	DET
ap-2241	43	2	most	most	ADV
ap-2241	43	3	crude	crude	ADJ
ap-2241	43	4	approximation	approximation	NOUN
ap-2241	43	5	is	be	AUX
ap-2241	43	6	given	give	VERB
ap-2241	43	7	by	by	ADP
ap-2241	43	8	a	a	DET
ap-2241	43	9	monte	monte	PROPN
ap-2241	43	10	-	-	PUNCT
ap-2241	43	11	carlo	carlo	PROPN
ap-2241	43	12	(	(	PUNCT
ap-2241	43	13	mc	mc	PROPN
ap-2241	43	14	)	)	PUNCT
ap-2241	43	15	procedure	procedure	NOUN
ap-2241	43	16	simulating	simulate	VERB
ap-2241	43	17	erosion	erosion	NOUN
ap-2241	43	18	-	-	PUNCT
ap-2241	43	19	redeposition	redeposition	NOUN
ap-2241	43	20	on	on	ADP
ap-2241	43	21	the	the	DET
ap-2241	43	22	basis	basis	NOUN
ap-2241	43	23	of	of	ADP
ap-2241	43	24	sputter	sputter	NOUN
ap-2241	43	25	yield	yield	NOUN
ap-2241	43	26	tables	table	NOUN
ap-2241	43	27	calculated	calculate	VERB
ap-2241	43	28	from	from	ADP
ap-2241	43	29	the	the	DET
ap-2241	43	30	binary	binary	ADJ
ap-2241	43	31	-	-	PUNCT
ap-2241	43	32	collision	collision	NOUN
ap-2241	43	33	cascade	cascade	NOUN
ap-2241	43	34	or	or	CCONJ
ap-2241	43	35	molecular	molecular	ADJ
ap-2241	43	36	dynamics	dynamic	NOUN
ap-2241	43	37	model	model	VERB
ap-2241	43	38	together	together	ADV
ap-2241	43	39	with	with	ADP
ap-2241	43	40	information	information	NOUN
ap-2241	43	41	about	about	ADP
ap-2241	43	42	the	the	DET
ap-2241	43	43	plasma	plasma	NOUN
ap-2241	43	44	fluxes	flux	NOUN
ap-2241	43	45	.	.	PUNCT
ap-2241	44	1	this	this	DET
ap-2241	44	2	model	model	NOUN
ap-2241	44	3	is	be	AUX
ap-2241	44	4	particular	particular	ADJ
ap-2241	44	5	useful	useful	ADJ
ap-2241	44	6	due	due	ADP
ap-2241	44	7	to	to	ADP
ap-2241	44	8	its	its	PRON
ap-2241	44	9	simplicity	simplicity	NOUN
ap-2241	44	10	and	and	CCONJ
ap-2241	44	11	flexibility	flexibility	NOUN
ap-2241	44	12	for	for	ADP
ap-2241	44	13	the	the	DET
ap-2241	44	14	quantifying	quantify	VERB
ap-2241	44	15	the	the	DET
ap-2241	44	16	lifetime	lifetime	NOUN
ap-2241	44	17	of	of	ADP
ap-2241	44	18	ion	ion	NOUN
ap-2241	44	19	thrusters	thruster	NOUN
ap-2241	44	20	.	.	PUNCT
ap-2241	45	1	3	3	X
ap-2241	45	2	.	.	X
ap-2241	45	3	artifacts	artifact	NOUN
ap-2241	45	4	during	during	ADP
ap-2241	45	5	terrestrial	terrestrial	ADJ
ap-2241	45	6	measurements	measurement	NOUN
ap-2241	45	7	of	of	ADP
ap-2241	45	8	an	an	DET
ap-2241	45	9	ion	ion	NOUN
ap-2241	45	10	thruster	thruster	NOUN
ap-2241	45	11	terrestrial	terrestrial	ADJ
ap-2241	45	12	qualification	qualification	NOUN
ap-2241	45	13	of	of	ADP
ap-2241	45	14	a	a	DET
ap-2241	45	15	thruster	thruster	NOUN
ap-2241	45	16	differs	differ	VERB
ap-2241	45	17	significantly	significantly	ADV
ap-2241	45	18	from	from	ADP
ap-2241	45	19	outer	outer	ADJ
ap-2241	45	20	space	space	NOUN
ap-2241	45	21	exploitation	exploitation	NOUN
ap-2241	45	22	,	,	PUNCT
ap-2241	45	23	in	in	SCONJ
ap-2241	45	24	that	that	SCONJ
ap-2241	45	25	it	it	PRON
ap-2241	45	26	is	be	AUX
ap-2241	45	27	held	hold	VERB
ap-2241	45	28	in	in	ADP
ap-2241	45	29	a	a	DET
ap-2241	45	30	limited	limited	ADJ
ap-2241	45	31	vessel	vessel	NOUN
ap-2241	45	32	,	,	PUNCT
ap-2241	45	33	which	which	PRON
ap-2241	45	34	can	can	AUX
ap-2241	45	35	create	create	VERB
ap-2241	45	36	various	various	ADJ
ap-2241	45	37	artifacts	artifact	NOUN
ap-2241	45	38	on	on	ADP
ap-2241	45	39	the	the	DET
ap-2241	45	40	measured	measured	ADJ
ap-2241	45	41	thruster	thruster	NOUN
ap-2241	45	42	properties	property	NOUN
ap-2241	45	43	.	.	PUNCT
ap-2241	46	1	for	for	ADP
ap-2241	46	2	example	example	NOUN
ap-2241	46	3	,	,	PUNCT
ap-2241	46	4	the	the	DET
ap-2241	46	5	back	back	ADV
ap-2241	46	6	scattered	scatter	VERB
ap-2241	46	7	flux	flux	NOUN
ap-2241	46	8	from	from	ADP
ap-2241	46	9	the	the	DET
ap-2241	46	10	vessel	vessel	NOUN
ap-2241	46	11	walls	wall	NOUN
ap-2241	46	12	can	can	AUX
ap-2241	46	13	be	be	AUX
ap-2241	46	14	deposited	deposit	VERB
ap-2241	46	15	on	on	ADP
ap-2241	46	16	the	the	DET
ap-2241	46	17	walls	wall	NOUN
ap-2241	46	18	of	of	ADP
ap-2241	46	19	the	the	DET
ap-2241	46	20	thrusters	thruster	NOUN
ap-2241	46	21	,	,	PUNCT
ap-2241	46	22	and	and	CCONJ
ap-2241	46	23	can	can	AUX
ap-2241	46	24	in	in	ADP
ap-2241	46	25	that	that	DET
ap-2241	46	26	way	way	NOUN
ap-2241	46	27	form	form	VERB
ap-2241	46	28	a	a	DET
ap-2241	46	29	conducting	conducting	NOUN
ap-2241	46	30	layer	layer	NOUN
ap-2241	46	31	influencing	influence	VERB
ap-2241	46	32	the	the	DET
ap-2241	46	33	thruster	thruster	NOUN
ap-2241	46	34	operating	operating	NOUN
ap-2241	46	35	regimes	regime	NOUN
ap-2241	46	36	.	.	PUNCT
ap-2241	47	1	these	these	DET
ap-2241	47	2	measurements	measurement	NOUN
ap-2241	47	3	are	be	AUX
ap-2241	47	4	taken	take	VERB
ap-2241	47	5	in	in	ADP
ap-2241	47	6	large	large	ADJ
ap-2241	47	7	vacuum	vacuum	NOUN
ap-2241	47	8	vessels	vessel	NOUN
ap-2241	47	9	,	,	PUNCT
ap-2241	47	10	up	up	ADP
ap-2241	47	11	to	to	PART
ap-2241	47	12	10	10	NUM
ap-2241	47	13	times	time	NOUN
ap-2241	47	14	larger	large	ADJ
ap-2241	47	15	than	than	ADP
ap-2241	47	16	the	the	DET
ap-2241	47	17	thruster	thruster	NOUN
ap-2241	47	18	itself	itself	PRON
ap-2241	47	19	,	,	PUNCT
ap-2241	47	20	in	in	ADP
ap-2241	47	21	order	order	NOUN
ap-2241	47	22	to	to	PART
ap-2241	47	23	provide	provide	VERB
ap-2241	47	24	a	a	DET
ap-2241	47	25	space	space	NOUN
ap-2241	47	26	-	-	PUNCT
ap-2241	47	27	like	like	ADJ
ap-2241	47	28	environment	environment	NOUN
ap-2241	47	29	.	.	PUNCT
ap-2241	48	1	despite	despite	SCONJ
ap-2241	48	2	these	these	DET
ap-2241	48	3	dimensions	dimension	NOUN
ap-2241	48	4	,	,	PUNCT
ap-2241	48	5	however	however	SCONJ
ap-2241	48	6	interactions	interaction	NOUN
ap-2241	48	7	of	of	ADP
ap-2241	48	8	exhausted	exhausted	ADJ
ap-2241	48	9	particles	particle	NOUN
ap-2241	48	10	with	with	ADP
ap-2241	48	11	residual	residual	ADJ
ap-2241	48	12	gas	gas	NOUN
ap-2241	48	13	and	and	CCONJ
ap-2241	48	14	vessel	vessel	NOUN
ap-2241	48	15	walls	wall	NOUN
ap-2241	48	16	still	still	ADV
ap-2241	48	17	take	take	VERB
ap-2241	48	18	place	place	NOUN
ap-2241	48	19	and	and	CCONJ
ap-2241	48	20	can	can	AUX
ap-2241	48	21	modify	modify	VERB
ap-2241	48	22	the	the	DET
ap-2241	48	23	measurements	measurement	NOUN
ap-2241	48	24	.	.	PUNCT
ap-2241	49	1	one	one	NUM
ap-2241	49	2	source	source	NOUN
ap-2241	49	3	of	of	ADP
ap-2241	49	4	differences	difference	NOUN
ap-2241	49	5	between	between	ADP
ap-2241	49	6	measurements	measurement	NOUN
ap-2241	49	7	in	in	ADP
ap-2241	49	8	space	space	NOUN
ap-2241	49	9	and	and	CCONJ
ap-2241	49	10	during	during	ADP
ap-2241	49	11	terrestrial	terrestrial	ADJ
ap-2241	49	12	testing	testing	NOUN
ap-2241	49	13	is	be	AUX
ap-2241	49	14	the	the	DET
ap-2241	49	15	re	re	NOUN
ap-2241	49	16	-	-	NOUN
ap-2241	49	17	deposition	deposition	NOUN
ap-2241	49	18	of	of	ADP
ap-2241	49	19	sputtered	sputtered	ADJ
ap-2241	49	20	particles	particle	NOUN
ap-2241	49	21	inside	inside	ADP
ap-2241	49	22	the	the	DET
ap-2241	49	23	thruster	thruster	NOUN
ap-2241	49	24	channel	channel	NOUN
ap-2241	49	25	or	or	CCONJ
ap-2241	49	26	for	for	ADP
ap-2241	49	27	the	the	DET
ap-2241	49	28	grid	grid	NOUN
ap-2241	49	29	thruster	thruster	NOUN
ap-2241	49	30	at	at	ADP
ap-2241	49	31	the	the	DET
ap-2241	49	32	thruster	thruster	NOUN
ap-2241	49	33	walls	wall	NOUN
ap-2241	49	34	.	.	PUNCT
ap-2241	50	1	the	the	DET
ap-2241	50	2	accelerated	accelerate	VERB
ap-2241	50	3	ions	ion	NOUN
ap-2241	50	4	impinge	impinge	VERB
ap-2241	50	5	on	on	ADP
ap-2241	50	6	the	the	DET
ap-2241	50	7	vessel	vessel	NOUN
ap-2241	50	8	walls	wall	NOUN
ap-2241	50	9	and	and	CCONJ
ap-2241	50	10	produce	produce	VERB
ap-2241	50	11	sputtered	sputtered	ADJ
ap-2241	50	12	impurities	impurity	NOUN
ap-2241	50	13	.	.	PUNCT
ap-2241	51	1	these	these	PRON
ap-2241	51	2	can	can	AUX
ap-2241	51	3	stream	stream	VERB
ap-2241	51	4	back	back	ADV
ap-2241	51	5	towards	towards	ADP
ap-2241	51	6	the	the	DET
ap-2241	51	7	acceleration	acceleration	NOUN
ap-2241	51	8	channel	channel	NOUN
ap-2241	51	9	of	of	ADP
ap-2241	51	10	the	the	DET
ap-2241	51	11	thruster	thruster	NOUN
ap-2241	51	12	and	and	CCONJ
ap-2241	51	13	produce	produce	VERB
ap-2241	51	14	co	co	VERB
ap-2241	51	15	-	-	ADJ
ap-2241	51	16	deposited	deposited	ADJ
ap-2241	51	17	layers	layer	NOUN
ap-2241	51	18	.	.	PUNCT
ap-2241	52	1	over	over	ADP
ap-2241	52	2	a	a	DET
ap-2241	52	3	long	long	ADJ
ap-2241	52	4	operation	operation	NOUN
ap-2241	52	5	time	time	NOUN
ap-2241	52	6	of	of	ADP
ap-2241	52	7	thousands	thousand	NOUN
ap-2241	52	8	of	of	ADP
ap-2241	52	9	hours	hour	NOUN
ap-2241	52	10	,	,	PUNCT
ap-2241	52	11	these	these	DET
ap-2241	52	12	layers	layer	NOUN
ap-2241	52	13	can	can	AUX
ap-2241	52	14	modify	modify	VERB
ap-2241	52	15	the	the	DET
ap-2241	52	16	optimized	optimize	VERB
ap-2241	52	17	geometry	geometry	NOUN
ap-2241	52	18	of	of	ADP
ap-2241	52	19	the	the	DET
ap-2241	52	20	thruster	thruster	NOUN
ap-2241	52	21	channel	channel	NOUN
ap-2241	52	22	or	or	CCONJ
ap-2241	52	23	grids	grid	NOUN
ap-2241	52	24	and	and	CCONJ
ap-2241	52	25	the	the	DET
ap-2241	52	26	inner	inner	ADJ
ap-2241	52	27	wall	wall	PROPN
ap-2241	52	28	surface	surface	PROPN
ap-2241	52	29	.	.	PUNCT
ap-2241	53	1	this	this	PRON
ap-2241	53	2	induces	induce	VERB
ap-2241	53	3	changes	change	NOUN
ap-2241	53	4	in	in	ADP
ap-2241	53	5	the	the	DET
ap-2241	53	6	ion	ion	NOUN
ap-2241	53	7	beam	beam	NOUN
ap-2241	53	8	properties	property	NOUN
ap-2241	53	9	,	,	PUNCT
ap-2241	53	10	e.g.	e.g.	ADV
ap-2241	53	11	,	,	PUNCT
ap-2241	53	12	broadening	broaden	VERB
ap-2241	53	13	of	of	ADP
ap-2241	53	14	the	the	DET
ap-2241	53	15	angular	angular	ADJ
ap-2241	53	16	distribution	distribution	NOUN
ap-2241	53	17	and	and	CCONJ
ap-2241	53	18	thrust	thrust	VERB
ap-2241	53	19	reduction	reduction	NOUN
ap-2241	53	20	,	,	PUNCT
ap-2241	53	21	as	as	SCONJ
ap-2241	53	22	observed	observe	VERB
ap-2241	53	23	in	in	ADP
ap-2241	53	24	the	the	DET
ap-2241	53	25	test	test	NOUN
ap-2241	53	26	campaigns	campaign	NOUN
ap-2241	53	27	of	of	ADP
ap-2241	53	28	hemp	hemp	NOUN
ap-2241	53	29	-	-	PUNCT
ap-2241	53	30	t	t	NOUN
ap-2241	54	1	[	[	X
ap-2241	54	2	4	4	X
ap-2241	54	3	]	]	PUNCT
ap-2241	54	4	and	and	CCONJ
ap-2241	54	5	the	the	DET
ap-2241	54	6	next	next	ADJ
ap-2241	54	7	grid	grid	NOUN
ap-2241	54	8	thruster	thruster	NOUN
ap-2241	54	9	[	[	X
ap-2241	54	10	5	5	NUM
ap-2241	54	11	]	]	PUNCT
ap-2241	54	12	.	.	PUNCT
ap-2241	55	1	a	a	DET
ap-2241	55	2	reduced	reduced	ADJ
ap-2241	55	3	back	back	NOUN
ap-2241	55	4	-	-	PUNCT
ap-2241	55	5	flux	flux	NOUN
ap-2241	55	6	is	be	AUX
ap-2241	55	7	therefore	therefore	ADV
ap-2241	55	8	important	important	ADJ
ap-2241	55	9	to	to	PART
ap-2241	55	10	minimize	minimize	VERB
ap-2241	55	11	artifacts	artifact	NOUN
ap-2241	55	12	in	in	ADP
ap-2241	55	13	the	the	DET
ap-2241	55	14	plume	plume	NOUN
ap-2241	55	15	measurements	measurement	NOUN
ap-2241	55	16	.	.	PUNCT
ap-2241	56	1	due	due	ADP
ap-2241	56	2	to	to	ADP
ap-2241	56	3	the	the	DET
ap-2241	56	4	large	large	ADJ
ap-2241	56	5	size	size	NOUN
ap-2241	56	6	difference	difference	NOUN
ap-2241	56	7	between	between	ADP
ap-2241	56	8	the	the	DET
ap-2241	56	9	thruster	thruster	NOUN
ap-2241	56	10	and	and	CCONJ
ap-2241	56	11	the	the	DET
ap-2241	56	12	vessel	vessel	NOUN
ap-2241	56	13	,	,	PUNCT
ap-2241	56	14	it	it	PRON
ap-2241	56	15	is	be	AUX
ap-2241	56	16	possible	possible	ADJ
ap-2241	56	17	to	to	PART
ap-2241	56	18	parameterize	parameterize	VERB
ap-2241	56	19	the	the	DET
ap-2241	56	20	backscattered	backscattered	ADJ
ap-2241	56	21	flux	flux	NOUN
ap-2241	56	22	from	from	ADP
ap-2241	56	23	the	the	DET
ap-2241	56	24	vessel	vessel	NOUN
ap-2241	56	25	walls	wall	NOUN
ap-2241	56	26	as	as	ADP
ap-2241	56	27	an	an	DET
ap-2241	56	28	effective	effective	ADJ
ap-2241	56	29	source	source	NOUN
ap-2241	56	30	for	for	ADP
ap-2241	56	31	the	the	DET
ap-2241	56	32	mc	mc	PROPN
ap-2241	56	33	erosion	erosion	NOUN
ap-2241	56	34	-	-	PUNCT
ap-2241	56	35	deposition	deposition	NOUN
ap-2241	56	36	code	code	NOUN
ap-2241	56	37	.	.	PUNCT
ap-2241	57	1	this	this	DET
ap-2241	57	2	paper	paper	NOUN
ap-2241	57	3	will	will	AUX
ap-2241	57	4	show	show	VERB
ap-2241	57	5	that	that	SCONJ
ap-2241	57	6	the	the	DET
ap-2241	57	7	position	position	NOUN
ap-2241	57	8	of	of	ADP
ap-2241	57	9	the	the	DET
ap-2241	57	10	thruster	thruster	NOUN
ap-2241	57	11	inside	inside	ADP
ap-2241	57	12	the	the	DET
ap-2241	57	13	vessel	vessel	NOUN
ap-2241	57	14	,	,	PUNCT
ap-2241	57	15	the	the	DET
ap-2241	57	16	wall	wall	NOUN
ap-2241	57	17	material	material	PROPN
ap-2241	57	18	and	and	CCONJ
ap-2241	57	19	the	the	DET
ap-2241	57	20	vessel	vessel	NOUN
ap-2241	57	21	geometry	geometry	NOUN
ap-2241	57	22	play	play	VERB
ap-2241	57	23	important	important	ADJ
ap-2241	57	24	roles	role	NOUN
ap-2241	57	25	and	and	CCONJ
ap-2241	57	26	can	can	AUX
ap-2241	57	27	influence	influence	VERB
ap-2241	57	28	the	the	DET
ap-2241	57	29	plume	plume	NOUN
ap-2241	57	30	measurement	measurement	NOUN
ap-2241	57	31	results	result	VERB
ap-2241	57	32	.	.	PUNCT
ap-2241	58	1	4	4	X
ap-2241	58	2	.	.	X
ap-2241	58	3	description	description	NOUN
ap-2241	58	4	of	of	ADP
ap-2241	58	5	the	the	DET
ap-2241	58	6	monte	monte	PROPN
ap-2241	58	7	carlo	carlo	PROPN
ap-2241	58	8	model	model	NOUN
ap-2241	58	9	the	the	DET
ap-2241	58	10	monte	monte	PROPN
ap-2241	58	11	carlo	carlo	PROPN
ap-2241	58	12	(	(	PUNCT
ap-2241	58	13	mc	mc	PROPN
ap-2241	58	14	)	)	PUNCT
ap-2241	58	15	method	method	NOUN
ap-2241	58	16	is	be	AUX
ap-2241	58	17	a	a	DET
ap-2241	58	18	common	common	ADJ
ap-2241	58	19	approach	approach	NOUN
ap-2241	58	20	for	for	ADP
ap-2241	58	21	plasma	plasma	NOUN
ap-2241	58	22	-	-	PUNCT
ap-2241	58	23	wall	wall	NOUN
ap-2241	58	24	problems	problem	NOUN
ap-2241	58	25	,	,	PUNCT
ap-2241	58	26	for	for	ADP
ap-2241	58	27	example	example	NOUN
ap-2241	58	28	mc	mc	PROPN
ap-2241	58	29	simulations	simulation	NOUN
ap-2241	58	30	of	of	ADP
ap-2241	58	31	sputtering	sputtering	NOUN
ap-2241	58	32	and	and	CCONJ
ap-2241	58	33	re	re	NOUN
ap-2241	58	34	-	-	NOUN
ap-2241	58	35	deposition	deposition	NOUN
ap-2241	58	36	are	be	AUX
ap-2241	58	37	well	well	ADV
ap-2241	58	38	established	establish	VERB
ap-2241	58	39	in	in	ADP
ap-2241	58	40	fusion	fusion	NOUN
ap-2241	58	41	-	-	PUNCT
ap-2241	58	42	oriented	orient	VERB
ap-2241	58	43	studies	study	NOUN
ap-2241	58	44	[	[	X
ap-2241	58	45	6	6	NUM
ap-2241	58	46	]	]	PUNCT
ap-2241	58	47	as	as	SCONJ
ap-2241	58	48	is	be	AUX
ap-2241	58	49	magnetron	magnetron	NOUN
ap-2241	58	50	sputtering	sputter	VERB
ap-2241	58	51	[	[	X
ap-2241	58	52	7	7	NUM
ap-2241	58	53	,	,	PUNCT
ap-2241	58	54	8	8	NUM
ap-2241	58	55	]	]	PUNCT
ap-2241	58	56	.	.	PUNCT
ap-2241	59	1	the	the	DET
ap-2241	59	2	idea	idea	NOUN
ap-2241	59	3	of	of	ADP
ap-2241	59	4	the	the	DET
ap-2241	59	5	monte	monte	PROPN
ap-2241	59	6	carlo	carlo	PROPN
ap-2241	59	7	model	model	NOUN
ap-2241	59	8	is	be	AUX
ap-2241	59	9	to	to	PART
ap-2241	59	10	sample	sample	VERB
ap-2241	59	11	the	the	DET
ap-2241	59	12	primary	primary	ADJ
ap-2241	59	13	distribution	distribution	NOUN
ap-2241	59	14	of	of	ADP
ap-2241	59	15	the	the	DET
ap-2241	59	16	ions	ion	NOUN
ap-2241	59	17	with	with	ADP
ap-2241	59	18	respect	respect	NOUN
ap-2241	59	19	to	to	ADP
ap-2241	59	20	energies	energy	NOUN
ap-2241	59	21	,	,	PUNCT
ap-2241	59	22	angles	angle	NOUN
ap-2241	59	23	and	and	CCONJ
ap-2241	59	24	species	specie	NOUN
ap-2241	59	25	.	.	PUNCT
ap-2241	60	1	these	these	DET
ap-2241	60	2	pseudoparticles	pseudoparticle	NOUN
ap-2241	60	3	are	be	AUX
ap-2241	60	4	followed	follow	VERB
ap-2241	60	5	hitting	hit	VERB
ap-2241	60	6	the	the	DET
ap-2241	60	7	vessel	vessel	NOUN
ap-2241	60	8	walls	wall	NOUN
ap-2241	60	9	and	and	CCONJ
ap-2241	60	10	generating	generate	VERB
ap-2241	60	11	sputtered	sputtered	ADJ
ap-2241	60	12	particles	particle	NOUN
ap-2241	60	13	,	,	PUNCT
ap-2241	60	14	based	base	VERB
ap-2241	60	15	on	on	ADP
ap-2241	60	16	sputter	sputter	NOUN
ap-2241	60	17	rates	rate	NOUN
ap-2241	60	18	calculated	calculate	VERB
ap-2241	60	19	by	by	ADP
ap-2241	60	20	a	a	DET
ap-2241	60	21	binary	binary	ADJ
ap-2241	60	22	collision	collision	NOUN
ap-2241	60	23	cascade	cascade	NOUN
ap-2241	60	24	code	code	NOUN
ap-2241	60	25	.	.	PUNCT
ap-2241	61	1	their	their	PRON
ap-2241	61	2	angular	angular	ADJ
ap-2241	61	3	distributions	distribution	NOUN
ap-2241	61	4	are	be	AUX
ap-2241	61	5	sampled	sample	VERB
ap-2241	61	6	and	and	CCONJ
ap-2241	61	7	the	the	DET
ap-2241	61	8	back	back	NOUN
ap-2241	61	9	-	-	PUNCT
ap-2241	61	10	flow	flow	NOUN
ap-2241	61	11	of	of	ADP
ap-2241	61	12	the	the	DET
ap-2241	61	13	eroded	eroded	ADJ
ap-2241	61	14	particles	particle	NOUN
ap-2241	61	15	from	from	ADP
ap-2241	61	16	the	the	DET
ap-2241	61	17	vessel	vessel	NOUN
ap-2241	61	18	walls	wall	NOUN
ap-2241	61	19	towards	towards	ADP
ap-2241	61	20	the	the	DET
ap-2241	61	21	ion	ion	NOUN
ap-2241	61	22	thruster	thruster	NOUN
ap-2241	61	23	acceleration	acceleration	NOUN
ap-2241	61	24	channel	channel	NOUN
ap-2241	61	25	is	be	AUX
ap-2241	61	26	calculated	calculate	VERB
ap-2241	61	27	.	.	PUNCT
ap-2241	62	1	in	in	ADP
ap-2241	62	2	this	this	DET
ap-2241	62	3	work	work	NOUN
ap-2241	62	4	,	,	PUNCT
ap-2241	62	5	we	we	PRON
ap-2241	62	6	assume	assume	VERB
ap-2241	62	7	that	that	SCONJ
ap-2241	62	8	particles	particle	NOUN
ap-2241	62	9	move	move	VERB
ap-2241	62	10	along	along	ADP
ap-2241	62	11	rays	ray	NOUN
ap-2241	62	12	according	accord	VERB
ap-2241	62	13	to	to	ADP
ap-2241	62	14	their	their	PRON
ap-2241	62	15	source	source	NOUN
ap-2241	62	16	distribution	distribution	NOUN
ap-2241	62	17	.	.	PUNCT
ap-2241	63	1	in	in	ADP
ap-2241	63	2	this	this	DET
ap-2241	63	3	3d	3d	PROPN
ap-2241	63	4	model	model	NOUN
ap-2241	63	5	,	,	PUNCT
ap-2241	63	6	the	the	DET
ap-2241	63	7	vacuum	vacuum	PROPN
ap-2241	63	8	chamber	chamber	PROPN
ap-2241	63	9	is	be	AUX
ap-2241	63	10	assumed	assume	VERB
ap-2241	63	11	to	to	PART
ap-2241	63	12	be	be	AUX
ap-2241	63	13	a	a	DET
ap-2241	63	14	cylinder	cylinder	NOUN
ap-2241	63	15	with	with	ADP
ap-2241	63	16	two	two	NUM
ap-2241	63	17	spherical	spherical	ADJ
ap-2241	63	18	caps	cap	NOUN
ap-2241	63	19	attached	attach	VERB
ap-2241	63	20	to	to	ADP
ap-2241	63	21	its	its	PRON
ap-2241	63	22	ends	end	NOUN
ap-2241	63	23	.	.	PUNCT
ap-2241	64	1	the	the	DET
ap-2241	64	2	angular	angular	ADJ
ap-2241	64	3	source	source	NOUN
ap-2241	64	4	distributions	distribution	NOUN
ap-2241	64	5	of	of	ADP
ap-2241	64	6	the	the	DET
ap-2241	64	7	mean	mean	ADJ
ap-2241	64	8	ion	ion	NOUN
ap-2241	64	9	energy	energy	NOUN
ap-2241	64	10	,	,	PUNCT
ap-2241	64	11	the	the	DET
ap-2241	64	12	current	current	ADJ
ap-2241	64	13	and	and	CCONJ
ap-2241	64	14	the	the	DET
ap-2241	64	15	species	species	NOUN
ap-2241	64	16	fraction	fraction	NOUN
ap-2241	64	17	were	be	AUX
ap-2241	64	18	generated	generate	VERB
ap-2241	64	19	with	with	ADP
ap-2241	64	20	respect	respect	NOUN
ap-2241	64	21	to	to	ADP
ap-2241	64	22	the	the	DET
ap-2241	64	23	emission	emission	NOUN
ap-2241	64	24	angle	angle	NOUN
ap-2241	64	25	θ	θ	PROPN
ap-2241	64	26	,	,	PUNCT
ap-2241	64	27	see	see	VERB
ap-2241	64	28	fig	fig	NOUN
ap-2241	64	29	.	.	PUNCT
ap-2241	65	1	3	3	X
ap-2241	65	2	.	.	X
ap-2241	65	3	as	as	ADP
ap-2241	65	4	an	an	DET
ap-2241	65	5	example	example	NOUN
ap-2241	65	6	,	,	PUNCT
ap-2241	65	7	ion	ion	NOUN
ap-2241	65	8	current	current	ADJ
ap-2241	65	9	and	and	CCONJ
ap-2241	65	10	energy	energy	NOUN
ap-2241	65	11	distributions	distribution	NOUN
ap-2241	65	12	similar	similar	ADJ
ap-2241	65	13	to	to	ADP
ap-2241	65	14	those	those	PRON
ap-2241	65	15	published	publish	VERB
ap-2241	65	16	for	for	ADP
ap-2241	65	17	spt-100	spt-100	X
ap-2241	65	18	[	[	X
ap-2241	65	19	9	9	NUM
ap-2241	65	20	]	]	PUNCT
ap-2241	65	21	are	be	AUX
ap-2241	65	22	used	use	VERB
ap-2241	65	23	.	.	PUNCT
ap-2241	66	1	the	the	DET
ap-2241	66	2	fraction	fraction	NOUN
ap-2241	66	3	of	of	ADP
ap-2241	66	4	xe2	xe2	PROPN
ap-2241	66	5	+	+	NUM
ap-2241	66	6	to	to	ADP
ap-2241	66	7	xe+	xe+	PROPN
ap-2241	66	8	ions	ion	NOUN
ap-2241	66	9	is	be	AUX
ap-2241	66	10	taken	take	VERB
ap-2241	66	11	8	8	NUM
ap-2241	66	12	vol	vol	NOUN
ap-2241	66	13	.	.	PUNCT
ap-2241	67	1	55	55	NUM
ap-2241	67	2	no	no	NOUN
ap-2241	67	3	.	.	PROPN
ap-2241	68	1	1/2015	1/2015	NUM
ap-2241	68	2	monte	monte	PROPN
ap-2241	68	3	-	-	PUNCT
ap-2241	68	4	carlo	carlo	PROPN
ap-2241	68	5	re	re	NOUN
ap-2241	68	6	-	-	NOUN
ap-2241	68	7	deposition	deposition	ADJ
ap-2241	68	8	model	model	NOUN
ap-2241	68	9	figure	figure	NOUN
ap-2241	68	10	1	1	NUM
ap-2241	68	11	.	.	PUNCT
ap-2241	69	1	distribution	distribution	NOUN
ap-2241	69	2	of	of	ADP
ap-2241	69	3	mean	mean	ADJ
ap-2241	69	4	ion	ion	NOUN
ap-2241	69	5	energy	energy	NOUN
ap-2241	69	6	(	(	PUNCT
ap-2241	69	7	a	a	NOUN
ap-2241	69	8	)	)	PUNCT
ap-2241	69	9	,	,	PUNCT
ap-2241	69	10	current	current	ADJ
ap-2241	69	11	density	density	NOUN
ap-2241	69	12	(	(	PUNCT
ap-2241	69	13	b	b	NOUN
ap-2241	69	14	)	)	PUNCT
ap-2241	69	15	,	,	PUNCT
ap-2241	69	16	xe2	xe2	PROPN
ap-2241	70	1	+	+	X
ap-2241	70	2	faction	faction	NOUN
ap-2241	70	3	(	(	PUNCT
ap-2241	70	4	c	c	NOUN
ap-2241	70	5	)	)	PUNCT
ap-2241	70	6	and	and	CCONJ
ap-2241	70	7	the	the	DET
ap-2241	70	8	resulting	result	VERB
ap-2241	70	9	emitted	emitted	ADJ
ap-2241	70	10	flux	flux	NOUN
ap-2241	70	11	(	(	PUNCT
ap-2241	70	12	d	d	NOUN
ap-2241	70	13	)	)	PUNCT
ap-2241	70	14	similar	similar	ADJ
ap-2241	70	15	to	to	ADP
ap-2241	70	16	spt-100	spt-100	PROPN
ap-2241	70	17	.	.	PUNCT
ap-2241	71	1	arbitrarily	arbitrarily	ADV
ap-2241	71	2	.	.	PUNCT
ap-2241	72	1	all	all	PRON
ap-2241	72	2	used	use	VERB
ap-2241	72	3	source	source	NOUN
ap-2241	72	4	distributions	distribution	NOUN
ap-2241	72	5	used	use	VERB
ap-2241	72	6	here	here	ADV
ap-2241	72	7	are	be	AUX
ap-2241	72	8	shown	show	VERB
ap-2241	72	9	in	in	ADP
ap-2241	72	10	fig	fig	NOUN
ap-2241	72	11	.	.	PUNCT
ap-2241	73	1	1(a)–(c	1(a)–(c	NUM
ap-2241	73	2	)	)	PUNCT
ap-2241	73	3	,	,	PUNCT
ap-2241	73	4	sampled	sample	VERB
ap-2241	73	5	as	as	ADP
ap-2241	73	6	a	a	DET
ap-2241	73	7	point	point	NOUN
ap-2241	73	8	source	source	NOUN
ap-2241	73	9	at	at	ADP
ap-2241	73	10	the	the	DET
ap-2241	73	11	thruster	thruster	NOUN
ap-2241	73	12	exit	exit	NOUN
ap-2241	73	13	,	,	PUNCT
ap-2241	73	14	within	within	ADP
ap-2241	73	15	angular	angular	ADJ
ap-2241	73	16	steps	step	NOUN
ap-2241	73	17	of	of	ADP
ap-2241	73	18	∆θ	∆θ	PROPN
ap-2241	73	19	=	=	PUNCT
ap-2241	73	20	5	5	NUM
ap-2241	73	21	°	°	NUM
ap-2241	73	22	.	.	PUNCT
ap-2241	74	1	the	the	DET
ap-2241	74	2	resulting	result	VERB
ap-2241	74	3	emitted	emitted	ADJ
ap-2241	74	4	flux	flux	NOUN
ap-2241	74	5	γ(θ	γ(θ	PROPN
ap-2241	74	6	)	)	PUNCT
ap-2241	74	7	=	=	SYM
ap-2241	74	8	j(θ	j(θ	PROPN
ap-2241	74	9	)	)	PUNCT
ap-2241	74	10	e	e	X
ap-2241	74	11	·	·	PUNCT
ap-2241	74	12	(	(	PUNCT
ap-2241	74	13	1	1	NUM
ap-2241	74	14	+	+	NUM
ap-2241	74	15	f	f	PROPN
ap-2241	74	16	em(θ	em(θ	NOUN
ap-2241	74	17	)	)	PUNCT
ap-2241	74	18	)	)	PUNCT
ap-2241	74	19	is	be	AUX
ap-2241	74	20	shown	show	VERB
ap-2241	74	21	in	in	ADP
ap-2241	74	22	fig	fig	NOUN
ap-2241	74	23	.	.	PUNCT
ap-2241	75	1	1(d	1(d	NUM
ap-2241	75	2	)	)	PUNCT
ap-2241	75	3	,	,	PUNCT
ap-2241	75	4	where	where	SCONJ
ap-2241	75	5	j(θ	j(θ	PROPN
ap-2241	75	6	)	)	PUNCT
ap-2241	75	7	is	be	AUX
ap-2241	75	8	the	the	DET
ap-2241	75	9	current	current	ADJ
ap-2241	75	10	density	density	NOUN
ap-2241	75	11	,	,	PUNCT
ap-2241	75	12	e	e	PROPN
ap-2241	75	13	is	be	AUX
ap-2241	75	14	the	the	DET
ap-2241	75	15	elementary	elementary	ADJ
ap-2241	75	16	charge	charge	NOUN
ap-2241	75	17	and	and	CCONJ
ap-2241	75	18	f	f	PROPN
ap-2241	75	19	em(θ	em(θ	NOUN
ap-2241	75	20	)	)	PUNCT
ap-2241	75	21	is	be	AUX
ap-2241	75	22	the	the	DET
ap-2241	75	23	emitted	emitted	ADJ
ap-2241	75	24	xe2	xe2	PROPN
ap-2241	75	25	+	+	CCONJ
ap-2241	75	26	fraction	fraction	NOUN
ap-2241	75	27	.	.	PUNCT
ap-2241	76	1	equal	equal	ADJ
ap-2241	76	2	distribution	distribution	NOUN
ap-2241	76	3	of	of	ADP
ap-2241	76	4	the	the	DET
ap-2241	76	5	poloidal	poloidal	ADJ
ap-2241	76	6	angle	angle	NOUN
ap-2241	76	7	is	be	AUX
ap-2241	76	8	used	use	VERB
ap-2241	76	9	.	.	PUNCT
ap-2241	77	1	this	this	DET
ap-2241	77	2	distribution	distribution	NOUN
ap-2241	77	3	represents	represent	VERB
ap-2241	77	4	an	an	DET
ap-2241	77	5	emitted	emitted	ADJ
ap-2241	77	6	beam	beam	NOUN
ap-2241	77	7	of	of	ADP
ap-2241	77	8	xenon	xenon	NOUN
ap-2241	77	9	ions	ion	NOUN
ap-2241	77	10	with	with	ADP
ap-2241	77	11	a	a	DET
ap-2241	77	12	mean	mean	ADJ
ap-2241	77	13	emission	emission	NOUN
ap-2241	77	14	angle	angle	NOUN
ap-2241	77	15	of	of	ADP
ap-2241	77	16	θem	θem	NOUN
ap-2241	77	17	=	=	SYM
ap-2241	77	18	0	0	NUM
ap-2241	77	19	°	°	NUM
ap-2241	77	20	.	.	PUNCT
ap-2241	78	1	the	the	DET
ap-2241	78	2	sputter	sputter	NOUN
ap-2241	78	3	yield	yield	NOUN
ap-2241	78	4	for	for	ADP
ap-2241	78	5	the	the	DET
ap-2241	78	6	impinging	impinging	NOUN
ap-2241	78	7	ions	ion	NOUN
ap-2241	78	8	on	on	ADP
ap-2241	78	9	the	the	DET
ap-2241	78	10	vessel	vessel	NOUN
ap-2241	78	11	walls	wall	NOUN
ap-2241	78	12	is	be	AUX
ap-2241	78	13	taken	take	VERB
ap-2241	78	14	from	from	ADP
ap-2241	78	15	sdtrimsp	sdtrimsp	NOUN
ap-2241	78	16	[	[	X
ap-2241	78	17	10	10	NUM
ap-2241	78	18	]	]	PUNCT
ap-2241	78	19	simulations	simulation	NOUN
ap-2241	78	20	.	.	PUNCT
ap-2241	79	1	while	while	SCONJ
ap-2241	79	2	the	the	DET
ap-2241	79	3	thruster	thruster	NOUN
ap-2241	79	4	is	be	AUX
ap-2241	79	5	operating	operate	VERB
ap-2241	79	6	,	,	PUNCT
ap-2241	79	7	ions	ion	NOUN
ap-2241	79	8	with	with	ADP
ap-2241	79	9	energies	energy	NOUN
ap-2241	79	10	larger	large	ADJ
ap-2241	79	11	than	than	ADP
ap-2241	79	12	the	the	DET
ap-2241	79	13	sputter	sputter	NOUN
ap-2241	79	14	threshold	threshold	NOUN
ap-2241	79	15	form	form	VERB
ap-2241	79	16	a	a	DET
ap-2241	79	17	micro	micro	ADJ
ap-2241	79	18	roughness	roughness	NOUN
ap-2241	79	19	on	on	ADP
ap-2241	79	20	the	the	DET
ap-2241	79	21	thruster	thruster	NOUN
ap-2241	79	22	surfaces	surface	NOUN
ap-2241	79	23	.	.	PUNCT
ap-2241	80	1	due	due	ADP
ap-2241	80	2	to	to	ADP
ap-2241	80	3	shadowing	shadow	VERB
ap-2241	80	4	,	,	PUNCT
ap-2241	80	5	this	this	DET
ap-2241	80	6	micro	micro	NOUN
ap-2241	80	7	-	-	NOUN
ap-2241	80	8	roughness	roughness	NOUN
ap-2241	80	9	modifies	modify	VERB
ap-2241	80	10	the	the	DET
ap-2241	80	11	real	real	ADJ
ap-2241	80	12	angle	angle	NOUN
ap-2241	80	13	of	of	ADP
ap-2241	80	14	incidence	incidence	NOUN
ap-2241	80	15	,	,	PUNCT
ap-2241	80	16	effectively	effectively	ADV
ap-2241	80	17	reducing	reduce	VERB
ap-2241	80	18	its	its	PRON
ap-2241	80	19	range	range	NOUN
ap-2241	80	20	to	to	ADP
ap-2241	80	21	values	value	NOUN
ap-2241	80	22	between	between	ADP
ap-2241	80	23	20	20	NUM
ap-2241	80	24	°	°	NUM
ap-2241	80	25	and	and	CCONJ
ap-2241	80	26	50	50	NUM
ap-2241	80	27	°	°	NOUN
ap-2241	80	28	.	.	PUNCT
ap-2241	81	1	for	for	ADP
ap-2241	81	2	this	this	DET
ap-2241	81	3	angular	angular	ADJ
ap-2241	81	4	range	range	NOUN
ap-2241	81	5	,	,	PUNCT
ap-2241	81	6	the	the	DET
ap-2241	81	7	sputter	sputter	NOUN
ap-2241	81	8	yields	yield	NOUN
ap-2241	81	9	vary	vary	VERB
ap-2241	81	10	only	only	ADV
ap-2241	81	11	slightly	slightly	ADV
ap-2241	81	12	with	with	ADP
ap-2241	81	13	angle	angle	NOUN
ap-2241	81	14	.	.	PUNCT
ap-2241	82	1	we	we	PRON
ap-2241	82	2	therefore	therefore	ADV
ap-2241	82	3	assume	assume	VERB
ap-2241	82	4	that	that	SCONJ
ap-2241	82	5	the	the	DET
ap-2241	82	6	sputter	sputter	NOUN
ap-2241	82	7	yields	yield	NOUN
ap-2241	82	8	depend	depend	VERB
ap-2241	82	9	only	only	ADV
ap-2241	82	10	on	on	ADP
ap-2241	82	11	the	the	DET
ap-2241	82	12	energy	energy	NOUN
ap-2241	82	13	of	of	ADP
ap-2241	82	14	the	the	DET
ap-2241	82	15	impinging	impinging	NOUN
ap-2241	82	16	ions	ion	NOUN
ap-2241	82	17	.	.	PUNCT
ap-2241	83	1	it	it	PRON
ap-2241	83	2	is	be	AUX
ap-2241	83	3	also	also	ADV
ap-2241	83	4	assumed	assume	VERB
ap-2241	83	5	that	that	SCONJ
ap-2241	83	6	the	the	DET
ap-2241	83	7	sputtered	sputtered	ADJ
ap-2241	83	8	particles	particle	NOUN
ap-2241	83	9	obey	obey	VERB
ap-2241	83	10	a	a	DET
ap-2241	83	11	cosine	cosine	NOUN
ap-2241	83	12	law	law	NOUN
ap-2241	84	1	[	[	X
ap-2241	84	2	11	11	NUM
ap-2241	84	3	]	]	PUNCT
ap-2241	84	4	for	for	ADP
ap-2241	84	5	their	their	PRON
ap-2241	84	6	angular	angular	ADJ
ap-2241	84	7	distribution	distribution	NOUN
ap-2241	84	8	.	.	PUNCT
ap-2241	85	1	due	due	ADP
ap-2241	85	2	to	to	ADP
ap-2241	85	3	their	their	PRON
ap-2241	85	4	low	low	ADJ
ap-2241	85	5	energies	energy	NOUN
ap-2241	85	6	,	,	PUNCT
ap-2241	85	7	the	the	DET
ap-2241	85	8	sputtered	sputter	VERB
ap-2241	85	9	particles	particle	NOUN
ap-2241	85	10	are	be	AUX
ap-2241	85	11	assumed	assume	VERB
ap-2241	85	12	to	to	PART
ap-2241	85	13	have	have	VERB
ap-2241	85	14	a	a	DET
ap-2241	85	15	sticking	stick	VERB
ap-2241	85	16	coefficient	coefficient	NOUN
ap-2241	85	17	of	of	ADP
ap-2241	85	18	1	1	NUM
ap-2241	85	19	.	.	PUNCT
ap-2241	86	1	therefore	therefore	ADV
ap-2241	86	2	,	,	PUNCT
ap-2241	86	3	only	only	ADV
ap-2241	86	4	particles	particle	NOUN
ap-2241	86	5	with	with	ADP
ap-2241	86	6	direction	direction	NOUN
ap-2241	86	7	towards	towards	ADP
ap-2241	86	8	the	the	DET
ap-2241	86	9	thruster	thruster	NOUN
ap-2241	86	10	exit	exit	NOUN
ap-2241	86	11	are	be	AUX
ap-2241	86	12	followed	follow	VERB
ap-2241	86	13	.	.	PUNCT
ap-2241	87	1	a	a	DET
ap-2241	87	2	detailed	detailed	ADJ
ap-2241	87	3	description	description	NOUN
ap-2241	87	4	of	of	ADP
ap-2241	87	5	the	the	DET
ap-2241	87	6	monte	monte	PROPN
ap-2241	87	7	carlo	carlo	PROPN
ap-2241	87	8	model	model	NOUN
ap-2241	87	9	and	and	CCONJ
ap-2241	87	10	its	its	PRON
ap-2241	87	11	validation	validation	NOUN
ap-2241	87	12	with	with	ADP
ap-2241	87	13	analytic	analytic	ADJ
ap-2241	87	14	calculations	calculation	NOUN
ap-2241	87	15	can	can	AUX
ap-2241	87	16	be	be	AUX
ap-2241	87	17	found	find	VERB
ap-2241	87	18	in	in	ADP
ap-2241	87	19	[	[	X
ap-2241	87	20	12	12	NUM
ap-2241	87	21	]	]	PUNCT
ap-2241	87	22	.	.	PUNCT
ap-2241	88	1	in	in	ADP
ap-2241	88	2	the	the	DET
ap-2241	88	3	following	following	NOUN
ap-2241	88	4	,	,	PUNCT
ap-2241	88	5	the	the	DET
ap-2241	88	6	influence	influence	NOUN
ap-2241	88	7	of	of	ADP
ap-2241	88	8	the	the	DET
ap-2241	88	9	thruster	thruster	NOUN
ap-2241	88	10	position	position	NOUN
ap-2241	88	11	inside	inside	ADP
ap-2241	88	12	the	the	DET
ap-2241	88	13	vessel	vessel	NOUN
ap-2241	88	14	is	be	AUX
ap-2241	88	15	studied	study	VERB
ap-2241	88	16	.	.	PUNCT
ap-2241	89	1	this	this	PRON
ap-2241	89	2	is	be	AUX
ap-2241	89	3	important	important	ADJ
ap-2241	89	4	,	,	PUNCT
ap-2241	89	5	since	since	SCONJ
ap-2241	89	6	ion	ion	NOUN
ap-2241	89	7	thrusters	thruster	NOUN
ap-2241	89	8	are	be	AUX
ap-2241	89	9	qualified	qualified	ADJ
ap-2241	89	10	within	within	ADP
ap-2241	89	11	various	various	ADJ
ap-2241	89	12	testsetups	testsetup	NOUN
ap-2241	89	13	.	.	PUNCT
ap-2241	90	1	5	5	X
ap-2241	90	2	.	.	X
ap-2241	90	3	back	back	NOUN
ap-2241	90	4	-	-	PUNCT
ap-2241	90	5	flux	flux	NOUN
ap-2241	90	6	for	for	ADP
ap-2241	90	7	two	two	NUM
ap-2241	90	8	different	different	ADJ
ap-2241	90	9	test	test	NOUN
ap-2241	90	10	-	-	PUNCT
ap-2241	90	11	setups	setup	NOUN
ap-2241	90	12	measurements	measurement	NOUN
ap-2241	90	13	of	of	ADP
ap-2241	90	14	plume	plume	NOUN
ap-2241	90	15	parameters	parameter	NOUN
ap-2241	90	16	are	be	AUX
ap-2241	90	17	taken	take	VERB
ap-2241	90	18	in	in	ADP
ap-2241	90	19	two	two	NUM
ap-2241	90	20	different	different	ADJ
ap-2241	90	21	test	test	NOUN
ap-2241	90	22	-	-	PUNCT
ap-2241	90	23	setups	setup	NOUN
ap-2241	90	24	:	:	PUNCT
ap-2241	90	25	a	a	DET
ap-2241	90	26	’	'	PUNCT
ap-2241	90	27	performance	performance	NOUN
ap-2241	90	28	test	test	NOUN
ap-2241	90	29	’	'	PUNCT
ap-2241	90	30	,	,	PUNCT
ap-2241	90	31	where	where	SCONJ
ap-2241	90	32	a	a	DET
ap-2241	90	33	single	single	ADJ
ap-2241	90	34	thruster	thruster	NOUN
ap-2241	90	35	is	be	AUX
ap-2241	90	36	placed	place	VERB
ap-2241	90	37	in	in	ADP
ap-2241	90	38	the	the	DET
ap-2241	90	39	center	center	NOUN
ap-2241	90	40	of	of	ADP
ap-2241	90	41	the	the	DET
ap-2241	90	42	circular	circular	ADJ
ap-2241	90	43	cross	cross	NOUN
ap-2241	90	44	-	-	NOUN
ap-2241	90	45	section	section	NOUN
ap-2241	90	46	of	of	ADP
ap-2241	90	47	the	the	DET
ap-2241	90	48	vesse	vesse	NOUN
ap-2241	90	49	,	,	PUNCT
ap-2241	90	50	l	l	NOUN
ap-2241	90	51	and	and	CCONJ
ap-2241	90	52	an	an	DET
ap-2241	90	53	’	'	PUNCT
ap-2241	90	54	end	end	NOUN
ap-2241	90	55	-	-	PUNCT
ap-2241	90	56	to	to	ADP
ap-2241	90	57	-	-	PUNCT
ap-2241	90	58	end	end	NOUN
ap-2241	90	59	test	test	NOUN
ap-2241	90	60	’	'	PUNCT
ap-2241	90	61	,	,	PUNCT
ap-2241	90	62	where	where	SCONJ
ap-2241	90	63	four	four	NUM
ap-2241	90	64	thrusters	thruster	NOUN
ap-2241	90	65	are	be	AUX
ap-2241	90	66	assembled	assemble	VERB
ap-2241	90	67	as	as	ADP
ap-2241	90	68	a	a	DET
ap-2241	90	69	cluster	cluster	NOUN
ap-2241	90	70	.	.	PUNCT
ap-2241	91	1	performance	performance	NOUN
ap-2241	91	2	tests	test	NOUN
ap-2241	91	3	are	be	AUX
ap-2241	91	4	typically	typically	ADV
ap-2241	91	5	carried	carry	VERB
ap-2241	91	6	out	out	ADP
ap-2241	91	7	to	to	PART
ap-2241	91	8	test	test	VERB
ap-2241	91	9	and	and	CCONJ
ap-2241	91	10	qualifying	qualify	VERB
ap-2241	91	11	single	single	ADJ
ap-2241	91	12	thrusters	thruster	NOUN
ap-2241	91	13	,	,	PUNCT
ap-2241	91	14	while	while	SCONJ
ap-2241	91	15	end	end	NOUN
ap-2241	91	16	-	-	PUNCT
ap-2241	91	17	to	to	ADP
ap-2241	91	18	-	-	PUNCT
ap-2241	91	19	end	end	NOUN
ap-2241	91	20	tests	test	NOUN
ap-2241	91	21	give	give	VERB
ap-2241	91	22	the	the	DET
ap-2241	91	23	characteristics	characteristic	NOUN
ap-2241	91	24	of	of	ADP
ap-2241	91	25	a	a	DET
ap-2241	91	26	whole	whole	ADJ
ap-2241	91	27	cluster	cluster	NOUN
ap-2241	91	28	of	of	ADP
ap-2241	91	29	thrusters	thruster	NOUN
ap-2241	91	30	,	,	PUNCT
ap-2241	91	31	as	as	SCONJ
ap-2241	91	32	it	it	PRON
ap-2241	91	33	is	be	AUX
ap-2241	91	34	applied	apply	VERB
ap-2241	91	35	on	on	ADP
ap-2241	91	36	satellites	satellite	NOUN
ap-2241	91	37	where	where	SCONJ
ap-2241	91	38	only	only	ADV
ap-2241	91	39	one	one	NUM
ap-2241	91	40	of	of	ADP
ap-2241	91	41	the	the	DET
ap-2241	91	42	thrusters	thruster	NOUN
ap-2241	91	43	is	be	AUX
ap-2241	91	44	operating	operate	VERB
ap-2241	91	45	.	.	PUNCT
ap-2241	92	1	the	the	DET
ap-2241	92	2	following	follow	VERB
ap-2241	92	3	comparison	comparison	NOUN
ap-2241	92	4	of	of	ADP
ap-2241	92	5	the	the	DET
ap-2241	92	6	two	two	NUM
ap-2241	92	7	test	test	NOUN
ap-2241	92	8	setups	setup	NOUN
ap-2241	92	9	shows	show	VERB
ap-2241	92	10	strong	strong	ADJ
ap-2241	92	11	dependency	dependency	NOUN
ap-2241	92	12	of	of	ADP
ap-2241	92	13	the	the	DET
ap-2241	92	14	back	back	NOUN
ap-2241	92	15	-	-	PUNCT
ap-2241	92	16	flux	flux	NOUN
ap-2241	92	17	on	on	ADP
ap-2241	92	18	this	this	DET
ap-2241	92	19	thruster	thruster	NOUN
ap-2241	92	20	position	position	NOUN
ap-2241	92	21	.	.	PUNCT
ap-2241	93	1	for	for	ADP
ap-2241	93	2	the	the	DET
ap-2241	93	3	performance	performance	NOUN
ap-2241	93	4	test	test	NOUN
ap-2241	93	5	,	,	PUNCT
ap-2241	93	6	the	the	DET
ap-2241	93	7	ion	ion	NOUN
ap-2241	93	8	thruster	thruster	NOUN
ap-2241	93	9	is	be	AUX
ap-2241	93	10	placed	place	VERB
ap-2241	93	11	co	co	ADJ
ap-2241	93	12	-	-	NOUN
ap-2241	93	13	axially	axially	ADV
ap-2241	93	14	in	in	ADP
ap-2241	93	15	the	the	DET
ap-2241	93	16	vessel	vessel	NOUN
ap-2241	93	17	.	.	PUNCT
ap-2241	94	1	in	in	ADP
ap-2241	94	2	the	the	DET
ap-2241	94	3	following	following	NOUN
ap-2241	94	4	,	,	PUNCT
ap-2241	94	5	the	the	DET
ap-2241	94	6	lvtf-1	lvtf-1	PROPN
ap-2241	94	7	vessel	vessel	NOUN
ap-2241	94	8	at	at	ADP
ap-2241	94	9	aerospazio	aerospazio	PROPN
ap-2241	94	10	[	[	X
ap-2241	94	11	13	13	NUM
ap-2241	94	12	]	]	PUNCT
ap-2241	94	13	in	in	ADP
ap-2241	94	14	siena	siena	PROPN
ap-2241	94	15	,	,	PUNCT
ap-2241	94	16	italy	italy	PROPN
ap-2241	94	17	was	be	AUX
ap-2241	94	18	taken	take	VERB
ap-2241	94	19	as	as	ADP
ap-2241	94	20	a	a	DET
ap-2241	94	21	reference	reference	NOUN
ap-2241	94	22	.	.	PUNCT
ap-2241	95	1	it	it	PRON
ap-2241	95	2	has	have	VERB
ap-2241	95	3	a	a	DET
ap-2241	95	4	cylinder	cylinder	NOUN
ap-2241	95	5	length	length	NOUN
ap-2241	95	6	of	of	ADP
ap-2241	95	7	zc	zc	NOUN
ap-2241	95	8	=	=	PROPN
ap-2241	95	9	7.7	7.7	NUM
ap-2241	95	10	m	m	NOUN
ap-2241	95	11	and	and	CCONJ
ap-2241	95	12	a	a	DET
ap-2241	95	13	radius	radius	NOUN
ap-2241	95	14	of	of	ADP
ap-2241	95	15	rc	rc	PROPN
ap-2241	95	16	=	=	PROPN
ap-2241	95	17	1.9	1.9	NUM
ap-2241	95	18	m.	m.	NOUN
ap-2241	95	19	the	the	DET
ap-2241	95	20	spherical	spherical	ADJ
ap-2241	95	21	cap	cap	NOUN
ap-2241	95	22	at	at	ADP
ap-2241	95	23	the	the	DET
ap-2241	95	24	end	end	NOUN
ap-2241	95	25	has	have	VERB
ap-2241	95	26	a	a	DET
ap-2241	95	27	radius	radius	NOUN
ap-2241	95	28	of	of	ADP
ap-2241	95	29	rsp	rsp	NOUN
ap-2241	95	30	=	=	NOUN
ap-2241	95	31	2.7	2.7	NUM
ap-2241	95	32	m.	m.	NOUN
ap-2241	95	33	for	for	ADP
ap-2241	95	34	simplicity	simplicity	NOUN
ap-2241	95	35	,	,	PUNCT
ap-2241	95	36	the	the	DET
ap-2241	95	37	ion	ion	NOUN
ap-2241	95	38	thruster	thruster	NOUN
ap-2241	95	39	is	be	AUX
ap-2241	95	40	approximated	approximate	VERB
ap-2241	95	41	by	by	ADP
ap-2241	95	42	a	a	DET
ap-2241	95	43	cylinder	cylinder	NOUN
ap-2241	95	44	with	with	ADP
ap-2241	95	45	a	a	DET
ap-2241	95	46	length	length	NOUN
ap-2241	95	47	of	of	ADP
ap-2241	95	48	l	l	NOUN
ap-2241	95	49	=	=	SYM
ap-2241	95	50	9.0	9.0	NUM
ap-2241	95	51	cm	cm	NOUN
ap-2241	95	52	and	and	CCONJ
ap-2241	95	53	a	a	DET
ap-2241	95	54	diameter	diameter	NOUN
ap-2241	95	55	of	of	ADP
ap-2241	95	56	d	d	PROPN
ap-2241	95	57	=	=	PROPN
ap-2241	95	58	9.0	9.0	NUM
ap-2241	95	59	cm	cm	NOUN
ap-2241	95	60	.	.	PUNCT
ap-2241	96	1	in	in	ADP
ap-2241	96	2	most	most	ADJ
ap-2241	96	3	test	test	NOUN
ap-2241	96	4	chambers	chamber	NOUN
ap-2241	96	5	,	,	PUNCT
ap-2241	96	6	graphite	graphite	NOUN
ap-2241	96	7	-	-	PUNCT
ap-2241	96	8	coated	coat	VERB
ap-2241	96	9	walls	wall	NOUN
ap-2241	96	10	are	be	AUX
ap-2241	96	11	used	use	VERB
ap-2241	96	12	in	in	ADP
ap-2241	96	13	order	order	NOUN
ap-2241	96	14	to	to	PART
ap-2241	96	15	reduce	reduce	VERB
ap-2241	96	16	the	the	DET
ap-2241	96	17	back	back	NOUN
ap-2241	96	18	-	-	PUNCT
ap-2241	96	19	fluxes	flux	NOUN
ap-2241	96	20	of	of	ADP
ap-2241	96	21	sputtered	sputtered	ADJ
ap-2241	96	22	par9	par9	PROPN
ap-2241	96	23	j.	j.	PROPN
ap-2241	96	24	duras	duras	PROPN
ap-2241	96	25	,	,	PUNCT
ap-2241	96	26	o.	o.	PROPN
ap-2241	96	27	kalentev	kalentev	PROPN
ap-2241	96	28	,	,	PUNCT
ap-2241	96	29	r.	r.	PROPN
ap-2241	96	30	schneider	schneider	PROPN
ap-2241	96	31	et	et	PROPN
ap-2241	96	32	al	al	PROPN
ap-2241	96	33	.	.	PROPN
ap-2241	96	34	acta	acta	PROPN
ap-2241	96	35	polytechnica	polytechnica	PROPN
ap-2241	96	36	figure	figure	NOUN
ap-2241	96	37	3	3	NUM
ap-2241	96	38	.	.	PUNCT
ap-2241	96	39	sketch	sketch	NOUN
ap-2241	96	40	of	of	ADP
ap-2241	96	41	a	a	DET
ap-2241	96	42	thruster	thruster	NOUN
ap-2241	96	43	cluster	cluster	NOUN
ap-2241	96	44	assembled	assemble	VERB
ap-2241	96	45	in	in	ADP
ap-2241	96	46	the	the	DET
ap-2241	96	47	lvtf-1	lvtf-1	PROPN
ap-2241	96	48	vessel	vessel	NOUN
ap-2241	96	49	within	within	ADP
ap-2241	96	50	an	an	DET
ap-2241	96	51	end	end	NOUN
ap-2241	96	52	-	-	PUNCT
ap-2241	96	53	to	to	ADP
ap-2241	96	54	-	-	PUNCT
ap-2241	96	55	end	end	NOUN
ap-2241	96	56	test	test	NOUN
ap-2241	96	57	set	set	NOUN
ap-2241	96	58	-	-	PUNCT
ap-2241	96	59	up	up	NOUN
ap-2241	96	60	.	.	PUNCT
ap-2241	97	1	‘	'	PUNCT
ap-2241	97	2	0	0	NUM
ap-2241	97	3	’	'	PUNCT
ap-2241	97	4	to	to	AUX
ap-2241	97	5	‘	'	PUNCT
ap-2241	97	6	3	3	NUM
ap-2241	97	7	’	'	PUNCT
ap-2241	97	8	indicate	indicate	VERB
ap-2241	97	9	the	the	DET
ap-2241	97	10	different	different	ADJ
ap-2241	97	11	thrusters	thruster	NOUN
ap-2241	97	12	.	.	PUNCT
ap-2241	98	1	figure	figure	NOUN
ap-2241	98	2	2	2	NUM
ap-2241	98	3	.	.	PUNCT
ap-2241	98	4	calculated	calculate	VERB
ap-2241	98	5	back	back	NOUN
ap-2241	98	6	-	-	PUNCT
ap-2241	98	7	flux	flux	NOUN
ap-2241	98	8	towards	towards	ADP
ap-2241	98	9	the	the	DET
ap-2241	98	10	thruster	thruster	NOUN
ap-2241	98	11	exit	exit	NOUN
ap-2241	98	12	in	in	ADP
ap-2241	98	13	total	total	ADJ
ap-2241	98	14	(	(	PUNCT
ap-2241	98	15	total	total	ADJ
ap-2241	98	16	flux	flux	NOUN
ap-2241	98	17	fraction	fraction	NOUN
ap-2241	98	18	of	of	ADP
ap-2241	98	19	1.97	1.97	NUM
ap-2241	98	20	·	·	SYM
ap-2241	98	21	10−5	10−5	NUM
ap-2241	98	22	)	)	PUNCT
ap-2241	98	23	.	.	PUNCT
ap-2241	99	1	ticles	ticle	NOUN
ap-2241	99	2	,	,	PUNCT
ap-2241	99	3	since	since	SCONJ
ap-2241	99	4	graphite	graphite	NOUN
ap-2241	99	5	has	have	VERB
ap-2241	99	6	a	a	DET
ap-2241	99	7	lower	low	ADJ
ap-2241	99	8	sputter	sputter	NOUN
ap-2241	99	9	yield	yield	NOUN
ap-2241	99	10	than	than	ADP
ap-2241	99	11	aluminum	aluminum	NOUN
ap-2241	99	12	.	.	PUNCT
ap-2241	100	1	however	however	ADV
ap-2241	100	2	,	,	PUNCT
ap-2241	100	3	in	in	ADP
ap-2241	100	4	the	the	DET
ap-2241	100	5	case	case	NOUN
ap-2241	100	6	of	of	ADP
ap-2241	100	7	carbon	carbon	NOUN
ap-2241	100	8	the	the	DET
ap-2241	100	9	release	release	NOUN
ap-2241	100	10	of	of	ADP
ap-2241	100	11	hydrocarbons	hydrocarbon	NOUN
ap-2241	100	12	is	be	AUX
ap-2241	100	13	a	a	DET
ap-2241	100	14	major	major	ADJ
ap-2241	100	15	problem	problem	NOUN
ap-2241	100	16	linked	link	VERB
ap-2241	100	17	to	to	ADP
ap-2241	100	18	the	the	DET
ap-2241	100	19	sponge	sponge	NOUN
ap-2241	100	20	-	-	PUNCT
ap-2241	100	21	like	like	ADJ
ap-2241	100	22	characteristics	characteristic	NOUN
ap-2241	100	23	of	of	ADP
ap-2241	100	24	carbon	carbon	NOUN
ap-2241	100	25	with	with	ADP
ap-2241	100	26	respect	respect	NOUN
ap-2241	100	27	to	to	ADP
ap-2241	100	28	its	its	PRON
ap-2241	100	29	interaction	interaction	NOUN
ap-2241	100	30	with	with	ADP
ap-2241	100	31	hydrogen	hydrogen	NOUN
ap-2241	100	32	.	.	PUNCT
ap-2241	101	1	the	the	DET
ap-2241	101	2	sputtered	sputter	VERB
ap-2241	101	3	hydrocarbons	hydrocarbon	NOUN
ap-2241	101	4	produce	produce	VERB
ap-2241	101	5	a	a	DET
ap-2241	101	6	co	co	ADJ
ap-2241	101	7	-	-	ADJ
ap-2241	101	8	deposited	deposited	ADJ
ap-2241	101	9	layer	layer	NOUN
ap-2241	101	10	inside	inside	ADP
ap-2241	101	11	the	the	DET
ap-2241	101	12	thruster	thruster	NOUN
ap-2241	101	13	channel	channel	NOUN
ap-2241	101	14	,	,	PUNCT
ap-2241	101	15	which	which	PRON
ap-2241	101	16	can	can	AUX
ap-2241	101	17	become	become	VERB
ap-2241	101	18	conductive	conductive	ADJ
ap-2241	101	19	and	and	CCONJ
ap-2241	101	20	can	can	AUX
ap-2241	101	21	therefore	therefore	ADV
ap-2241	101	22	change	change	VERB
ap-2241	101	23	the	the	DET
ap-2241	101	24	potentials	potential	NOUN
ap-2241	101	25	and	and	CCONJ
ap-2241	101	26	can	can	AUX
ap-2241	101	27	produce	produce	VERB
ap-2241	101	28	subsequent	subsequent	ADJ
ap-2241	101	29	problems	problem	NOUN
ap-2241	101	30	.	.	PUNCT
ap-2241	102	1	when	when	SCONJ
ap-2241	102	2	carbon	carbon	NOUN
ap-2241	102	3	is	be	AUX
ap-2241	102	4	replaced	replace	VERB
ap-2241	102	5	by	by	ADP
ap-2241	102	6	metal	metal	NOUN
ap-2241	102	7	walls	wall	NOUN
ap-2241	102	8	,	,	PUNCT
ap-2241	102	9	the	the	DET
ap-2241	102	10	rates	rate	NOUN
ap-2241	102	11	of	of	ADP
ap-2241	102	12	physical	physical	ADJ
ap-2241	102	13	sputtering	sputtering	NOUN
ap-2241	102	14	are	be	AUX
ap-2241	102	15	larger	large	ADJ
ap-2241	102	16	,	,	PUNCT
ap-2241	102	17	but	but	CCONJ
ap-2241	102	18	the	the	DET
ap-2241	102	19	evaporation	evaporation	NOUN
ap-2241	102	20	in	in	ADP
ap-2241	102	21	the	the	DET
ap-2241	102	22	hot	hot	ADJ
ap-2241	102	23	parts	part	NOUN
ap-2241	102	24	of	of	ADP
ap-2241	102	25	the	the	DET
ap-2241	102	26	channel	channel	NOUN
ap-2241	102	27	will	will	AUX
ap-2241	102	28	prevent	prevent	VERB
ap-2241	102	29	deposition	deposition	NOUN
ap-2241	102	30	inside	inside	ADP
ap-2241	102	31	the	the	DET
ap-2241	102	32	thruster	thruster	NOUN
ap-2241	102	33	[	[	X
ap-2241	102	34	2	2	NUM
ap-2241	102	35	]	]	PUNCT
ap-2241	102	36	.	.	PUNCT
ap-2241	103	1	aluminum	aluminum	NOUN
ap-2241	103	2	walls	wall	NOUN
ap-2241	103	3	are	be	AUX
ap-2241	103	4	therefore	therefore	ADV
ap-2241	103	5	studied	study	VERB
ap-2241	103	6	with	with	ADP
ap-2241	103	7	the	the	DET
ap-2241	103	8	montecarlo	montecarlo	PROPN
ap-2241	103	9	model	model	NOUN
ap-2241	103	10	.	.	PUNCT
ap-2241	104	1	within	within	ADP
ap-2241	104	2	this	this	DET
ap-2241	104	3	model	model	NOUN
ap-2241	104	4	,	,	PUNCT
ap-2241	104	5	the	the	DET
ap-2241	104	6	back	back	NOUN
ap-2241	104	7	-	-	PUNCT
ap-2241	104	8	flux	flux	NOUN
ap-2241	104	9	is	be	AUX
ap-2241	104	10	collected	collect	VERB
ap-2241	104	11	on	on	ADP
ap-2241	104	12	a	a	DET
ap-2241	104	13	circle	circle	NOUN
ap-2241	104	14	,	,	PUNCT
ap-2241	104	15	which	which	PRON
ap-2241	104	16	represents	represent	VERB
ap-2241	104	17	the	the	DET
ap-2241	104	18	thruster	thruster	NOUN
ap-2241	104	19	exit	exit	NOUN
ap-2241	104	20	.	.	PUNCT
ap-2241	105	1	the	the	DET
ap-2241	105	2	calculated	calculated	ADJ
ap-2241	105	3	back	back	ADJ
ap-2241	105	4	-	-	PUNCT
ap-2241	105	5	flux	flux	NOUN
ap-2241	105	6	fraction	fraction	NOUN
ap-2241	105	7	towards	towards	ADP
ap-2241	105	8	the	the	DET
ap-2241	105	9	source	source	NOUN
ap-2241	105	10	is	be	AUX
ap-2241	105	11	shown	show	VERB
ap-2241	105	12	by	by	ADP
ap-2241	105	13	a	a	DET
ap-2241	105	14	blue	blue	ADJ
ap-2241	105	15	line	line	NOUN
ap-2241	105	16	in	in	ADP
ap-2241	105	17	fig	fig	NOUN
ap-2241	105	18	.	.	PUNCT
ap-2241	106	1	2	2	X
ap-2241	106	2	.	.	X
ap-2241	106	3	it	it	PRON
ap-2241	106	4	is	be	AUX
ap-2241	106	5	given	give	VERB
ap-2241	106	6	by	by	ADP
ap-2241	106	7	the	the	DET
ap-2241	106	8	number	number	NOUN
ap-2241	106	9	of	of	ADP
ap-2241	106	10	particles	particle	NOUN
ap-2241	106	11	hitting	hit	VERB
ap-2241	106	12	the	the	DET
ap-2241	106	13	thruster	thruster	NOUN
ap-2241	106	14	exit	exit	NOUN
ap-2241	106	15	in	in	ADP
ap-2241	106	16	a	a	DET
ap-2241	106	17	certain	certain	ADJ
ap-2241	106	18	angular	angular	ADJ
ap-2241	106	19	range	range	NOUN
ap-2241	106	20	[	[	X
ap-2241	106	21	θ	θ	X
ap-2241	106	22	;	;	PUNCT
ap-2241	106	23	θ	θ	PROPN
ap-2241	106	24	+	+	PROPN
ap-2241	106	25	∆θ	∆θ	PROPN
ap-2241	106	26	]	]	PUNCT
ap-2241	106	27	,	,	PUNCT
ap-2241	106	28	with	with	ADP
ap-2241	106	29	∆θ	∆θ	PROPN
ap-2241	106	30	=	=	SYM
ap-2241	106	31	1	1	NUM
ap-2241	106	32	°	°	NUM
ap-2241	106	33	,	,	PUNCT
ap-2241	106	34	divided	divide	VERB
ap-2241	106	35	by	by	ADP
ap-2241	106	36	the	the	DET
ap-2241	106	37	total	total	ADJ
ap-2241	106	38	number	number	NOUN
ap-2241	106	39	of	of	ADP
ap-2241	106	40	source	source	NOUN
ap-2241	106	41	particles	particle	NOUN
ap-2241	106	42	.	.	PUNCT
ap-2241	107	1	for	for	ADP
ap-2241	107	2	the	the	DET
ap-2241	107	3	chosen	choose	VERB
ap-2241	107	4	parameters	parameter	NOUN
ap-2241	107	5	of	of	ADP
ap-2241	107	6	the	the	DET
ap-2241	107	7	vessel	vessel	NOUN
ap-2241	107	8	,	,	PUNCT
ap-2241	107	9	the	the	DET
ap-2241	107	10	back	back	NOUN
ap-2241	107	11	-	-	PUNCT
ap-2241	107	12	flux	flux	NOUN
ap-2241	107	13	for	for	ADP
ap-2241	107	14	θ	θ	PROPN
ap-2241	107	15	=	=	PUNCT
ap-2241	108	1	[	[	X
ap-2241	108	2	0	0	NUM
ap-2241	108	3	;	;	PUNCT
ap-2241	108	4	14	14	NUM
ap-2241	108	5	°	°	NOUN
ap-2241	108	6	]	]	PUNCT
ap-2241	108	7	originates	originate	NOUN
ap-2241	108	8	from	from	ADP
ap-2241	108	9	the	the	DET
ap-2241	108	10	spherical	spherical	ADJ
ap-2241	108	11	cap	cap	NOUN
ap-2241	108	12	,	,	PUNCT
ap-2241	108	13	while	while	SCONJ
ap-2241	108	14	for	for	ADP
ap-2241	108	15	θ	θ	PROPN
ap-2241	108	16	=	=	PUNCT
ap-2241	109	1	[	[	X
ap-2241	109	2	14	14	NUM
ap-2241	109	3	°	°	NUM
ap-2241	109	4	;	;	PUNCT
ap-2241	109	5	90	90	NUM
ap-2241	109	6	°	°	NUM
ap-2241	109	7	]	]	X
ap-2241	109	8	it	it	PRON
ap-2241	109	9	comes	come	VERB
ap-2241	109	10	from	from	ADP
ap-2241	109	11	the	the	DET
ap-2241	109	12	cylindrical	cylindrical	ADJ
ap-2241	109	13	walls	wall	NOUN
ap-2241	109	14	of	of	ADP
ap-2241	109	15	the	the	DET
ap-2241	109	16	vessel	vessel	NOUN
ap-2241	109	17	.	.	PUNCT
ap-2241	110	1	the	the	DET
ap-2241	110	2	flux	flux	PROPN
ap-2241	110	3	fraction	fraction	NOUN
ap-2241	110	4	shows	show	VERB
ap-2241	110	5	a	a	DET
ap-2241	110	6	pronounced	pronounced	ADJ
ap-2241	110	7	peak	peak	NOUN
ap-2241	110	8	at	at	ADP
ap-2241	110	9	around	around	ADP
ap-2241	110	10	10	10	NUM
ap-2241	110	11	°	°	NUM
ap-2241	110	12	and	and	CCONJ
ap-2241	110	13	a	a	DET
ap-2241	110	14	broader	broad	ADJ
ap-2241	110	15	peak	peak	NOUN
ap-2241	110	16	at	at	ADP
ap-2241	110	17	about	about	ADV
ap-2241	110	18	45	45	NUM
ap-2241	110	19	°	°	NOUN
ap-2241	110	20	.	.	PUNCT
ap-2241	111	1	figure	figure	NOUN
ap-2241	111	2	4	4	NUM
ap-2241	111	3	.	.	PUNCT
ap-2241	112	1	calculated	calculate	VERB
ap-2241	112	2	back	back	NOUN
ap-2241	112	3	-	-	PUNCT
ap-2241	112	4	flux	flux	NOUN
ap-2241	112	5	to	to	ADP
ap-2241	112	6	four	four	NUM
ap-2241	112	7	thruster	thruster	NOUN
ap-2241	112	8	channels	channel	NOUN
ap-2241	112	9	with	with	ADP
ap-2241	112	10	a	a	DET
ap-2241	112	11	total	total	ADJ
ap-2241	112	12	flux	flux	NOUN
ap-2241	112	13	fraction	fraction	NOUN
ap-2241	112	14	of	of	ADP
ap-2241	112	15	f	f	PROPN
ap-2241	112	16	=	=	SYM
ap-2241	112	17	8.0	8.0	NUM
ap-2241	112	18	·	·	SYM
ap-2241	112	19	10−5	10−5	NUM
ap-2241	112	20	.	.	PUNCT
ap-2241	113	1	thruster	thruster	PROPN
ap-2241	113	2	∫	∫	PROPN
ap-2241	113	3	f(θ	f(θ	PROPN
ap-2241	113	4	)	)	PUNCT
ap-2241	113	5	dθ	dθ	NOUN
ap-2241	113	6	‘	'	PUNCT
ap-2241	113	7	0	0	NUM
ap-2241	113	8	’	'	PUNCT
ap-2241	113	9	2.11	2.11	NUM
ap-2241	113	10	·	·	PUNCT
ap-2241	113	11	10−5	10−5	NUM
ap-2241	113	12	‘	'	PUNCT
ap-2241	113	13	1	1	NUM
ap-2241	113	14	’	’	SYM
ap-2241	113	15	2.00	2.00	NUM
ap-2241	113	16	·	·	PUNCT
ap-2241	113	17	10−5	10−5	NUM
ap-2241	113	18	‘	'	PUNCT
ap-2241	113	19	2	2	NUM
ap-2241	113	20	’	'	PUNCT
ap-2241	113	21	1.91	1.91	NUM
ap-2241	113	22	·	·	PUNCT
ap-2241	113	23	10−5	10−5	NUM
ap-2241	113	24	‘	'	PUNCT
ap-2241	113	25	3	3	NUM
ap-2241	113	26	’	’	SYM
ap-2241	113	27	2.00	2.00	NUM
ap-2241	113	28	·	·	SYM
ap-2241	113	29	10−5	10−5	NUM
ap-2241	113	30	table	table	NOUN
ap-2241	113	31	1	1	NUM
ap-2241	113	32	.	.	PUNCT
ap-2241	113	33	calculated	calculate	VERB
ap-2241	113	34	back	back	NOUN
ap-2241	113	35	-	-	PUNCT
ap-2241	113	36	flux	flux	NOUN
ap-2241	113	37	to	to	ADP
ap-2241	113	38	four	four	NUM
ap-2241	113	39	thruster	thruster	NOUN
ap-2241	113	40	channels	channel	NOUN
ap-2241	113	41	with	with	ADP
ap-2241	113	42	a	a	DET
ap-2241	113	43	total	total	ADJ
ap-2241	113	44	flux	flux	NOUN
ap-2241	113	45	fraction	fraction	NOUN
ap-2241	113	46	of	of	ADP
ap-2241	113	47	f	f	PROPN
ap-2241	113	48	=	=	SYM
ap-2241	113	49	8.0	8.0	NUM
ap-2241	113	50	·	·	SYM
ap-2241	113	51	10−5	10−5	NUM
ap-2241	113	52	.	.	PUNCT
ap-2241	114	1	these	these	DET
ap-2241	114	2	structures	structure	NOUN
ap-2241	114	3	are	be	AUX
ap-2241	114	4	determined	determine	VERB
ap-2241	114	5	by	by	ADP
ap-2241	114	6	the	the	DET
ap-2241	114	7	combination	combination	NOUN
ap-2241	114	8	of	of	ADP
ap-2241	114	9	the	the	DET
ap-2241	114	10	mean	mean	ADJ
ap-2241	114	11	ion	ion	NOUN
ap-2241	114	12	energy	energy	NOUN
ap-2241	114	13	distribution	distribution	NOUN
ap-2241	114	14	of	of	ADP
ap-2241	114	15	the	the	DET
ap-2241	114	16	emitted	emitted	ADJ
ap-2241	114	17	xenon	xenon	NOUN
ap-2241	114	18	ions	ion	NOUN
ap-2241	114	19	,	,	PUNCT
ap-2241	114	20	the	the	DET
ap-2241	114	21	sputter	sputter	NOUN
ap-2241	114	22	yield	yield	NOUN
ap-2241	114	23	and	and	CCONJ
ap-2241	114	24	the	the	DET
ap-2241	114	25	cosine	cosine	NOUN
ap-2241	114	26	distribution	distribution	NOUN
ap-2241	114	27	of	of	ADP
ap-2241	114	28	the	the	DET
ap-2241	114	29	sputtered	sputter	VERB
ap-2241	114	30	particles	particle	NOUN
ap-2241	114	31	.	.	PUNCT
ap-2241	115	1	the	the	DET
ap-2241	115	2	first	first	ADJ
ap-2241	115	3	peak	peak	NOUN
ap-2241	115	4	at	at	ADP
ap-2241	115	5	10	10	NUM
ap-2241	115	6	°	°	NOUN
ap-2241	115	7	is	be	AUX
ap-2241	115	8	dominated	dominate	VERB
ap-2241	115	9	by	by	ADP
ap-2241	115	10	the	the	DET
ap-2241	115	11	maximum	maximum	NOUN
ap-2241	115	12	of	of	ADP
ap-2241	115	13	the	the	DET
ap-2241	115	14	mean	mean	ADJ
ap-2241	115	15	ion	ion	NOUN
ap-2241	115	16	energy	energy	NOUN
ap-2241	115	17	which	which	PRON
ap-2241	115	18	takes	take	VERB
ap-2241	115	19	place	place	NOUN
ap-2241	115	20	at	at	ADP
ap-2241	115	21	the	the	DET
ap-2241	115	22	same	same	ADJ
ap-2241	115	23	emitting	emit	VERB
ap-2241	115	24	angle	angle	NOUN
ap-2241	115	25	.	.	PUNCT
ap-2241	116	1	the	the	DET
ap-2241	116	2	second	second	ADJ
ap-2241	116	3	peak	peak	NOUN
ap-2241	116	4	is	be	AUX
ap-2241	116	5	given	give	VERB
ap-2241	116	6	by	by	ADP
ap-2241	116	7	the	the	DET
ap-2241	116	8	combination	combination	NOUN
ap-2241	116	9	of	of	ADP
ap-2241	116	10	decreasing	decrease	VERB
ap-2241	116	11	mean	mean	ADJ
ap-2241	116	12	ion	ion	NOUN
ap-2241	116	13	energy	energy	NOUN
ap-2241	116	14	,	,	PUNCT
ap-2241	116	15	with	with	ADP
ap-2241	116	16	increasing	increase	VERB
ap-2241	116	17	θ	θ	PROPN
ap-2241	116	18	and	and	CCONJ
ap-2241	116	19	increasing	increase	VERB
ap-2241	116	20	back	back	NOUN
ap-2241	116	21	-	-	PUNCT
ap-2241	116	22	flow	flow	NOUN
ap-2241	116	23	as	as	SCONJ
ap-2241	116	24	given	give	VERB
ap-2241	116	25	by	by	ADP
ap-2241	116	26	the	the	DET
ap-2241	116	27	cosine	cosine	NOUN
ap-2241	116	28	law	law	NOUN
ap-2241	116	29	.	.	PUNCT
ap-2241	117	1	for	for	ADP
ap-2241	117	2	zero	zero	NUM
ap-2241	117	3	degree	degree	NOUN
ap-2241	117	4	emission	emission	NOUN
ap-2241	117	5	angle	angle	NOUN
ap-2241	117	6	less	less	ADJ
ap-2241	117	7	flux	flux	NOUN
ap-2241	117	8	is	be	AUX
ap-2241	117	9	seen	see	VERB
ap-2241	117	10	,	,	PUNCT
ap-2241	117	11	due	due	ADP
ap-2241	117	12	to	to	ADP
ap-2241	117	13	the	the	DET
ap-2241	117	14	small	small	ADJ
ap-2241	117	15	number	number	NOUN
ap-2241	117	16	of	of	ADP
ap-2241	117	17	emitted	emitted	ADJ
ap-2241	117	18	particles	particle	NOUN
ap-2241	117	19	in	in	ADP
ap-2241	117	20	this	this	DET
ap-2241	117	21	angular	angular	ADJ
ap-2241	117	22	region	region	NOUN
ap-2241	117	23	,	,	PUNCT
ap-2241	117	24	because	because	SCONJ
ap-2241	117	25	of	of	ADP
ap-2241	117	26	its	its	PRON
ap-2241	117	27	small	small	ADJ
ap-2241	117	28	circular	circular	ADJ
ap-2241	117	29	area	area	NOUN
ap-2241	117	30	for	for	ADP
ap-2241	117	31	θ	θ	PROPN
ap-2241	117	32	∈	∈	PROPN
ap-2241	118	1	[	[	X
ap-2241	118	2	0	0	NUM
ap-2241	118	3	;	;	PUNCT
ap-2241	118	4	1	1	NUM
ap-2241	118	5	°	°	NUM
ap-2241	118	6	]	]	PUNCT
ap-2241	118	7	.	.	PUNCT
ap-2241	119	1	for	for	ADP
ap-2241	119	2	the	the	DET
ap-2241	119	3	’	'	PUNCT
ap-2241	119	4	end	end	NOUN
ap-2241	119	5	-	-	PUNCT
ap-2241	119	6	to	to	ADP
ap-2241	119	7	-	-	PUNCT
ap-2241	119	8	end	end	NOUN
ap-2241	119	9	’	'	PUNCT
ap-2241	119	10	simulations	simulation	NOUN
ap-2241	119	11	the	the	DET
ap-2241	119	12	same	same	ADJ
ap-2241	119	13	vacuum	vacuum	NOUN
ap-2241	119	14	chamber	chamber	NOUN
ap-2241	119	15	was	be	AUX
ap-2241	119	16	taken	take	VERB
ap-2241	119	17	as	as	ADP
ap-2241	119	18	a	a	DET
ap-2241	119	19	reference	reference	NOUN
ap-2241	119	20	.	.	PUNCT
ap-2241	120	1	a	a	DET
ap-2241	120	2	sketch	sketch	NOUN
ap-2241	120	3	of	of	ADP
ap-2241	120	4	the	the	DET
ap-2241	120	5	implemented	implement	VERB
ap-2241	120	6	geometry	geometry	NOUN
ap-2241	120	7	is	be	AUX
ap-2241	120	8	shown	show	VERB
ap-2241	120	9	in	in	ADP
ap-2241	120	10	fig	fig	NOUN
ap-2241	120	11	.	.	PUNCT
ap-2241	121	1	3	3	X
ap-2241	121	2	.	.	X
ap-2241	121	3	in	in	ADP
ap-2241	121	4	order	order	NOUN
ap-2241	121	5	to	to	PART
ap-2241	121	6	reduce	reduce	VERB
ap-2241	121	7	the	the	DET
ap-2241	121	8	artifacts	artifact	NOUN
ap-2241	121	9	further	far	ADV
ap-2241	121	10	,	,	PUNCT
ap-2241	121	11	all	all	DET
ap-2241	121	12	thrusters	thruster	NOUN
ap-2241	121	13	are	be	AUX
ap-2241	121	14	pointing	point	VERB
ap-2241	121	15	10	10	NUM
ap-2241	121	16	vol	vol	NOUN
ap-2241	121	17	.	.	PUNCT
ap-2241	122	1	55	55	NUM
ap-2241	122	2	no	no	NOUN
ap-2241	122	3	.	.	PROPN
ap-2241	123	1	1/2015	1/2015	NUM
ap-2241	123	2	monte	monte	PROPN
ap-2241	123	3	-	-	PUNCT
ap-2241	123	4	carlo	carlo	PROPN
ap-2241	123	5	re	re	NOUN
ap-2241	123	6	-	-	NOUN
ap-2241	123	7	deposition	deposition	ADJ
ap-2241	123	8	model	model	NOUN
ap-2241	123	9	figure	figure	NOUN
ap-2241	123	10	5	5	NUM
ap-2241	123	11	.	.	PUNCT
ap-2241	123	12	re	re	VERB
ap-2241	123	13	-	-	VERB
ap-2241	123	14	deposited	deposit	VERB
ap-2241	123	15	flux	flux	NOUN
ap-2241	123	16	in	in	ADP
ap-2241	123	17	s−1m−2	s−1m−2	NOUN
ap-2241	123	18	inside	inside	ADP
ap-2241	123	19	the	the	DET
ap-2241	123	20	four	four	NUM
ap-2241	123	21	9	9	NUM
ap-2241	123	22	cm	cm	NOUN
ap-2241	123	23	long	long	ADJ
ap-2241	123	24	thruster	thruster	NOUN
ap-2241	123	25	channels	channel	NOUN
ap-2241	123	26	within	within	ADP
ap-2241	123	27	an	an	DET
ap-2241	123	28	end	end	NOUN
ap-2241	123	29	-	-	PUNCT
ap-2241	123	30	to	to	ADP
ap-2241	123	31	-	-	PUNCT
ap-2241	123	32	end	end	NOUN
ap-2241	123	33	test	test	NOUN
ap-2241	123	34	setup	setup	NOUN
ap-2241	123	35	at	at	ADP
ap-2241	123	36	the	the	DET
ap-2241	123	37	lvtf-1	lvtf-1	PROPN
ap-2241	123	38	vessel	vessel	NOUN
ap-2241	123	39	.	.	PUNCT
ap-2241	124	1	total	total	ADJ
ap-2241	124	2	re	re	VERB
ap-2241	124	3	-	-	ADJ
ap-2241	124	4	deposited	deposit	VERB
ap-2241	124	5	flux	flux	NOUN
ap-2241	124	6	γ	γ	X
ap-2241	124	7	=	=	SYM
ap-2241	124	8	4.3	4.3	NUM
ap-2241	124	9	·	·	PUNCT
ap-2241	124	10	10	10	NUM
ap-2241	124	11	+	+	NOUN
ap-2241	124	12	12	12	NUM
ap-2241	124	13	m−2s−1	m−2s−1	NOUN
ap-2241	124	14	figure	figure	NOUN
ap-2241	124	15	6	6	NUM
ap-2241	124	16	.	.	PUNCT
ap-2241	124	17	re	re	VERB
ap-2241	124	18	-	-	VERB
ap-2241	124	19	deposited	deposit	VERB
ap-2241	124	20	flux	flux	NOUN
ap-2241	124	21	along	along	ADP
ap-2241	124	22	the	the	DET
ap-2241	124	23	four	four	NUM
ap-2241	124	24	thruster	thruster	NOUN
ap-2241	124	25	channels	channel	NOUN
ap-2241	124	26	.	.	PUNCT
ap-2241	125	1	in	in	ADP
ap-2241	125	2	the	the	DET
ap-2241	125	3	same	same	ADJ
ap-2241	125	4	direction	direction	NOUN
ap-2241	125	5	.	.	PUNCT
ap-2241	126	1	thruster	thruster	NOUN
ap-2241	126	2	‘	'	PUNCT
ap-2241	126	3	0	0	NUM
ap-2241	126	4	’	'	PUNCT
ap-2241	126	5	was	be	AUX
ap-2241	126	6	chosen	choose	VERB
ap-2241	126	7	as	as	ADP
ap-2241	126	8	the	the	DET
ap-2241	126	9	operating	operating	NOUN
ap-2241	126	10	thruster	thruster	NOUN
ap-2241	126	11	.	.	PUNCT
ap-2241	127	1	the	the	DET
ap-2241	127	2	computed	computed	ADJ
ap-2241	127	3	back	back	ADJ
ap-2241	127	4	-	-	PUNCT
ap-2241	127	5	flux	flux	NOUN
ap-2241	127	6	fractions	fraction	NOUN
ap-2241	127	7	towards	towards	ADP
ap-2241	127	8	the	the	DET
ap-2241	127	9	thruster	thruster	NOUN
ap-2241	127	10	exit	exit	NOUN
ap-2241	127	11	planes	plane	NOUN
ap-2241	127	12	of	of	ADP
ap-2241	127	13	all	all	DET
ap-2241	127	14	four	four	NUM
ap-2241	127	15	thrusters	thruster	NOUN
ap-2241	127	16	are	be	AUX
ap-2241	127	17	shown	show	VERB
ap-2241	127	18	in	in	ADP
ap-2241	127	19	fig	fig	NOUN
ap-2241	127	20	.	.	PUNCT
ap-2241	128	1	4	4	X
ap-2241	128	2	.	.	X
ap-2241	128	3	the	the	DET
ap-2241	128	4	integral	integral	ADJ
ap-2241	128	5	flux	flux	NOUN
ap-2241	128	6	fraction	fraction	NOUN
ap-2241	128	7	for	for	ADP
ap-2241	128	8	each	each	DET
ap-2241	128	9	thruster	thruster	NOUN
ap-2241	128	10	is	be	AUX
ap-2241	128	11	given	give	VERB
ap-2241	128	12	in	in	ADP
ap-2241	128	13	table	table	NOUN
ap-2241	128	14	1	1	NUM
ap-2241	128	15	.	.	PUNCT
ap-2241	129	1	most	most	ADJ
ap-2241	129	2	of	of	ADP
ap-2241	129	3	the	the	DET
ap-2241	129	4	back	back	NOUN
ap-2241	129	5	-	-	PUNCT
ap-2241	129	6	flux	flux	NOUN
ap-2241	129	7	is	be	AUX
ap-2241	129	8	measured	measure	VERB
ap-2241	129	9	for	for	ADP
ap-2241	129	10	thruster	thruster	NOUN
ap-2241	129	11	‘	'	PUNCT
ap-2241	129	12	0	0	NUM
ap-2241	129	13	’	'	PUNCT
ap-2241	129	14	,	,	PUNCT
ap-2241	129	15	since	since	SCONJ
ap-2241	129	16	it	it	PRON
ap-2241	129	17	is	be	AUX
ap-2241	129	18	the	the	DET
ap-2241	129	19	emitting	emit	VERB
ap-2241	129	20	source	source	NOUN
ap-2241	129	21	.	.	PUNCT
ap-2241	130	1	one	one	PRON
ap-2241	130	2	can	can	AUX
ap-2241	130	3	see	see	VERB
ap-2241	130	4	that	that	SCONJ
ap-2241	130	5	the	the	DET
ap-2241	130	6	integral	integral	ADJ
ap-2241	130	7	deposited	deposit	VERB
ap-2241	130	8	flux	flux	NOUN
ap-2241	130	9	decreases	decrease	VERB
ap-2241	130	10	with	with	ADP
ap-2241	130	11	distance	distance	NOUN
ap-2241	130	12	to	to	ADP
ap-2241	130	13	the	the	DET
ap-2241	130	14	source	source	NOUN
ap-2241	130	15	.	.	PUNCT
ap-2241	131	1	therefore	therefore	ADV
ap-2241	131	2	,	,	PUNCT
ap-2241	131	3	equal	equal	ADJ
ap-2241	131	4	flux	flux	NOUN
ap-2241	131	5	distribution	distribution	NOUN
ap-2241	131	6	for	for	ADP
ap-2241	131	7	symmetrically	symmetrically	ADV
ap-2241	131	8	placed	place	VERB
ap-2241	131	9	thrusters	thruster	NOUN
ap-2241	131	10	‘	'	PUNCT
ap-2241	131	11	1	1	NUM
ap-2241	131	12	’	'	PUNCT
ap-2241	131	13	and	and	CCONJ
ap-2241	131	14	‘	'	PUNCT
ap-2241	131	15	3	3	NUM
ap-2241	131	16	’	'	PUNCT
ap-2241	131	17	is	be	AUX
ap-2241	131	18	reasonable	reasonable	ADJ
ap-2241	131	19	.	.	PUNCT
ap-2241	132	1	since	since	SCONJ
ap-2241	132	2	the	the	DET
ap-2241	132	3	emitting	emit	VERB
ap-2241	132	4	source	source	NOUN
ap-2241	132	5	is	be	AUX
ap-2241	132	6	not	not	PART
ap-2241	132	7	placed	place	VERB
ap-2241	132	8	co	co	NOUN
ap-2241	132	9	-	-	NOUN
ap-2241	132	10	axially	axially	ADV
ap-2241	132	11	in	in	ADP
ap-2241	132	12	the	the	DET
ap-2241	132	13	vessel	vessel	NOUN
ap-2241	132	14	one	one	NOUN
ap-2241	132	15	can	can	AUX
ap-2241	132	16	not	not	PART
ap-2241	132	17	deduce	deduce	VERB
ap-2241	132	18	,	,	PUNCT
ap-2241	132	19	where	where	SCONJ
ap-2241	132	20	the	the	DET
ap-2241	132	21	sputtered	sputtered	ADJ
ap-2241	132	22	particles	particle	NOUN
ap-2241	132	23	originate	originate	VERB
ap-2241	132	24	from	from	ADP
ap-2241	132	25	.	.	PUNCT
ap-2241	133	1	in	in	ADP
ap-2241	133	2	addition	addition	NOUN
ap-2241	133	3	,	,	PUNCT
ap-2241	133	4	the	the	DET
ap-2241	133	5	back	back	NOUN
ap-2241	133	6	-	-	PUNCT
ap-2241	133	7	flux	flux	NOUN
ap-2241	133	8	is	be	AUX
ap-2241	133	9	no	no	ADV
ap-2241	133	10	longer	long	ADV
ap-2241	133	11	equally	equally	ADV
ap-2241	133	12	distributed	distribute	VERB
ap-2241	133	13	in	in	ADP
ap-2241	133	14	poloidal	poloidal	ADJ
ap-2241	133	15	direction	direction	NOUN
ap-2241	133	16	.	.	PUNCT
ap-2241	134	1	in	in	ADP
ap-2241	134	2	fig	fig	NOUN
ap-2241	134	3	.	.	PUNCT
ap-2241	135	1	5	5	NUM
ap-2241	135	2	,	,	PUNCT
ap-2241	135	3	the	the	DET
ap-2241	135	4	back	back	NOUN
ap-2241	135	5	-	-	PUNCT
ap-2241	135	6	flux	flux	NOUN
ap-2241	135	7	on	on	ADP
ap-2241	135	8	the	the	DET
ap-2241	135	9	simplified	simplified	ADJ
ap-2241	135	10	inner	inner	ADJ
ap-2241	135	11	thruster	thruster	NOUN
ap-2241	135	12	channel	channel	NOUN
ap-2241	135	13	wall	wall	NOUN
ap-2241	135	14	is	be	AUX
ap-2241	135	15	given	give	VERB
ap-2241	135	16	with	with	ADP
ap-2241	135	17	respect	respect	NOUN
ap-2241	135	18	to	to	ADP
ap-2241	135	19	the	the	DET
ap-2241	135	20	depth	depth	NOUN
ap-2241	135	21	z′	z′	NUM
ap-2241	135	22	and	and	CCONJ
ap-2241	135	23	the	the	DET
ap-2241	135	24	poloidal	poloidal	ADJ
ap-2241	135	25	angle	angle	PROPN
ap-2241	135	26	ϕ	ϕ	PROPN
ap-2241	135	27	of	of	ADP
ap-2241	135	28	the	the	DET
ap-2241	135	29	thruster	thruster	NOUN
ap-2241	135	30	.	.	PUNCT
ap-2241	136	1	here	here	ADV
ap-2241	136	2	the	the	DET
ap-2241	136	3	z′-axis	z′-axis	NUM
ap-2241	136	4	is	be	AUX
ap-2241	136	5	the	the	DET
ap-2241	136	6	symmetry	symmetry	NOUN
ap-2241	136	7	axis	axis	NOUN
ap-2241	136	8	of	of	ADP
ap-2241	136	9	the	the	DET
ap-2241	136	10	cylinder	cylinder	NOUN
ap-2241	136	11	,	,	PUNCT
ap-2241	136	12	where	where	SCONJ
ap-2241	136	13	z′	z′	NUM
ap-2241	136	14	=	=	SYM
ap-2241	136	15	0	0	NUM
ap-2241	136	16	cm	cm	NOUN
ap-2241	136	17	is	be	AUX
ap-2241	136	18	at	at	ADP
ap-2241	136	19	the	the	DET
ap-2241	136	20	anode	anode	NOUN
ap-2241	136	21	and	and	CCONJ
ap-2241	136	22	z′	z′	NUM
ap-2241	136	23	=	=	SYM
ap-2241	136	24	9	9	NUM
ap-2241	136	25	cm	cm	NOUN
ap-2241	136	26	is	be	AUX
ap-2241	136	27	at	at	ADP
ap-2241	136	28	the	the	DET
ap-2241	136	29	thruster	thruster	NOUN
ap-2241	136	30	exit	exit	NOUN
ap-2241	136	31	.	.	PUNCT
ap-2241	137	1	as	as	SCONJ
ap-2241	137	2	expected	expect	VERB
ap-2241	137	3	,	,	PUNCT
ap-2241	137	4	the	the	DET
ap-2241	137	5	flux	flux	NOUN
ap-2241	137	6	is	be	AUX
ap-2241	137	7	slightly	slightly	ADV
ap-2241	137	8	higher	high	ADJ
ap-2241	137	9	in	in	ADP
ap-2241	137	10	the	the	DET
ap-2241	137	11	thruster	thruster	NOUN
ap-2241	137	12	exit	exit	NOUN
ap-2241	137	13	region	region	NOUN
ap-2241	137	14	and	and	CCONJ
ap-2241	137	15	decreases	decrease	NOUN
ap-2241	137	16	towards	towards	ADP
ap-2241	137	17	the	the	DET
ap-2241	137	18	thruster	thruster	NOUN
ap-2241	137	19	bottom	bottom	NOUN
ap-2241	137	20	,	,	PUNCT
ap-2241	137	21	see	see	VERB
ap-2241	137	22	fig	fig	NOUN
ap-2241	137	23	.	.	PUNCT
ap-2241	138	1	6	6	NUM
ap-2241	138	2	.	.	X
ap-2241	138	3	it	it	PRON
ap-2241	138	4	shows	show	VERB
ap-2241	138	5	the	the	DET
ap-2241	138	6	measured	measure	VERB
ap-2241	138	7	flux	flux	NOUN
ap-2241	138	8	summed	sum	VERB
ap-2241	138	9	over	over	ADP
ap-2241	138	10	the	the	DET
ap-2241	138	11	poloidal	poloidal	ADJ
ap-2241	138	12	angle	angle	NOUN
ap-2241	138	13	.	.	PUNCT
ap-2241	139	1	in	in	ADP
ap-2241	139	2	poloidal	poloidal	ADJ
ap-2241	139	3	difigure	difigure	NOUN
ap-2241	139	4	7	7	NUM
ap-2241	139	5	.	.	PUNCT
ap-2241	139	6	calculated	calculate	VERB
ap-2241	139	7	back	back	NOUN
ap-2241	139	8	-	-	PUNCT
ap-2241	139	9	flux	flux	NOUN
ap-2241	139	10	to	to	ADP
ap-2241	139	11	four	four	NUM
ap-2241	139	12	thruster	thruster	NOUN
ap-2241	139	13	channels	channel	NOUN
ap-2241	139	14	with	with	ADP
ap-2241	139	15	total	total	ADJ
ap-2241	139	16	flux	flux	NOUN
ap-2241	139	17	fraction	fraction	NOUN
ap-2241	139	18	of	of	ADP
ap-2241	139	19	f	f	PROPN
ap-2241	139	20	=	=	SYM
ap-2241	139	21	5.7	5.7	NUM
ap-2241	139	22	·	·	SYM
ap-2241	139	23	10−4	10−4	NUM
ap-2241	139	24	at	at	ADP
ap-2241	139	25	the	the	DET
ap-2241	139	26	ulan	ulan	PROPN
ap-2241	139	27	vessel	vessel	NOUN
ap-2241	139	28	.	.	PUNCT
ap-2241	140	1	thruster	thruster	PROPN
ap-2241	140	2	∫	∫	PROPN
ap-2241	140	3	f(θ	f(θ	PROPN
ap-2241	140	4	)	)	PUNCT
ap-2241	140	5	dθ	dθ	NOUN
ap-2241	140	6	‘	'	PUNCT
ap-2241	140	7	0	0	NUM
ap-2241	140	8	’	'	PUNCT
ap-2241	140	9	1.61	1.61	NUM
ap-2241	140	10	·	·	PUNCT
ap-2241	140	11	10−4	10−4	NUM
ap-2241	140	12	‘	'	PUNCT
ap-2241	140	13	1	1	NUM
ap-2241	140	14	’	’	SYM
ap-2241	140	15	1.42	1.42	NUM
ap-2241	140	16	·	·	PUNCT
ap-2241	140	17	10−4	10−4	NUM
ap-2241	140	18	‘	'	PUNCT
ap-2241	140	19	2	2	NUM
ap-2241	140	20	’	'	PUNCT
ap-2241	140	21	1.26	1.26	NUM
ap-2241	140	22	·	·	PUNCT
ap-2241	140	23	10−4	10−4	NUM
ap-2241	140	24	‘	'	PUNCT
ap-2241	140	25	3	3	NUM
ap-2241	140	26	’	'	PUNCT
ap-2241	140	27	1.42	1.42	NUM
ap-2241	140	28	·	·	PUNCT
ap-2241	140	29	10−4	10−4	NUM
ap-2241	140	30	table	table	NOUN
ap-2241	140	31	2	2	NUM
ap-2241	140	32	.	.	PUNCT
ap-2241	140	33	calculated	calculate	VERB
ap-2241	140	34	back	back	NOUN
ap-2241	140	35	-	-	PUNCT
ap-2241	140	36	flux	flux	NOUN
ap-2241	140	37	to	to	ADP
ap-2241	140	38	four	four	NUM
ap-2241	140	39	thruster	thruster	NOUN
ap-2241	140	40	channels	channel	NOUN
ap-2241	140	41	with	with	ADP
ap-2241	140	42	total	total	ADJ
ap-2241	140	43	flux	flux	NOUN
ap-2241	140	44	fraction	fraction	NOUN
ap-2241	140	45	of	of	ADP
ap-2241	140	46	f	f	PROPN
ap-2241	140	47	=	=	SYM
ap-2241	140	48	5.7	5.7	NUM
ap-2241	140	49	·	·	SYM
ap-2241	140	50	10−4	10−4	NUM
ap-2241	140	51	at	at	ADP
ap-2241	140	52	the	the	DET
ap-2241	140	53	ulan	ulan	PROPN
ap-2241	140	54	vessel	vessel	NOUN
ap-2241	140	55	.	.	PUNCT
ap-2241	141	1	rection	rection	NOUN
ap-2241	141	2	,	,	PUNCT
ap-2241	141	3	the	the	DET
ap-2241	141	4	distribution	distribution	NOUN
ap-2241	141	5	varies	vary	VERB
ap-2241	141	6	and	and	CCONJ
ap-2241	141	7	the	the	DET
ap-2241	141	8	angle	angle	NOUN
ap-2241	141	9	with	with	ADP
ap-2241	141	10	maximum	maximum	PROPN
ap-2241	141	11	flux	flux	PROPN
ap-2241	141	12	ϕ	ϕ	PROPN
ap-2241	142	1	=	=	X
ap-2241	142	2	max	max	PROPN
ap-2241	142	3	ϕ	ϕ	PROPN
ap-2241	142	4	∫	∫	PROPN
ap-2241	142	5	n(ϕ	n(ϕ	NOUN
ap-2241	142	6	,	,	PUNCT
ap-2241	142	7	z′)dz′	z′)dz′	NOUN
ap-2241	142	8	along	along	ADP
ap-2241	142	9	the	the	DET
ap-2241	142	10	z	z	NOUN
ap-2241	142	11	-	-	PUNCT
ap-2241	142	12	axis	axis	NOUN
ap-2241	142	13	is	be	AUX
ap-2241	142	14	given	give	VERB
ap-2241	142	15	in	in	ADP
ap-2241	142	16	each	each	DET
ap-2241	142	17	plot	plot	NOUN
ap-2241	142	18	.	.	PUNCT
ap-2241	143	1	thrusters	thruster	NOUN
ap-2241	143	2	‘	'	PUNCT
ap-2241	143	3	0	0	NUM
ap-2241	143	4	’	'	PUNCT
ap-2241	143	5	and	and	CCONJ
ap-2241	143	6	‘	'	PUNCT
ap-2241	143	7	2	2	NUM
ap-2241	143	8	’	'	PUNCT
ap-2241	143	9	show	show	NOUN
ap-2241	143	10	approximately	approximately	ADV
ap-2241	143	11	the	the	DET
ap-2241	143	12	same	same	ADJ
ap-2241	143	13	maximum	maximum	ADJ
ap-2241	143	14	angle	angle	NOUN
ap-2241	143	15	,	,	PUNCT
ap-2241	143	16	while	while	SCONJ
ap-2241	143	17	for	for	ADP
ap-2241	143	18	the	the	DET
ap-2241	143	19	others	other	NOUN
ap-2241	143	20	the	the	DET
ap-2241	143	21	angle	angle	NOUN
ap-2241	143	22	is	be	AUX
ap-2241	143	23	shifted	shift	VERB
ap-2241	143	24	by	by	ADP
ap-2241	143	25	±10	±10	NOUN
ap-2241	143	26	°	°	PROPN
ap-2241	143	27	.	.	PUNCT
ap-2241	144	1	this	this	PRON
ap-2241	144	2	can	can	AUX
ap-2241	144	3	be	be	AUX
ap-2241	144	4	explained	explain	VERB
ap-2241	144	5	by	by	ADP
ap-2241	144	6	the	the	DET
ap-2241	144	7	symmetric	symmetric	ADJ
ap-2241	144	8	thruster	thruster	NOUN
ap-2241	144	9	positions	position	NOUN
ap-2241	144	10	within	within	ADP
ap-2241	144	11	the	the	DET
ap-2241	144	12	vessel	vessel	NOUN
ap-2241	144	13	with	with	ADP
ap-2241	144	14	respect	respect	NOUN
ap-2241	144	15	to	to	ADP
ap-2241	144	16	the	the	DET
ap-2241	144	17	emitting	emit	VERB
ap-2241	144	18	source	source	NOUN
ap-2241	144	19	.	.	PUNCT
ap-2241	145	1	in	in	ADP
ap-2241	145	2	total	total	NOUN
ap-2241	145	3	,	,	PUNCT
ap-2241	145	4	the	the	DET
ap-2241	145	5	re	re	NOUN
ap-2241	145	6	-	-	NOUN
ap-2241	145	7	deposition	deposition	NOUN
ap-2241	145	8	distribution	distribution	NOUN
ap-2241	145	9	pattern	pattern	NOUN
ap-2241	145	10	is	be	AUX
ap-2241	145	11	nearly	nearly	ADV
ap-2241	145	12	the	the	DET
ap-2241	145	13	same	same	ADJ
ap-2241	145	14	for	for	ADP
ap-2241	145	15	all	all	DET
ap-2241	145	16	four	four	NUM
ap-2241	145	17	thrusters	thruster	NOUN
ap-2241	145	18	,	,	PUNCT
ap-2241	145	19	due	due	ADP
ap-2241	145	20	to	to	ADP
ap-2241	145	21	the	the	DET
ap-2241	145	22	11	11	NUM
ap-2241	145	23	j.	j.	PROPN
ap-2241	145	24	duras	duras	PROPN
ap-2241	145	25	,	,	PUNCT
ap-2241	145	26	o.	o.	PROPN
ap-2241	145	27	kalentev	kalentev	PROPN
ap-2241	145	28	,	,	PUNCT
ap-2241	145	29	r.	r.	PROPN
ap-2241	145	30	schneider	schneider	PROPN
ap-2241	145	31	et	et	PROPN
ap-2241	145	32	al	al	PROPN
ap-2241	145	33	.	.	PROPN
ap-2241	145	34	acta	acta	PROPN
ap-2241	145	35	polytechnica	polytechnica	PROPN
ap-2241	145	36	figure	figure	NOUN
ap-2241	145	37	8	8	NUM
ap-2241	145	38	.	.	PUNCT
ap-2241	146	1	re	re	VERB
ap-2241	146	2	-	-	VERB
ap-2241	146	3	deposited	deposit	VERB
ap-2241	146	4	flux	flux	NOUN
ap-2241	146	5	in	in	ADP
ap-2241	146	6	s−1m−2	s−1m−2	NOUN
ap-2241	146	7	inside	inside	ADP
ap-2241	146	8	the	the	DET
ap-2241	146	9	four	four	NUM
ap-2241	146	10	9	9	NUM
ap-2241	146	11	cm	cm	NOUN
ap-2241	146	12	long	long	ADJ
ap-2241	146	13	thruster	thruster	NOUN
ap-2241	146	14	channels	channel	NOUN
ap-2241	146	15	within	within	ADP
ap-2241	146	16	an	an	DET
ap-2241	146	17	end	end	NOUN
ap-2241	146	18	-	-	PUNCT
ap-2241	146	19	to	to	ADP
ap-2241	146	20	-	-	PUNCT
ap-2241	146	21	end	end	NOUN
ap-2241	146	22	test	test	NOUN
ap-2241	146	23	setup	setup	NOUN
ap-2241	146	24	at	at	ADP
ap-2241	146	25	the	the	DET
ap-2241	146	26	ulan	ulan	PROPN
ap-2241	146	27	vessel	vessel	NOUN
ap-2241	146	28	.	.	PUNCT
ap-2241	147	1	total	total	ADJ
ap-2241	147	2	re	re	VERB
ap-2241	147	3	-	-	ADJ
ap-2241	147	4	deposited	deposit	VERB
ap-2241	147	5	flux	flux	NOUN
ap-2241	147	6	γ	γ	X
ap-2241	147	7	=	=	SYM
ap-2241	147	8	2.4	2.4	NUM
ap-2241	147	9	·	·	SYM
ap-2241	147	10	10	10	NUM
ap-2241	147	11	+	+	SYM
ap-2241	147	12	13	13	NUM
ap-2241	147	13	m−2s−1	m−2s−1	NOUN
ap-2241	147	14	large	large	ADJ
ap-2241	147	15	vessel	vessel	NOUN
ap-2241	147	16	geometry	geometry	NOUN
ap-2241	147	17	in	in	ADP
ap-2241	147	18	comparison	comparison	NOUN
ap-2241	147	19	with	with	ADP
ap-2241	147	20	the	the	DET
ap-2241	147	21	thruster	thruster	NOUN
ap-2241	147	22	size	size	NOUN
ap-2241	147	23	,	,	PUNCT
ap-2241	147	24	and	and	CCONJ
ap-2241	147	25	the	the	DET
ap-2241	147	26	narrow	narrow	ADJ
ap-2241	147	27	beam	beam	NOUN
ap-2241	147	28	-	-	PUNCT
ap-2241	147	29	like	like	ADJ
ap-2241	147	30	emission	emission	NOUN
ap-2241	147	31	distribution	distribution	NOUN
ap-2241	147	32	.	.	PUNCT
ap-2241	148	1	for	for	ADP
ap-2241	148	2	the	the	DET
ap-2241	148	3	purposes	purpose	NOUN
ap-2241	148	4	of	of	ADP
ap-2241	148	5	comparison	comparison	NOUN
ap-2241	148	6	,	,	PUNCT
ap-2241	148	7	the	the	DET
ap-2241	148	8	same	same	ADJ
ap-2241	148	9	simulation	simulation	NOUN
ap-2241	148	10	was	be	AUX
ap-2241	148	11	carried	carry	VERB
ap-2241	148	12	out	out	ADP
ap-2241	148	13	for	for	ADP
ap-2241	148	14	a	a	DET
ap-2241	148	15	smaller	small	ADJ
ap-2241	148	16	vessel	vessel	NOUN
ap-2241	148	17	.	.	PUNCT
ap-2241	149	1	the	the	DET
ap-2241	149	2	ulan	ulan	PROPN
ap-2241	149	3	facility	facility	NOUN
ap-2241	149	4	[	[	X
ap-2241	149	5	14	14	NUM
ap-2241	149	6	]	]	PUNCT
ap-2241	149	7	in	in	ADP
ap-2241	149	8	ulm	ulm	NOUN
ap-2241	149	9	was	be	AUX
ap-2241	149	10	modeled	model	VERB
ap-2241	149	11	.	.	PUNCT
ap-2241	150	1	it	it	PRON
ap-2241	150	2	has	have	VERB
ap-2241	150	3	a	a	DET
ap-2241	150	4	cylinder	cylinder	NOUN
ap-2241	150	5	length	length	NOUN
ap-2241	150	6	of	of	ADP
ap-2241	150	7	zc	zc	X
ap-2241	150	8	=	=	SYM
ap-2241	150	9	2.9	2.9	NUM
ap-2241	150	10	m	m	NOUN
ap-2241	150	11	and	and	CCONJ
ap-2241	150	12	a	a	DET
ap-2241	150	13	radius	radius	NOUN
ap-2241	150	14	of	of	ADP
ap-2241	150	15	rc	rc	PROPN
ap-2241	150	16	=	=	PROPN
ap-2241	150	17	1.2	1.2	NUM
ap-2241	150	18	m.	m.	NOUN
ap-2241	150	19	as	as	ADP
ap-2241	150	20	in	in	ADP
ap-2241	150	21	aerospazio	aerospazio	PROPN
ap-2241	150	22	,	,	PUNCT
ap-2241	150	23	the	the	DET
ap-2241	150	24	thruster	thruster	NOUN
ap-2241	150	25	cluster	cluster	NOUN
ap-2241	150	26	is	be	AUX
ap-2241	150	27	placed	place	VERB
ap-2241	150	28	co	co	ADJ
ap-2241	150	29	-	-	NOUN
ap-2241	150	30	axially	axially	ADV
ap-2241	150	31	in	in	ADP
ap-2241	150	32	the	the	DET
ap-2241	150	33	vessel	vessel	NOUN
ap-2241	150	34	.	.	PUNCT
ap-2241	151	1	in	in	ADP
ap-2241	151	2	fig	fig	NOUN
ap-2241	151	3	.	.	PUNCT
ap-2241	152	1	7	7	NUM
ap-2241	152	2	,	,	PUNCT
ap-2241	152	3	the	the	DET
ap-2241	152	4	back	back	ADJ
ap-2241	152	5	-	-	PUNCT
ap-2241	152	6	flux	flux	NOUN
ap-2241	152	7	fraction	fraction	NOUN
ap-2241	152	8	at	at	ADP
ap-2241	152	9	the	the	DET
ap-2241	152	10	exit	exit	NOUN
ap-2241	152	11	planes	plane	NOUN
ap-2241	152	12	and	and	CCONJ
ap-2241	152	13	the	the	DET
ap-2241	152	14	integral	integral	ADJ
ap-2241	152	15	flux	flux	NOUN
ap-2241	152	16	fraction	fraction	NOUN
ap-2241	152	17	are	be	AUX
ap-2241	152	18	given	give	VERB
ap-2241	152	19	in	in	ADP
ap-2241	152	20	table	table	NOUN
ap-2241	152	21	2	2	NUM
ap-2241	152	22	.	.	PUNCT
ap-2241	153	1	the	the	DET
ap-2241	153	2	total	total	ADJ
ap-2241	153	3	back	back	ADJ
ap-2241	153	4	-	-	PUNCT
ap-2241	153	5	flux	flux	NOUN
ap-2241	153	6	fraction	fraction	NOUN
ap-2241	153	7	f	f	PROPN
ap-2241	153	8	=	=	SYM
ap-2241	153	9	5.7	5.7	NUM
ap-2241	153	10	·	·	SYM
ap-2241	153	11	10−4	10−4	NUM
ap-2241	153	12	is	be	AUX
ap-2241	153	13	about	about	ADV
ap-2241	153	14	14	14	NUM
ap-2241	153	15	times	time	NOUN
ap-2241	153	16	higher	high	ADJ
ap-2241	153	17	than	than	ADP
ap-2241	153	18	for	for	ADP
ap-2241	153	19	the	the	DET
ap-2241	153	20	larger	large	ADJ
ap-2241	153	21	aerospazio	aerospazio	PROPN
ap-2241	153	22	vessel	vessel	NOUN
ap-2241	153	23	f	f	PROPN
ap-2241	153	24	=	=	SYM
ap-2241	153	25	8.0	8.0	NUM
ap-2241	153	26	·	·	SYM
ap-2241	153	27	10−5	10−5	NUM
ap-2241	153	28	.	.	PUNCT
ap-2241	154	1	a	a	DET
ap-2241	154	2	clearer	clear	ADJ
ap-2241	154	3	distinction	distinction	NOUN
ap-2241	154	4	between	between	ADP
ap-2241	154	5	the	the	DET
ap-2241	154	6	four	four	NUM
ap-2241	154	7	thrusters	thruster	NOUN
ap-2241	154	8	and	and	CCONJ
ap-2241	154	9	a	a	DET
ap-2241	154	10	different	different	ADJ
ap-2241	154	11	back	back	ADJ
ap-2241	154	12	-	-	PUNCT
ap-2241	154	13	flux	flux	NOUN
ap-2241	154	14	pattern	pattern	NOUN
ap-2241	154	15	develop	develop	VERB
ap-2241	154	16	.	.	PUNCT
ap-2241	155	1	the	the	DET
ap-2241	155	2	maximum	maximum	ADJ
ap-2241	155	3	back	back	NOUN
ap-2241	155	4	-	-	PUNCT
ap-2241	155	5	flux	flux	NOUN
ap-2241	155	6	is	be	AUX
ap-2241	155	7	measured	measure	VERB
ap-2241	155	8	for	for	ADP
ap-2241	155	9	the	the	DET
ap-2241	155	10	emitting	emit	VERB
ap-2241	155	11	thruster	thruster	NOUN
ap-2241	155	12	‘	'	PUNCT
ap-2241	155	13	0	0	NUM
ap-2241	155	14	’	'	PUNCT
ap-2241	155	15	,	,	PUNCT
ap-2241	155	16	while	while	SCONJ
ap-2241	155	17	it	it	PRON
ap-2241	155	18	decreases	decrease	VERB
ap-2241	155	19	with	with	ADP
ap-2241	155	20	distance	distance	NOUN
ap-2241	155	21	from	from	ADP
ap-2241	155	22	the	the	DET
ap-2241	155	23	source	source	NOUN
ap-2241	155	24	,	,	PUNCT
ap-2241	155	25	as	as	SCONJ
ap-2241	155	26	can	can	AUX
ap-2241	155	27	be	be	AUX
ap-2241	155	28	seen	see	VERB
ap-2241	155	29	in	in	ADP
ap-2241	155	30	tab	tab	NOUN
ap-2241	155	31	.	.	PUNCT
ap-2241	156	1	2	2	X
ap-2241	156	2	.	.	X
ap-2241	156	3	these	these	DET
ap-2241	156	4	differences	difference	NOUN
ap-2241	156	5	can	can	AUX
ap-2241	156	6	be	be	AUX
ap-2241	156	7	explained	explain	VERB
ap-2241	156	8	by	by	ADP
ap-2241	156	9	the	the	DET
ap-2241	156	10	thruster	thruster	NOUN
ap-2241	156	11	position	position	NOUN
ap-2241	156	12	closer	close	ADJ
ap-2241	156	13	to	to	ADP
ap-2241	156	14	the	the	DET
ap-2241	156	15	cylinder	cylinder	NOUN
ap-2241	156	16	walls	wall	NOUN
ap-2241	156	17	of	of	ADP
ap-2241	156	18	the	the	DET
ap-2241	156	19	vessel	vessel	NOUN
ap-2241	156	20	.	.	PUNCT
ap-2241	157	1	the	the	DET
ap-2241	157	2	back	back	NOUN
ap-2241	157	3	-	-	PUNCT
ap-2241	157	4	flux	flux	NOUN
ap-2241	157	5	for	for	ADP
ap-2241	157	6	each	each	DET
ap-2241	157	7	channel	channel	NOUN
ap-2241	157	8	is	be	AUX
ap-2241	157	9	given	give	VERB
ap-2241	157	10	in	in	ADP
ap-2241	157	11	fig	fig	NOUN
ap-2241	157	12	.	.	PUNCT
ap-2241	158	1	8	8	NUM
ap-2241	158	2	.	.	PUNCT
ap-2241	159	1	here	here	ADV
ap-2241	159	2	,	,	PUNCT
ap-2241	159	3	too	too	ADV
ap-2241	159	4	,	,	PUNCT
ap-2241	159	5	the	the	DET
ap-2241	159	6	redeposition	redeposition	NOUN
ap-2241	159	7	decreases	decrease	VERB
ap-2241	159	8	with	with	ADP
ap-2241	159	9	channel	channel	NOUN
ap-2241	159	10	depth	depth	NOUN
ap-2241	159	11	,	,	PUNCT
ap-2241	159	12	as	as	SCONJ
ap-2241	159	13	expected	expect	VERB
ap-2241	159	14	,	,	PUNCT
ap-2241	159	15	but	but	CCONJ
ap-2241	159	16	more	more	ADV
ap-2241	159	17	pronounced	pronounced	ADJ
ap-2241	159	18	re	re	NOUN
ap-2241	159	19	-	-	NOUN
ap-2241	159	20	deposition	deposition	NOUN
ap-2241	159	21	areas	area	NOUN
ap-2241	159	22	with	with	ADP
ap-2241	159	23	parts	part	NOUN
ap-2241	159	24	of	of	ADP
ap-2241	159	25	practically	practically	ADV
ap-2241	159	26	no	no	PRON
ap-2241	159	27	re	re	NOUN
ap-2241	159	28	-	-	NOUN
ap-2241	159	29	deposition	deposition	NOUN
ap-2241	159	30	build	build	VERB
ap-2241	159	31	up	up	ADP
ap-2241	159	32	.	.	PUNCT
ap-2241	160	1	in	in	ADP
ap-2241	160	2	comparison	comparison	NOUN
ap-2241	160	3	with	with	ADP
ap-2241	160	4	the	the	DET
ap-2241	160	5	larger	large	ADJ
ap-2241	160	6	vessel	vessel	NOUN
ap-2241	160	7	,	,	PUNCT
ap-2241	160	8	the	the	DET
ap-2241	160	9	maximum	maximum	ADJ
ap-2241	160	10	peak	peak	NOUN
ap-2241	160	11	is	be	AUX
ap-2241	160	12	approximately	approximately	ADV
ap-2241	160	13	one	one	NUM
ap-2241	160	14	order	order	NOUN
ap-2241	160	15	higher	high	ADJ
ap-2241	160	16	.	.	PUNCT
ap-2241	161	1	while	while	SCONJ
ap-2241	161	2	for	for	ADP
ap-2241	161	3	thruster	thruster	NOUN
ap-2241	161	4	‘	'	PUNCT
ap-2241	161	5	0	0	NUM
ap-2241	161	6	’	'	PUNCT
ap-2241	161	7	the	the	DET
ap-2241	161	8	re	re	NOUN
ap-2241	161	9	-	-	NOUN
ap-2241	161	10	deposition	deposition	NOUN
ap-2241	161	11	is	be	AUX
ap-2241	161	12	almost	almost	ADV
ap-2241	161	13	equally	equally	ADV
ap-2241	161	14	distributed	distribute	VERB
ap-2241	161	15	within	within	ADP
ap-2241	161	16	the	the	DET
ap-2241	161	17	channel	channel	NOUN
ap-2241	161	18	,	,	PUNCT
ap-2241	161	19	a	a	DET
ap-2241	161	20	peak	peak	NOUN
ap-2241	161	21	builds	build	VERB
ap-2241	161	22	up	up	ADP
ap-2241	161	23	with	with	ADP
ap-2241	161	24	increasing	increase	VERB
ap-2241	161	25	distance	distance	NOUN
ap-2241	161	26	from	from	ADP
ap-2241	161	27	the	the	DET
ap-2241	161	28	emitting	emit	VERB
ap-2241	161	29	source	source	NOUN
ap-2241	161	30	,	,	PUNCT
ap-2241	161	31	resulting	result	VERB
ap-2241	161	32	in	in	ADP
ap-2241	161	33	the	the	DET
ap-2241	161	34	highest	high	ADJ
ap-2241	161	35	maximum	maximum	ADJ
ap-2241	161	36	flux	flux	NOUN
ap-2241	161	37	for	for	ADP
ap-2241	161	38	thruster	thruster	NOUN
ap-2241	161	39	‘	'	PUNCT
ap-2241	161	40	2	2	NUM
ap-2241	161	41	’	'	PUNCT
ap-2241	161	42	.	.	PUNCT
ap-2241	162	1	also	also	ADV
ap-2241	162	2	,	,	PUNCT
ap-2241	162	3	the	the	DET
ap-2241	162	4	position	position	NOUN
ap-2241	162	5	of	of	ADP
ap-2241	162	6	the	the	DET
ap-2241	162	7	maximum	maximum	ADJ
ap-2241	162	8	back	back	ADJ
ap-2241	162	9	-	-	PUNCT
ap-2241	162	10	flux	flux	NOUN
ap-2241	162	11	varies	vary	VERB
ap-2241	162	12	more	more	ADV
ap-2241	162	13	in	in	ADP
ap-2241	162	14	poloidal	poloidal	NOUN
ap-2241	162	15	angles	angle	NOUN
ap-2241	162	16	ϕ.	ϕ.	NOUN
ap-2241	162	17	here	here	ADV
ap-2241	162	18	,	,	PUNCT
ap-2241	162	19	the	the	DET
ap-2241	162	20	symmetric	symmetric	ADJ
ap-2241	162	21	thruster	thruster	NOUN
ap-2241	162	22	positions	position	NOUN
ap-2241	162	23	within	within	ADP
ap-2241	162	24	the	the	DET
ap-2241	162	25	vessel	vessel	NOUN
ap-2241	162	26	with	with	ADP
ap-2241	162	27	respect	respect	NOUN
ap-2241	162	28	to	to	ADP
ap-2241	162	29	the	the	DET
ap-2241	162	30	emitting	emit	VERB
ap-2241	162	31	source	source	NOUN
ap-2241	162	32	is	be	AUX
ap-2241	162	33	important	important	ADJ
ap-2241	162	34	.	.	PUNCT
ap-2241	163	1	these	these	DET
ap-2241	163	2	distribution	distribution	NOUN
ap-2241	163	3	characteristics	characteristic	NOUN
ap-2241	163	4	correspond	correspond	VERB
ap-2241	163	5	to	to	ADP
ap-2241	163	6	observations	observation	NOUN
ap-2241	163	7	during	during	ADP
ap-2241	163	8	testing	testing	NOUN
ap-2241	163	9	of	of	ADP
ap-2241	163	10	the	the	DET
ap-2241	163	11	hemp	hemp	NOUN
ap-2241	163	12	-	-	PUNCT
ap-2241	163	13	t	t	PROPN
ap-2241	163	14	(	(	PUNCT
ap-2241	163	15	b.van	b.van	PROPN
ap-2241	163	16	reijen	reijen	NOUN
ap-2241	163	17	,	,	PUNCT
ap-2241	163	18	personal	personal	ADJ
ap-2241	163	19	communication	communication	NOUN
ap-2241	163	20	,	,	PUNCT
ap-2241	163	21	june	june	PROPN
ap-2241	163	22	,	,	PUNCT
ap-2241	163	23	2014	2014	NUM
ap-2241	163	24	)	)	PUNCT
ap-2241	163	25	.	.	PUNCT
ap-2241	164	1	summarizing	summarize	VERB
ap-2241	164	2	these	these	DET
ap-2241	164	3	results	result	NOUN
ap-2241	164	4	,	,	PUNCT
ap-2241	164	5	a	a	DET
ap-2241	164	6	complex	complex	ADJ
ap-2241	164	7	re	re	NOUN
ap-2241	164	8	-	-	NOUN
ap-2241	164	9	deposition	deposition	NOUN
ap-2241	164	10	profile	profile	NOUN
ap-2241	164	11	appears	appear	VERB
ap-2241	164	12	due	due	ADJ
ap-2241	164	13	to	to	ADP
ap-2241	164	14	the	the	DET
ap-2241	164	15	non	non	ADJ
ap-2241	164	16	-	-	ADJ
ap-2241	164	17	central	central	ADJ
ap-2241	164	18	position	position	NOUN
ap-2241	164	19	of	of	ADP
ap-2241	164	20	the	the	DET
ap-2241	164	21	source	source	NOUN
ap-2241	164	22	within	within	ADP
ap-2241	164	23	the	the	DET
ap-2241	164	24	vessel	vessel	NOUN
ap-2241	164	25	.	.	PUNCT
ap-2241	165	1	therefore	therefore	ADV
ap-2241	165	2	,	,	PUNCT
ap-2241	165	3	the	the	DET
ap-2241	165	4	source	source	NOUN
ap-2241	165	5	particles	particle	NOUN
ap-2241	165	6	do	do	AUX
ap-2241	165	7	not	not	PART
ap-2241	165	8	hit	hit	VERB
ap-2241	165	9	the	the	DET
ap-2241	165	10	vessel	vessel	NOUN
ap-2241	165	11	walls	wall	NOUN
ap-2241	165	12	equally	equally	ADV
ap-2241	165	13	distributed	distribute	VERB
ap-2241	165	14	in	in	ADP
ap-2241	165	15	ϕ	ϕ	NOUN
ap-2241	165	16	,	,	PUNCT
ap-2241	165	17	which	which	PRON
ap-2241	165	18	destroys	destroy	VERB
ap-2241	165	19	the	the	DET
ap-2241	165	20	poloidal	poloidal	ADJ
ap-2241	165	21	symmetry	symmetry	NOUN
ap-2241	165	22	of	of	ADP
ap-2241	165	23	the	the	DET
ap-2241	165	24	emitted	emitted	ADJ
ap-2241	165	25	flux	flux	NOUN
ap-2241	165	26	hitting	hit	VERB
ap-2241	165	27	the	the	DET
ap-2241	165	28	vessel	vessel	NOUN
ap-2241	165	29	walls	wall	NOUN
ap-2241	165	30	.	.	PUNCT
ap-2241	166	1	in	in	ADP
ap-2241	166	2	addition	addition	NOUN
ap-2241	166	3	,	,	PUNCT
ap-2241	166	4	the	the	DET
ap-2241	166	5	distribution	distribution	NOUN
ap-2241	166	6	of	of	ADP
ap-2241	166	7	the	the	DET
ap-2241	166	8	sputtered	sputter	VERB
ap-2241	166	9	particles	particle	NOUN
ap-2241	166	10	is	be	AUX
ap-2241	166	11	overlying	overlie	VERB
ap-2241	166	12	,	,	PUNCT
ap-2241	166	13	which	which	PRON
ap-2241	166	14	gives	give	VERB
ap-2241	166	15	no	no	DET
ap-2241	166	16	poloidal	poloidal	ADJ
ap-2241	166	17	symmetry	symmetry	NOUN
ap-2241	166	18	of	of	ADP
ap-2241	166	19	the	the	DET
ap-2241	166	20	re	re	ADJ
ap-2241	166	21	-	-	ADJ
ap-2241	166	22	deposited	deposit	VERB
ap-2241	166	23	particles	particle	NOUN
ap-2241	166	24	,	,	PUNCT
ap-2241	166	25	although	although	SCONJ
ap-2241	166	26	the	the	DET
ap-2241	166	27	test	test	NOUN
ap-2241	166	28	-	-	PUNCT
ap-2241	166	29	setup	setup	NOUN
ap-2241	166	30	has	have	VERB
ap-2241	166	31	such	such	DET
ap-2241	166	32	a	a	DET
ap-2241	166	33	simple	simple	ADJ
ap-2241	166	34	geometry	geometry	NOUN
ap-2241	166	35	.	.	PUNCT
ap-2241	167	1	the	the	DET
ap-2241	167	2	size	size	NOUN
ap-2241	167	3	of	of	ADP
ap-2241	167	4	the	the	DET
ap-2241	167	5	vessel	vessel	NOUN
ap-2241	167	6	not	not	PART
ap-2241	167	7	only	only	ADV
ap-2241	167	8	influences	influence	VERB
ap-2241	167	9	the	the	DET
ap-2241	167	10	amount	amount	NOUN
ap-2241	167	11	of	of	ADP
ap-2241	167	12	re	re	ADJ
ap-2241	167	13	-	-	ADJ
ap-2241	167	14	deposited	deposit	VERB
ap-2241	167	15	particles	particle	NOUN
ap-2241	167	16	but	but	CCONJ
ap-2241	167	17	also	also	ADV
ap-2241	167	18	gives	give	VERB
ap-2241	167	19	a	a	DET
ap-2241	167	20	more	more	ADV
ap-2241	167	21	pronounced	pronounced	ADJ
ap-2241	167	22	re	re	ADJ
ap-2241	167	23	-	-	NOUN
ap-2241	167	24	deposition	deposition	NOUN
ap-2241	167	25	pattern	pattern	NOUN
ap-2241	167	26	.	.	PUNCT
ap-2241	168	1	6	6	X
ap-2241	168	2	.	.	X
ap-2241	168	3	conclusion	conclusion	NOUN
ap-2241	168	4	a	a	DET
ap-2241	168	5	monte	monte	PROPN
ap-2241	168	6	carlo	carlo	PROPN
ap-2241	168	7	model	model	NOUN
ap-2241	168	8	using	use	VERB
ap-2241	168	9	a	a	DET
ap-2241	168	10	ray	ray	NOUN
ap-2241	168	11	approximation	approximation	NOUN
ap-2241	168	12	for	for	ADP
ap-2241	168	13	the	the	DET
ap-2241	168	14	particles	particle	NOUN
ap-2241	168	15	allowsus	allowsus	PROPN
ap-2241	168	16	to	to	PART
ap-2241	168	17	calculate	calculate	VERB
ap-2241	168	18	the	the	DET
ap-2241	168	19	back	back	NOUN
ap-2241	168	20	-	-	PUNCT
ap-2241	168	21	flux	flux	NOUN
ap-2241	168	22	towards	towards	ADP
ap-2241	168	23	the	the	DET
ap-2241	168	24	thruster	thruster	NOUN
ap-2241	168	25	exit	exit	NOUN
ap-2241	168	26	generated	generate	VERB
ap-2241	168	27	by	by	ADP
ap-2241	168	28	sputtered	sputter	VERB
ap-2241	168	29	particles	particle	NOUN
ap-2241	168	30	at	at	ADP
ap-2241	168	31	the	the	DET
ap-2241	168	32	vessel	vessel	NOUN
ap-2241	168	33	walls	wall	NOUN
ap-2241	168	34	.	.	PUNCT
ap-2241	169	1	it	it	PRON
ap-2241	169	2	has	have	AUX
ap-2241	169	3	shown	show	VERB
ap-2241	169	4	the	the	DET
ap-2241	169	5	influence	influence	NOUN
ap-2241	169	6	of	of	ADP
ap-2241	169	7	the	the	DET
ap-2241	169	8	test	test	NOUN
ap-2241	169	9	set	set	NOUN
ap-2241	169	10	-	-	PUNCT
ap-2241	169	11	up	up	NOUN
ap-2241	169	12	and	and	CCONJ
ap-2241	169	13	the	the	DET
ap-2241	169	14	vessel	vessel	NOUN
ap-2241	169	15	size	size	NOUN
ap-2241	169	16	,	,	PUNCT
ap-2241	169	17	which	which	PRON
ap-2241	169	18	affects	affect	VERB
ap-2241	169	19	the	the	DET
ap-2241	169	20	re	re	NOUN
ap-2241	169	21	-	-	NOUN
ap-2241	169	22	deposition	deposition	NOUN
ap-2241	169	23	pattern	pattern	NOUN
ap-2241	169	24	inside	inside	ADP
ap-2241	169	25	the	the	DET
ap-2241	169	26	thruster	thruster	NOUN
ap-2241	169	27	channels	channel	NOUN
ap-2241	169	28	.	.	PUNCT
ap-2241	170	1	a	a	DET
ap-2241	170	2	non	non	ADJ
ap-2241	170	3	-	-	ADJ
ap-2241	170	4	centered	centered	ADJ
ap-2241	170	5	emitting	emit	VERB
ap-2241	170	6	source	source	NOUN
ap-2241	170	7	leads	lead	VERB
ap-2241	170	8	to	to	ADP
ap-2241	170	9	a	a	DET
ap-2241	170	10	complex	complex	ADJ
ap-2241	170	11	redeposition	redeposition	NOUN
ap-2241	170	12	profile	profile	NOUN
ap-2241	170	13	within	within	ADP
ap-2241	170	14	the	the	DET
ap-2241	170	15	thruster	thruster	NOUN
ap-2241	170	16	channels	channel	NOUN
ap-2241	170	17	.	.	PUNCT
ap-2241	171	1	this	this	DET
ap-2241	171	2	effect	effect	NOUN
ap-2241	171	3	can	can	AUX
ap-2241	171	4	be	be	AUX
ap-2241	171	5	diminished	diminish	VERB
ap-2241	171	6	with	with	ADP
ap-2241	171	7	a	a	DET
ap-2241	171	8	larger	large	ADJ
ap-2241	171	9	vacuum	vacuum	NOUN
ap-2241	171	10	vessel	vessel	NOUN
ap-2241	171	11	which	which	PRON
ap-2241	171	12	reduces	reduce	VERB
ap-2241	171	13	the	the	DET
ap-2241	171	14	back	back	NOUN
ap-2241	171	15	-	-	PUNCT
ap-2241	171	16	flux	flux	NOUN
ap-2241	171	17	and	and	CCONJ
ap-2241	171	18	smoothes	smooth	VERB
ap-2241	171	19	the	the	DET
ap-2241	171	20	re	re	NOUN
ap-2241	171	21	-	-	NOUN
ap-2241	171	22	deposition	deposition	NOUN
ap-2241	171	23	patterns	pattern	NOUN
ap-2241	171	24	inside	inside	ADP
ap-2241	171	25	the	the	DET
ap-2241	171	26	channel	channel	NOUN
ap-2241	171	27	.	.	PUNCT
ap-2241	172	1	the	the	DET
ap-2241	172	2	emission	emission	NOUN
ap-2241	172	3	distribution	distribution	NOUN
ap-2241	172	4	of	of	ADP
ap-2241	172	5	the	the	DET
ap-2241	172	6	thruster	thruster	NOUN
ap-2241	172	7	itself	itself	PRON
ap-2241	172	8	also	also	ADV
ap-2241	172	9	plays	play	VERB
ap-2241	172	10	an	an	DET
ap-2241	172	11	important	important	ADJ
ap-2241	172	12	role	role	NOUN
ap-2241	172	13	.	.	PUNCT
ap-2241	173	1	the	the	DET
ap-2241	173	2	results	result	NOUN
ap-2241	173	3	represent	represent	VERB
ap-2241	173	4	a	a	DET
ap-2241	173	5	worst	bad	ADJ
ap-2241	173	6	case	case	NOUN
ap-2241	173	7	scenario	scenario	NOUN
ap-2241	173	8	,	,	PUNCT
ap-2241	173	9	since	since	SCONJ
ap-2241	173	10	the	the	DET
ap-2241	173	11	emission	emission	NOUN
ap-2241	173	12	distribution	distribution	NOUN
ap-2241	173	13	of	of	ADP
ap-2241	173	14	the	the	DET
ap-2241	173	15	thruster	thruster	NOUN
ap-2241	173	16	was	be	AUX
ap-2241	173	17	assumed	assume	VERB
ap-2241	173	18	to	to	PART
ap-2241	173	19	be	be	AUX
ap-2241	173	20	beam	beam	NOUN
ap-2241	173	21	-	-	PUNCT
ap-2241	173	22	like	like	ADJ
ap-2241	173	23	and	and	CCONJ
ap-2241	173	24	aluminum	aluminum	NOUN
ap-2241	173	25	was	be	AUX
ap-2241	173	26	taken	take	VERB
ap-2241	173	27	as	as	ADP
ap-2241	173	28	the	the	DET
ap-2241	173	29	vessel	vessel	NOUN
ap-2241	173	30	wall	wall	NOUN
ap-2241	173	31	material	material	PROPN
ap-2241	173	32	.	.	PUNCT
ap-2241	174	1	for	for	ADP
ap-2241	174	2	broader	broad	ADJ
ap-2241	174	3	emission	emission	NOUN
ap-2241	174	4	distributions	distribution	NOUN
ap-2241	174	5	and	and	CCONJ
ap-2241	174	6	back	back	NOUN
ap-2241	174	7	-	-	PUNCT
ap-2241	174	8	flux	flux	NOUN
ap-2241	174	9	reducing	reduce	VERB
ap-2241	174	10	modifications	modification	NOUN
ap-2241	174	11	,	,	PUNCT
ap-2241	174	12	e.g.	e.g.	ADV
ap-2241	174	13	,	,	PUNCT
ap-2241	174	14	carbon	carbon	NOUN
ap-2241	174	15	walls	wall	NOUN
ap-2241	174	16	or	or	CCONJ
ap-2241	174	17	baffles	baffle	VERB
ap-2241	174	18	[	[	X
ap-2241	174	19	2	2	NUM
ap-2241	174	20	]	]	PUNCT
ap-2241	174	21	,	,	PUNCT
ap-2241	174	22	the	the	DET
ap-2241	174	23	effects	effect	NOUN
ap-2241	174	24	are	be	AUX
ap-2241	174	25	reduced	reduce	VERB
ap-2241	174	26	.	.	PUNCT
ap-2241	175	1	effects	effect	NOUN
ap-2241	175	2	like	like	ADP
ap-2241	175	3	secondary	secondary	ADJ
ap-2241	175	4	electron	electron	NOUN
ap-2241	175	5	emission	emission	NOUN
ap-2241	175	6	at	at	ADP
ap-2241	175	7	the	the	DET
ap-2241	175	8	vessel	vessel	NOUN
ap-2241	175	9	walls	wall	NOUN
ap-2241	175	10	,	,	PUNCT
ap-2241	175	11	which	which	PRON
ap-2241	175	12	influence	influence	VERB
ap-2241	175	13	the	the	DET
ap-2241	175	14	plume	plume	NOUN
ap-2241	175	15	potential	potential	NOUN
ap-2241	175	16	,	,	PUNCT
ap-2241	175	17	collisions	collision	NOUN
ap-2241	175	18	of	of	ADP
ap-2241	175	19	propellant	propellant	NOUN
ap-2241	175	20	ions	ion	NOUN
ap-2241	175	21	with	with	ADP
ap-2241	175	22	residual	residual	ADJ
ap-2241	175	23	gas	gas	NOUN
ap-2241	175	24	,	,	PUNCT
ap-2241	175	25	regions	region	NOUN
ap-2241	175	26	of	of	ADP
ap-2241	175	27	magnetized	magnetize	VERB
ap-2241	175	28	electrons	electron	NOUN
ap-2241	175	29	in	in	ADP
ap-2241	175	30	the	the	DET
ap-2241	175	31	plume	plume	NOUN
ap-2241	175	32	and	and	CCONJ
ap-2241	175	33	changes	change	NOUN
ap-2241	175	34	in	in	ADP
ap-2241	175	35	the	the	DET
ap-2241	175	36	thruster	thruster	NOUN
ap-2241	175	37	potential	potential	NOUN
ap-2241	175	38	due	due	ADP
ap-2241	175	39	to	to	PART
ap-2241	175	40	re	re	VERB
ap-2241	175	41	-	-	VERB
ap-2241	175	42	deposited	deposit	VERB
ap-2241	175	43	layers	layer	NOUN
ap-2241	175	44	inside	inside	ADP
ap-2241	175	45	the	the	DET
ap-2241	175	46	channel	channel	NOUN
ap-2241	175	47	are	be	AUX
ap-2241	175	48	not	not	PART
ap-2241	175	49	considered	consider	VERB
ap-2241	175	50	within	within	ADP
ap-2241	175	51	this	this	DET
ap-2241	175	52	model	model	NOUN
ap-2241	175	53	.	.	PUNCT
ap-2241	176	1	in	in	ADP
ap-2241	176	2	a	a	DET
ap-2241	176	3	future	future	ADJ
ap-2241	176	4	modeling	modeling	NOUN
ap-2241	176	5	step	step	NOUN
ap-2241	176	6	,	,	PUNCT
ap-2241	176	7	the	the	DET
ap-2241	176	8	estimated	estimate	VERB
ap-2241	176	9	back	back	ADJ
ap-2241	176	10	-	-	PUNCT
ap-2241	176	11	flux	flux	NOUN
ap-2241	176	12	distribution	distribution	NOUN
ap-2241	176	13	can	can	AUX
ap-2241	176	14	be	be	AUX
ap-2241	176	15	used	use	VERB
ap-2241	176	16	for	for	ADP
ap-2241	176	17	simulating	simulate	VERB
ap-2241	176	18	the	the	DET
ap-2241	176	19	erosion	erosion	NOUN
ap-2241	176	20	and	and	CCONJ
ap-2241	176	21	re	re	NOUN
ap-2241	176	22	-	-	NOUN
ap-2241	176	23	deposition	deposition	NOUN
ap-2241	176	24	on	on	ADP
ap-2241	176	25	the	the	DET
ap-2241	176	26	thruster	thruster	NOUN
ap-2241	176	27	surfaces	surface	NOUN
ap-2241	176	28	.	.	PUNCT
ap-2241	177	1	this	this	PRON
ap-2241	177	2	could	could	AUX
ap-2241	177	3	clarify	clarify	VERB
ap-2241	177	4	more	more	ADV
ap-2241	177	5	precisely	precisely	ADV
ap-2241	177	6	how	how	SCONJ
ap-2241	177	7	terrestrial	terrestrial	ADJ
ap-2241	177	8	conditions	condition	NOUN
ap-2241	177	9	influence	influence	VERB
ap-2241	177	10	the	the	DET
ap-2241	177	11	thrust	thrust	ADJ
ap-2241	177	12	measurements	measurement	NOUN
ap-2241	177	13	in	in	ADP
ap-2241	177	14	total	total	NOUN
ap-2241	177	15	.	.	PUNCT
ap-2241	178	1	acknowledgements	acknowledgement	NOUN
ap-2241	178	2	this	this	DET
ap-2241	178	3	work	work	NOUN
ap-2241	178	4	was	be	AUX
ap-2241	178	5	supported	support	VERB
ap-2241	178	6	by	by	ADP
ap-2241	178	7	the	the	DET
ap-2241	178	8	german	german	ADJ
ap-2241	178	9	space	space	NOUN
ap-2241	178	10	agency	agency	NOUN
ap-2241	178	11	dlr	dlr	PROPN
ap-2241	178	12	through	through	ADP
ap-2241	178	13	project	project	NOUN
ap-2241	178	14	50	50	NUM
ap-2241	178	15	rs	rs	NOUN
ap-2241	178	16	1101	1101	NUM
ap-2241	178	17	.	.	PUNCT
ap-2241	179	1	references	reference	NOUN
ap-2241	179	2	[	[	X
ap-2241	179	3	1	1	NUM
ap-2241	179	4	]	]	X
ap-2241	179	5	n.	n.	PROPN
ap-2241	179	6	koch	koch	PROPN
ap-2241	179	7	,	,	PUNCT
ap-2241	179	8	h.-p	h.-p	PROPN
ap-2241	179	9	.	.	PUNCT
ap-2241	180	1	harmann	harmann	PROPN
ap-2241	180	2	,	,	PUNCT
ap-2241	180	3	g.	g.	PROPN
ap-2241	180	4	kornfeld	kornfeld	PROPN
ap-2241	180	5	(	(	PUNCT
ap-2241	180	6	eds	ed	NOUN
ap-2241	180	7	.	.	PUNCT
ap-2241	180	8	)	)	PUNCT
ap-2241	180	9	.	.	PUNCT
ap-2241	181	1	status	status	NOUN
ap-2241	181	2	of	of	ADP
ap-2241	181	3	the	the	DET
ap-2241	181	4	thales	thales	PROPN
ap-2241	181	5	high	high	ADJ
ap-2241	181	6	efficiency	efficiency	PROPN
ap-2241	181	7	multi	multi	ADJ
ap-2241	181	8	stage	stage	NOUN
ap-2241	181	9	plasma	plasma	NOUN
ap-2241	181	10	thruster	thruster	NOUN
ap-2241	181	11	development	development	NOUN
ap-2241	181	12	for	for	ADP
ap-2241	181	13	hemp	hemp	NOUN
ap-2241	181	14	-	-	PUNCT
ap-2241	181	15	t	t	NOUN
ap-2241	181	16	3050	3050	NUM
ap-2241	181	17	and	and	CCONJ
ap-2241	181	18	hemp	hemp	NOUN
ap-2241	181	19	-	-	PUNCT
ap-2241	181	20	t	t	PROPN
ap-2241	181	21	12	12	NUM
ap-2241	181	22	vol	vol	NOUN
ap-2241	181	23	.	.	PUNCT
ap-2241	182	1	55	55	NUM
ap-2241	182	2	no	no	NOUN
ap-2241	182	3	.	.	PROPN
ap-2241	183	1	1/2015	1/2015	NUM
ap-2241	183	2	monte	monte	PROPN
ap-2241	183	3	-	-	PUNCT
ap-2241	183	4	carlo	carlo	PROPN
ap-2241	183	5	re	re	NOUN
ap-2241	183	6	-	-	NOUN
ap-2241	183	7	deposition	deposition	NOUN
ap-2241	183	8	model	model	NOUN
ap-2241	183	9	30250	30250	NUM
ap-2241	183	10	,	,	PUNCT
ap-2241	183	11	iepc-2007	iepc-2007	NOUN
ap-2241	183	12	-	-	PUNCT
ap-2241	183	13	110	110	NUM
ap-2241	183	14	.	.	PUNCT
ap-2241	184	1	30th	30th	ADJ
ap-2241	184	2	international	international	ADJ
ap-2241	184	3	electric	electric	ADJ
ap-2241	184	4	propulsion	propulsion	NOUN
ap-2241	184	5	conference	conference	NOUN
ap-2241	184	6	,	,	PUNCT
ap-2241	184	7	2007	2007	NUM
ap-2241	184	8	.	.	PUNCT
ap-2241	185	1	[	[	X
ap-2241	185	2	2	2	NUM
ap-2241	185	3	]	]	PUNCT
ap-2241	185	4	o.	o.	NOUN
ap-2241	185	5	kalentev	kalentev	PROPN
ap-2241	185	6	,	,	PUNCT
ap-2241	185	7	k.	k.	PROPN
ap-2241	185	8	matyash	matyash	PROPN
ap-2241	185	9	,	,	PUNCT
ap-2241	185	10	j.	j.	PROPN
ap-2241	185	11	duras	duras	PROPN
ap-2241	185	12	,	,	PUNCT
ap-2241	185	13	et	et	PROPN
ap-2241	185	14	al	al	PROPN
ap-2241	185	15	.	.	PROPN
ap-2241	186	1	electrostatic	electrostatic	ADJ
ap-2241	186	2	ion	ion	NOUN
ap-2241	186	3	thrusters	thruster	NOUN
ap-2241	186	4	towards	towards	ADP
ap-2241	186	5	predictive	predictive	ADJ
ap-2241	186	6	modeling	modeling	NOUN
ap-2241	186	7	.	.	PUNCT
ap-2241	187	1	contributions	contribution	NOUN
ap-2241	187	2	to	to	ADP
ap-2241	187	3	plasma	plasma	NOUN
ap-2241	187	4	physics	physics	NOUN
ap-2241	187	5	54:235–248	54:235–248	PROPN
ap-2241	187	6	,	,	PUNCT
ap-2241	187	7	2014	2014	NUM
ap-2241	187	8	.	.	PUNCT
ap-2241	188	1	doi:10.1002	doi:10.1002	NOUN
ap-2241	188	2	/	/	SYM
ap-2241	188	3	ctpp.201300038	ctpp.201300038	PROPN
ap-2241	188	4	.	.	PUNCT
ap-2241	189	1	[	[	X
ap-2241	189	2	3	3	X
ap-2241	189	3	]	]	PUNCT
ap-2241	189	4	k.	k.	PROPN
ap-2241	189	5	matyash	matyash	PROPN
ap-2241	189	6	,	,	PUNCT
ap-2241	189	7	r.	r.	PROPN
ap-2241	189	8	schneider	schneider	PROPN
ap-2241	189	9	,	,	PUNCT
ap-2241	189	10	a.	a.	NOUN
ap-2241	189	11	mutzke	mutzke	PROPN
ap-2241	189	12	,	,	PUNCT
ap-2241	190	1	et	et	PROPN
ap-2241	190	2	al	al	PROPN
ap-2241	190	3	.	.	PUNCT
ap-2241	191	1	kinetic	kinetic	ADJ
ap-2241	191	2	simulations	simulation	NOUN
ap-2241	191	3	of	of	ADP
ap-2241	191	4	spt	spt	NOUN
ap-2241	191	5	and	and	CCONJ
ap-2241	191	6	hemp	hemp	ADJ
ap-2241	191	7	thrusters	thruster	NOUN
ap-2241	191	8	including	include	VERB
ap-2241	191	9	the	the	DET
ap-2241	191	10	near	near	ADJ
ap-2241	191	11	-	-	PUNCT
ap-2241	191	12	field	field	NOUN
ap-2241	191	13	plume	plume	NOUN
ap-2241	191	14	region	region	NOUN
ap-2241	191	15	.	.	PUNCT
ap-2241	192	1	ieee	ieee	NOUN
ap-2241	192	2	transactions	transaction	NOUN
ap-2241	192	3	on	on	ADP
ap-2241	192	4	plasma	plasma	NOUN
ap-2241	192	5	since	since	SCONJ
ap-2241	192	6	38(9	38(9	NOUN
ap-2241	192	7	,	,	PUNCT
ap-2241	192	8	part	part	NOUN
ap-2241	192	9	1):2274–2280	1):2274–2280	NUM
ap-2241	192	10	,	,	PUNCT
ap-2241	192	11	2010	2010	NUM
ap-2241	192	12	.	.	PUNCT
ap-2241	193	1	doi:10.1109	doi:10.1109	VERB
ap-2241	193	2	/	/	SYM
ap-2241	194	1	tps.2010.2056936	tps.2010.2056936	NUM
ap-2241	194	2	.	.	PUNCT
ap-2241	195	1	[	[	X
ap-2241	195	2	4	4	NUM
ap-2241	195	3	]	]	PUNCT
ap-2241	195	4	a.	a.	NOUN
ap-2241	195	5	genovese	genovese	NOUN
ap-2241	195	6	,	,	PUNCT
ap-2241	195	7	a.	a.	NOUN
ap-2241	195	8	lazurenko	lazurenko	PROPN
ap-2241	195	9	,	,	PUNCT
ap-2241	195	10	n.	n.	PROPN
ap-2241	195	11	koch	koch	PROPN
ap-2241	195	12	,	,	PUNCT
ap-2241	195	13	et	et	PROPN
ap-2241	195	14	al	al	PROPN
ap-2241	195	15	.	.	PUNCT
ap-2241	195	16	(	(	PUNCT
ap-2241	195	17	eds	ed	NOUN
ap-2241	195	18	.	.	PUNCT
ap-2241	195	19	)	)	PUNCT
ap-2241	195	20	.	.	PUNCT
ap-2241	196	1	endurance	endurance	NOUN
ap-2241	196	2	testing	testing	NOUN
ap-2241	196	3	of	of	ADP
ap-2241	196	4	hempt	hempt	NOUN
ap-2241	196	5	-	-	PUNCT
ap-2241	196	6	based	base	VERB
ap-2241	196	7	ion	ion	NOUN
ap-2241	196	8	propulsion	propulsion	NOUN
ap-2241	196	9	modules	module	NOUN
ap-2241	196	10	for	for	ADP
ap-2241	196	11	smallgeo	smallgeo	NOUN
ap-2241	196	12	,	,	PUNCT
ap-2241	196	13	iepc-2011	iepc-2011	NOUN
ap-2241	196	14	-	-	PUNCT
ap-2241	196	15	141	141	NUM
ap-2241	196	16	.	.	PUNCT
ap-2241	197	1	32th	32th	ADJ
ap-2241	197	2	international	international	ADJ
ap-2241	197	3	electric	electric	ADJ
ap-2241	197	4	propulsion	propulsion	NOUN
ap-2241	197	5	conference	conference	NOUN
ap-2241	197	6	,	,	PUNCT
ap-2241	197	7	2011	2011	NUM
ap-2241	197	8	.	.	PUNCT
ap-2241	198	1	[	[	X
ap-2241	198	2	5	5	NUM
ap-2241	198	3	]	]	X
ap-2241	198	4	r.	r.	PROPN
ap-2241	198	5	shastry	shastry	PROPN
ap-2241	198	6	,	,	PUNCT
ap-2241	198	7	d.	d.	PROPN
ap-2241	198	8	a.	a.	PROPN
ap-2241	198	9	herman	herman	PROPN
ap-2241	198	10	,	,	PUNCT
ap-2241	198	11	g.	g.	PROPN
ap-2241	198	12	c.	c.	PROPN
ap-2241	198	13	soulas	soulas	PROPN
ap-2241	198	14	,	,	PUNCT
ap-2241	198	15	m.	m.	PROPN
ap-2241	198	16	j.	j.	PROPN
ap-2241	198	17	patterson	patterson	PROPN
ap-2241	198	18	(	(	PUNCT
ap-2241	198	19	eds	eds	PROPN
ap-2241	198	20	.	.	PUNCT
ap-2241	198	21	)	)	PUNCT
ap-2241	198	22	.	.	PUNCT
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ap-2241	199	2	of	of	ADP
ap-2241	199	3	nasa	nasa	PROPN
ap-2241	199	4	’s	’s	PART
ap-2241	199	5	evolutionarry	evolutionarry	NOUN
ap-2241	199	6	xenon	xenon	NOUN
ap-2241	199	7	thruster	thruster	NOUN
ap-2241	199	8	(	(	PUNCT
ap-2241	199	9	next	next	ADJ
ap-2241	199	10	)	)	PUNCT
ap-2241	199	11	long	long	ADJ
ap-2241	199	12	-	-	PUNCT
ap-2241	199	13	duration	duration	NOUN
ap-2241	199	14	test	test	NOUN
ap-2241	199	15	as	as	ADP
ap-2241	199	16	of	of	ADP
ap-2241	199	17	50,000	50,000	NUM
ap-2241	199	18	h	h	NOUN
ap-2241	199	19	and	and	CCONJ
ap-2241	199	20	900	900	NUM
ap-2241	199	21	kg	kg	NOUN
ap-2241	199	22	throughput	throughput	NOUN
ap-2241	199	23	,	,	PUNCT
ap-2241	199	24	iepc-2013	iepc-2013	NOUN
ap-2241	199	25	-	-	PUNCT
ap-2241	199	26	121	121	NUM
ap-2241	199	27	.	.	PUNCT
ap-2241	200	1	33th	33th	ADJ
ap-2241	200	2	international	international	ADJ
ap-2241	200	3	electric	electric	ADJ
ap-2241	200	4	propulsion	propulsion	NOUN
ap-2241	200	5	conference	conference	NOUN
ap-2241	200	6	,	,	PUNCT
ap-2241	200	7	2013	2013	NUM
ap-2241	200	8	.	.	PUNCT
ap-2241	201	1	[	[	X
ap-2241	201	2	6	6	NUM
ap-2241	201	3	]	]	PUNCT
ap-2241	201	4	r.	r.	NOUN
ap-2241	201	5	behrisch	behrisch	PROPN
ap-2241	201	6	,	,	PUNCT
ap-2241	201	7	w.	w.	PROPN
ap-2241	201	8	eckstein	eckstein	PROPN
ap-2241	201	9	.	.	PUNCT
ap-2241	202	1	springer	springer	NOUN
ap-2241	202	2	-	-	PUNCT
ap-2241	202	3	verlag	verlag	PROPN
ap-2241	202	4	.	.	PUNCT
ap-2241	203	1	[	[	X
ap-2241	203	2	7	7	X
ap-2241	203	3	]	]	X
ap-2241	203	4	v.	v.	X
ap-2241	203	5	serikov	serikov	PROPN
ap-2241	203	6	,	,	PUNCT
ap-2241	203	7	k.	k.	PROPN
ap-2241	203	8	nanbu	nanbu	PROPN
ap-2241	203	9	.	.	PUNCT
ap-2241	204	1	monte	monte	PROPN
ap-2241	204	2	carlo	carlo	PROPN
ap-2241	204	3	numerical	numerical	PROPN
ap-2241	204	4	analysis	analysis	NOUN
ap-2241	204	5	of	of	ADP
ap-2241	204	6	target	target	NOUN
ap-2241	204	7	erosion	erosion	NOUN
ap-2241	204	8	and	and	CCONJ
ap-2241	204	9	film	film	NOUN
ap-2241	204	10	growth	growth	NOUN
ap-2241	204	11	in	in	ADP
ap-2241	204	12	a	a	DET
ap-2241	204	13	three	three	NUM
ap-2241	204	14	-	-	PUNCT
ap-2241	204	15	dimensional	dimensional	ADJ
ap-2241	204	16	sputtering	sputtering	ADJ
ap-2241	204	17	chamber	chamber	NOUN
ap-2241	204	18	.	.	PUNCT
ap-2241	205	1	journal	journal	PROPN
ap-2241	205	2	of	of	ADP
ap-2241	205	3	vacuum	vacuum	PROPN
ap-2241	205	4	science	science	PROPN
ap-2241	205	5	&	&	CCONJ
ap-2241	205	6	technology	technology	PROPN
ap-2241	205	7	a	a	DET
ap-2241	205	8	:	:	PUNCT
ap-2241	205	9	vacuum	vacuum	NOUN
ap-2241	205	10	,	,	PUNCT
ap-2241	205	11	surfaces	surface	NOUN
ap-2241	205	12	,	,	PUNCT
ap-2241	205	13	and	and	CCONJ
ap-2241	205	14	films	film	NOUN
ap-2241	205	15	14(6):3108–3123	14(6):3108–3123	NUM
ap-2241	205	16	,	,	PUNCT
ap-2241	205	17	1996	1996	NUM
ap-2241	205	18	.	.	PUNCT
ap-2241	206	1	doi:10.1116/1.580179	doi:10.1116/1.580179	NOUN
ap-2241	206	2	.	.	PUNCT
ap-2241	207	1	[	[	X
ap-2241	207	2	8	8	NUM
ap-2241	207	3	]	]	X
ap-2241	207	4	c.	c.	PROPN
ap-2241	207	5	shon	shon	PROPN
ap-2241	207	6	,	,	PUNCT
ap-2241	207	7	j.	j.	PROPN
ap-2241	207	8	lee	lee	PROPN
ap-2241	207	9	.	.	PUNCT
ap-2241	208	1	modeling	modeling	NOUN
ap-2241	208	2	of	of	ADP
ap-2241	208	3	magnetron	magnetron	NOUN
ap-2241	208	4	sputtering	sputter	VERB
ap-2241	208	5	plasmas	plasma	NOUN
ap-2241	208	6	.	.	PUNCT
ap-2241	209	1	applied	apply	VERB
ap-2241	209	2	surface	surface	NOUN
ap-2241	209	3	science	science	NOUN
ap-2241	209	4	192(1–4):258–269	192(1–4):258–269	NUM
ap-2241	209	5	,	,	PUNCT
ap-2241	209	6	2002	2002	NUM
ap-2241	209	7	.	.	PUNCT
ap-2241	210	1	advance	advance	NOUN
ap-2241	210	2	in	in	ADP
ap-2241	210	3	low	low	ADJ
ap-2241	210	4	temperature	temperature	NOUN
ap-2241	210	5	rf	rf	NOUN
ap-2241	210	6	plasmas	plasma	NOUN
ap-2241	210	7	,	,	PUNCT
ap-2241	210	8	doi:10.1016	doi:10.1016	PROPN
ap-2241	210	9	/	/	SYM
ap-2241	210	10	s0169	s0169	PROPN
ap-2241	210	11	-	-	PUNCT
ap-2241	210	12	4332(02)00030	4332(02)00030	NOUN
ap-2241	210	13	-	-	NOUN
ap-2241	210	14	2	2	NUM
ap-2241	210	15	.	.	PUNCT
ap-2241	211	1	[	[	X
ap-2241	211	2	9	9	NUM
ap-2241	211	3	]	]	PUNCT
ap-2241	211	4	l.	l.	PROPN
ap-2241	211	5	king	king	PROPN
ap-2241	211	6	.	.	PUNCT
ap-2241	212	1	transport	transport	NOUN
ap-2241	212	2	-	-	PUNCT
ap-2241	212	3	property	property	NOUN
ap-2241	212	4	and	and	CCONJ
ap-2241	212	5	mass	mass	ADJ
ap-2241	212	6	spectral	spectral	ADJ
ap-2241	212	7	measurements	measurement	NOUN
ap-2241	212	8	in	in	ADP
ap-2241	212	9	the	the	DET
ap-2241	212	10	plasma	plasma	NOUN
ap-2241	212	11	exhaust	exhaust	NOUN
ap-2241	212	12	plume	plume	NOUN
ap-2241	212	13	of	of	ADP
ap-2241	212	14	a	a	DET
ap-2241	212	15	hall	hall	NOUN
ap-2241	212	16	-	-	PUNCT
ap-2241	212	17	effect	effect	NOUN
ap-2241	212	18	space	space	NOUN
ap-2241	212	19	propulsion	propulsion	NOUN
ap-2241	212	20	system	system	NOUN
ap-2241	212	21	.	.	PUNCT
ap-2241	213	1	ph.d	ph.d	PROPN
ap-2241	213	2	.	.	PUNCT
ap-2241	214	1	thesis	thesis	NOUN
ap-2241	214	2	,	,	PUNCT
ap-2241	214	3	university	university	PROPN
ap-2241	214	4	of	of	ADP
ap-2241	214	5	michigan	michigan	PROPN
ap-2241	214	6	,	,	PUNCT
ap-2241	214	7	1998	1998	NUM
ap-2241	214	8	.	.	PUNCT
ap-2241	215	1	[	[	X
ap-2241	215	2	10	10	NUM
ap-2241	215	3	]	]	PUNCT
ap-2241	215	4	a.	a.	NOUN
ap-2241	215	5	rai	rai	PROPN
ap-2241	215	6	,	,	PUNCT
ap-2241	215	7	a.	a.	NOUN
ap-2241	215	8	mutzke	mutzke	PROPN
ap-2241	215	9	,	,	PUNCT
ap-2241	215	10	r.	r.	PROPN
ap-2241	215	11	schneider	schneider	PROPN
ap-2241	215	12	.	.	PUNCT
ap-2241	216	1	modeling	modeling	NOUN
ap-2241	216	2	of	of	ADP
ap-2241	216	3	chemical	chemical	ADJ
ap-2241	216	4	erosion	erosion	NOUN
ap-2241	216	5	of	of	ADP
ap-2241	216	6	graphite	graphite	NOUN
ap-2241	216	7	due	due	ADP
ap-2241	216	8	to	to	ADP
ap-2241	216	9	hydrogen	hydrogen	NOUN
ap-2241	216	10	by	by	ADP
ap-2241	216	11	inclusion	inclusion	NOUN
ap-2241	216	12	of	of	ADP
ap-2241	216	13	chemical	chemical	ADJ
ap-2241	216	14	reactions	reaction	NOUN
ap-2241	216	15	in	in	ADP
ap-2241	216	16	sdtrimsp	sdtrimsp	NOUN
ap-2241	216	17	.	.	PUNCT
ap-2241	217	1	nuclear	nuclear	ADJ
ap-2241	217	2	inst	inst	NOUN
ap-2241	217	3	and	and	CCONJ
ap-2241	217	4	methods	method	NOUN
ap-2241	217	5	in	in	ADP
ap-2241	217	6	physics	physics	NOUN
ap-2241	217	7	research	research	NOUN
ap-2241	217	8	,	,	PUNCT
ap-2241	217	9	b	b	PROPN
ap-2241	217	10	268(1718):2639–2648	268(1718):2639–2648	NUM
ap-2241	217	11	,	,	PUNCT
ap-2241	217	12	2010	2010	NUM
ap-2241	217	13	.	.	PUNCT
ap-2241	218	1	doi:10.1016	doi:10.1016	PROPN
ap-2241	218	2	/	/	SYM
ap-2241	218	3	j.nimb.2010.06.040	j.nimb.2010.06.040	PROPN
ap-2241	218	4	.	.	PUNCT
ap-2241	219	1	[	[	X
ap-2241	219	2	11	11	NUM
ap-2241	219	3	]	]	PUNCT
ap-2241	219	4	w.	w.	PROPN
ap-2241	219	5	eckstein	eckstein	PROPN
ap-2241	219	6	.	.	PUNCT
ap-2241	220	1	computer	computer	NOUN
ap-2241	220	2	simulation	simulation	NOUN
ap-2241	220	3	of	of	ADP
ap-2241	220	4	ion	ion	NOUN
ap-2241	220	5	-	-	PUNCT
ap-2241	220	6	solid	solid	ADJ
ap-2241	220	7	interaction	interaction	NOUN
ap-2241	220	8	,	,	PUNCT
ap-2241	220	9	vol	vol	NOUN
ap-2241	220	10	.	.	PROPN
ap-2241	220	11	10	10	NUM
ap-2241	220	12	of	of	ADP
ap-2241	220	13	springer	springer	NOUN
ap-2241	220	14	series	series	NOUN
ap-2241	220	15	in	in	ADP
ap-2241	220	16	material	material	NOUN
ap-2241	220	17	science	science	NOUN
ap-2241	220	18	.	.	PUNCT
ap-2241	221	1	springer	springer	NOUN
ap-2241	221	2	,	,	PUNCT
ap-2241	221	3	1991	1991	NUM
ap-2241	221	4	.	.	PUNCT
ap-2241	222	1	[	[	X
ap-2241	222	2	12	12	NUM
ap-2241	222	3	]	]	X
ap-2241	222	4	o.	o.	NOUN
ap-2241	222	5	kalentev	kalentev	PROPN
ap-2241	222	6	,	,	PUNCT
ap-2241	222	7	l.	l.	PROPN
ap-2241	222	8	lewerentz	lewerentz	PROPN
ap-2241	222	9	,	,	PUNCT
ap-2241	222	10	j.	j.	PROPN
ap-2241	222	11	duras	duras	PROPN
ap-2241	222	12	,	,	PUNCT
ap-2241	222	13	et	et	PROPN
ap-2241	222	14	al	al	PROPN
ap-2241	222	15	.	.	PROPN
ap-2241	222	16	infinitesimal	infinitesimal	ADJ
ap-2241	222	17	analytical	analytical	ADJ
ap-2241	222	18	approach	approach	NOUN
ap-2241	222	19	for	for	ADP
ap-2241	222	20	the	the	DET
ap-2241	222	21	backscattering	backscattering	NOUN
ap-2241	222	22	problem	problem	NOUN
ap-2241	222	23	.	.	PUNCT
ap-2241	223	1	journal	journal	NOUN
ap-2241	223	2	of	of	ADP
ap-2241	223	3	propulsion	propulsion	NOUN
ap-2241	223	4	and	and	CCONJ
ap-2241	223	5	power	power	NOUN
ap-2241	223	6	29(2):495–498	29(2):495–498	PROPN
ap-2241	223	7	,	,	PUNCT
ap-2241	223	8	2013	2013	NUM
ap-2241	223	9	.	.	PUNCT
ap-2241	224	1	doi:10.1002	doi:10.1002	NOUN
ap-2241	224	2	/	/	SYM
ap-2241	224	3	ctpp.201300038	ctpp.201300038	PROPN
ap-2241	224	4	.	.	PUNCT
ap-2241	225	1	[	[	X
ap-2241	225	2	13	13	NUM
ap-2241	225	3	]	]	SYM
ap-2241	225	4	aerospazio	aerospazio	PROPN
ap-2241	225	5	tecnologie	tecnologie	NOUN
ap-2241	225	6	s.r.l	s.r.l	NOUN
ap-2241	225	7	.	.	PUNCT
ap-2241	225	8	http://www.aerospazio.com	http://www.aerospazio.com	X
ap-2241	226	1	[	[	X
ap-2241	226	2	2014	2014	NUM
ap-2241	226	3	-	-	SYM
ap-2241	226	4	02	02	NUM
ap-2241	226	5	-	-	NUM
ap-2241	226	6	01	01	NUM
ap-2241	226	7	]	]	PUNCT
ap-2241	226	8	.	.	PUNCT
ap-2241	227	1	[	[	X
ap-2241	227	2	14	14	NUM
ap-2241	227	3	]	]	PUNCT
ap-2241	227	4	h.-p	h.-p	NOUN
ap-2241	227	5	.	.	PUNCT
ap-2241	228	1	harmann	harmann	PROPN
ap-2241	228	2	,	,	PUNCT
ap-2241	228	3	n.	n.	PROPN
ap-2241	228	4	koch	koch	PROPN
ap-2241	228	5	,	,	PUNCT
ap-2241	228	6	g.	g.	PROPN
ap-2241	228	7	kornfeld	kornfeld	PROPN
ap-2241	228	8	(	(	PUNCT
ap-2241	228	9	eds	ed	NOUN
ap-2241	228	10	.	.	PUNCT
ap-2241	228	11	)	)	PUNCT
ap-2241	228	12	.	.	PUNCT
ap-2241	229	1	the	the	DET
ap-2241	229	2	ulan	ulan	PROPN
ap-2241	229	3	test	test	NOUN
ap-2241	229	4	station	station	NOUN
ap-2241	229	5	and	and	CCONJ
ap-2241	229	6	its	its	PRON
ap-2241	229	7	diagnostic	diagnostic	ADJ
ap-2241	229	8	package	package	NOUN
ap-2241	229	9	for	for	ADP
ap-2241	229	10	thruster	thruster	NOUN
ap-2241	229	11	characterization	characterization	NOUN
ap-2241	229	12	,	,	PUNCT
ap-2241	229	13	iepc-2007	iepc-2007	NOUN
ap-2241	229	14	-	-	PUNCT
ap-2241	229	15	119	119	NUM
ap-2241	229	16	.	.	PUNCT
ap-2241	230	1	30th	30th	ADJ
ap-2241	230	2	international	international	ADJ
ap-2241	230	3	electric	electric	ADJ
ap-2241	230	4	propulsion	propulsion	NOUN
ap-2241	230	5	conference	conference	NOUN
ap-2241	230	6	,	,	PUNCT
ap-2241	230	7	2007	2007	NUM
ap-2241	230	8	.	.	PUNCT
ap-2241	231	1	13	13	NUM
ap-2241	231	2	http://dx.doi.org/10.1002/ctpp.201300038	http://dx.doi.org/10.1002/ctpp.201300038	NOUN
ap-2241	231	3	http://dx.doi.org/10.1109/tps.2010.2056936	http://dx.doi.org/10.1109/tps.2010.2056936	INTJ
ap-2241	231	4	http://dx.doi.org/10.1116/1.580179	http://dx.doi.org/10.1116/1.580179	PROPN
ap-2241	231	5	http://dx.doi.org/10.1016/s0169-4332(02)00030-2	http://dx.doi.org/10.1016/s0169-4332(02)00030-2	PROPN
ap-2241	231	6	http://dx.doi.org/10.1016/j.nimb.2010.06.040	http://dx.doi.org/10.1016/j.nimb.2010.06.040	X
ap-2241	231	7	http://dx.doi.org/10.1002/ctpp.201300038	http://dx.doi.org/10.1002/ctpp.201300038	X
ap-2241	231	8	http://www.aerospazio.com	http://www.aerospazio.com	X
ap-2241	231	9	acta	acta	PROPN
ap-2241	231	10	polytechnica	polytechnica	PROPN
ap-2241	231	11	55(1):7–13	55(1):7–13	NUM
ap-2241	231	12	,	,	PUNCT
ap-2241	231	13	2015	2015	NUM
ap-2241	231	14	1	1	NUM
ap-2241	231	15	introduction	introduction	NOUN
ap-2241	231	16	2	2	NUM
ap-2241	231	17	modeling	modeling	NOUN
ap-2241	231	18	strategy	strategy	NOUN
ap-2241	231	19	3	3	NUM
ap-2241	231	20	artifacts	artifact	NOUN
ap-2241	231	21	during	during	ADP
ap-2241	231	22	terrestrial	terrestrial	ADJ
ap-2241	231	23	measurements	measurement	NOUN
ap-2241	231	24	of	of	ADP
ap-2241	231	25	an	an	DET
ap-2241	231	26	ion	ion	NOUN
ap-2241	231	27	thruster	thruster	NOUN
ap-2241	231	28	4	4	NUM
ap-2241	231	29	description	description	NOUN
ap-2241	231	30	of	of	ADP
ap-2241	231	31	the	the	DET
ap-2241	231	32	monte	monte	PROPN
ap-2241	231	33	carlo	carlo	PROPN
ap-2241	231	34	model	model	NOUN
ap-2241	231	35	5	5	NUM
ap-2241	231	36	back	back	NOUN
ap-2241	231	37	-	-	PUNCT
ap-2241	231	38	flux	flux	NOUN
ap-2241	231	39	for	for	ADP
ap-2241	231	40	two	two	NUM
ap-2241	231	41	different	different	ADJ
ap-2241	231	42	test	test	NOUN
ap-2241	231	43	-	-	PUNCT
ap-2241	231	44	setups	setup	NOUN
ap-2241	231	45	6	6	NUM
ap-2241	231	46	conclusion	conclusion	NOUN
ap-2241	231	47	acknowledgements	acknowledgement	NOUN
ap-2241	231	48	references	reference	NOUN