id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ap-772	Čechák, T.; Musílek, L.; Trojek, T.; Kopecká, I.	Application of X-Ray Fluorescence Analysis in Investigations of Historical Monuments	2005	4	.pdf	application/pdf	3061	127	56	� is the fraction of the emitted photons collected within the detector solid angle, �(ES) is the detection efficiency at the fluorescence energy of the substrate ES; S is the density of the substrate; C is the density of the coating; and �S(E0) and �S(ES) are mass absorption coeffi- cients of the substrate at energies E0 and ES, respectively and �C(E0) and �C(ES) are the mass absorption coefficients of the coating at energies E0 and ES respectively Under this assumption, the fluorescence intensity ISF measured by the detector is given by I I E E E E SF S C i C S � � � � � 0 0 0 4 1 �� � � � � � � ( ) ( ) exp ( ) sin ( ) sin � f C S i S h E � � � � � � � �� � � � �� � � �� � � � �� � � � 1 1 0sin ( ) sin ( ) sin� � �i S S f E � where I0 is the intensity of the incident radiation, and � is the excitation factor for the respective X-ray line of the substrate.	cache/ap-772.pdf	txt/ap-772.txt