id	keyword
ajst-1580	surface
ajst-1580	material
ajst-1580	electron
ajst-1580	surface potential
ajst-1580	discharge
ajst-1580	flashover
ajst-1580	dielectric
ajst-1580	medium
ajst-1580	surface charge
ajst-1580	current
ajst-1580	electron beam
ajst-1580	spacecraft
ajst-1580	charging
ajst-1580	spacecraft surface