Title :
Effects of a surface discharge on the space charge distributions in e-irradiated Teflon and Kapton films
Author :
Cals, M.P. ; Marque, J.P. ; Alquié, C.
Author_Institution :
Office Nat. d´´Etudes et de Recherches Aerospatiales, Chatillon, France
Abstract :
An experimental simulation of charging and discharging of polymer films subjected to e-irradiation was conducted. The charge profiles in the irradiated films are measured using the laser-induced pressure wave propagation method. As this method is reproducible and nondestructive, the evolution of the charge density can be recorded at various steps of the irradiation process, until a discharge occurs. The method is applied to in situ measurements of space charge distributions in a vacuum environment up to high charging levels. The effects of a surface discharge on the charge profile in e-irradiated FEP and Kapton films were investigated. The results are of interest in connection with spacecraft charging during magnetic storms
Keywords :
charge measurement; electron beam effects; polymer films; space vehicles; surface discharges; Kapton films; Teflon films; charge density; charge profiles; electron-beam irradiation; laser-induced pressure wave propagation method; magnetic storms; polymer films; space charge distributions; spacecraft charging; surface discharge; vacuum environment; Charge measurement; Current measurement; Magnetic films; Optical propagation; Polymer films; Pressure measurement; Space charge; Space vehicles; Surface charging; Surface discharges;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1990. Annual Report., Conference on
Conference_Location :
Pocono Manor, PA
DOI :
10.1109/CEIDP.1990.201332
