Title :
In-Situ space charge measurements on dielectrics during electronic irradiation by PEA
Author :
Nguyen, X.T. ; Griseri, V. ; Berquez, Laurent
Author_Institution :
Lab. Plasma et Conversion d´Energie, Univ. de Toulouse, Toulouse, France
Abstract :
Material used is space environment are submitted to a large amount of charged particles. This work is focused on the effect of electrons on PolytetraFluoroEthylene (PTFE) that is commonly found in satellites pieces of equipment. To study the behavior of electrons during and post-irradiation we are mainly using the Pulse Electro Acoustic (PEA) technique in an open configuration. Measurements are performed between two periods of irradiation under vacuum. The space charge profiles obtained are analyzed to understand materials charging phenomena. In the present work we focus our studies on a discharge phenomenon that occurs as soon as the surface potential reaches a threshold value.
Keywords :
acoustoelectric effects; charge measurement; radiation effects; space charge; PEA; PEA technique; PTFE; electronic irradiation; polytetrafluoroethylene; pulse electro acoustic; space charge measurements; space charge profiles; Discharges (electric); Electric potential; Electrodes; Electron beams; Radiation effects; Space charge; Surface discharges;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena (CEIDP), 2013 IEEE Conference on
Conference_Location :
Shenzhen
DOI :
10.1109/CEIDP.2013.6748252
