FEP Teflon, Mylar and Kapton H are compared from the point of view of charged-area scaling of discharge current pulse properties. The properties measured are peak current, pulse duration, released charge and energy dissipated in a load resistor, all for 20 keV incident electrons at a current density of 80 nA/cm 2. In general it is found that the three materials are more similar than dissimilar, and furthermore that this similarity extends to discharge damage as well, the damage being identified as a conbination of subsurface filamentary tunnels and surface grooves. The experimental observations are used to motivate a theory of discharge arc propagation in which the propagation velocity is controlled by the rate of removal of excess charge via wave propagation along a filamentary tunnel filled with an overdense plasma.
Surface discharges on teflon, mylar and kapton
Oberflaechenentladung bei Teflon, Mylar und Kapton
IEEE Transactions on Nuclear Science ; NS-26 , 6 ; 5146-5151
1979
6 Seiten, 10 Bilder, 17 Quellen
Article (Journal)
English
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