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.


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    Title :

    Surface discharges on teflon, mylar and kapton


    Additional title:

    Oberflaechenentladung bei Teflon, Mylar und Kapton


    Contributors:

    Published in:

    Publication date :

    1979


    Size :

    6 Seiten, 10 Bilder, 17 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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