Paul P. Budenstein

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The mechanism of dielectric breakdown in solids, according to recent experimental evidence, involves the creation of a gaseous channel through the dielectric. The high conductance of breakdown appears to be associated with this channel, not with conduction through the solid itself. The central problem in the theory of dielectric breakdown in solids is thus(More)
Factors that affect the breakdown strength of a solid dielectric include the electrode geometry, specimen thickness, specimen homogeneity, and the nature of the applied electrical excitation. In some applications, thick solid dielectrics are subjected to extremely high fields for periods of nanoseconds. The integrity of such systems cannot be extrapolated(More)
When a solid dielectric is subjected to a sufficiently high electrical stress, breakdown occurs with an abrupt increase in conductance. The signature of the breakdown includes a rapid transition from nonlocalized to localized conduction at a field of about 10<sup>6</sup> V/cm, a high breakdown current density, creation of hollow channels through the(More)
Breakdown occurred in an impulsively excited, composite insulation system in the region of the output spark gap and peaking capacitor of a Marx bank generator, The spark gap system contained 8 gaps in parallel operating in pressurized SFG. Systematic differences were observed in the damage morphology from module to module of the spark gap insulating system.(More)
Single impulse dielectric breakdown tests were performed on thick (0.16 to 1.91 cm) polymethylmethacrylate (PMMA) specimens using a uniform field geometry with 7.5 cm diameter Bruce contour electrodes. The applied voltage rose within 20 ns to 2 MV, remained there about 30 ns and decayed in about 65 ns. In some cases, specimens were deliberately altered by(More)
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