Low Inductance Low Pressure Spark Gap Switch

Abstract
A low pressure spark gap switch suitable for use as a main switch and as a ``crowbar'' switch on a capacitor bank is described. The switch has been operated over a voltage range of 0.5 to 25 kV, at energies up to 4 kJ and currents up to 500 kA. Under normal operating conditions the triggering time is 40 nsec and the jitter approximately 10 nsec. The inductance of the main switch is 4 mμH and the inductance of the crowbar switch is about 1 mμH.

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