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High voltage coaxial switch

Patent ·
OSTI ID:7002245
A coaxial high voltage, high current switch having a solid cylindrical cold cathode coaxially surrounded by a thin hollow cylindrical inner electrode and a larger hollow cylindrical outer electrode. A high voltage trigger between the cathode and the inner electrode causes electrons to be emitted from the cathode and flow to the inner electrode preferably through a vacuum. Some of the electrons penetrate the inner electrode and cause a volumetric discharge in the gas (which may be merely air) between the inner and outer electrodes. The discharge provides a low impedance path between a high voltage charge placed on the outer electrode and a load (which may be a high power laser) coupled to the inner electrode. For high repetition rate the gas between the inner and outer electrodes may be continuously exchanged or refreshed under pressure. 3 figs.
DOE Contract Number:
W-7405-ENG-36
Assignee:
PTO; EDB-94-125362
Patent Number(s):
US 4394622; A
Application Number:
PPN: US 6-269457
OSTI ID:
7002245
Country of Publication:
United States
Language:
English

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