X-Ray Preionization Technology For High Pressure Gas Discharge Lasers

Harry Shields

doi:10.1117/12.951330

10 April 1989 X-Ray Preionization Technology For High Pressure Gas Discharge Lasers

Harry Shields

Proceedings Volume 1046, Pulse Power for Lasers II; (1989) https://doi.org/10.1117/12.951330
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

The physical processes involved in x-ray preionization of high-pressure avalanche-discharge gas lasers are reviewed to determine optimum preionizer parameters. Preionization of lasers such as XeCl, CO2 etc., requires an x-ray dose of ~1mR. More strongly attaching rare-gas-fluoride lasers (e.g. KrF) require stronger preionization (> 10 mR per pulse). X-ray generation by electron-beam sources is discussed and candidate cathode types are reviewed. Typical preionizer pulsed-power2 parameters are 100 kV pulses of 100 - 200 ns duration, electron-beam current density of lA cm-2 and repetition rate of ~100 pps.

Citation Download Citation

Harry Shields "X-Ray Preionization Technology For High Pressure Gas Discharge Lasers", Proc. SPIE 1046, Pulse Power for Lasers II, (10 April 1989); https://doi.org/10.1117/12.951330

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