New Preionization Techniques For Gas Lasers By Using A Formed Ferrite Plasma Source

K. Watanabe; F. A. van Goor; R. Fujimoto; W. J. Witteman

doi:10.1117/12.950559

20 June 1989 New Preionization Techniques For Gas Lasers By Using A Formed Ferrite Plasma Source

K. Watanabe, F. A. van Goor, R. Fujimoto, W. J. Witteman

Proceedings Volume 1031, 7th Intl Symp on Gas Flow and Chemical Lasers; (1989) https://doi.org/10.1117/12.950559
Event: 7th International Symposium on Gas Flow and Chemical Lasers, 1988, Vienna, Austria

Abstract

Gas laser preionization techniques using formed ferrite plasma sources (FFPS) are proposed and experimentally demonstrated in two different ways of both a long-distance uniform UV light source and a new type of plasma cathode intended for x-ray generation. The UV source worked well as a preionizer by creating a linear plasma over a 36-cm span along CO2-laser electrodes in an 1:1:8 mixture of 1 atm, and enabled the laser to operate under high energy depositions up to 300 J/l-atm. An x-ray gun diode employing a 6-cm FFPS as a plasma cathode showed high perveance for the small cathode dimension allowing a high anode current of 150 A at 70-kV applied voltage for generating x-rays. The possibilty of the FFPS as new preionization sources for both single-shot and high-repetition-rate operation of excimer and CO2 lasers is discussed.

Citation Download Citation

K. Watanabe, F. A. van Goor, R. Fujimoto, and W. J. Witteman "New Preionization Techniques For Gas Lasers By Using A Formed Ferrite Plasma Source", Proc. SPIE 1031, 7th Intl Symp on Gas Flow and Chemical Lasers, (20 June 1989); https://doi.org/10.1117/12.950559

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