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11 December 2019 Cumulation effect of an electron beam generated in a high-voltage nanosecond discharge plasma in vacuum and gas diodes
Mikhail I. Lomaev, Victor F. Tarasenko, Alexander V. Diatlov, Alexander G. Burachenko
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Proceedings Volume 11322, XIV International Conference on Pulsed Lasers and Laser Applications; 113222R (2019) https://doi.org/10.1117/12.2548440
Event: XIV International Conference on Pulsed Lasers and Laser Applications (AMPL-2019), 2019, Tomsk, Russian Federation
Abstract
Cumulation effect of a beam of runaway electrons formed in a high-voltage nanosecond discharge in air at pressures of 3-105 Pa and discharge gap length d of 1 - 5 mm was studied. Optimal conditions of the effect in discharge gap with a tubular potential cathode and grounded flat anode was achieved at an air pressure of ~ 5 Pa and d of 2.7 mm. An electron beam current pulse was recorded behind a foil anode with high (up to ~ 80 ps) time resolution. It was found that, due to the cumulation effect, a through hole is formed in an aluminum foil 20 μm thick after 2-3 discharge pulses. The electron beam was found to register around the zone of maximum beam current density as well. As follows
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Mikhail I. Lomaev, Victor F. Tarasenko, Alexander V. Diatlov, and Alexander G. Burachenko "Cumulation effect of an electron beam generated in a high-voltage nanosecond discharge plasma in vacuum and gas diodes", Proc. SPIE 11322, XIV International Conference on Pulsed Lasers and Laser Applications, 113222R (11 December 2019); https://doi.org/10.1117/12.2548440
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KEYWORDS
Electron beams
Diodes
Aluminum
Plasma
Electrodes
Copper
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