NDLI: Modes of generation of runaway electron beams in gases at a pressure of 1

Content Provider	IEEE Xplore Digital Library
Author	Tarasenko, V.F. Baksht, E.H. Burachenko, A.G. Lomaev, M.I. Sorokin, D.A.
Copyright Year	2010
Description	Author affiliation: Laboratory of Optical Radiations, Institute of High Current Electronics, SB RAS, Tomsk, Russia (Tarasenko, V.F.; Baksht, E.H.; Burachenko, A.G.; Lomaev, M.I.; Sorokin, D.A.)
Abstract	The characteristics of runaway electron beams downstream of a foil anode were studied at a pressure of helium, hydrogen, neon, and nitrogen of 1–760 Torr. High-voltage pulses were applied to the tubular cathode — plane anode gap. The SLEP-150 generator, with no transmission line, produced voltage pulses of amplitude ∼160 kV across a high-resistance load; the incident wave amplitude in the transmission line was ∼150 kV. The pulse rise time was ∼250 ps at a level of 0.1–0.9. It is shown that the highest amplitudes of a supershort avalanche electron beam (SAEB) of pulse duration about 100 ps are attained in helium, hydrogen, and nitrogen at a pressure of ∼60, ∼30, and ∼10 Torr, respectively. Decreasing the pressure 1.5–2 times of helium (p < 60 Torr), hydrogen (p < 30 Torr) and nitrogen (p < 10 Torr) changes the mode of the e-beam generation. It is demonstrated that decreasing the pressure increases the beam current amplitude and the voltage pulse duration across the gap. It is found that increasing the pressure of helium, hydrogen, and nitrogen to hundreds of Torr decreases the delay time between the instants the voltage pulse is applied to the gap and the SAEB is generated as well as the maximum voltage across the gap.
Starting Page	401
Ending Page	404
File Size	539376
Page Count	4
File Format	PDF
ISBN	9781424471317
ISSN	1930885X
e-ISBN	9781424471324
DOI	10.1109/IPMHVC.2010.5958379
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	runaway electron beams neon nitrogen Generators hydrogen Helium Nitrogen Electron beams Ionization increases the beam current amplitude Anodes Cathodes SAEB in helium
Content Type	Text
Resource Type	Article

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