Pulse-periodic generation of supershort avalanche electron beams and X-ray emission

E. Kh Baksht, A. G. Burachenko, M. V. Erofeev, V. F. Tarasenko

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Pulse-periodic generation of supershort avalanche electron beams (SAEBs) and X-ray emission in nitrogen, as well as the transition from a single-pulse mode to a pulse-periodic mode with a high repetition frequency, was studied experimentally. It is shown that, in the pulse-periodic mode, the full width at halfmaximum of the SAEB is larger and the decrease rate of the gap voltage is lower than those in the single-pulse mode. It is found that, when the front duration of the voltage pulse at a nitrogen pressure of 90 Torr decreases from 2.5 to 0.3 ns, the X-ray exposure dose in the pulse-periodic mode increases by more than one order of magnitude and the number of SAEB electrons also increases. It is shown that, in the pulse-periodic mode of a diffuse discharge, gas heating in the discharge gap results in a severalfold increase in the SAEB amplitude (the number of electrons in the beam). At a generator voltage of 25 kV, nitrogen pressure of 90 Torr, and pulse repetition frequency of 3.5 kHz, a runaway electron beam was detected behind the anode foil.

Original languageEnglish
Pages (from-to)404-411
Number of pages8
JournalPlasma Physics Reports
Volume40
Issue number5
DOIs
Publication statusPublished - 1 Jan 2014

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avalanches
electron beams
pulses
x rays
nitrogen
repetition
voltage generators
low voltage
foils
anodes
electrons
dosage
electric potential

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Pulse-periodic generation of supershort avalanche electron beams and X-ray emission. / Baksht, E. Kh; Burachenko, A. G.; Erofeev, M. V.; Tarasenko, V. F.

In: Plasma Physics Reports, Vol. 40, No. 5, 01.01.2014, p. 404-411.

Research output: Contribution to journalArticle

Baksht, E. Kh ; Burachenko, A. G. ; Erofeev, M. V. ; Tarasenko, V. F. / Pulse-periodic generation of supershort avalanche electron beams and X-ray emission. In: Plasma Physics Reports. 2014 ; Vol. 40, No. 5. pp. 404-411.
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