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

12 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

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Pulse-periodic generation of supershort avalanche electron beams and X-ray emission'. Together they form a unique fingerprint.

  • Cite this