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

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

Результат исследований: Материалы для журналаСтатья

12 Цитирования (Scopus)

Аннотация

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.

Язык оригиналаАнглийский
Страницы (с-по)404-411
Число страниц8
ЖурналPlasma Physics Reports
Том40
Номер выпуска5
DOI
СостояниеОпубликовано - 1 янв 2014

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)

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