Open AccessSubnanosecond high‐voltage breakdown initiated in high‐pressure nitrogen by a runaway electron beam
Author(s) -
Burachenko Alexander G.,
Tarasenko Victor F.,
Baksht Evgenii Kh.
Publication year - 2017
Publication title -
high voltage
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.732
H-Index - 20
ISSN - 2397-7264
DOI - 10.1049/hve.2017.0016
Subject(s) - cathode ray , anode , nitrogen , beam (structure) , materials science , diode , atomic physics , foil method , electron , electric field , voltage , optics , chemistry , physics , optoelectronics , electrode , nuclear physics , quantum mechanics , composite material , organic chemistry
This study reports on subnanosecond breakdowns initiated on high pressure nitrogen by a runaway electron beam in an inhomogeneous electric field. It is shown that a diffuse discharge with a duration of ≥1 ns is formed in the gas diode. Data are reported for the first time on collector measurements of a supershort avalanche electron beam downstream of an anode foil at a nitrogen pressure of 0.5–1.2 MPa. The beam pulsewidth at these pressures is ∼90 ps. At a nitrogen pressure of 1.2 MPa, the number of electrons with an energy >70 keV recorded by the collector is 4 × 10 6 /cm 2 .