Suppression of Runaway Electron Flows and Specific Features of Working Gas Breakdown in the Uragan-2M Torsatron

The results of experimental studies of the influence of runaway electrons on the parameters of the neutral gas breakdown and suppression of the runaway electron flow in the Uragan-2M torsatron are presented. The influence of the presence or absence of the runaway electron flow on the time characteri...

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Bibliographic Details
Published in:Technical physics 2018-07, Vol.63 (7), p.960-964
Main Authors: Korovin, V. B., Tarasov, I. K., Kramskoi, E. D., Sitnikov, D. A., Dreval’, N. B., Lozin, A. V., Kozulya, M. M.
Format: Article
Language:English
Subjects:
07 ISOTOPES AND RADIATION SOURCES
BREAKDOWN
Classical and Continuum Physics
Comparative analysis
COMPARATIVE EVALUATIONS
ELECTRON BEAMS
Electrons
Gas breakdown
Neutral gases
Physics
Physics and Astronomy
Plasma
RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS
RUNAWAY ELECTRONS
TORSATRON STELLARATORS
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Summary:The results of experimental studies of the influence of runaway electrons on the parameters of the neutral gas breakdown and suppression of the runaway electron flow in the Uragan-2M torsatron are presented. The influence of the presence or absence of the runaway electron flow on the time characteristics of the breakdown is experimentally studied via comparative analysis. It is demonstrated that in the presence of the runaway electron flow the breakdown takes place earlier by an average of 1.5 ms, as compared to the breakdown in the absence of the runaway electron flow. This is also proved by the earlier results obtained at the Uragan-3M torsatron, which allows one to continue the description of some aspects of the runaway electron dynamics and its regularities and formulate a number of recommendations on controlling such electron flows in fusion installations.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784218070198