Investigation of plasma opening switch with gaseous pulsed guns

Author

Anan´in, Peter S. ; Karpov, V.B. ; Krasik, Yakov E. ; Lisitsyn, I.V. ; Petrov, Anatoly V. ; Tolmacheva, V.G.

fYear

1990

fDate

21-23 May 1990

Firstpage

188

Abstract

Summary form only given. Experimental studies of microsecond plasma opening switch (POS) operation at the 0.3-TW level with different compositions of plasma produced by pulsed gaseous plasma guns were conducted. The guns used H₂, D₂, He, N₂, Ar, and Kr as active media. Each gun was fed by a capacitor bank of 3 μF, 25 kV. Results demonstrate the degradation of POS characteristics (voltage amplitude, front duration of switched current, and POS impedance) for higher masses of ion species. The best regimes of POS operation were obtained with H₂ guns when the voltage and power enhancement factors reached 5.5 and 4, respectively. Experiments at 10^-4-1O^-5 torr vacuum displayed the production of high-power proton beams in the POS even in the case of nonhydrogeneous plasma. This could be explained by the considerable input of POS secondary plasma production from the oil coating of the electrode surfaces

Keywords

plasma diagnostics; plasma guns; plasma switches; 0.3 TW; 10^-4 to 10^-5 torr; 25 kV; Ar; D₂; H₂; H⁺; He; Kr; N₂; active media; capacitor bank; degradation; electrode surfaces; front duration; gaseous plasma guns; gaseous pulsed guns; high-power proton beams; impedance; microsecond plasma opening switch; nonhydrogeneous plasma; oil coating; operating regime; power enhancement factors; secondary plasma production; switched current; vacuum; voltage amplitude;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 1990. IEEE Conference Record - Abstracts., 1990 IEEE International Conference on

Conference_Location

Oakland, CA, USA

Type

conf

DOI

10.1109/PLASMA.1990.110787

Filename

5726057