Analysis of the hollow cathode emitted electron beams in a radial multichannel pseudospark

Author

Kiefer, Jochen ; Neff, Willi J. ; Lebert, Rainer ; Naweed, Ahmer

Author_Institution

Fraunhofer-Inst. fur Lasertechnik, Aachen, Germany

Volume

23

Issue

3

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

353

Lastpage

357

Abstract

A radial multichannel pseudospark switch seems advantageous for switching currents exceeding 100 kA. A single common hollow cathode guarantees the same trigger conditions for all channels. The electron beams emitted out of the hollow cathode of this switch are analyzed by means of Faraday-cups by varying the circuit as well as the trigger parameters. In addition to the cup measurements, the discharge is observed using a CCD camera. It is found that each channel of the switch must receive a respective beam, before the resistance of the switch turns low, if the discharge current is to run through that channel. In addition, most of the varied parameters do not influence the electron beam

Keywords

cathodes; electron beams; glow discharges; plasma diagnostics; plasma switches; pulsed power switches; spark gaps; 100 kA; CCD camera; Faraday-cups; discharge current; electron beams; hollow cathode; radial multichannel pseudospark switch; resistance; Anodes; Capacitance; Cathodes; Charge coupled devices; Charge-coupled image sensors; Electron beams; Plasma measurements; Switches; Switching circuits; Voltage;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.402324

Filename

402324