Triggered low-pressure pseudospark-based high power switch

Author

Kozlik, Claudius ; Frank, Klaus ; Almen, Ortwin ; Christiansen, Jens ; Görtler, Andreas ; Hartmann, Werner ; Tinschmann, Axel ; Tkotz, Rupert

Author_Institution

Inst. of Phys., Erlangen-Nuremberg Univ., West Germany

Volume

17

Issue

5

fYear

1989

fDate

10/1/1989 12:00:00 AM

Firstpage

758

Lastpage

761

Abstract

Investigations and operational results of a pseudospark-based high-power switch are reported. The switch is designed for hold-off voltages and peak currents of 40 kV and 25 kA, respectively. From results obtained with various laboratory-type O-ring sealed switches, an improved, fully brazed metal-ceramic version was developed and investigated. The results show the capability of switching pulse energies of up to 40 J at a current rise rate of 8×10¹¹ A/s and a current reversal of up to 95%. After several 10⁶ discharges there was no significant change in the operational data of the switch. The long-term behavior of the pseudospark switch is currently under investigation under conditions similar to those in excimer laser circuits

Keywords

plasma switches; sparks; 25 kA; 40 J; 40 kV; O-ring sealed switches; current reversal; current rise rate; fully brazed metal-ceramic version; hold-off voltages; peak currents; pseudospark-based high-power switch; pulse energies; triggered low-pressure switch; Anodes; Cathodes; Charge carriers; Discharges; Electrodes; Insulation; Optical switches; Structural rings; Switching circuits; Voltage;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.41197

Filename

41197