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Proceedings Paper

Low Pressure Glow Discharge Switches For High Power Excimer Lasers
Author(s): K. Frank; J. Christiansen; W. Hartmann; O. Almen; A. Goertler; C. Kozlik; A. Tinschmann
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Paper Abstract

Pseudo-spark switches are promising condidates to overcome the limitations of pulsed power networks, imposed by the commercially available thyratrons in use. The pseudo-spark switch uses a high power density, low pressure glow discharge, and is capable of withstanding up to 100 % current reversal. Metal-ceramic prototypes have switched up to 40 kV/30 kA at a rate of current rise of 8 x 1011 A/sec. At 32 kV/20 kA and a pulse duration of 90 nsec (FWHM), repetition rates of over 100 pps and a lifetime of over 5 x 106 discharges have been achieved in a discharge circuit with a short circuit load. Streak camera measurements confirm that the discharge in the switch remains a homogeneous glow. The switches seem to be scalable to higher power levels; in addition, paralleling of separate discharge channels in a common housing has been shown to be possible.

Paper Details

Date Published: 26 April 1989
PDF: 5 pages
Proc. SPIE 1023, Excimer Lasers and Applications, (26 April 1989); doi: 10.1117/12.950134
Show Author Affiliations
K. Frank, University of Erlangen-Nuernberg (FRG)
J. Christiansen, University of Erlangen-Nuernberg (FRG)
W. Hartmann, University of Erlangen-Nuernberg (FRG)
O. Almen, University of Erlangen-Nuernberg (FRG)
A. Goertler, University of Erlangen-Nuernberg (FRG)
C. Kozlik, University of Erlangen-Nuernberg (FRG)
A. Tinschmann, University of Erlangen-Nuernberg (FRG)

Published in SPIE Proceedings Vol. 1023:
Excimer Lasers and Applications
Dirk Basting, Editor(s)

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