Behaviour of High Current Switch for LMJ Project

Author

Cassany, B. ; Courtois, L. ; Eyl, P. ; Patelli, P. ; Kovalchuk, B.M. ; Drouilly, C.

Author_Institution

CEA-CESTA, Le Barp

fYear

2007

Firstpage

345

Lastpage

345

Abstract

Summary form only given. The pulsed power system for the megajoule laser (LMJ) facility will use high current, high charge gas switches. One candidate is the switch developed in HCEI. Some complementary experiments have been conducted at CEA to know some limits of this device. The first one was to use the switch in a short circuit mode in order to increase the peak current and the transferred charges. The current has been increased to 380 kA and the total charge across the switch reached 420 C. The second experiment concerns the sensitivity of the gas purge. The goal was to know the behaviour of this switch when the gas is not replaced after the shot. In all the cases the switch resists to this news solicitations.

Keywords

gas lasers; laser beams; pulsed power switches; CEA; HCEI; LMJ project; current 380 kA; gas purge sensitivity; high current high charge gas switches; megajoule laser facility; pulsed power system; temperature 420 C; Electrodes; Gas lasers; Laser modes; Optical pulses; Power conditioning; Power lasers; Pulse power systems; Resists; Switches; Switching circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2007. ICOPS 2007. IEEE 34th International Conference on

Conference_Location

Albuquerque, NM

ISSN

0730-9244

Print_ISBN

978-1-4244-0915-0

Type

conf

DOI

10.1109/PPPS.2007.4345651

Filename

4345651