High Power Laser and Particle Beams, Volume. 36, Issue 11, 115013(2024)
Design and preliminary experiment of high power long lifetime gas spark switch
Figures & Tables(10)
Fig. 1. Schematic structure of primary design and photograph of 100 kV/20 kA gas spark switch
Fig. 3. Photograph of nylon insulator and high voltage electrode after lifetime test
Fig. 4. Improved structure design of 100 kV/20 kA gas spark switch
Fig. 6. Ceramic packaged switch, on whose outer surface flashover occuerd
Table 1. Lifetime test results of gas spark switches with improved design
View tableView in ArticleTable 1. Lifetime test results of gas spark switches with improved design
switch type total shots last status of switch ceramic package-1 0 ceramic body fractured before test ceramic package-2 155 463 flashover happened PMMA package-1 302 184 normal PMMA package-2 302 184 normal PMMA package-3 302 184 normal
Table 2. Variation of self-breakdown voltage of gas spark switches with improved design
View tableView in ArticleTable 2. Variation of self-breakdown voltage of gas spark switches with improved design
shot No. average voltage/kV standard deviation/kV average voltage/kV standard deviation/kV average voltage/kV standard deviation/kV average voltage/kV standard deviation/kV ceramic package-1# PMMA package-1# PMMA package-2# PMMA package-3# 000001～000010 90.6 1.2 89.6 1.4 90.4 1.0 90.0 1.2 100001～100010 92.2 1.6 91.4 1.4 93.4 0.8 92.4 1.2 200001～200010 − − 96.2 1.0 94.8 1.4 95.0 1.2 300001～300010 − − 98.2 1.6 99.0 1.2 99.4 1.5
Table 3. Delay time and jitter of gas spark switches in triggering experiments after lifetime test
View tableView in ArticleTable 3. Delay time and jitter of gas spark switches in triggering experiments after lifetime test
switch type delay time/ns jitter/ns PMMA package-1# 59.4 2.6 PMMA package-2# 55.3 2.1 PMMA package-3# 56.8 2.2
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Lin Chen, Lingyun Wang, Jie Wang, Jihao Jiang, Wenhui Han. Design and preliminary experiment of high power long lifetime gas spark switch[J]. High Power Laser and Particle Beams, 2024, 36(11): 115013
Paper Information
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Received: Sep. 12, 2024
Accepted: Oct. 17, 2024
Published Online: Jan. 8, 2025
The Author Email: Jie Wang (309925853@qq.com)
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