Avoiding ignitron prefire with a coaxial structure
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li yi-zheng,
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guo liang-fu,
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jiang xue-jun,
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zheng wan-guo,
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chen de-huai,
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lin dong-hui,
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luan yong-ping,
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li dong-mei,
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yu hai-wu,
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zhou pi-zhang,
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peng han-sheng
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Abstract
This paper analyzes the mechanism that ignitron prefires when it is used in new discharge circuit of power conditioning system for high power laser. The performance of ignitron is improved with a coaxial structure. The coaxial structure not only controls discharge current flowing through the center of ignitron but also shields the electric field produced by the ignitron. The ignitrons have successfully run over 2 000 shots in 4×2×3 amplifier system without prefire.
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