强激光与粒子束2012，Vol.24Issue(3)：643-646,4.DOI:10.3788/HPLPB20122403.0643
强光一号激光触发开关的触发系统
Trigger system of laser triggered gas switch on Qiangguang-Ⅰ accelerator
张信军 1吴坚 1张国伟 1吴撼宇 1王亮平 1曾正中1
作者信息
摘要
Abstract
The paper introduces the design and application of a trigger system for the 2 MV laser triggered gas switch (LTGS), which was designed as the main switch for Qiangguang- I accelerator. In this system, a 266 nm Nd; YAG laser was used, and a beam with a pulse energy of 80 mJ, a pulse width of 7 ns and a divergence angle of 0. 5 mrad was achieved when the laser was triggered. The two original trigger signals of this trigger system were generated from the trigger system of Qiangguang-I , and they were delayed by two DG535 generators, respectively. A laser beam was focused in the LTGS through the crossover tube at 200 ns before the maximum of the self-breakdown voltage. In experiments, the trigger system worked well when SF6 was filled in switch and the gas pressure was 0. 2 to 0. 3 Mpa, and the trigger jitter was 3. 86 ns at the gas pressure of 0. 3 Mpa.关键词
激光触发开关/多级多通道开关/触发/激光电离Key words
laser triggered gas switch/multi-stage multi-channel switch/trigger/laser ionization分类
信息技术与安全科学引用本文复制引用
张信军,吴坚,张国伟,吴撼宇,王亮平,曾正中..强光一号激光触发开关的触发系统[J].强激光与粒子束,2012,24(3):643-646,4.
