| 石墨型高能两电极气体开关 |
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| 引用本文： | 郭良福,李黎,赖贵友,林福昌,陈德怀,力一峥,李冬梅,栾永平.石墨型高能两电极气体开关[J].强激光与粒子束,2010,22(12). |
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| 作者姓名： | 郭良福 李黎 赖贵友 林福昌 陈德怀 力一峥 李冬梅 栾永平 |
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| 作者单位： | 1. 中国工程物理研究院 激光聚变研究中心, 四川 绵阳 6219001；2. 华中科技大学 电气与电子工程学院, 武汉 430074 |
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| 摘 要： | 为大型激光装置能源模块研制了一种采用石墨电极的两电极气体开关，阐述了石墨应用于高能两电极气体开关的技术关键，对气体开关中气体间隙的最优结构进行了电场强度分析。参考美国国家点火装置(NIF)能源模块中ST-300气体开关的已知参数，对研制成功的石墨型两电极开关进行了电气特性试验，证明了石墨型气体开关能够实现峰值电流达300 kA以上，单次转移电荷量100 C以上，寿命超过1 000次，满足1.2 MJ大型激光装置能源模块的工程技术要求。
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| 关 键 词： | 脉冲功率技术 气体开关 电极 转移电荷量 |
| 收稿时间： | 1900-01-01; |
High power graphite two-electrode spark gap switch |
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| Guo Liangfu,Li Li,Lai Guiyou,Lin Fuchang,Chen Dehuai,Li Yizheng,Li Dongmei,Luan Yongping.High power graphite two-electrode spark gap switch[J].High Power Laser and Particle Beams,2010,22(12). |
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| Authors: | Guo Liangfu Li Li Lai Guiyou Lin Fuchang Chen Dehuai Li Yizheng Li Dongmei Luan Yongping |
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| Institution: | 1. Research Center of Laser Fusion, CAEP, P. O.Box 919-988, Mianyang 621900, China;2. College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | Two-electrode spark gap switch is an important candidate for the switching element of huge high laser power supply systems. This paper presents the using condition and critical technology of graphite two-electrode spark gap switch. The electrical field strength simulation shows that the electrode shape which satisfies Borda profile could constitute the optimized spark gap. Referred to the known parameters about the ST-300 switch used in NIF, a series of electric tests have been done. The tests have proved that the graphite two-electrode spark gap switch can support 300 kA peak pulse current, with over 100 C transfer charge and over 1 000 shots of lifetime, therefore meeting the requirement of the 1.2 MJ huge laser power supply system. |
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| Keywords: | spark gap switch electrode transfer charge |
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