中能X光机触发系统

何安; 郭帆; 康军军; 夏明鹤; 丁瑜; 周良骥; 耿力东; 卫兵; 袁建强; 谢卫平

doi:10.11884/HPLPB202234.220170

中能X光机触发系统

doi: 10.11884/HPLPB202234.220170

何安^{1, 2,},
郭帆^{1, 2},
康军军^{1, 2},
夏明鹤^{1, 2},
丁瑜¹,
周良骥^{1, 2},
耿力东^{1, 2},
卫兵^{1, 2},
袁建强^{1, 2},
谢卫平^{1, 2}

1.
中国工程物理研究院流体物理研究所，四川绵阳 621900
2.
中物院脉冲功率科学与技术重点实验室，四川绵阳 621900

基金项目: 国家自然科学基金项目（51907181）

详细信息

作者简介:
何　安，hean66@tom.com

中图分类号: O56; TL503
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- 被引次数: 0
出版历程
- 收稿日期: 2022-05-24
- 修回日期: 2022-08-30
- 网络出版日期: 2022-08-31
- 刊出日期: 2022-09-20

Trigger system of the middle energy X-ray device

He An^{1, 2
,},
Guo Fan^{1, 2},
Kang Junjun^{1, 2},
Xia Minghe^{1, 2},
Ding Yu¹,
Zhou Liangji^{1, 2},
Geng Lidong^{1, 2},
Wei Bing^{1, 2},
Yuan Jianqiang^{1, 2},
Xie Weiping^{1, 2}

1.
Institute of Fluid Physics, CAEP, Mianyang 621900, China
2.
Key Laboratory of Pulsed Power, CAEP, Mianyang 621900, China

摘要

摘要: 介绍了中能X光机装置触发系统研制和相关实验结果，触发系统包括主机6个支路激光开关的触发和主机放电的触发。其中6个支路的触发由6台YAG四倍频激光器完成，主机放电电触发系统由1台YAG四倍频激光器来触发。实验结果表明：每台激光器出光时间抖动σ小于等于0.3 ns，激光开关导通延迟时间约25 ns，抖动σ小于等于1.2 ns，电触发系统中激光与触发器输出电压之间的时间抖动σ为0.5 ns，匹配负载上电压大于120 kV，前沿约28 ns，脉宽150 ns。中能X光机在杆箍缩二极管负载上获得最大输出为4.2 MV/100 kA的电脉冲，电压脉冲半高宽约55 ns，输出的X射线时间抖动σ为3.4 ns。实验结果表明触发系统具备对6个支路精确调节和控制的能力，确保了中能X光机装置的高可靠性。
- 激光触发开关 /
- 触发 /
- 时间抖动 /
- YAG激光器
Abstract: This paper introduces the trigger system of the middle energy X-ray device and experimental results. The trigger system controls triggering of laser-switches in six modules and the electric trigger part. Each switch is triggered by one laser. Seven lasers could be adjusted stand-alone. The test results show that the time jitter of laser was less than 0.3 ns and the time jitter of the laser-switch was less than 1.2 ns. For electric trigger system, the voltage of the matching load was 120 kV, the rising time was about 28 ns, the pulse width (FWHM) was 150 ns, and the time jitter was less than 0.5ns. The middle energy X-ray device could produce a maximum output voltage and current of about 4.2 MV /100 kA and the pulse width (FWHM) was 150 ns. The time jitter of X-ray was less than 3.4 ns in the middle energy X-ray device. The experimental results show that the trigger system was able to adjust the six modules accurately, which improves reliability of the middle energy X-ray device.
- laser trigger switch /
- trigger /
- time jitter /
- YAG laser

HTML全文

图 1 中能X光机装置技术路线示意图

Figure 1. Schematic diagram of the middle energy X-ray machine

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图 2 激光触发开关光路图

Figure 2. Path of the laser trigger switch

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图 3 光路管道和激光开关安装俯视图

Figure 3. Installation graph of laser tube and laser-switch

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图 4 电触发单元结构示意图

Figure 4. Layout of the electricity-trigger unit

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图 5 电触发单元和0号激光器实物图

Figure 5. Picture of the trigger unit and No.0-laser

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图 6 中能X光机触发控制时序图

Figure 6. Block diagram of triggering suquence for the middle energy X-ray device

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图 7 激光脉冲和触发器电压波形

Figure 7. Laser pulse and voltage waveform of trigger output

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图 8 中能X光机连续50发次实验输出X射线时间统计

Figure 8. Statistical delay time of the middle energy X-ray device for 50 consecutive shots

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