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基于PFN-Marx技术的200 keV脉冲X射线源设计与实验

耿力东 谢卫平 羊强 袁建强 刘宏伟 曹龙博 韩文辉

耿力东, 谢卫平, 羊强, 等. 基于PFN-Marx技术的200 keV脉冲X射线源设计与实验[J]. 强激光与粒子束, 2022, 34: 085002. doi: 10.11884/HPLPB202234.210573
引用本文: 耿力东, 谢卫平, 羊强, 等. 基于PFN-Marx技术的200 keV脉冲X射线源设计与实验[J]. 强激光与粒子束, 2022, 34: 085002. doi: 10.11884/HPLPB202234.210573
Geng Lidong, Xie Weiping, Yang Qiang, et al. Design and experiments of the 200 keV pulse X-ray source based on PFN-Marx technology[J]. High Power Laser and Particle Beams, 2022, 34: 085002. doi: 10.11884/HPLPB202234.210573
Citation: Geng Lidong, Xie Weiping, Yang Qiang, et al. Design and experiments of the 200 keV pulse X-ray source based on PFN-Marx technology[J]. High Power Laser and Particle Beams, 2022, 34: 085002. doi: 10.11884/HPLPB202234.210573

基于PFN-Marx技术的200 keV脉冲X射线源设计与实验

doi: 10.11884/HPLPB202234.210573
基金项目: 中国工程物理研究院流体物理研究所规划发展项目(TCGH025210)
详细信息
    作者简介:

    耿力东,glidong809@126.com

  • 中图分类号: TN14

Design and experiments of the 200 keV pulse X-ray source based on PFN-Marx technology

  • 摘要: 基于PFN-Marx技术路线研制了200 kV脉冲驱动源,采用了超前触发技术,实现了在40 Ω水电阻负载上输出电压约200 kV、前沿约25 ns、脉冲宽度约62 ns的脉冲高压。设计了工作电压为200 kV的“Washer-Needle”型二极管,在二极管电压210 kV、电流5 kA条件下,输出X射线脉冲宽度约40 ns,X射线焦斑直径1.2 mm,1 m处照射剂量约15 mR。
  • 图  1  驱动源示意图

    Figure  1.  Schematic of the pulsed power source

    图  2  仿真模型和结果

    Figure  2.  The model and result of the simulation

    图  3  脉冲驱动源装置

    Figure  3.  The device for pulsed power

    图  4  水电负载实验结果

    Figure  4.  The experimental results for the water resistance

    图  5  “Washer-Needle二极管结构”

    Figure  5.  Schematic of the “Washer-Needle” structure

    图  6  200 keV脉冲X射线源装置及实验结果

    Figure  6.  The experimental device and the expereimental results of soft X-ray

    图  7  焦斑测试结果

    Figure  7.  The result of the X-ray spot size

    图  8  抖动实验结果

    Figure  8.  The exprimental result of the jitter

    表  1  脉冲驱动源实验

    Table  1.   The experiment of the pulsed power source

    shotcharge voltage/kVload voltage/kVrise time/nspulse width/ns
    1±31205.62165
    2±30202.91963
    3±30191.72161
    4±30191.72061
    5±31224.32060
    6±30192.32064
    7±312031964
    8±30192.22062
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-12-24
  • 修回日期:  2022-04-07
  • 录用日期:  2022-05-26
  • 网络出版日期:  2022-05-30
  • 刊出日期:  2022-07-20

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