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LTD单路验证装置电流测量

卫兵 王杰 李远 李逢 陈林 周良骥 郭帆 袁建强

卫兵, 王杰, 李远, 等. LTD单路验证装置电流测量[J]. 强激光与粒子束, 2022, 34: 075007. doi: 10.11884/HPLPB202234.210519
引用本文: 卫兵, 王杰, 李远, 等. LTD单路验证装置电流测量[J]. 强激光与粒子束, 2022, 34: 075007. doi: 10.11884/HPLPB202234.210519
Wei Bing, Wang Jie, Li Yuan, et al. Current measurement for LTD single branch verification device[J]. High Power Laser and Particle Beams, 2022, 34: 075007. doi: 10.11884/HPLPB202234.210519
Citation: Wei Bing, Wang Jie, Li Yuan, et al. Current measurement for LTD single branch verification device[J]. High Power Laser and Particle Beams, 2022, 34: 075007. doi: 10.11884/HPLPB202234.210519

LTD单路验证装置电流测量

doi: 10.11884/HPLPB202234.210519
基金项目: 国家自然科学基金项目(51907181,51977201);中国工程物理研究院创新基金创新项目(CX2019005)
详细信息
    作者简介:

    卫 兵,73wb@163.com

  • 中图分类号: TM835.4

Current measurement for LTD single branch verification device

  • 摘要: 为测量LTD单路验证装置的过渡段与出口电流,设计和标定了B-dot电流探头。采用径向传输线对电流探头进行了线下标定,并开展相应验证实验证实了标定的有效性。实验表明:探头安装深度和角度误差导致的探头灵敏度偏差约为1%; 当阴阳极间距大于探头孔直径时,B-dot标定结果基本不受阴阳极间距的影响;对于本装置涉及的直径较大的同轴线,用径向线模拟标定结果是有效的。从LTD单路验证装置的实验结果可知,4个过渡段至出口的阳极电流有轻微的损失,而阴极电流逐步减小。
  • 图  1  电流探头布局

    Figure  1.  Position of LTD current monitors

    图  2  探头结构

    Figure  2.  Structure of monitor

    图  3  B-dot频响测试连线示意图

    Figure  3.  Diagram of B-dot frequency response test

    图  4  电流探头的幅频响应特性

    Figure  4.  Amplitude-frequency response of B-dot

    图  5  转换纵坐标后的响应特性

    Figure  5.  Response of B-dot after y-axis is transformed

    图  6  标定径向线结构示意图

    Figure  6.  Structure diagram of radial line for calibration

    图  7  B-dot标定波形

    Figure  7.  Calibration waveform of B-dot

    图  8  B-dot灵敏度与深度的关系

    Figure  8.  Relation diagram between B-dot sensitivity and depth

    图  9  改变阴阳极间隙的径向线结构图

    Figure  9.  Structure diagram of radial line for changing the gap between the anode and the cathode

    图  10  阴阳极间距与B-dot灵敏度的关系

    Figure  10.  Relation diagram between anode-cathode spacing and B-dot sensitivity

    图  11  Ia1位置4个电流探头的测量结果

    Figure  11.  Current waveforms of 4 probes at Ia1

    图  12  I1位置的阴阳极电流波形

    Figure  12.  Current waveform of anode and cathode at I1

    图  13  I5位置的阴阳极电流波形

    Figure  13.  Current waveform of anode and cathode at I5

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出版历程
  • 收稿日期:  2021-11-25
  • 修回日期:  2022-04-19
  • 录用日期:  2022-04-22
  • 网络出版日期:  2022-04-27
  • 刊出日期:  2022-05-12

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