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高重复频率猝发多脉冲加载下交联聚苯乙烯真空沿面闪络特性

黄子平 李远 邓旭 李逢 李欣

黄子平, 李远, 邓旭, 等. 高重复频率猝发多脉冲加载下交联聚苯乙烯真空沿面闪络特性[J]. 强激光与粒子束, 2024, 36: 055015. doi: 10.11884/HPLPB202436.230337
引用本文: 黄子平, 李远, 邓旭, 等. 高重复频率猝发多脉冲加载下交联聚苯乙烯真空沿面闪络特性[J]. 强激光与粒子束, 2024, 36: 055015. doi: 10.11884/HPLPB202436.230337
Huang Ziping, Li Yuan, Deng Xu, et al. Vacuum surface flashover characteristics of cross-linked polystyrene under high repetition rate burst multi-pulse loading[J]. High Power Laser and Particle Beams, 2024, 36: 055015. doi: 10.11884/HPLPB202436.230337
Citation: Huang Ziping, Li Yuan, Deng Xu, et al. Vacuum surface flashover characteristics of cross-linked polystyrene under high repetition rate burst multi-pulse loading[J]. High Power Laser and Particle Beams, 2024, 36: 055015. doi: 10.11884/HPLPB202436.230337

高重复频率猝发多脉冲加载下交联聚苯乙烯真空沿面闪络特性

doi: 10.11884/HPLPB202436.230337
基金项目: 国家自然科学基金项目(12275255)
详细信息
    作者简介:

    黄子平,hzp106@caep.cn

  • 中图分类号: TL503.3

Vacuum surface flashover characteristics of cross-linked polystyrene under high repetition rate burst multi-pulse loading

  • 摘要: 基于高重复频率强流多脉冲加速器的应用需求,针对交联聚苯乙烯(XLPS)材料在猝发多脉冲下的真空沿面闪络特性开展了实验研究。采用放置于平板电极中的XLPS圆台样品,在脉宽120 ns的单个脉冲和间隔500 ns的三脉冲加载下开展了真空沿面闪络实验,通过对实验平台和实验规范的优化设计,有效提升了实验效率和数据有效性,观测到了样品发生真空沿面闪络前的试样电压顶降现象和前序脉冲闪络对后续脉冲的显著影响,获得了XLPS材料在相应条件下真空沿面闪络的统计数据。在实验基础上,对XLPS材料在高重复频率多脉冲加载下的真空沿面闪络特性进行了分析,为高重复频率多脉冲加速器的绝缘设计提供了实验依据。
  • 图  1  三脉冲真空沿面闪络实验布局图

    Figure  1.  Experimental layout of triple-pulse vacuum surface flashover

    图  2  典型单脉冲实验波形

    Figure  2.  Typical single-pulse experimental waveform

    图  3  沿面闪络实验步骤

    Figure  3.  Steps of surface flashover experiment

    图  4  单脉冲下不同厚度XLPS的真空沿面闪络电压和电场

    Figure  4.  Vacuum flashover voltage and electric strength of XLPS with different thickness under single pulse

    图  5  单脉冲和三脉冲加载下的XLPS真空沿面闪络电压

    Figure  5.  Vacuum flashover voltages of XLPS under single pulse and triple pulse loading

    图  6  较高试样电压下的脉冲顶降波形

    Figure  6.  Pulse top drop waveforms under higher sample voltage

    图  7  较低试样电压时的三脉冲波形

    Figure  7.  Three-pulse waveform at lower sample voltage

    图  8  较高试样电压时的三脉冲波形

    Figure  8.  Three-pulse waveform at higher sample voltage

    图  9  A脉冲闪络后的三脉冲波形

    Figure  9.  Three pulse waveform after pulse A flashover

    图  10  SEEA理论模型

    Figure  10.  Theoretical model of secondary electron emission avalanche

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出版历程
  • 收稿日期:  2023-09-28
  • 修回日期:  2023-12-31
  • 录用日期:  2023-12-31
  • 网络出版日期:  2024-01-15
  • 刊出日期:  2024-04-28

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