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真空强电磁场环境下铝的二次电子倍增规律

商圣飞 杨晓宁 杨勇 毕研强 武南开 于澜涛

商圣飞,杨晓宁,杨勇,等. 真空强电磁场环境下铝的二次电子倍增规律[J]. 北京航空航天大学学报,2023,49(7):1606-1613 doi: 10.13700/j.bh.1001-5965.2021.0514
引用本文: 商圣飞,杨晓宁,杨勇,等. 真空强电磁场环境下铝的二次电子倍增规律[J]. 北京航空航天大学学报,2023,49(7):1606-1613 doi: 10.13700/j.bh.1001-5965.2021.0514
SHANG S F,YANG X N,YANG Y,et al. Secondary electron multiplication of aluminum under strong vacuum electromagnetic field[J]. Journal of Beijing University of Aeronautics and Astronautics,2023,49(7):1606-1613 (in Chinese) doi: 10.13700/j.bh.1001-5965.2021.0514
Citation: SHANG S F,YANG X N,YANG Y,et al. Secondary electron multiplication of aluminum under strong vacuum electromagnetic field[J]. Journal of Beijing University of Aeronautics and Astronautics,2023,49(7):1606-1613 (in Chinese) doi: 10.13700/j.bh.1001-5965.2021.0514

真空强电磁场环境下铝的二次电子倍增规律

doi: 10.13700/j.bh.1001-5965.2021.0514
详细信息
    通讯作者:

    E-mail:shangshengfei@buaa.edu.cn

  • 中图分类号: O461;O462

Secondary electron multiplication of aluminum under strong vacuum electromagnetic field

More Information
  • 摘要:

    针对卫星表面受强电磁环境的影响导致的充放电问题,采用1D3V的粒子网格(PIC)方法对卫星表面铝材料在空间强电磁环境作用下的二次电子倍增作用规律进行研究。结果表明:星表铝材料在不同微波幅值、不同频率下的二次电子倍增效应存在“最易”倍增区间;二次电子倍增规律表现为在特定频率下,铝的二次电子倍增随着微波电场幅值的增大先增强后降低,表现出最佳倍增区间的效应;在特定幅值下,铝的二次电子倍增效应也会先增强后降低,但是整体表现出低频时倍增强,高频时抑制倍增的效应。

     

  • 图 1  典型二次电子发射系数曲线[25]

    Figure 1.  Typical secondary electron emission yield curves[25]

    图 2  电子数在微波作用下的演化理论模型校验

    Figure 2.  Verification of theoretical model for evolution of electron number evolution under presence of microwaves

    图 3  微波作用铝的模型示意图

    Figure 3.  Schematic diagram of model under microwave action on aluminum

    图 4  不同微波电场幅值下的空间电子数变化

    Figure 4.  Variation of electron number under different amplitude of microwave electric field

    图 5  不同微波电场幅值下的碰壁电子能量变化

    Figure 5.  Variation of wall-impingerment electron energy under different microwave electric field amplitude

    图 6  不同微波频率下的空间电子数变化

    Figure 6.  Variation of electron number at different microwave frequencies

    图 7  1 GHz微波频率与空间电子数振荡频率的关系

    Figure 7.  Relationship between 1 GHz microwave frequency and electron number oscillation

    图 8  不同微波频率下碰壁电子能量变化

    Figure 8.  Variation of electron energy at different microwave frequencies

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出版历程
  • 收稿日期:  2021-09-05
  • 录用日期:  2021-11-22
  • 网络出版日期:  2022-01-25
  • 整期出版日期:  2023-07-31

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