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

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

商圣飞^{1, 2, ,},
杨晓宁^{1, 2},
杨勇^{1, 2},
毕研强¹,
武南开¹,
于澜涛¹

1.
北京卫星环境工程研究所，北京 100094
2.
可靠性与环境工程技术重点实验室，北京 100094

详细信息

通讯作者:
E-mail：shangshengfei@buaa.edu.cn

中图分类号: O461；O462
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- PDF下载量: 10
- 被引次数: 0
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

Secondary electron multiplication of aluminum under strong vacuum electromagnetic field

SHANG Shengfei^{1, 2
, ,},
YANG Xiaoning^{1, 2},
YANG Yong^{1, 2},
BI Yanqiang¹,
WU Nankai¹,
YU Lantao¹

1.
Beijing Institute of Spacecraft Environment Engineering，Beijing 100094，China
2.
National key Laboratory of Science and Technology on Reliability and Environmental Engineering，Beijing 100094，China

More Information

Corresponding author: E-mail：shangshengfei@buaa.edu.cn

摘要

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。
- 高功率微波 /
- 空间电磁环境 /
- 星表材料 /
- 二次电子倍增 /
- 放电
Abstract:
This paper primarily employs the 1D3V particle-in-cell (PIC) method to investigate the rule of multifactor of aluminum material on satellite surface under the strong electromagnetic environment of space in order to study the charge and discharge effect brought on by the strong electromagnetic environment on the satellite surface. The result shows that there is an "easiest" multiplication range for the multifactor effect of aluminum materials under different microwave amplitudes and frequencies. The multifactor rules are: At a specific frequency, the multifactor of aluminum first increases and then decreases with the rising of microwave electric field amplitude, and there is an optimal secondary electron multiplication interval; At a certain amplitude, the multifactor effect of aluminum will first increase and then decrease, and it shows that the multifactor effect should be strong at low frequency and inhibited at high frequency.
- high power microwave /
- space electromagnetic environment /
- satellite catalogue materials /
- multifactor /
- discharge

HTML全文

图 1 典型二次电子发射系数曲线^[25]

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

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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

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图 3 微波作用铝的模型示意图

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

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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

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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

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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

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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

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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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