| 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
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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.
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