Simulation study of external system generated electromagnetic pulse in low pressure air or plasma

Sun Huifang; Zhang Lingyu; Dong Zhiwei; Zhou Haijing

doi:10.11884/HPLPB202335.220211

Volume 35 Issue 5

Apr. 2023

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Sun Huifang, Zhang Lingyu, Dong Zhiwei, et al. Simulation study of external system generated electromagnetic pulse in low pressure air or plasma[J]. High Power Laser and Particle Beams, 2023, 35: 053005. doi: 10.11884/HPLPB202335.220211

Citation:

Sun Huifang, Zhang Lingyu, Dong Zhiwei, et al. Simulation study of external system generated electromagnetic pulse in low pressure air or plasma[J]. High Power Laser and Particle Beams, 2023, 35: 053005. doi: 10.11884/HPLPB202335.220211

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Simulation study of external system generated electromagnetic pulse in low pressure air or plasma

doi: 10.11884/HPLPB202335.220211

Institute of Applied Physics and Computational Mathematics, P. O Box 8009, Beijing 100094, China

Received Date: 2022-07-03
Accepted Date: 2022-11-18
Rev Recd Date: 2022-09-24

Available Online: 2022-11-22

Publish Date: 2023-04-07

Abstract

Abstract

For examining effects of atmosphere on system generated electromagnetic pulse (SGEMP), the external SGEMP are simulated by the 3D PIC code in pre-ionized plasma and by the PIC-MCC code in low pressure air respectively in the X-ray energy deposition region (50 km to 100 km). For three fluences of X-ray (4×10⁻³ J/cm²、4×10⁻² J/cm²、0.4 J/cm²), the simulations are done in pre-ionized plasma corresponding to two different altitudes (70 km and 80−90 km) and low pressure air corresponding to 56 km altitude each other, and the results are compared with those in vacuum. The variation laws of external SGEMP in pre-ionized plasma and low pressure air are received : the effects have relation to fluence of X-ray, when the fluence of X-ray is low, the magnetic field increases and the electric field decreases in the plasma environment, while the variations of external SGEMP are not obvious in low pressure air; with the fluence of X-ray increasing, the space charge nonlinear effects become more and more obvious, the electric field and magnetic field are enhanced together in both pre-ionized plasma and low pressure air, and the enhancement effects are more significant in low pressure air.
- PIC code,
- system generated electromagnetic pulse,
- photoelectron,
- secondary electron

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References(10)

References

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