3D Electromagnetic Particle-in-Cell Simulation of EMP Generated by Pulsed X-rays

Authors

  • Zhiqian Xu Department of Engineering Physics Tsinghua University Beijing, China
  • Cui Meng Department of Engineering Physics Tsinghua University Beijing, China

Keywords:

Cavity SGEMP, charge conservation, conformal mesh, PIC, X-rays

Abstract

Pulsed X-rays could cause significant cavity system-generated electromagnetic pulse (SGEMP) interference. A 3D electromagnetic particle-in-cell simulation approach is developed to calculate EMP generated inside a cylindrical cavity after X-ray illumination. The waveform, spatial distributions and resonant frequencies of cavity SGEMP are demonstrated by the computations. The peak value of cavity SGEMP main pulse is 72.88 kV/m. When farther away from the charge emitting face, the field strength decreases quickly and its polarity reverses; when the distance from symmetry axis increases, the field strength declines relatively slower. The cavity SGEMP would form a stable resonance and its frequency is dominated by the radius and length of cavity. The simulation method is verified and can be applied to the X-ray radiation hardness.

References

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Published

2020-11-07

How to Cite

Zhiqian Xu, & Cui Meng. (2020). 3D Electromagnetic Particle-in-Cell Simulation of EMP Generated by Pulsed X-rays. The Applied Computational Electromagnetics Society Journal (ACES), 35(11), 1400–1401. Retrieved from https://journals.riverpublishers.com/index.php/ACES/article/view/7603

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