2020/01/07 by Zhiqian Xu, Cui Meng, Yunsheng Jiang +1 · 1 citation
Engineering · Physics and Astronomy · #Electrostatic Discharge in Electronics #Gyrotron and Vacuum Electronics Research #Pulsed Power Technology Applications
paper · doi:10.1109/tns.2020.2963983
openalex publication_date 2020/01/07 · crossref created 2020/01/07 · crossref issued 2020/02/01 · crossref published 2020/02/01 · crossref published-print 2020/02/01 · crossref deposited 2022/04/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29 · crossref indexed 2026/07/30
A 3-D electromagnetic particle-in-cell simulation code 3Dcavitysgemp V1.0 is developed to compute the cavity System-Generated Electromagnetic Pulse (SGEMP) interference generated by pulsed X-rays. Discrete charge conservation theorem, conformal mesh technique, and time-biased algorithm are introduced to improve the calculation accuracy. Based on a cylinder cavity model, the 3-D results are verified by previous 2-D simulation and demonstrate the special distributions and resonant frequencies of cavity SGEMP. The peak value of cavity SGEMP main pulse is 72.88 kV/m. When farther away from the charge-emitting face, the field strength becomes smaller quickly and its polarity reverses; when the distance from the symmetry axis increases, the field strength declines relatively slower. Moreover, it is proven that the cavity SGEMP would form a stable resonance and its frequency is dominated by the radius and length of the cavity.