Abstract In this paper, the finite difference method is used to develop the Fortran software MCHII. The physical process in which the electromagnetic signal is generated by the interaction of nuclear-explosion-induced Compton currents with the geomagnetic field is numerically simulated. The electromagnetic pulse waveforms below the burst point are investigated. The effects of the height of burst, yield and the time-dependence of γ-rays are calculated by using the MCHII code. The results agree well with those obtained by using the code CHAP.
Received: 14 April 2003
Revised: 26 June 2003
Accepted manuscript online:
Meng Cui (孟萃), Chen Yu-Sheng (陈雨生), Liu Shun-Kun (刘顺坤), Xie Qin-Chuan (谢秦川), Chen Xiang-Yue (陈向跃), Gong Jian-Cheng (龚建成) Numerical simulation of the early-time high altitude electromagnetic pulse 2003 Chinese Physics 12 1378
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