Physical modeling and particle simulation technology of multi-pulse MILO cathode outgassing ionization

Yang Yulin; Dong Zhiwei; Sun Huifang; Yang Wenyuan; Zhang Fang

doi:10.11884/HPLPB202133.210121

Volume 33 Issue 9

Sep. 2021

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Yang Yulin, Dong Zhiwei, Sun Huifang, et al. Physical modeling and particle simulation technology of multi-pulse MILO cathode outgassing ionization[J]. High Power Laser and Particle Beams, 2021, 33: 093004. doi: 10.11884/HPLPB202133.210121

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Physical modeling and particle simulation technology of multi-pulse MILO cathode outgassing ionization

doi: 10.11884/HPLPB202133.210121

Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

Received Date: 2021-03-30
Rev Recd Date: 2021-06-23

Available Online: 2021-07-21

Publish Date: 2021-09-15

Abstract

Abstract

The commutation phenomena produced by cathode outgassing ionization is a possible factor to limit work performance of magnetically insulated transmission line oscillator (MILO), and also is the main obstacle to limit its repeat frequency. In this paper, physical modeling technology of MILO cathode outgassing ionization phenomena and three-dimensional particle simulation are presented. The relation between remaining gas of previous outgassing and pulse duration is analyzed. When the number of positive ions is greater than that of electrons the plasma caused by the ionization will rapidly reduce microwave output power.
- magnetically insulated transmission line oscillator,
- outgassing,
- electron impact excitation,
- ionization

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