PIC-MCC Investigation on the Influences of Gas Medium and Flashover on the Multipacting Cathode Operation

Ye Dong,Qingxiang Liu,Wenyuan Yang,Haijing Zhou,Zhiwei Dong

IEEE Transactions on Plasma Science（2021）

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摘要

In this article, the influences of outgassing and flashover on the performance of a novel multipacting cathode are numerically investigated by using particle in cell-Monte Carlo collision (PIC-MCC) method, including the conditions of weak, medium, and strong outgassing. The numerical results demonstrate that under the condition of weak outgassing (0.1 Torr), multipacting is hardly influenced by ga...

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关键词

Cathodes,Surface treatment,Ionization,Current density,Hydrogen,Surface roughness,Rough surfaces

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