Spatial charge and compensation method in a whirler

Zhenyu WANG (王振宇); Binhao JIANG (江滨浩); Yuming YAN (严禹明); Hailong ZHAO (赵海龙); N A STROKIN

doi:10.1088/2058-6272/aa59f4

Plasma Science and Technology > 2017 > 19(5): 55507-055507. > DOI: 10.1088/2058-6272/aa59f4

Zhenyu WANG (王振宇), Binhao JIANG (江滨浩), Yuming YAN (严禹明), Hailong ZHAO (赵海龙), N A STROKIN. Spatial charge and compensation method in a whirler[J]. Plasma Science and Technology, 2017, 19(5): 55507-055507. DOI: 10.1088/2058-6272/aa59f4

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Spatial charge and compensation method in a whirler

1 Department of Electrical Engineering, Harbin Institute of Technology, Harbin 15000l, People’s Republic of China 2 Irkutsk State Technical University, Irkutsk, 664074, Russia

Funds: This work was supported by National Natural Science Foundation of China (No. 51177020).

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Received Date: September 24, 2016

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Abstract

Abstract

Based on particle-in-cell simulation, we studied the motions of ions and electrons. The results have shown that electrons are bounded by a magnetic field and only a small number of electrons can pass through the whirler channel. The plasma becomes non-neutral when it is emitted from the whirler, and the spatial charge leads to a beam divergence, which is unfavorable for mass separation. In order to compensate the spatial charge, a cathode is designed to transmit electrons and the quasi-neutral plasma beam. Experiment results have demonstrated that the auxiliary cathode can obviously improve the compensation degree of the spatial charge.
- plasma mass separator,
- whirler,
- spatial charge,
- compensation method,
- PIC

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References (15)

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