Simulation of long-range transport of non-ideal hydrogen atom beams in vacuum environment

Shi Junjie; Hao Jianhong; Zhang Fang; Zhao Qiang; Fan Jieqing; Shen Shuo; Dong Zhiwei

doi:10.11884/HPLPB202234.220123

Volume 34 Issue 12

Nov. 2022

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Shi Junjie, Hao Jianhong, Zhang Fang, et al. Simulation of long-range transport of non-ideal hydrogen atom beams in vacuum environment[J]. High Power Laser and Particle Beams, 2022, 34: 124004. doi: 10.11884/HPLPB202234.220123

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Shi Junjie, Hao Jianhong, Zhang Fang, et al. Simulation of long-range transport of non-ideal hydrogen atom beams in vacuum environment[J]. High Power Laser and Particle Beams, 2022, 34: 124004. doi: 10.11884/HPLPB202234.220123

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Simulation of long-range transport of non-ideal hydrogen atom beams in vacuum environment

doi: 10.11884/HPLPB202234.220123

1.
School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China
2.
Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

Received Date: 2022-04-25
Accepted Date: 2022-09-01
Rev Recd Date: 2022-08-29

Available Online: 2022-11-02

Publish Date: 2022-11-02

Abstract

Abstract

Neutral beam has potential applications in space debris cleanup and space exploration. As that neutral beam prepared by ion source is not ideal in practice, this paper simulates the long-range transmission effect of non-ideal hydrogen beam in vacuum environment. According to the degree of neutralization, non-ideal beams are divided into under-neutral beams and over-neutral beams. The effects of beam density, neutralization factor, spatial magnetic field and elastic scattering on the nonideal hydrogen beam are studied by establishing a quasi-electromagnetic model of beam transmission. The results show that the presence of negative hydrogen ions has no effect on the transmission of hydrogen atoms in the under-neutral beam, thus the bias magnetic field can be removed to reduce the volume and mass of the device. For the over-neutral beam, the loss ratio is related to the beam density and neutralization factor, that is, the higher the beam density, the greater the beam loss; the higher the neutralization factor, the higher the beam loss. The magnetic field and the elastic scattering between particles have no effect on the propagation of either the under-neutral or over-neutral beams.
- non-ideal beam,
- long-range transmission,
- beam current density,
- neutralization factor,
- beam loss ratio

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References(18)

References

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