Plasma and Fusion Research

Volume 16, 1401103 (2021)

Regular Articles

Particle Simulation of Controlling Particle and Heat Flux by Magnetic Field
Trang LE1), Yasuhiro SUZUKI2), Hiroki HASEGAWA1,3), Toseo MORITAKA1,3) and Hiroaki OHTANI1,3)
1)
The Graduate University for Advanced Studies, SOKENDAI, Toki, Gifu 509-5292, Japan
2)
Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8527, Japan
3)
National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
(Received 11 May 2021 / Accepted 20 October 2021 / Published 25 November 2021)

Abstract

An idea for shielding high energy ion and electron fluxes is proposed by applying external magnetic fields. In this work, we model a flowing plasma in a small region by utilizing one spatial dimension and three coordinates for velocities (1D3V) Particle-In-Cell (PIC) code. The plasma which consists of ion and electron is produced from the source region and absorbed at the conductor wall. The external magnetic field is modified by applying the change of the magnetic field in the direction perpendicular to the plasma flow. This magnetic field is localized and switched from strong negative values to strong positive values at several locations in the simulation region. We found that this localized reversed magnetic field traps the particles, and then reduces the particle and heat fluxes to the wall. Based on the modeling results, external localized-reversed magnetic fields can control the particle and heat fluxes to the wall. These results can be applied for shielding high energy ion and electron fluxes to the satellite or spacecraft in the space.

Keywords

Particle-in-Cell, particle flux, energy flux, localized magnetic field

DOI: 10.1585/pfr.16.1401103

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