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Magnetized plasma–wall transition—consequences for wall sputtering and erosion

S Devaux, G Manfredi2008年Plasma Physics and Controlled FusionIF 2.2出版社

The ion distribution function in front of an absorbing wall is computed using a kinetic model. The ions' energy and angle of impact are of particular importance, as they determine the level of wall erosion and sputtering. Their dependence on the plasma parameters (magnitude and angle of incidence of the magnetic field, ion and electron temperatures, etc) is investigated in detail. We conclude that a magnetic field with grazing incidence and a low electron-to-ion temperature ratio have a beneficial effect, as far as wall erosion and sputtering are concerned.

日本語訳

吸収壁の前方におけるイオン分布関数は、運動論モデルを用いて計算される。イオンのエネルギーと入射角は、壁の侵食とスパッタリングの程度を決定するため、特に重要である。これらがプラズマパラメータ(磁場の大きさと入射角、イオン温度と電子温度など)に依存する様子が詳細に調べられる。磁場が斜入射する場合と電子温度に対するイオン温度の比が低い場合には、壁の侵食とスパッタリングの観点から有益であると結論付けられる。

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Magnetized plasma
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