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Plasma ion temperature measurement from Balmer alpha charge-exchange radiation during neutral injection

G.A. Cottrell1983年被引用 19Nuclear FusionIF 3出版社

Measurements are presented of Balmer alpha line profiles from plasma ions which have been neutralized by charge exchange with injected neutral hydrogen beams in the DITE tokamak. Doppler broadening of the Hα line is interpreted in terms of the ion temperature and line profiles are compared with neutral particle energy spectra in the regime where the plasma is transparent to the transport of neutrals from the core to the boundary. An asymmetry in the charge-exchange line profile is interpreted in terms of plasma rotation during neutral beam injection. The advantage of this method over conventional neutral analysis is seen in the context of the diagnosis of large, hot and dense tokamak plasmas.

日本語訳

DITEトカマクにおいて、注入された中性水素ビームとの電荷交換によって中性化されたプラズマイオンからのバルマーα線プロファイルの測定結果を示す。Hα線のドップラー広がりはイオン温度の観点から解釈され、線プロファイルは、コアから境界への中性粒子の輸送に対してプラズマが透明である領域における中性粒子エネルギースペクトルと比較される。電荷交換線プロファイルにおける非対称性は、中性ビーム入射中のプラズマ回転の観点から解釈される。この方法の従来の中性粒子解析に対する利点は、大型で高温かつ高密度のトカマクプラズマの診断において明らかである。

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