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Toroidal rotation of hydrogen in the RTP tokamak

R M Gravestijn, F G Meijer, the RTP team2002年Plasma Physics and Controlled FusionIF 2.2出版社

With a high resolution visible light spectrometer the Hα emission at the RTP tokamak has been studied. Monitoring the Hα line (6562.8 Å) with a toroidal line of sight into the plasma shows spectra with intricate Hα line structures. These line profiles can be explained by the occurrence of three different velocity groups of excited hydrogen with relative line shifts of the order of 2 Å. The origin of these three groups results from collisional processes with species of hydrogen, namely neutral hydrogen, H+ and also H2+ molecules.

日本語訳

高分解能可視光分光器を用いて、RTPトカマクにおけるHα発光を研究した。プラズマへのトロイダル方向の視線でHα線(6562.8 Å)をモニタリングすると、複雑な構造を持つHα線プロファイルが観測される。これらの線プロファイルは、相対的な線シフトが約2 Åの3つの異なる速度群の励起水素の存在によって説明できる。これら3つの群の起源は、水素種、すなわち中性水素、H⁺、およびH₂⁺分子との衝突過程に由来する。

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