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Global carbon production and transport in Tore Supra

S J Tobin, J T Hogan, C DeMichelis, C C Klepper, M Mattioli, P Monier-Garbet, D Guilhem, W R Hess, R C Isler1996年Plasma Physics and Controlled FusionIF 2.2出版社

Impurity production and transport have been studied in small Tore Supra plasmas, for which the sole source of impurities (essentially carbon) is an outboard limiter. The main diagnostic was a visible endoscope, allowing absolute intensity calibrated CCD camera images of the entire limiter to be obtained at selected wavelengths. The experimental results show that, while chemical sputtering is essential to explain the limiter images, it does not contribute much to the central impurity content (for which physical sputtering is more important). The experimental edge carbon fluxes and the core plasma carbon content were simulated by coupling the 3D Monte Carlo edge impurity code BBQ with the 1D Tore Supra core impurity transport code, thus modelling (for the first time) the global impurity production and transport.

日本語訳

不純物の生成と輸送は、小型のTore Supraプラズマにおいて研究されており、そこでは不純物(主に炭素)の唯一の供給源が外部リミッターである。主な診断装置は可視光内視鏡であり、選択された波長においてリミッター全体の絶対強度較正されたCCDカメラ画像を取得することを可能にする。実験結果は、化学スパッタリングがリミッター画像を説明するために不可欠である一方、中心不純物含有量にはほとんど寄与せず、物理スパッタリングが中心部の不純物蓄積の主な供給源であることを示している。実験で得られた周辺部の炭素フラックスと中心部の炭素含有量は、3次元の周辺部不純物輸送コードBBQと1次元のコア不純物輸送コードを結合することによってモデル化され、これにより初めて全球的な不純物生成と輸送のモデル化が達成された。

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Tore Supra
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