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TFR discharges with low metal impurity radiation level

C Breton, C De Michelis, W Hecq, M Mattioli, J Ramette, B Saoutic1985年Plasma Physics and Controlled FusionIF 2.2出版社

Metal impurity (Ni, Fe, Cr) line emission from TFR plasmas with graphite limiters has been studied during both the ohmic heating phase and supplementary heatings (either neutral beam injection or ion-cyclotron resonance heating). The experimental results have been compared with the predictions of an impurity transport numerical simulation code. It has thus been possible to evaluate the central metal ion density the central radiated power density, and the total radiated power. It is concluded that, at the present time, metal impurity radiation losses can be neglected in the discharge power balance.

日本語訳

グラファイトリミターを備えたTFRプラズマからの金属不純物(Ni、Fe、Cr)の線発光を、オーミック加熱相および追加加熱(中性粒子ビーム入射またはイオンサイクロトロン共鳴加熱)の両方において研究した。実験結果は、不純物輸送の数値シミュレーションコードによる予測と比較された。これにより、中心部の金属イオン密度、中心部の放射パワー密度、および全放射パワーを評価することが可能となった。現時点では、金属不純物による放射損失は放電のパワーバランスにおいて無視できると結論付けられる。

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