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Heavy-impurity transport in the TFR tokamak – comparison of line emission with numerical simulations

TFR Group1983年被引用 40Nuclear FusionIF 3出版社

Heavy-element ion line emissions are simulated with a numerical code using two adjustable, radius-independent, parameters in the flux density expression: an anomalous diffusion coefficient DA and an inward convective velocity VA. Previously reported results on the laser blow-off injection of V, Cr, and Ni are, thus, interpreted. The quasi-stationary phase of Ohmically heated high-density (ne(0) ≈ 1.5 × 1014 cm−3) discharges is also simulated, thus allowing the plasma impurity content and the radiated power to be calculated. The necessary numerical values of DA and VA are in the range of 2000–4000 cm2·s−1 and 400–800 cm·s−1, respectively.

日本語訳

重イオン線放射は、フラックス密度式において2つの半径非依存パラメータ、すなわち異常拡散係数DAと内向き対流速度VAを用いる数値コードによってシミュレートされる。これにより、V、Ni、Crのレーザーブローオフ入射に関する既報の結果が解釈される。また、オーミック加熱された高密度(ne(0) ≈ 1.5 × 10¹⁴ cm⁻³)放電の準定常位相もシミュレートされ、これによりプラズマ不純物含有量と放射パワーを計算することが可能となる。必要なDAおよびVAの数値範囲は、それぞれ2000〜4000 cm²·s⁻¹および400〜800 cm·s⁻¹である。

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ImpurityImpurity transportTFR
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