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Plasma transport computations for high-beta plasmas with impurities and neutrals

G. Becker, D.F. Düchs1976年被引用 6Nuclear FusionIF 3出版社

The evolution of a high-ß plasma after the initial dynamic phase is described by a multifluid (electrons, hydrogenic ions, neutrals, and impurities) model for a belt-pinch configuration. The numerical results obtained from the model agree with experimental findings from th e Garching Belt Pinch II. The power balance i s dominated by radiation losses for impurity percentages of 1-3%. Neutrals play a role for plasma densities ≲ 1014 cm−3 . Energ y confinement times, and thus decay times for ß in the ms-range should be obtainable. An optimization is presente d for plasmas whose initial densities, temperatures, and impurity contents are produced by shock heating

日本語訳

高ベータプラズマの初期動的位相後の時間発展は、ベルトピンチ配位に対する多流体モデル(水素イオン、中性粒子、不純物を含む)によって記述される。このモデルから得られた数値結果は、ガルヒング・ベルトピンチIIの実験結果と一致する。パワーバランスは、不純物割合が1〜3%の場合、放射損失によって支配される。中性粒子は、プラズマ密度が≲10¹⁴ cm⁻³の場合に重要な役割を果たす。エネルギー閉じ込め時間、したがってミリ秒範囲でのベータ値の減衰時間が得られるべきである。衝撃加熱によって生成される初期密度、温度、および不純物含有量に対する最適化が提示される。

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