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A profile constraint and the value of beta in tokamak experiments

S E Segre, V Zanza1992年Plasma Physics and Controlled FusionIF 2.2出版社

The profile constraint, resulting from the poloidal Ohm's law, is used to derive a relationship between the normalized energy content (toroidal beta) and the normalized plasma current (1/q) for tokamak discharges. This relationship depends on the plasma fuelling, (gas puffing and neutral beam injection are considered) and is independent of energy balance. Good agreement is found with a wide range of experiments, both gas fuelled and neutral beam fuelled, when use is made of the extended neoclassical theory (which assumes an anomalous electron-electron collision rate but a Coulomb electron-iron collision rate).

日本語訳

ポロイダル・オームの法則から得られるプロファイル制約を用いて、トカマク放電における規格化エネルギー含有量(トロイダルベータ)と規格化プラズマ電流(1/q)との関係を導出する。この関係はプラズマ燃料供給に依存し(ガス入射および中性粒子ビーム入射を考慮する)、エネルギー収支には依存しない。拡張新古典理論(異常電子-電子衝突率とクーロン電子-イオン衝突率を仮定する)を用いると、ガス入射および中性粒子ビーム入射の両方の広範な実験と良好な一致が得られる。

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