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Luminescence growth measurement and toroidal drift study in tokamak ionization phase

T Sometani, K Suganuma, Y Mizuno1993年Plasma Physics and Controlled FusionIF 2.2出版社

The luminescence from excited helium atoms is measured on a small tokamak Hamana-T. The exponential growth rate of the luminescence is maximized when the resultant effect of the toroidal and the error field drifts of electrons is compensated by the optimum value Bvo of external vertical magnetic field. The error vertical magnetic field Bve and the equivalent vertical magnetic field Bvd, which yields the same displacement as the toroidal drift and is proportional to toroidal magnetic field Bt, are experimentally determined by the values of Bvo obtained with different values of Bt and electric field E. The field Bvd is approximately proportional to E1/2.

日本語訳

励起ヘリウム原子からの発光が、小型トカマク浜名において測定される。発光の指数成長率は、トロイダル方向および誤差磁場による電子のドリフトの合成効果が、外部垂直磁場の最適値Bvoによって補償されるときに最大化される。誤差垂直磁場Bveおよび等価垂直磁場Bvd(トロイダルドリフトと同じ変位をもたらし、トロイダル磁場Btに比例する)は、異なるBtおよび電場Eの値に対して得られたBvoの値から実験的に決定される。磁場BvdはE1/2にほぼ比例する。

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