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Modelling the measured local time evolution of strongly nonlinear heat pulses in the Large Helical Device

R O Dendy, S C Chapman, S Inagaki2013年Plasma Physics and Controlled FusionIF 2.2出版社

In some magnetically confined plasmas, an applied pulse of rapid edge cooling can trigger either a positive or negative excursion in the core electron temperature from its steady state value. We present a new model which captures the time evolution of the transient, non-diffusive local dynamics in the core plasma. We show quantitative agreement between this model and recent spatially localized measurements (Inagaki et al 2010 Plasma Phys. Control. Fusion52 075002) of the local time-evolving temperature pulse in cold pulse propagation experiments in the Large Helical Device.

日本語訳

磁気閉じ込めプラズマにおいて、急速な周辺部冷却のパルスを印加すると、コア電子温度が定常値から正または負の方向に偏差を生じることがある。本論文では、コアプラズマにおける過渡的かつ非拡散的な局所ダイナミクスの時間発展を記述する新しいモデルを提示する。さらに、このモデルと、大型ヘリカル装置における冷パルス伝播実験で観測された局所的な時間発展温度パルスの空間分解測定(稲垣ら、2010年、Plasma Phys. Control. Fusion 52 075002)との間に定量的な一致が得られることを示す。

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