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Spontaneous improvement of TJ-II plasmas confinement

I García-Cortés, D López-Bruna, F L Tabarés, T Estrada, F Medina, the TJ-II Team2002年Plasma Physics and Controlled FusionIF 2.2出版社

Spontaneous improvements in particle and energy confinement have been observed in TJ-II plasmas with ≈300 kW of electron cyclotron resonance heating. Density and temperature profiles broaden giving rise to energy content enhancement up to a factor of 1.4. The transport analysis on one of these discharges describes the evolution of the profiles via a sudden reduction (∼50%) of the thermal and particle diffusivities inside the main plasma. A brief comparison with transition phenomena in other devices is given.

日本語訳

TJ-IIプラズマにおいて、約300kWの電子サイクロトロン共鳴加熱を用いた場合に、粒子閉じ込めとエネルギー閉じ込めの自発的な改善が観測された。密度および温度プロファイルは広がりを示し、エネルギー含有量は最大1.4倍に向上する。これらの放電の1つにおける輸送解析は、主プラズマ内部での熱および粒子拡散係数の急激な減少(約50%)を介したプロファイルの時間発展を示している。他の装置における遷移現象との簡単な比較も行う。

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