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Peculiarities of electrode biasing experiments on the T-10 tokamak in regimes with Ohmic and ECR heating

G S Kirnev, V P Budaev, M M Dremin, E V Gerasimov, S A Grashin, L N Khimchenko, S V Krilov, Yu D Pavlov, D A Shelukhin, S V Soldatov2003年Plasma Physics and Controlled FusionIF 2.2出版社

Two types of electrode biasing H-mode were observed on the T-10 tokamak in regimes with electron–cyclotron resonant heating (ECRH). These types differ mainly by the dynamics of the electron temperature. Both types are characterized by a strong (130 V cm−1) radial electric field formation, a decrease of Dα emission intensity, a rise of line-average plasma density and an increase in energy confinement time. However, distinguishing features of the type II H-mode are a time delay of 70–80 ms in the electron temperature growth, a slower increase of the plasma density, and a weak drop of Dα intensity. The differences between the two types of biased H-mode are likely to be connected with the conditioning of the vacuum chamber.

日本語訳

2種類の電極バイアスHモードが、電子サイクロトロン共鳴加熱(ECRH)を用いたT-10トカマクにおいて観測された。これらのタイプは主に電子温度の動力学において異なる。両タイプとも、強い(130 V cm⁻¹)径方向電場の形成、Dα発光強度の減少、線平均プラズマ密度の上昇、およびエネルギー閉じ込め時間の増加によって特徴づけられる。しかしながら、タイプII Hモードの特徴的な相違点は、電子温度上昇における70~80 msの時間遅延、プラズマ密度上昇の緩慢さ、およびDα強度の弱い低下である。2種類のバイアスHモード間の差異は、真空容器のコンディショニングに関連している可能性が高い。

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Electron cyclotron resonanceOhmic heating
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