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Initial results on plasma heating experiments in the ion cyclotron range of frequencies on EAST

X.J. Zhang, Y.P. Zhao, B.N. Wan, X.Z. Gong, Y.Z. Mao, S. Yuan, D.Y. Xue, L. Wang, C.M. Qin, S.Q. Ju2012年被引用 27Nuclear FusionIF 3出版社

Plasma heating using fast waves was successfully performed on the Experimental Advanced Superconducting Tokamak (EAST) in the H minority regime in deuterium plasmas at 27 MHz and Bo = 2.0 T. With 1.0 MW of ion cyclotron range of frequency (ICRF) power injected at a line-averaged electron density of 4.0 × 1019 m−3, the electron temperature increased from 1.0 keV to above 2.0 keV and the loop voltage dropped. An increase in the stored energy by 30 kJ was obtained. The first H-mode plasma of 6.4 s was achieved with a combination of lower hybrid wave and ICRF heating. Density pump-out was observed during L-mode discharges at a high electron density of 4.0 × 1019 m−3. In these discharges, re-attachment of the plasma was observed when ICRF power was applied.

日本語訳

高速波を用いたプラズマ加熱は、実験先進超伝導トカマク(EAST)において、重水素プラズマ中のHマイノリティ領域で、27 MHzおよびBo = 2.0 Tで成功裏に実施された。線平均電子密度4.0 × 10^19 m^-3で注入された1.0 MWのイオンサイクロトロン周波数帯(ICRF)パワーにより、電子温度は1.0 keVから2.0 keV以上に上昇し、ループ電圧は低下した。蓄積エネルギーの30 kJの増加が得られた。6.4秒の最初のHモードプラズマは、低混成波とICRF加熱の組み合わせにより達成された。高電子密度4.0 × 10^19 m^-3でのLモード放電中に、密度ポンプアウトが観測された。これらの放電では、ICRFパワーが印加されたときにプラズマの再付着が観測された。

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