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Recent advances in the HL-2A tokamak experiments

Y. Liu, X.T. Ding, Q.W. Yang, L.W. Yan, D.Q. Liu, W.M. Xuan, L.Y. Chen, X.M. Song, Z. Cao, J.H. Zhang2005年被引用 61Nuclear FusionIF 3出版社

Two experiment campaigns were conducted on the HL-2A tokamak in 2003 and 2004 after the first plasma was obtained at the end of 2002. Progresses in many aspects have been made, especially in the divertor discharge and feedback control of plasma configuration. Up to now, the following operation parameters have been achieved: Ip = 320 kA, Bt = 2.2 T and discharge duration Td = 1580 ms. With the feedback control of plasma current and horizontal position, an excellent repeatability of the discharge has been achieved. The tokamak has been operated at both limiter configuration and single null (SN) divertor configuration. The HL-2A SN divertor configuration is simulated with the MHD equilibrium code SWEQU. When the divertor configuration is formed, the impurity radiation in the main plasma decreases remarkably.

日本語訳

2002年末に初めてプラズマを生成した後、2003年と2004年にHL-2Aトカマクで2回の実験キャンペーンが実施された。多くの側面で進展が見られ、特にダイバータ放電とプラズマ配位のフィードバック制御において顕著な成果が得られた。現在までに、以下の運転パラメータが達成されている:Ip = 320 kA、Bt = 2.2 T、放電持続時間Td = 1580 ms。プラズマ電流と水平位置のフィードバック制御により、放電の優れた再現性が達成された。トカマクはリミター配位とシングルヌル(SN)ダイバータ配位の両方で運転されている。HL-2AのSNダイバータ配位は、MHD平衡コードSWEQUを用いてシミュレーションされた。ダイバータ配位が形成されると、主プラズマ中の不純物放射が顕著に減少する。

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