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(EX/P4-21) Recent Experimental Results of HL-1M and Progress of HL-2A Project

Yong Liu¹⁾, J.C. Yan¹⁾, C.P. Zhou¹⁾, X.T. Ding¹⁾, S.J. Wang¹⁾, E.Y. Wang¹⁾, L.H. Yao¹⁾, C.H. Pan¹⁾, HL-1M Team¹⁾, HL-2A Team^1)
 
1) Southwestern Institute of Phyics, Chengdu, Sichuan, China

Abstract.  Recent experimental results of HL-1M tokamak and progress of HL-2A project are presented. Strong fishbone instability was observed during off-axis ECRH. This is first observation of the fishbone instability purely driven by energetic electrons produced by ECRH. The MBI was first proposed and demonstrated on HL-1M. Recently new results of MBI experiment were obtained by increasing the pressure of gas. A stair-shape density increment was obtained with high-pressure multi-pulse MBI just like the density evolution behavior during the multi-pellet injection. It is shown that injected particles could penetrated into the core region of the plasma. HL-2A is a divertor tokamak in construction at SWIP based on original ASDEX main components. Mission of HL-2A Project is to exploring physics issues involved in advanced tokamak. For first phase, the divertor (edge plasma) and confinement researches will be emphasized. The major parameters of HL-2A are: R = 1.64 m, a = 0.4 m, Bt = 2.8 T, I_P = 0.48 MA. The main parameters and characteristics of subsystems such as power supply, pumping, diagnostics and auxiliary heating are presented in the paper. The first plasma of HL-2A is expected at the end of 2002.

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