The first results of divertor discharge and supersonic molecular beam injection on the HL-2A tokamak

The first results of divertor discharge and supersonic molecular beam injection on the HL-2A

tokamak

Yao Liang-Hua;Yuan Bau-Shan;Feng Bei-Bin;Chen Cheng-Yuan;Hong Wen-Yu;Li Ying-Liang

【期刊名称】《中国物理：英文版》 【年(卷),期】2007(016)001

【摘要】HL-2A tokamak is the first tokamak with divertors in China. The plasma boundary and the position of the striking point on the target plates of the HL-2A closed divertor were simulated by the current filament code and they were in agreement with the diagnostic results in the divertor. Supersonic molecular beam injection (SMBI) system was first installed and tested on the HL-2A tokamak in 2004. In the present experiment low pressure SMBI fuelling on the HL-2A and during the period of SMB pulse injection into the HL-2A plasma the power density convected at the target plate surfaces was 0.4 times of that before or after the beam injection. It is a useful fuelling method for decreasing the heat load on the neutralizer plates of the divertor. 【总页数】7页(200-206)

【关键词】supersonic molecular beam injection (SMBI), HL-2A tokamak, closed divertor, simulation

【作者】Yao Liang-Hua;Yuan Bau-Shan;Feng Bei-Bin;Chen Cheng-