Abstract A preliminary experiment triggering a plasma current quench by laser ablation of high-Z impurities has been performed in the HL-1M tokamak. The injection of impurities with higher electric charges into tokamak plasmas can increase the radiation cooling of the plasma. Resistive, highly radiating plasma formed prior to the thermal quench can dissipate both the thermal and magnetic energies, which is possibly a simple and potential approach to reducing significantly the plasma thermal energy and magnetic energy before a disruption thereby a safe plasma termination is obtained.
Received: 05 December 2005
Revised: 15 May 2006
Accepted manuscript online:
PACS:
52.40.Db
(Electromagnetic (nonlaser) radiation interactions with plasma)
Removing paint from a metal substrate using a flattened top laser Shi Shu-Dong (施曙东), Li Wei (李伟), Du Peng (杜鹏), Wang Meng (王萌), Song Feng (宋峰), Liu Shu-Jing (刘淑静), Chen Nian-Jiang (陈念江), Zhao Hong (赵鸿), Yang Wen-Shi (杨文是). Chin. Phys. B, 2012, 21(10): 104209.
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