采用高Z杂质注入HL1M等离子体中,触发等离子体电流衰竭的实验已经施行.用激光吹气注入高Z杂质能够增加辐射冷却,等离子体在-3ms时间内迅速冷却而且在电流终止之前电子温度损失约80%.实验证明它是一种使得大型聚变实验装置上在放电破裂之前显著减少等离子体中热能而且安全终止放电的简单、快速和有效的途径. Experiments to trigger plasma current depletion using high-Z impurities into HL1M plasma have been performed.Importing high-Z impurities with laser blow-in can increase radiative cooling, rapid cooling of the plasma within -3 ms, and loss of electron temperature prior to termination of the current About 80% .The experiment proves that it is a simple, fast and effective way to greatly reduce the thermal energy in the plasma and safely terminate the discharge on the large fusion experiment device before the rupture of the electrical discharge.