›› 2015, Vol. 24 ›› Issue (2): 25205-025205.doi: 10.1088/1674-1056/24/2/025205
• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇 下一篇
陈大龙a, Granetz Robertc, 沈飙a, 杨飞a, 钱金平a, 肖炳甲a b
Chen Da-Long (陈大龙)a, Granetz Robertc, Shen Biao (沈飙)a, Yang Fei (杨飞)a, Qian Jin-Ping (钱金平)a, Xiao Bing-Jia (肖炳甲)a b
摘要: A preliminary analysis of plasma current quenching is presented in this paper based on the disruption database. It demonstrates that 26.8% of discharges have been disrupted in the last 2012 campaign, in addition, the plasma disruptive rate grows with the increase of plasma current. The best-fit linear and instantaneous plasma current quench rate is extracted from the recent EAST disruptions, showing that an 80%-30% interval of the maximum plasma current is well fit for the EAST device. The lowest area-normalized current quench time is 3.33 ms/m2 with the estimated plasma electron temperature being 7.3 eV~9.5 eV. In the disruption case the maximum eddy current goes up to 400 kA, and a fraction of currents are respectively driven on the upper and lower outer plate with nearly 100 MPa-200 MPa stress in the leg.
中图分类号: (Tokamaks, spherical tokamaks)