Modeling of Plasma Current Decay during Disruptions Caused by Massive Impurity Injection

作者: Hirokazu OHWAKI , Masayoshi SUGIHARA , Akiyoshi HATAYAMA

DOI: 10.1585/PFR.1.016

关键词:

摘要: A numerical model is developed to evaluate the decay time of plasma current during disruption following intense impurity injections. Our based on power balance equation between joule heating and radiation as a way electron temperature charge state after thermal quench. The applied experimental results massive N2 gas injections in JFT-2M, which simulate “ingress-of-coolant event” (ICE) well mitigations ITER. It confirmed that can reproduce experiments reasonably well.

参考文章(15)
R.R. Khayrutdinov, V.E. Lukash, Studies of plasma equilibrium and transport in a Tokamak fusion device with the inverse-variable technique Journal of Computational Physics. ,vol. 109, pp. 193- 201 ,(1993) , 10.1006/JCPH.1993.1211
R Yoshino, S Tokuda, Y Kawano, Generation and termination of runaway electrons at major disruptions in JT-60U Nuclear Fusion. ,vol. 39, pp. 151- 161 ,(1999) , 10.1088/0029-5515/39/2/302
R Yoshino, Y Nakamura, Y Neyatani, Avoidance of VDEs during plasma current quench in JT-60U Nuclear Fusion. ,vol. 36, pp. 295- 307 ,(1996) , 10.1088/0029-5515/36/3/I03
Victor Lukash, Masayoshi Sugihara, Yuri Gribov, Hirobumi Fujieda, Analysis of the direction of plasma vertical movement during major disruptions in ITER Plasma Physics and Controlled Fusion. ,vol. 47, pp. 2077- 2086 ,(2005) , 10.1088/0741-3335/47/12/001
R Yoshino, Y Neyatani, N Hosogane, S.W Wolfe, M Matsukawa, H Ninomiya, The softening of current quenches in JT-60U Nuclear Fusion. ,vol. 33, pp. 1599- 1612 ,(1993) , 10.1088/0029-5515/33/11/I02
M.N Rosenbluth, S.V Putvinski, Theory for avalanche of runaway electrons in tokamaks Nuclear Fusion. ,vol. 37, pp. 1355- 1362 ,(1997) , 10.1088/0029-5515/37/10/I03
M.N Rosenbluth, S.V Putvinskij, P.B Parks, Liquid jets for fast plasma termination in tokamaks Nuclear Fusion. ,vol. 37, pp. 955- 966 ,(1997) , 10.1088/0029-5515/37/7/I04
B.V Kuteev, V.Yu Sergeev, S Sudo, Emergency discharge quench or rampdown by a noble gas pellet Nuclear Fusion. ,vol. 35, pp. 1167- 1172 ,(1995) , 10.1088/0029-5515/35/10/I02
Yasunori KAWANO, Tomohide NAKANO, Akihiko ISAYAMA, Nobuyuki ASAKURA, Hiroshi TAMAI, Hirotaka KUBO, Hidenobu TAKENAGA, Mohammad BAKHTIARI, Shunsuke IDE, Takashi KONDOH, Takaki HATAE, Characteristics of Post-Disruption Runaway Electrons with Impurity Pellet Injection Journal of Plasma and Fusion Research. ,vol. 81, pp. 593- 601 ,(2005) , 10.1585/JSPF.81.593