Growth rate of peeling mode in the near separatrix region of diverted tokamak plasma  

作　　者：石秉仁 

机构地区：[1]Southwestern Institute of Physics, Chengdu 610041, China

出　　处：《Chinese Physics B》2014年第1期297-300,共4页中国物理B（英文版）

基　　金：Project supported by the National Magnetic Confinement Fusion Science Program of China （Grant No. 2009GB 101002）.

摘　　要：An analytical expression of the peeling mode in the near separatrix region of diverted tokamak plasma is derived. It is shown that in diverted plasmas both with single and double X points, though the perturbed potential energy of the unstable peeling mode tends to be large, its growth rate becomes very small due to the even larger kinetic energy. Compared to some recent studies that give qualitatively correct results about this growth rate, our result is directly related with the diverted equilibrium quantities suitable for application to realistic experiments.An analytical expression of the peeling mode in the near separatrix region of diverted tokamak plasma is derived. It is shown that in diverted plasmas both with single and double X points, though the perturbed potential energy of the unstable peeling mode tends to be large, its growth rate becomes very small due to the even larger kinetic energy. Compared to some recent studies that give qualitatively correct results about this growth rate, our result is directly related with the diverted equilibrium quantities suitable for application to realistic experiments.

关 键 词：diverted plasma tokamak pedestal growth rate of peeling mode 

分 类 号：O[理学]