Model on L-to H-Mode Transition Driven with Lower-Hybrid Wave

作     者：QIU Xiaoming(X.M.Qiu) BAI Lin(L.Bai) 

作者机构：Southwestern Institute of PhysicsP.O.Box 432Chengdu 610041 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：1994年第11卷第11期

页      面：677-680页

核心收录：

学科分类：08[工学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 

主　　题：turbulence hence flow 

摘      要：In this letter,a model for active suppressing tokamak edge turbulence and hence inducing the L-mode to H-mode transition with lower-hybrid wave(LHW)is *** model includes the two contents:(a)The poloidal sheared flow of plasma is generated by the ponderomotive potential and induced magnetization acting on a tokamak plasma resulting from the oscillating electric field of the injected LHW.(b)During the time the LHW is injected into tokamak edge,the edge turbulence and the LHW-generated plasma poloidal flow compete with each other;if the shear of plasma poloidal flow is large enough to suppress the edge turbulence,the confinement will be remarkably improved and hence the system will enter the H operating *** model leads us to find that the threshold LHW power required for edge-turbulence suppression is proportional to A(ω)≡(ω/ωLH)^(2)|(ω/ωLH)^(2)-1|,which enables us to explain the experiment in the JT-60 tokamak with lower-hybrid current drive.