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《Nuclear Fusion and Plasma Physics》 2010-01
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Improved confinement and analyses of the net power input through the plasma edge on the HL-2A tokamak

GAO Jin-ming,LIU Yi,LI Wei,ZHOU Yan(Southwestern Institute of Physics,Chengdu 610041)  
The phenomena of improved confinement has been observed with ECRH auxiliary heating under limiter discharge condition on the HL-2A tokamak,and electron line average density,plasma stored energy,radiated power within the separatrix,energy confinement time,H-alpha line emission etc.have been studied for the transition from L-mode to improved mode.At the same time,the time evolution of the profile of electron density and plasma radiation power have also been analyzed.Then several powers(auxiliary heating power,Ohmic heating power and the loss power) of correlating improved confinement are analyzed,and the dependence of the net power that flows through the edge of the plasma for the improved confinement transition on electron line average density and toroidal magnetic field has been carefully studied.
【CateGory Index】: TL631.24
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