Scaling Laws of Heat Flux Width in the HL-2A Closed Divertor Tokamak  

作　　者：Longwen Yan Jinming Gao Xianggan Miao Zhihui Huang Na Wu Wenjin Chen Ting Wu Weice Wang Liang Liu Xiaoxue He Kaiyang Yi Yu He Lin Nie Zhongbing Shi Wulv Zhong 严龙文;高金明;苗祥淦;黄治辉;吴娜;陈文锦;吴婷;王威策;刘亮;何小雪;弋开阳;何钰;聂林;石中兵;钟武律(Southwestern Institute of Physics,Chengdu 610225,China)

机构地区：[1]Southwestern Institute of Physics,Chengdu 610225,China

出　　处：《Chinese Physics Letters》2022年第11期37-41,共5页中国物理快报（英文版）

基　　金：partially supported by the National Natural Science Foundation of China (Grant No. 11875020);the National Key R&D Program of China (Grant No. 2019YFE03030002)。

摘　　要：The scaling law of divertor heat flux width is one of the key topics of magnetic confinement fusion,which is almost inversely proportional to the poloidal magnetic field on some opened divertor tokamaks.This work focuses on the scaling laws of the closed divertor heat flux width in the HL-2 A tokamak under different discharge conditions,such as the Ohmic,L-and H-modes.The results indicate that there are basic similarities of the scaling laws of the heat flux width between the opened and closed divertors.However,a larger spreading width in the private flux region is found,which is relevant to a small expansion factor of the magnetic flux in the closed divertor.

关 键 词：TOKAMAK magnetic SCALING 

分 类 号：TL631.24[核科学技术—核技术及应用]