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Xiang GU (顾翔), Biao SHEN (沈飙), Jinping QIAN (钱金平), Siye DING (丁斯晔), Hongfei DU (杜红飞), Youwen SUN (孙有文), Binjia XIAO (肖炳甲), Bin WU (吴斌), Jinfang WANG (王进芳), Juan HUANG (黄娟), Jiale CHEN (陈佳乐), Kai LI (李凯), Guoqiang LI (李国强), Dalong CHEN (陈大龙), Shuliang CHEN (陈树亮), Muquan WU (吴木泉). Evaluation of NBI absorption and fast ion stored energy to improve thermal energy confinement time calculation in EAST[J]. Plasma Science and Technology, 2020, 22(2): 25103-025103. DOI: 10.1088/2058-6272/ab4cad
Citation: Xiang GU (顾翔), Biao SHEN (沈飙), Jinping QIAN (钱金平), Siye DING (丁斯晔), Hongfei DU (杜红飞), Youwen SUN (孙有文), Binjia XIAO (肖炳甲), Bin WU (吴斌), Jinfang WANG (王进芳), Juan HUANG (黄娟), Jiale CHEN (陈佳乐), Kai LI (李凯), Guoqiang LI (李国强), Dalong CHEN (陈大龙), Shuliang CHEN (陈树亮), Muquan WU (吴木泉). Evaluation of NBI absorption and fast ion stored energy to improve thermal energy confinement time calculation in EAST[J]. Plasma Science and Technology, 2020, 22(2): 25103-025103. DOI: 10.1088/2058-6272/ab4cad
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  • The absorption of neutral beam power and the fast ion stored energy in EAST plasmas with neutral beam injection (NBI) is analyzed to improve the calculation of thermal energy confinement time. The neutral beam power absorption and fast ion stored energy are systematically calculated using the TRANSP code, through the investigation of global parameters including plasma current, line averaged density and beam energy. Results have shown that scaling laws for the NBI absorption coefficient and fast ion energy rate are obtained through statistical analysis. A comparison of the confinement improvement factor H98y2 with these new scaling laws against those assuming fixed coefficients is given.
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