EAST反向束在不同电流平台下注入的实验分析  

Experimental analysis of EAST neutral beam counter-injection under different plasma current platform

作　　者：刘成岳[1,2] 陈美霞 吴斌[2] 宋逢泉[1] LIU Cheng-yue;CHEN Mei-xia;WU Bin;SONG Feng-quan(School of Electronic Science & Applied Physics, Hefei University of Technology, Hefei 230601;Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031)

机构地区：[1]合肥工业大学电子科学与应用物理学院,合肥230601 [2]中国科学院等离子体物理研究所,合肥230031

出　　处：《核聚变与等离子体物理》2019年第1期15-20,共6页Nuclear Fusion and Plasma Physics

基　　金：国家自然科学基金(11875290;11505223;11205194);国家磁约束核聚变能发展研究专项(2013GB101000);国家国际科技合作专项(2014DFG61950)

摘　　要：对EAST装置在相同束放电参数不同等离子体电流平台下开展的束反向注入实验进行了比较分析,并利用NUBEAM程序分析了不同的等离子体电流放电平台对束电流驱动、束功率沉积、束功率沉积分布及束能量损失的影响,以此来寻求优化的注入本底等离子体参数。结果表明,较高的电流平台更有利于束与等离子体的作用以及更有效提高本底等离子体温度、束驱动电流及等离子体旋转,更有效改善等离子体约束品质。Comparative analysis of EAST neutral beam counter-injection experiment is carried out with the same beam parameters and different plasma current platforms. At the same time, the NUBEAM code is used to analyze beam current drive, power deposition, beam power deposition profile and beam energy loss, in order to optimize background plasma parameters. The results show that the higher current platform is more advantageous to the effect of beam on plasma, more effectively improving the background plasma temperature, beam-drive current, plasma rotation as well as the quality of plasma confinement.

关 键 词：中性束反向注入 驱动束电流 约束改善 能量输运分析 NUBEAM程序 

分 类 号：TL624[核科学技术—核技术及应用]