HL-2M等离子体辐射量热计系统的研制  

Development of HL-2M bolometer system

作　　者：高金明[1] 董云波[1] 邓玮[1] 卢杰[1] 刘仪[1] 苗祥淦 GAO Jin-ming;DONG Yun-bo;DENG Wei;LU Jie;LIU Yi;MIAO Xiang-gan(Southwestern Institute of Physics,Chengdu 610041)

机构地区：[1]核工业西南物理研究院,成都610041

出　　处：《核聚变与等离子体物理》2021年第S02期516-521,共6页Nuclear Fusion and Plasma Physics

基　　金：国家磁约束核聚变能发展研究专项(2018YFE0310300)。

摘　　要：HL-2M装置辐射量热计系统采用16通道光电二极管阵列作为探测器,11个探测器阵列,共有176个探测通道,被设计在同一个小截面内,交叉覆盖上下偏滤器、等离子体边缘和等离子体芯部区域。数值模拟结果显示,根据这种视线布局能够精确地估算出等离子体的总辐射功率;运用相关层析反演方法能够重建出等离子体辐射功率密度的分布特征。在HL-2M初始等离子体放电中,根据中平面的探测器阵列对等离子体辐射特征进行了初步的实验分析。HL-2 M bolometer system was designed and optimized with the absolute extreme ultraviolet(AXUV) diode arrays, and 16-channel AXUV linear arrays was used as the diagnostic detectors. In order to meet the physical requirements, 176 lines of sight were designed within one poloidal section of the torus, and the geometrical arrangement of the arrays was optimized by coverage mapping and tomographic reconstruction test.Phantom simulation showed that the tomography methods can make reasonable reconstructions of the plasma emission profiles from the measurement of about 176 lines of sight. In the HL-2 M first plasma operation, one AXUV array was installed on the midplane and got reasonable results.

关 键 词：HL-2M装置 辐射量热计系统 等离子体辐射功率 层析反演 

分 类 号：TL654[核科学技术—核技术及应用]