HL-2M装置宽谱段光谱诊断系统研制  

Development of HL-2M overview spectroscopy diagnostic system

作　　者：魏彦玲[1] 刘亮[1] 何小斐 何小雪[1] 张能 WEI Yan-ling;LIU Liang;HE Xiao-fei;HE Xiao-xue;ZHANG Neng(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544-548,共5页Nuclear Fusion and Plasma Physics

基　　金：国家重点研发计划专项(2017YFE0301106,2018YFE0301102);四川省科学技术厅科技创新创业苗子工程(2020JDRC0125)。

摘　　要：HL-2M装置宽谱段光谱诊断系统由采集光学、石英光纤和集成式光栅光谱仪构成,工作波段为300~1100nm,可实现对工作气体(氢及其同位素)和内在杂质(碳、铁、氧等)线辐射的同步监测。通过将5台紧凑型光谱仪并联形成集成式光栅光谱仪,可在保证宽谱段覆盖的同时实现较好的光谱分辨(0.04~0.19nm·pixel^(-1))。目前系统具有一个空间通道,最优时间分辨为1.05ms,常规采样时间为20ms。在HL-2M装置初始等离子体放电实验期间,利用该套系统识别出氢等离子体的主要杂质为碳和氧,并对不同粒子的辐射特性进行了初步分析。HL-2 M overview spectroscopy diagnostic system consisted of collection optics, optic fibers and integrated spectrometer, and extended the observation wavelength range from standard visible band to near infrared and near ultraviolet band. The overview spectrometer observes the wavelength range 300~1100 nm. The spectral lines of working gas(hydrogen and its isotopes) and intrinsic impurities(carbon, iron, oxygen, et al.) can be simultaneous monitored. The integrated spectrometer composed of five compact spectrometers ensured wide wavelength coverage and good spectral resolution(0.04~0.19 nm·pixel^(-1)). The system currently has one spatial channel. The best time resolution was 1.05 ms, and the system typically ran with a sampling time of 20 ms. During HL-2 M first plasma experiments, the main impurities in the hydrogen plasmas were identified as carbon and oxygen, and the characteristics of plasma emission were studied.

关 键 词：光谱诊断 等离子体辐射 杂质 

分 类 号：O536[理学—等离子体物理]