基于Ar分支比方法的光谱强度响应效率标定研究  

Relative Spectral Intensity Response Calibration of Spectrometers Using Ar Plasma Emission Branching Ratio Method

作　　者：马云云 王永强 敏琦 曹世权 张正荣 苏茂根[2] 孙对兄[2] 董晨钟[2] MA Yun-yun;WANG Yong-qiang;MIN Qi;CAO Shi-quan;ZHANG Zheng-rong;SU Mao-gen;SUN Dui-xiong;DONG Chen-zhong(School of Electronic and Information Engineering,Lanzhou City University,Lanzhou 730070,China;Key Laboratory of Atomic and Molecular Physics&Functional Materialsof Gansu Province,College of Physics and Electronic Engineering,Northwest Normal University,Lanzhou 730070,China)

机构地区：[1]兰州城市学院电子与信息工程学院,甘肃兰州730070 [2]甘肃省原子分子物理与功能材料重点实验室,西北师范大学物理与电子工程学院,甘肃兰州730070

出　　处：《光谱学与光谱分析》2018年第5期1375-1379,共5页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(11564037,61741513,11364037,91126007,11464025,11464026),西北师范大学青年教师科研能力提升计划项目(NWNU-LKQN-15-3),电力系统国家重点实验室开放课题(SKLD17MK13)资助

摘　　要：利用Nd∶YAG激光器输出的1 064nm激光在大气压环境中产生了Ar等离子体,测量了Ar等离子体的发射光谱,从Ar等离子体发射光谱中筛选出了来自ArⅠ和ArⅡ15个上能级的35条跃迁谱线,基于分支比方法计算了光谱仪的辐射强度响应效率标定系数。此外,利用氘灯和卤钨灯标准光源,对光谱仪辐射强度响应效率进行了标定,得到了针对不同光栅的光谱仪的辐射效率标定系数。用分支比方法获得的辐射强度响应效率标定系数与标准光源得到辐射强度响应效率标定系数具有较好的一致性,其最大相对误差为5.4%。该研究的标定方法可以为一些大型聚变装置的光谱测量的在线标定提供借鉴和参考。Ar plasma was produced by using 1 064 nm laser at atmospheric pressure,the emission spectrum was measured,and 35 ArⅠand ArⅡemission lines from the 15upper levels were selected to make calibration for spectrometerresponse based on the branch ration method.In addition,the intensity response of the spectrometer was calibrated by using deuterium lamp and tungsten halogen standard light source.The calibration coefficients of intensity response forspectrometers with different gratings were obtained.The calibration coefficient of the intensity response obtained by the branch ratio method was in good agreement with that by the standard light source,and the maximum relative error is 5.4%.The calibration method in this paper can be used as a reference for the on-line calibration of spectral measurements in some large-scale fusion devices.

关 键 词：分支比 激光等离子体 光谱仪 强度响应效率标定 

分 类 号：O433.1[机械工程—光学工程]