EAST边界旋转诊断的光路分析  

Sightline analysis of edge rotation diagnostic on EAST

作　　者：熊言威[1] 李颖颖[1] 张洪明[1] 符佳[1] 沈永才[1] 王福地[1] 石跃江[2] 吕波[1] 

机构地区：[1]中国科学院等离子体物理研究所合肥230031 [2]中国科学技术大学核科学技术学院合肥230026

出　　处：《核技术》2013年第7期74-80,共7页Nuclear Techniques

基　　金：国家自然科学基金(10990212、11175208);科技部国家磁约束核聚变发展研究专项(2011GB101001,2011GB107003,2012GB101001,2013GB112004)资助

摘　　要：具有空间和时间分辨的边界旋转诊断(ERD)已在EAST装置上研制完成,经调试已投入EAST实验研究中。多道光纤的观测视线已进行位置标定,经过分析,每道光纤所能耦合的离子辐射通量可表述为解析形式的弦积分量。使用卤素气体标准灯对光谱仪进行了波长标定,并确定了仪器响应函数。ERD可提供边界离子温度和旋转速度,是研究C、O、Li、N、He、Ar等离子在可见光波段辐射的有效工具。通过对CIII谱线的分析,得到了边界离子温度和边界旋转速度的初步实验结果,环向ERD初步实验结果表明ERD测量边界杂质离子温度及旋转速度的可行性。Background： Edge rotation diagnostic system （ERD） with spatial and temporal resolution has been developed on EAST Tokamak. Purpose： The ERD system is an effective method to research the radiation phenomenon of C, O, Li, N, He and Ar in visible range. The ERD has been used for the measurement of ion temperature and rotation velocity at the edge plasma. Methods： The measurement was done by using an optical fiber spectrometer and two systems of lenses. Results： The ion radiant flux coupled by each fiber can be expressed as an analytical form, and the sightline of each fiber was determinated, and the spectrometer was calibrated by using a halogen lamp. Conclusions： The initial experimental results were obtained by analysing spectral lines of CIII, which results suggest that ERD has the ability to provide edge ion temperature and rotation velocity.

关 键 词：旋转速度 离子温度 边界旋转诊断 

分 类 号：TL651[核科学技术—核技术及应用] TL626