EAST装置氦等离子体用于极紫外光谱的绝对强度标定  

Absolute intensity calibration for extreme ultraviolet spectroscopy by use of helium plasma in EAST tokamak

作　　者：许棕 黎嫘 张凌 程云鑫 陈颖杰 王守信 周天富 刘海庆 XU Zong;LI Lei;ZHANG Ling;CHENG Yun-xin;CHEN Ying-jie;WANG Shou-xin;ZHOU Tian-fu;LIU Hai-qing(Advanced Energy Research Center,Shenzhen University,Shenzhen 518060;Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province,College of optoelectronic Engineering,Shenzhen University,Shenzhen 518060;Institute of Plasma Physics,Chinese Academy of Science,Hefei 230031;Science Island Branch of Graduate School,University of Science&Technology of China,Hefei 230031)

机构地区：[1]深圳大学新能源研究中心,深圳518060 [2]深圳大学光电工程学院光电子器件与系统(教育部/广东省)重点实验室,深圳518060 [3]中国科学院等离子体物理研究所,合肥230031 [4]中国科学技术大学研究生院科学岛分院,合肥230026

出　　处：《核聚变与等离子体物理》2022年第3期336-341,共6页Nuclear Fusion and Plasma Physics

基　　金：国家自然科学基金(11905146、11775269);国家重点研发计划(2018YFE0311100);中国科学院合肥大科学中心高端用户培育基金(2019HSC-UE014)。

摘　　要：利用EAST装置氦等离子体放电密度极限实验,观测了高电子密度下极紫外波段高信噪比的连续轫致辐射,实现了极紫外(EUV)波段绝对强度的原位标定,获得了10~65Å波段快速极紫外光谱仪系统的响应率曲线。并对等离子体中的杂质特征谱线进行了绝对强度测量,得到了CⅥ、NⅦ以及OⅧ等特征谱线强度随放电时间的演化。The continuum bremsstrahlung in extreme ultraviolet(EUV)wavelength range with high signal to noise ratio is observed at high electron density in EAST helium plasma discharge density limit experiments,which is used to perform the in-situ absolute intensity calibration of EUV wavelength range.Consequently,the sensitivity curve of a fast-time-response EUV spectrometer is obtained in 10~65Å,and the absolute intensity of several impurity emission lines in the plasma is measured,and the time evolutions of CⅥ,NⅦand OⅧlines intensity are obtained.

关 键 词：EAST装置 杂质 极紫外光谱 绝对强度标定 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]