Development of the HCN heterodyne collective scattering system on J-TEXT

作     者：Qinlin TAO Peng SHI Li GAO Lu WANG Zhongyong CHEN Zhonghe JIANG Yinan ZHOU Chengyu YANG Yuhan WANG Zhipeng CHEN Nengchao WANG Zhoujun YANG Yonghua DING Yuan PAN the J-TEXT Team 陶沁林;石鹏;高丽;王璐;陈忠勇;江中和;周乙楠;杨诚宇;王钰涵;陈志鹏;王能超;杨州军;丁永华;潘垣;the J-TEXT Team

作者机构：International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma PhysicsState Key Laboratory of Advanced Electromagnetic Engineering and TechnologySchool of Electrical and Electronic EngineeringHuazhong University of Science and Technology Wuhan 430074People's Republic of China United Kingdom Atomic Energy AuthorityCulham Centre for Fusion EnergyCulham Science CentreAbingdonOxon OX143DBUnited Kingdom Southwestern Institute of PhysicsChengdu 610041People's Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2022年第24卷第6期

页      面：72-76页

核心收录：

学科分类：08[工学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 

基　　金：the National Key R&D Program of China(Nos.2017YFE0302000,2018YFE0310300 and 2018YFE0309101) National Natural Science Foundation of China(Nos.51821005 and 11905080) 

主　　题：collective scattering dual-HCN laser density fluctuations 

摘      要：A heterodyne collective scattering system has been designed and developed to investigate the turbulent transport of core plasma on J-TEXT.A dual-HCN laser which consists of two separately pumped HCN gas lasers at 337μm has been developed as the laser source of the scattering *** intermediate frequency(IF)is~1 MHz when there is a 4μm cavity length difference and capable to maintain stability more than 5 h without manual *** channels at three different angles(2≤k_(⊥)≤12 cm^(-1))have been installed with Schottky barrier diode mixers of 893 *** sampling frequency of the acquisition system is6 MHz to observe low-frequency density *** experimental results have been detected and more results can be expected in future experiments.