| J-TEXT托卡马克高速单色成像系统研制 |
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| 引用本文： | 张巍巍,程芝峰,张晓龙,焦少东,张霄翼,J-TEXT团队. J-TEXT托卡马克高速单色成像系统研制[J]. 核聚变与等离子体物理, 2021, 41(1): 26-32. DOI: 10.16568/j.0254-6086.202101005 |
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| 作者姓名： | 张巍巍 程芝峰 张晓龙 焦少东 张霄翼 J-TEXT团队 |
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| 作者单位： | 华中科技大学电气与电子工程学院磁约束聚变与等离子体国际合作联合实验室,武汉 430074;深圳大学物理与光电工程学院新能源研究中心,深圳 518060 |
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| 基金项目： | 国家重点研发计划(2017YFE0301802,2017YFE0301803)。 |
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| 摘 要： | 在J-TEXT托卡马克上研制了一套高速单色成像系统用于研究等离子体杂质行为与磁流体力学(MHD)不稳定性之间的关系.用STRAH代码模拟估算了碳杂质(CV227.09nm,CIII464.7nm)辐射强度.采用光纤耦合方法设计了系统光路结构,光路覆盖高场侧区域0.3a～0.95a(a为小半径),其空间分辨率为1.3cm...
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| 关 键 词： | 单色成像 杂质辐射 MHD不稳定性 光电倍增管 |
| 收稿时间： | 2019-06-11 |
Development of high speed monochrome imaging system on J-TEXT tokamak |
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| ZHANG Wei-wei,CHENG Zhi-feng,ZHANG Xiao-long,JIAO Shao-dong,ZHANG Xiao-yi,J-TEXT team. Development of high speed monochrome imaging system on J-TEXT tokamak[J]. Nuclear Fusion and Plasma Physics, 2021, 41(1): 26-32. DOI: 10.16568/j.0254-6086.202101005 |
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| Authors: | ZHANG Wei-wei CHENG Zhi-feng ZHANG Xiao-long JIAO Shao-dong ZHANG Xiao-yi J-TEXT team |
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| Affiliation: | (1. School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074; 2. Advanced Energy Research Center, Shenzhen University, Shenzhen 518060) |
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| Abstract: | The high-speed monochrome imaging system on J-TEXT tokamak was developed to study the relationship between plasma impurity behavior and magnetohydrodynamics(MHD)instability.Intensity distributions of carbon impurity radiation(CV 227.09 nm,CIII 464.7 nm)were simulated with STRAH code.The optical path structure of the system was designed with fiber coupling method,whose survey range is 0.3 a-0.95 a(minor radius)on the high field side and its spatial resolution is 1.3 cm.A photomultiplier tube(PMT)is selected as detector,whose output current signal is amplified with transimpedance circuit and active filter circuit with 10 microseconds of time resolution in 100 kHz bandwidth.The experimental results show that the evolution of carbon impurities is surveyed under plasma discharge with MHD instability. |
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| Keywords: | Monochromatic imaging Impurity radiation MHD instability Photomultiplier tube |
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