Design of vacuum ultraviolet spectroscopy system on J-TEXT
作者: Y. LiZ.F. ChengX.L. ZhangJ.R. WangG. Zhuang
作者单位: 1State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Luo Yu Road, Wuhan 430074, China
刊名: Journal of Instrumentation, 2017, Vol.12 (6)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1748-0221/12/06/C06043
原始语种摘要: A Vacuum Ultraviolet (VUV) spectroscopy system is designed on J-TEXT tokamak in order to study the transport of the light impurities including carbon and oxygen in edge region with the effect of RMP or ECRH. It covers the wavelength ranging from 30 to 300nm. The normal incidence monochromator with concave grating with the focal length of 1 meter is chosen for light dispersion. A 1024*1024 pixels back illuminated charge-coupled device (CCD) is chosen as the detector for the profile measurement. The observing region is from 1.1a (minor radius) at the lower part of the plasma to 0.6a at the upper part with an adjusting spatial resolution slit. In order to prove the potential for the expected signal intensity, spectra are simulated using the impurity transport code STRAHL. The photons numbers...
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  • vacuum 真空
  • light 
  • tokamak 托卡马克
  • intensity 强度
  • bremsstrahlung 韧致辐射
  • device 装置
  • system 
  • calibration 校准
  • concave 凹的
  • impurity 杂质