Absolute sensitivity calibration of vacuum and extreme ultraviolet spectrometer systems and Zeff measurement based on bremsstrahlung continuum in HL-2A tokamak
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- Hangyu Zhou
- Southwestern Institute of Physics 1 , P.O. Box 432, Chengdu 610041, China
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- Zhengying Cui
- Southwestern Institute of Physics 1 , P.O. Box 432, Chengdu 610041, China
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- Shigeru Morita
- National Institute for Fusion Science 2 , Toki, Gifu 509-5292, Japan
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- Bingzhong Fu
- Southwestern Institute of Physics 1 , P.O. Box 432, Chengdu 610041, China
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- Motoshi Goto
- National Institute for Fusion Science 2 , Toki, Gifu 509-5292, Japan
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- Ping Sun
- Southwestern Institute of Physics 1 , P.O. Box 432, Chengdu 610041, China
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- Chunfeng Dong
- National Institute for Fusion Science 2 , Toki, Gifu 509-5292, Japan
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- Yadong Gao
- Southwestern Institute of Physics 1 , P.O. Box 432, Chengdu 610041, China
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- Yuan Xu
- Southwestern Institute of Physics 1 , P.O. Box 432, Chengdu 610041, China
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- Ping Lu
- Southwestern Institute of Physics 1 , P.O. Box 432, Chengdu 610041, China
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- Qingwei Yang
- Southwestern Institute of Physics 1 , P.O. Box 432, Chengdu 610041, China
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- Xuru Duan
- Southwestern Institute of Physics 1 , P.O. Box 432, Chengdu 610041, China
Abstract
<jats:p>A grazing-incidence flat-field extreme ultraviolet (EUV) spectrometer has been newly developed in HL-2A tokamak. Typical spectral lines are observed from intrinsic impurities of carbon, oxygen, iron, and extrinsic impurity of helium in the wavelength range of 20 Å–500 Å. Bremsstrahlung continuum is measured at different electron densities of HL-2A discharges to calibrate absolute sensitivity of the EUV spectrometer system and to measure effective ionic charge, Zeff. The sensitivity of a vacuum ultraviolet (VUV) spectrometer system is also absolutely calibrated in overlapped wavelength range of 300 Å–500 Å by comparing the intensity between VUV and EUV line emissions.</jats:p>
Journal
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- Review of Scientific Instruments
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Review of Scientific Instruments 83 (10), 10D507-, 2012-06-21
AIP Publishing
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Keywords
Details 詳細情報について
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- CRID
- 1360567183857387136
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- ISSN
- 10897623
- 00346748
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- Data Source
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- Crossref
- KAKEN