Spectroscopy and Spectral Analysis, Volume. 38, Issue 5, 1375(2018)
Relative Spectral Intensity Response Calibration of Spectrometers Using Ar Plasma Emission Branching Ratio Method
Ar plasma was produced by using 1 064 nm laser at atmospheric pressure, the emission spectrum was measured, and 35 Ar Ⅰ and Ar Ⅱ emission lines from the 15 upper levels were selected to make calibration for spectrometer response based on the branch ration method. In addition, the intensity response of the spectrometer was calibrated by using deuterium lamp and tungsten halogen standard light source. The calibration coefficients of intensity response for spectrometers with different gratings were obtained. The calibration coefficient of the intensity response obtained by the branch ratio method was in good agreement with that by the standard light source, and the maximum relative error is 54%. The calibration method in this paper can be used as a reference for the on-line calibration of spectral measurements in some large-scale fusion devices.
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MA Yun-yun, WANG Yong-qiang, MIN Qi, CAO Shi-quan, ZHANG Zheng-rong, SU Mao-gen, SUN Dui-xiong, DONG Chen-zhong. Relative Spectral Intensity Response Calibration of Spectrometers Using Ar Plasma Emission Branching Ratio Method[J]. Spectroscopy and Spectral Analysis, 2018, 38(5): 1375
Received: Sep. 1, 2017
Accepted: --
Published Online: Jun. 1, 2018
The Author Email: Yun-yun MA (gansumayy@163.com)