Improved density measurement by FIR laser interferometer on EAST tokamak |
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| Authors: | Jie Shen Yinxian Jie Haiqing Liu Xuechao Wei Zhengxing Wang Xiang Gao |
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| Affiliation: | Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, PR China |
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| Abstract: | A three-channel far-infrared (FIR) hydrogen cyanide (HCN) laser interferometer is in operation since 2010 to measure the line averaged electron density on experimental advanced superconducting tokamak (EAST). The HCN laser signal is improved by means of a new schottky barrier diode (SBD) detector. The improved measurement and latest experiment results of the three-channel FIR laser interferometer on EAST tokamak are reported. |
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| Keywords: | Far-infrared laser interferometer Electron density Schottky barrier detector |
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