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CO2 laser collective Thomson scattering diagnostics on the HT-7 tokamak |
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| Authors: | Li Yadong Li Jiangang Mao JianshanInstitute of Plasma Physics Chinese Academy of Sciences Hefei China |
| Affiliation: | Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China;Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China;Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China |
| Abstract: | A CW CO2 laser collective Thomson scattering diagnostics was developed to measure plasma density fluctuations on the HT-7 tokamak. The design and construction of CO2 laser scattering apparatus is described. The laser source is a continuous-wave CO2 laser with a cavity length of 1.9 m and a power output of about 10 W at 10.6 μm. The k-resolution of the system is △k ≈ 3.2 cm-1. The preliminary data from the diagnostic is presented. |
| Keywords: | collective scattering density fluctuation CO2 laser |
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