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DUAN Yanmin(段艳敏), HU Liqun (胡立群), MAO Songtao(毛松涛), XU Ping(许平), CHEN Kaiyun(陈开云), LIN Shiyao(林士耀), ZHONG Guoqiang(钟国强), ZHANG Jizong(张继宗), ZHANG Ling(张凌), WANG Liang(王亮). Measurement of radiated power loss on EAST[J]. Plasma Science and Technology, 2011, 13(5): 546-549.
Citation: DUAN Yanmin(段艳敏), HU Liqun (胡立群), MAO Songtao(毛松涛), XU Ping(许平), CHEN Kaiyun(陈开云), LIN Shiyao(林士耀), ZHONG Guoqiang(钟国强), ZHANG Jizong(张继宗), ZHANG Ling(张凌), WANG Liang(王亮). Measurement of radiated power loss on EAST[J]. Plasma Science and Technology, 2011, 13(5): 546-549.
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    • Abstract
  • A type of silicon detector known as AXUV (Absolute Extreme Ultraviolet) photodiodes is successfully used to measure the radiated power in EAST. The detector is characterized by compact structure, fast temporal response (<0.5μs) and flat spectral sensitivity in the range from ultra-violet to X-ray. Two 16-channel AXUV arrays are installed in EAST to view the whole poloidal cross-section of plasma. Based on the diagnostic system, typical radiation distributions for both limiter and divertor plasma are obtained and compared. As divertor detachment occurs, the radiation distribution in X-point region is observed to vary distinctly. The total radiation power losses in discharges with different plasma parameters are briefly analyzed.
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