The solar X-ray and Extreme Ultraviolet Imager(X-EUVI),developed by the Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences(CIOMP),is the first space-based solar X-ray and Extreme ultraviolet(EUV)imager of China loaded on the Fengyun-3E(FY-3E)satellite supported by the China Meteorological Administration(CMA)for solar observation.Since started work on July 11,2021,X-EUVI has obtained many solar images.The instrument employs an innovative dual-band design to monitor a much larger temperature range on the Sun,which covers 0.6-8.0 nm in the X-ray region with six channels and 19.5 nm in the EUV region.X-EUVI has a field of view of 42',an angular resolution of 2.5"per pixel in the EUV band and an angular resolution of 4.1"per pixel in the X-ray band.The instrument also includes an X-ray and EUV irradiance sensor(X-EUVS)with the same bands as its imaging optics,which measures the solar irradiance and regularly calibrates the solar images.The radiometric calibration of X-EUVS on the ground has been completed,with a calibration accuracy of 12％.X-EUVI is loaded on the FY-3E satellite and rotates relative to the Sun at a uniform rate.Flat-field calibration is conducted by utilizing successive rotation solar images.The agreement between preliminarily processed X-EUVI images and SDO/AIA and Hinode/XRT images indicates that X-EUVI and the data processing algorithm operate properly and that the data from X-EUVI can be applied to the space weather forecast system of CMA and scientific investigations on solar activity.

Bo Chen;Xiao-Xin Zhang;Ling-Ping He;Ke-Fei Song;Shi-Jie Liu;Guang-Xing Ding;Jin-Ping Dun;Jia-Wei Li;Zhao-Hui Li;Quan-Feng Guo;Hai-Feng Wang;Xiao-Dong Wang;Yun-Qi Wang;Hong-Ji Zhang;Guang Zhang;Zhen-Wei Han;Shuang Dai;Pei-Jie Zhang;Liang Sun;Yang Liu software engineer;Peng Wang;Kun Wu;Chen Tao;Shi-Lei Mao;Gui Mei;Liang Yang;Li-Heng Chen;Chun-Yang Han;Bin Huang;Yang Liu mechanical engineer;Shuai Ren;Peng Zhou;Ze-Xi Wei;Xiao-Xue Zhang;Yue Zhang;Xin Zheng;Yang Wang;Ya Chen;Jing-Jiang Xie;Fei He;Qiao Song;Wei-Guo Zong;Xiu-Qiing Hu;Peng Zhang;Jing-Song Wang;Zhong-Dong Yang

Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun,China;State Key Laboratory of Applied Optics,Chinese Academy of Sciences,Changchun,China;NationallSatellite Meteorological Center,China Meteorological Administration,Beijing,China;Key Laboratory of Space Weather,National Center for Space Weather,China Meteorological Administration,Beijing,China;Innovation Center for Fengyun Meteorological Satellite(FYSIC),Beijing,China;Key Laboratory of Earth and Planetary Physics,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing,China

光：科学与应用（英文版）

[1]Bo Chen;Xiao-Xin Zhang;Ling-Ping He;Ke-Fei Song;Shi-Jie Liu;Guang-Xing Ding;Jin-Ping Dun;Jia-Wei Li;Zhao-Hui Li;Quan-Feng Guo;Hai-Feng Wang;Xiao-Dong Wang;Yun-Qi Wang;Hong-Ji Zhang;Guang Zhang;Zhen-Wei Han;Shuang Dai;Pei-Jie Zhang;Liang Sun;Yang Liu software engineer;Peng Wang;Kun Wu;Chen Tao;Shi-Lei Mao;Gui Mei;Liang Yang;Li-Heng Chen;Chun-Yang Han;Bin Huang;Yang Liu mechanical engineer;Shuai Ren;Peng Zhou;Ze-Xi Wei;Xiao-Xue Zhang;Yue Zhang;Xin Zheng;Yang Wang;Ya Chen;Jing-Jiang Xie;Fei He;Qiao Song;Wei-Guo Zong;Xiu-Qiing Hu;Peng Zhang;Jing-Song Wang;Zhong-Dong Yang-.Solar X-ray and EUV imager on board the FY-3E satellite)[J].光：科学与应用（英文版）,2022(12):2939-2951

EUVI,CIOMP,EUVS,calibrates,radiometric,Hinode

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