Measurements of charge transfer efficiency in a proton-irradiated swept charge device

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WANG Yu-Sa, YANG Yan-Ji, CHEN Yong, LIU Xiao-Yan, CUI Wei-Wei, XU Yu-Peng, LI Cheng-Kui, LI Mao-Shun, HAN Da-Wei, CHEN Tian-Xiang, HUO Jia, WANG Juan, LI Wei, HU Wei, ZHANG Yi, LU Bo, YIN Guo-He, ZHU Yue and ZHANG Zi-Liang. Measurements of charge transfer efficiency in a proton-irradiated swept charge device[J]. Chinese Physics C, 2014, 38(6): 066001. doi: 10.1088/1674-1137/38/6/066001
WANG Yu-Sa, YANG Yan-Ji, CHEN Yong, LIU Xiao-Yan, CUI Wei-Wei, XU Yu-Peng, LI Cheng-Kui, LI Mao-Shun, HAN Da-Wei, CHEN Tian-Xiang, HUO Jia, WANG Juan, LI Wei, HU Wei, ZHANG Yi, LU Bo, YIN Guo-He, ZHU Yue and ZHANG Zi-Liang. Measurements of charge transfer efficiency in a proton-irradiated swept charge device[J]. Chinese Physics C, 2014, 38(6): 066001.  doi: 10.1088/1674-1137/38/6/066001 shu
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Received: 2013-08-08
Revised: 2013-12-16
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Measurements of charge transfer efficiency in a proton-irradiated swept charge device

    Corresponding author: WANG Yu-Sa,

Abstract: Charged Coupled Devices (CCDs) have been successfully used in several low energy X-ray astronomical satellites over the past two decades. Their high energy resolution and high spatial resolution make them a perfect tool for low energy astronomy, such as observing the formation of galaxy clusters and the environment around black holes. The Low Energy X-ray Telescope (LE) group is developing a Swept Charge Device (SCD) for the Hard X-ray Modulation Telescope (HXMT) satellite. A SCD is a special low energy X-ray CCD, which can be read out a thousand times faster than traditional CCDs, simultaneously keeping excellent energy resolution. A test method for measuring the charge transfer efficiency (CTE) of a prototype SCD has been set up. Studies of the charge transfer inefficiency (CTI) with a proton-irradiated SCD have been performed at a range of operating temperatures. The SCD is irradiated by 3×108cm-2 10 MeV protons.

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