DAMPE silicon tracker on-board data compression algorithm

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DONG Yi-Fan, ZHANG Fei, QIAO Rui, PENG Wen-Xi, FAN Rui-Rui, GONG Ke, WU Di and WANG Huan-Yu. DAMPE silicon tracker on-board data compression algorithm[J]. Chinese Physics C, 2015, 39(11): 116202. doi: 10.1088/1674-1137/39/11/116202
DONG Yi-Fan, ZHANG Fei, QIAO Rui, PENG Wen-Xi, FAN Rui-Rui, GONG Ke, WU Di and WANG Huan-Yu. DAMPE silicon tracker on-board data compression algorithm[J]. Chinese Physics C, 2015, 39(11): 116202.  doi: 10.1088/1674-1137/39/11/116202 shu
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Received: 2015-03-03
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    Supported by Strategic Priority Research Program on Space Science of Chinese Academy of Sciences (XDA040402) and National Natural Science Foundation of China (1111403027)

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DAMPE silicon tracker on-board data compression algorithm

    Corresponding author: PENG Wen-Xi,
    Corresponding author: WANG Huan-Yu,
Fund Project:  Supported by Strategic Priority Research Program on Space Science of Chinese Academy of Sciences (XDA040402) and National Natural Science Foundation of China (1111403027)

Abstract: The Dark Matter Particle Explorer (DAMPE) is an upcoming scientific satellite mission for high energy gamma-ray, electron and cosmic ray detection. The silicon tracker (STK) is a subdetector of the DAMPE payload. It has excellent position resolution (readout pitch of 242 μm), and measures the incident direction of particles as well as charge. The STK consists of 12 layers of Silicon Micro-strip Detector (SMD), equivalent to a total silicon area of 6.5 m2. The total number of readout channels of the STK is 73728, which leads to a huge amount of raw data to be processed. In this paper, we focus on the on-board data compression algorithm and procedure in the STK, and show the results of initial verification by cosmic-ray measurements.

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