A Flash-ADC data acquisition system developed for a drift chamber array and a digital filter algorithm for signal processing

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Han Yi, Li-Ming Lü, Zhao Zhang, Wen-Jing Cheng, Wei Ji, Yan Huang, Yan Zhang, Hong-Jie Li, Yin-Ping Cui, Ming Lin, Yi-Jie Wang, Li-Min Duan, Rong-Jiang Hu and Zhi-Gang Xiao. A Flash-ADC data acquisition system developed for a drift chamber array and a digital filter algorithm for signal processing[J]. Chinese Physics C, 2016, 40(11): 116102. doi: 10.1088/1674-1137/40/11/116102
Han Yi, Li-Ming Lü, Zhao Zhang, Wen-Jing Cheng, Wei Ji, Yan Huang, Yan Zhang, Hong-Jie Li, Yin-Ping Cui, Ming Lin, Yi-Jie Wang, Li-Min Duan, Rong-Jiang Hu and Zhi-Gang Xiao. A Flash-ADC data acquisition system developed for a drift chamber array and a digital filter algorithm for signal processing[J]. Chinese Physics C, 2016, 40(11): 116102.  doi: 10.1088/1674-1137/40/11/116102 shu
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Received: 2015-09-14
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    Supported by National Basic Research Program of China (973) (2015CB856903 and 2014CB845405), partly by National Science Foundation of China (U1332207 and 11375094), and by Tsinghua University Initiative Scientific Research Program

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A Flash-ADC data acquisition system developed for a drift chamber array and a digital filter algorithm for signal processing

    Corresponding author: Zhi-Gang Xiao,
  • Department of Physics, Tsinghua University, Beijing 100084, China;
    2. Collaborative Innovation Center of Quantum Matter, Beijing 100084, China;
    3. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
Fund Project:  Supported by National Basic Research Program of China (973) (2015CB856903 and 2014CB845405), partly by National Science Foundation of China (U1332207 and 11375094), and by Tsinghua University Initiative Scientific Research Program

Abstract: A Flash-ADC data acquisition (DAQ) system has been developed for the drift chamber array designed for the External-Target-Experiment at the Cooling Storage Ring at the Heavy Ion Research Facility, Lanzhou. The simplified readout electronics system has been developed using the Flash-ADC modules and the whole waveform in the sampling window is obtained, with which the time and energy information can be deduced with an offline processing. A digital filter algorithm has been developed to discriminate the noise and the useful signal. With the digital filtering process, the signal to noise ratio (SNR) is increased and a better time and energy resolution can be obtained.

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