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A Flash-ADC data acquisition system developed for a drift chamber array and a digital filter algorithm for signal processing |
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| Authors: | Han Yi Li-Ming L& uuml 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 Zhi-Gang Xiao |
| Institution: | 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 |
| 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. |
| Keywords: | external target experiment multiwire drift chamber flash-ADC DAQ |
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