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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.
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 used using the Flash-ADC modules and the whole waveform in the sampling window is obtained, with the time and energy information can be deduced with offline processing. A digital filter algorithm has been developed to discriminate the noise and the useful signal. process, the signal to noise ratio (SNR) is increased and a better time and energy resolution can be obtained.