摘要
A high dynamic range readout system,consisting of a multi-dynode readout PMT and a VA32 chip,is presented.An LED system is set up to calibrate the relative gains between the dynodes,and the ADC counts per MIPs from dynode 7 are determined under cosmic-ray calibration.A dynamic range from 0.5 MIPs to 1×10 5 MIPs is achieved.
A high dynamic range readout system,consisting of a multi-dynode readout PMT and a VA32 chip,is presented.An LED system is set up to calibrate the relative gains between the dynodes,and the ADC counts per MIPs from dynode 7 are determined under cosmic-ray calibration.A dynamic range from 0.5 MIPs to 1×10 5 MIPs is achieved.
基金
Supported by Ministry of Science and Technology of China (2010CB833002)
Innovative Program of Chinese Academy of Sciences (KJCX2-YW-T16)
