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A 128-channel high precision time measurement module

Kang L., Zhao L., Zhou J, Liu S., An Q.

Metrology and Measurement Systems

2013

Vol. 20, nr 2

275--286

In the external target experiment for heavy ion collisions in the HIRFL-CSR, Multi-Wire Drift Chambers are used to measure the drift time of charged particles to obtain the track information. This 128-channel high precision time measurement module is designed to perform the time digitization. The data transfer is based on a PXI interface to guarantee a high data rate. Test results show that a 100 ps resolution with a data transfer rate up to 40 MBps has been achieved; this module has also been proven to function well with the detector through a commissioning test.