A precise time measurement evaluation board for a radiography system of high-Z materials

LOW ENERGY ACCELERATOR AND RADIATION APPLICATIONS

A precise time measurement evaluation board for a radiography system of high-Z materials

DOU Fei，

LIANG Hao，

ZHOU Lei，

ZHOU Yongzhao

Nuclear Science and Techniques

Vol.23, No.5

pp.284-288

Published in print 20 Oct 2012

DOI：10.13538/j.1001-8042/nst.23.284-288

39300

The time resolution of a radiography system for high-Z materials shall be at least 1 ns, hence the need of a time measurement system with a resolution of about 100 ps. In this paper, a Time Measurement Evaluation Board (TMEB) is developed to meet the need. It is based on the time-to-digital converter of ACAM TDC-GP2. Test results show an overall time resolution of 81 ps in detecting cosmic-rays with a plastic scintillator.

RadiographyTime measurementTDCCFDResolutionLinearity

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