A MRPC prototype for SOLID-TOF in JLab

A prototype of Multi-gap Resistive Plate Chamber (MRPC) for the future SoLID time of flight system at JLab has been developed. The counter, trapezoidal in shape, is assembled with the newly developed low-resistive Chinese glass. It has 10 × 0.25 mm gas gaps and 11 readout strips of different lengths. The strip width is 2.5 cm with a strip-to-strip interval of 3 mm. Preliminary tests performed with cosmic-rays showed an efficiency higher than 95% and a time resolution around 50 ps. Results under diffuse/uniform irradiation performed at JLab with scattered high energy electrons showed a time resolution of 70-80 ps and over-95% efficiency up to an incoming flux of 15 kHz/cm². These performances meet the requirements of the new time of flight system SoLID-TOF. © 2013 IOP Publishing Ltd and Sissa Medialab srl.

Duke Scholars

Author Haiyan Gao Physics