Beam test of signal cross-talk and transmission for LMPRC

TL;DR

This paper reports on the beam testing of a new long-strip MRPC prototype, demonstrating high efficiency, excellent time and spatial resolution, and low cross-talk, suitable for particle detection applications.

Contribution

The study introduces a novel long-strip MRPC design with improved timing, efficiency, and spatial resolution, and evaluates its performance through beam tests.

Findings

Time resolution of 60-70 ps

Detection efficiency over 98%

Cross-talk ratio below 2%

Abstract

A new prototype of large area Multi-gap Resistive Plate Chamber (MRPC) with long readout strips was built. This Long-strip Multi-gap Resistive Plate Chamber (LMRPC) is double stacked and has ten 250 $\mu$m-thick gas gaps. Signals are read out from two ends of strip with an active area of 50 cm$\times$2.5 cm in each. The detector was tested at FOPI in GSI, using the secondary particles of proton beams ($E = 3.5 GeV$) colliding with a Pb target. The results show that the LMRPC prototype has a time resolution of about 60$\sim$70 ps; the detecting efficiency is over 98% and the ratio of cross-talk is lower than 2%. The detector also has a good spatial resolution of 0.36 cm along the strip direction.