New Prototype Multi-gap Resistive Plate Chambers with Long Strips
Y.J. Sun, C. Li, M. Shao, B. Gui, Y.E. Zhao, H.F. Chen, Z.B. Xu, L.J., Ruan, G.J. Lin, X. Wang, Y. Wang, Z.B. Tang, G. Eppley, P. Fachini, M. Kohl,, J. Liu, W.J. Llope, R. Majka, T. Nussbaun, E. Ramberg, T. Sakuma, F. Simon,, N. Smirnov, B. Surrow, and D. Underwood
TL;DR
This paper introduces a new long-strip MRPC detector designed for large-area muon detection, demonstrating high time and spatial resolution suitable for high-energy physics experiments.
Contribution
The paper presents a novel long-strip MRPC design with improved timing and spatial resolution for large-area muon detection applications.
Findings
Time resolution of ~70 ps from cosmic ray tests
Detection efficiency exceeds 95%
Spatial resolution of ~1 cm along the strip
Abstract
A new kind of Multi-gap Resistive Plate Chamber (MRPC) has been built for the large-area Muon Telescope Detector (MTD) for the STAR experiment at RHIC. These long read-out strip MRPCs (LMRPCs) have an active area of 87.0 x 17.0 cm2 and ten 250 um-thick gas gaps arranged as a double stack. Each read-out strip is 2.5 cm wide and 90 cm long. The signals are read-out at both ends of each strip. Cosmic ray tests indicate a time resolution of ~70 ps and a detection efficiency of greater than 95%. Beam tests performed at T963 at Fermilab indicate a time resolution of 60-70 ps and a spatial resolution of ~1 cm along the strip direction.
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