A Multi-strip Multi-gap RPC Barrel for Time-of-Flight Measurements (CROSBI ID 177039)
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Podaci o odgovornosti
Kiš, Mladen ; Ciobanu, M. ; Deppner, I. ; Hildenbrand, K.D. ; Herrmann, N. ; Kang, T.I. ; Kim, Y.J. ; Koczon, P. ; Leifels, Y. ; Marquardt, M. ; Petrovici, M. ; Piasecki, K. ; Ryu, M.S. ; Schuettauf, A. ; Simion, V. ; Weinert, J. ; Zhang, X.
engleski
A Multi-strip Multi-gap RPC Barrel for Time-of-Flight Measurements
The FOPI detector [1] at the heavy-ion synchrotron SIS-18 at GSI in Darmstadt has upgraded part of its time-of-flight (ToF) system by adding a new sub-detector shell (called the MMRPC Barrel) that is made out of Multi-strip Multi-gap Resistive-Plate Counters (MMRPCs). The MMRPC Barrel has an active area of 5 m(2) covered by 2400 individual anode strips [2, 3] which are read out at both ends by custom-designed electronics [4, 5]. With these multi-strip anodes we have obtained an enhanced detector granularity with 95% efficiency and a ToF resolution sigma(ToF) better than 90 ps which increases the identification limit for charged kaons up to laboratory momenta of at least 1 GeV/c. In this paper we report on the design, construction and operational characteristics of the MMRPC Barrel and describe its performance during the first experiments.
resistive plate chambers; front-end electronics; FOPI; timing RPC; ToF; Multi-strip
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Podaci o izdanju
646 (1)
2011.
27-34
objavljeno
0168-9002
10.1016/j.nima.2011.02.076
