Performance of shielded timing RPCs in a 12C fragmentation experiment

✍ Scribed by H. Alvarez Pol; R. Alves; A. Blanco; N. Carolino; J. Eschke; R. Ferreira-Marques; P. Fonte; J.A. Garzón; D. González Díaz; A. Pereira; J. Pietraszko; J. Pinhão; A. Policarpo; J. Stroth

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 660 KB
• Volume: 533
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2004.07.005

✦ Synopsis

We show the feasibility of large area timing RPC detectors for experiments dealing with fragmentation-like primary interactions and/or high detector multiplicities, without significative degradation of the detector capabilities. The tested prototype is constituted by three independent cells placed into grounded aluminium boxes, which reduce the cross-talk to the level of 0.4%. Each 2 Â 2 Â 60 cm 3 box consists of a 4-gap glass-aluminium RPC.

At 200 Hz=cm 2 the counters have shown a time resolution of 60 psos t o80 ps with 3s-tails below 8%. High mechanical robustness and homogeneity of the physical properties along the longitudinal direction of the detector were also observed.