Performance of shielded timing RPCs in a 12C fragmentation experiment

• DOI: 10.1016/j.nima.2004.07.005
• Publication Date: 2004-07-24T10:25:55Z
• Authors: 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
• Keywords: 0103 physical sciences; 01 natural sciences; 7. Clean energy

Abstract 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 × 2 × 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 ps σ t 80 ps with 3 σ -tails below 8%. High mechanical robustness and homogeneity of the physical properties along the longitudinal direction of the detector were also observed.