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Montagnoli, G.; Stefanini, A.M.; Trotta, M.; Beghini, S.; Bettini, M.; Scarlassara, F.; Schiavon, V.; Corradi, L.; Behera, B.R.; Fioretto, E.; Gadea, A.; Latina, A.; Szilner, S.; Donà, L.; Rigato, M.; Kondratiev, N.A.; Chizhov, A. Yu; Kniajeva, G.; Kozulin, E.M.; Pokrovskiy, I.V.; Voskressensky, V.M.; Ackermann, D.
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 08/2005, Volume: 547, Issue: 2Journal Article
This paper describes the entrance detector of the magnetic spectrometer PRISMA recently installed at Legnaro. The detector is based on rectangular ( 80 × 100 mm 2 ) Micro-Channel Plates (MCP). It provides a fast time signal and its position-sensitive anode allows to extract the X and Y information. It exploits an electrostatic field for the acceleration of secondary electrons from a thin Carbon foil ( ≃ 20 μ g / cm 2 ) onto the MCP assembly. The electrons are guided by a parallel magnetic field. Good performances were obtained in the laboratory tests. The detector is presently installed at the entrance of PRISMA and gives resolutions ⩽ 400 ps in time, and 1 mm in both X and Y -axes, with efficiency ≃ 100 % , in typical experiments with heavy-ion beams.
