Muon Ionization Cooling Experiment (MICE) and its goal to demonstrate the feasibility of ionization cooling represent the first step toward a neutrino factory. Muons in MICE are produced by pions which derive from the interaction of protons with a target. Muons being short lived particles, a special cooling procedure has to be developed, to be able to reduce the emittance quickly. MICE intends to measure the emittance value with a 0.1% accuracy before and after the cooling element; thus a detector able to reconstruct and identify individual particles is required. The presence of electrons due to muon decay introduces a systematic error on the emittance and cooling measurements. For this reason a particle identification system is being developed based on a totally active scintillator tracker/calorimeter (Electron–Muon Ranger (EMR)). The detector consists of 40 planes of extruded scintillator bars 1 m long; the bars are read out with 0.8 mm WLS fibers coupled to multianode photomultipliers. The readout segmentation will be chosen accordingly to the rate (600 good muons per 1 ms spill every 1 s). This paper describes the design, construction and test at the CERN PS T9-line of the first small size prototype of the EMR with full analog readout, consisting of eight layers (4 x and 4 y) with 10 bars 19 cm long each.

The prototype of the MICE Electron–Muon Ranger: Design, construction and test

LIETTI, DANIELA;V. Mascagna;PREST, MICHELA;
2009-01-01

Abstract

Muon Ionization Cooling Experiment (MICE) and its goal to demonstrate the feasibility of ionization cooling represent the first step toward a neutrino factory. Muons in MICE are produced by pions which derive from the interaction of protons with a target. Muons being short lived particles, a special cooling procedure has to be developed, to be able to reduce the emittance quickly. MICE intends to measure the emittance value with a 0.1% accuracy before and after the cooling element; thus a detector able to reconstruct and identify individual particles is required. The presence of electrons due to muon decay introduces a systematic error on the emittance and cooling measurements. For this reason a particle identification system is being developed based on a totally active scintillator tracker/calorimeter (Electron–Muon Ranger (EMR)). The detector consists of 40 planes of extruded scintillator bars 1 m long; the bars are read out with 0.8 mm WLS fibers coupled to multianode photomultipliers. The readout segmentation will be chosen accordingly to the rate (600 good muons per 1 ms spill every 1 s). This paper describes the design, construction and test at the CERN PS T9-line of the first small size prototype of the EMR with full analog readout, consisting of eight layers (4 x and 4 y) with 10 bars 19 cm long each.
2009
MICE Electron-Muon Ranger; scintillator; multianode PMT
Lietti, Daniela; Bari, M.; Bolognini, D.; Chimenti, P.; Giannini, G.; Hasan, S.; Iugovaz, D.; Graulich, J. S.; Mascagna, V.; Mattera, A.; Prest, Michela; Reia, S.; Vallazza, E.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11383/1708709
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