In this paper we present the time resolution measurements of the Lutetium–Yttrium Oxyorthosilicate (LYSO) calorimeter prototype for the Mu2e experiment. The measurements have been performed using the e− beam of the Beam Test Facility (BTF) in Frascati, Italy in the energy range from 100 to 400 MeV. The calorimeter prototype consisted of twenty five 30×30×130mm3 , LYSO crystals read out by 10×10mm2 Hamamatsu Avalanche Photodiodes (APDs). The energy dependence of the measured time resolution can be parametrized as σt(E)=a/E/GeV⊕b , with the stochastic and constant terms a=(51±1)ps and b=(10±4)ps , respectively. This corresponds to the time resolution of (162±4)ps at 100 MeV.
Measurement of time resolution of the Mu2e LYSO calorimeter prototype
Martini M;
2016-01-01
Abstract
In this paper we present the time resolution measurements of the Lutetium–Yttrium Oxyorthosilicate (LYSO) calorimeter prototype for the Mu2e experiment. The measurements have been performed using the e− beam of the Beam Test Facility (BTF) in Frascati, Italy in the energy range from 100 to 400 MeV. The calorimeter prototype consisted of twenty five 30×30×130mm3 , LYSO crystals read out by 10×10mm2 Hamamatsu Avalanche Photodiodes (APDs). The energy dependence of the measured time resolution can be parametrized as σt(E)=a/E/GeV⊕b , with the stochastic and constant terms a=(51±1)ps and b=(10±4)ps , respectively. This corresponds to the time resolution of (162±4)ps at 100 MeV.| File | Dimensione | Formato | |
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