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arXiv 2003.089712020-03-19physics.ins-det

Ce:LaBr$_3$ crystals with SiPM array readout and temperature control for the FAMU experiment at RAL

M. Bonesini, R. Benocci, R. Bertoni, M. Clemenza, D. Ghittori, R. Mazza, E. Vallazza, A. deBari, A. Menegolli, M. Prata, M. Rossella, M. Baruzzo, E. Mocchiutti

备注：: 15th Topical Seminar on Innovative Particle and Radiation Detectors (IPRD19) 14-17 October 2019 Siena, Italy
DOI：: 10.1088/1748-0221/15/05/C05065

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Compact X-rays detectors made of 1/2 inch Ce:LaBr3 crystals of cubic shape with SiPM array readout have been developed for the FAMUexperiment at RIKEN-RAL, to instrument regions of difficult access. Due to the high photon yield of Ce:LaBr3 it was possible to use a simple readout scheme based on CAEN V1730 digitizers, without a dedicated amplification stage. The drift with temperature of SiPM gain was corrected by using CAEN A7885D regulated power supply chips with temperature feedback. Energy resolutions (FWHM) around 3:5% at the 137Cs peak and around 9% at the 57Co peak were obtained.

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