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arXiv · 2003.08971

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
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Abstract

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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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. 2020-03-19. Ce:LaBr$_3$ crystals with SiPM array readout and temperature control for the FAMU experiment at RAL. https://doi.org/10.1088/1748-0221/15/05/c05065

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