Compact X-rays detectors made of 1/2” or 1”: LaBr3:Ce crystals of cubic shape with SiPM array readout have been developed for the FAMU experiment at RIKEN-RAL. The aim is a precise measurement of the proton Zemach radius with incoming muons. Additional applications may be found in medical physics, such as PET, homeland security and gamma-ray astronomy. Due to the high photon yield of LaBr3:Ce it was possible to use a simple readout scheme based on CAEN V1730 digitizers. Detectors, using Hamamatsu S13361 or S14161 arrays, have good FWHM energy resolutions up to 3% (8%) at the Cs137 (Co57) peak, comparing well with the best results obtained with a photomultiplier's readout. Detailed studies were performed to correct online the drift with temperature of SiPM gain and to reduce the risetime/falltime of detectors’ signals, that increased going from 1/2” to 1” detectors, due to the larger capacity of the used SiPM arrays.

Bonesini, M., Benocci, R., Bertoni, R., Menegolli, A., Prata, M., Rossella, M., et al. (2023). Large area LaBr3:Ce crystals read by SiPM arrays with improved timing and temperature gain drift control. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 1046(11 January 2023) [10.1016/j.nima.2022.167677].

Large area LaBr3:Ce crystals read by SiPM arrays with improved timing and temperature gain drift control

Benocci R.;
2023

Abstract

Compact X-rays detectors made of 1/2” or 1”: LaBr3:Ce crystals of cubic shape with SiPM array readout have been developed for the FAMU experiment at RIKEN-RAL. The aim is a precise measurement of the proton Zemach radius with incoming muons. Additional applications may be found in medical physics, such as PET, homeland security and gamma-ray astronomy. Due to the high photon yield of LaBr3:Ce it was possible to use a simple readout scheme based on CAEN V1730 digitizers. Detectors, using Hamamatsu S13361 or S14161 arrays, have good FWHM energy resolutions up to 3% (8%) at the Cs137 (Co57) peak, comparing well with the best results obtained with a photomultiplier's readout. Detailed studies were performed to correct online the drift with temperature of SiPM gain and to reduce the risetime/falltime of detectors’ signals, that increased going from 1/2” to 1” detectors, due to the larger capacity of the used SiPM arrays.
Articolo in rivista - Articolo scientifico
SiPM; Temperature gain compensation; X-rays detectors;
English
30-ott-2022
2023
1046
11 January 2023
167677
reserved
Bonesini, M., Benocci, R., Bertoni, R., Menegolli, A., Prata, M., Rossella, M., et al. (2023). Large area LaBr3:Ce crystals read by SiPM arrays with improved timing and temperature gain drift control. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 1046(11 January 2023) [10.1016/j.nima.2022.167677].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/426540
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