LAILA is a miniaturized eight-channel electronic readout system for compact γ-ray detectors, combining high-resolution spectroscopy capability with position sensitivity. Compactness is achieved by the combination of a novel CMOS front-end ASIC (Application-Specific Integrated Circuit) for analog processing of a large signal current from Silicon PhotoMultiplier (SiPM) solid-state photodetectors, with a microcontroller-based data acquisition system. The adoption of automatic gain regulation in the gated-integrator stage of the ASIC offers an 84 dB dynamic range, combining single-photon sensitivity with an extended input photon energy range (20 keV–4 MeV, using 30 μm-cell SiPMs). Using this module with properly merged 144 SiPM pixels coupled to a 3 in.-thick lanthanum bromide scintillation crystal, a 3% energy resolution at 662 keV and 1 cm spatial resolution in the estimation of the interaction coordinates are experimentally demonstrated in this work.
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June 2021
Research Article|
June 21 2021
Miniaturized USB-powered multi-channel module for gamma spectroscopy and imaging
Special Collection:
Advances in Measurements and Instrumentation Leveraging Embedded Systems
Luca Buonanno
;
Luca Buonanno
1
Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria
, 20133 Milano (MI), Italy
2
Istituto Nazionale di Fisica Nucleare, Sezione di Milano
, 20133 Milano (MI), Italy
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Davide Di Vita
;
Davide Di Vita
1
Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria
, 20133 Milano (MI), Italy
2
Istituto Nazionale di Fisica Nucleare, Sezione di Milano
, 20133 Milano (MI), Italy
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Marco Carminati
;
Marco Carminati
a)
1
Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria
, 20133 Milano (MI), Italy
2
Istituto Nazionale di Fisica Nucleare, Sezione di Milano
, 20133 Milano (MI), Italy
a)Author to whom correspondence should be addressed: marco1.carminati@polimi.it
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Franco Camera;
Franco Camera
2
Istituto Nazionale di Fisica Nucleare, Sezione di Milano
, 20133 Milano (MI), Italy
3
Università degli Studi di Milano, Dipartimento di Fisica
, 20133 Milano (MI), Italy
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Carlo Fiorini
Carlo Fiorini
1
Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria
, 20133 Milano (MI), Italy
2
Istituto Nazionale di Fisica Nucleare, Sezione di Milano
, 20133 Milano (MI), Italy
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a)Author to whom correspondence should be addressed: marco1.carminati@polimi.it
Note: Paper published as part of the Special Topic on Advances in Measurements and Instrumentation Leveraging Embedded Systems.
Rev. Sci. Instrum. 92, 063306 (2021)
Article history
Received:
March 12 2021
Accepted:
June 07 2021
Citation
Luca Buonanno, Davide Di Vita, Marco Carminati, Franco Camera, Carlo Fiorini; Miniaturized USB-powered multi-channel module for gamma spectroscopy and imaging. Rev. Sci. Instrum. 1 June 2021; 92 (6): 063306. https://doi.org/10.1063/5.0050210
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