SiPM arrays and miniaturized readout electronics for compact gamma camera - Archive ouverte HAL
Article Dans Une Revue Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Année : 2015

SiPM arrays and miniaturized readout electronics for compact gamma camera

Résumé

This article reports on the design and features of a very compact and light gamma camera based on SiPM arrays and miniaturized readout electronics dedicated to tumor localization during radio-guided cancer surgery. This gamma camera, called MAGICS, is composed of four (2x2) photo-detection elementary modules coupled to an inorganic scintillator. The 256 channels photo-detection system covers a sensitive area of 54x53 m^2. Each elementary module is based on four (2x2) SiPM monolithic arrays, each array consisting of 16 SiPM photo-sensors (4x4) with3x3 mm^2 sensitive area, coupled to a miniaturized readout electronics and a dedicated ASIC. The overall dimensions of the electronics fit the size of the detector, enabling to assemble side-by-side several elementary modules in a close-packed arrangement. The preliminary performances of the system are very encouraging, showing an energy resolution of 9.8% and a spatial resolution of less than 1 mm at 122 keV.
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Dates et versions

hal-04212091 , version 1 (20-09-2023)

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N. Dinu, T. Ait Imando, A. Nagai, L. Pinot, V. Puill, et al.. SiPM arrays and miniaturized readout electronics for compact gamma camera. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2015, 787, pp.367-372. ⟨10.1016/j.nima.2015.01.083⟩. ⟨hal-04212091⟩
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