Characterization and Optimization of Silicon Photomultipliers for the Development of Intraoperative Beta Probes

N. Hudin (1) , L. Pinot (1) , N. Dinu (2) , Y. Charon (1) , V. Puill (2) , B. Janvier (1) , V. Chaumat (2) , M.-A. Duval (1) , D. Abi Haidar (1) , R. Siebert (1) , L. Ménard (1)

1 IMNC (UMR_8165) - Imagerie et Modélisation en Neurobiologie et Cancérologie
2 LAL - Laboratoire de l'Accélérateur Linéaire

This work reports the results of a comprehensive study aiming to characterize and optimize the performances of Silicon Photomultipliers (SiPM) as photodetectors for intraoperative beta detection of radiolabeled tumor tissues. In that purpose, we focused our measurements on the influence of temperature and operating voltage on dark noise (count rate and amplitude distribution), absolute photon detection efficiency and total gain of different SiPM devices from Hamamatsu. The impact of these parameters on the overall beta sensitivity of SiPM-based scintillation detectors was quantified as a function of the intensity of the incident light following a simple physical model that is shown to correspond well with measurements.

Mots clés: Silicon Photomultiplier; Photon Detection Efficiency; Beta Detection; Intraoperative Positron Probe

Domaines: Instrumentations et Détecteurs [physics.ins-det]

N. Hudin, L. Pinot, N. Dinu, Y. Charon, V. Puill, et al.. Characterization and Optimization of Silicon Photomultipliers for the Development of Intraoperative Beta Probes. 6th International Conference on New Developments in Photodetection (NDIP 2011), Jul 2011, Lyon, France. in press, 2011, ⟨10.1016/j.nima.2011.10.046⟩. ⟨in2p3-00640073⟩