%0 Journal Article
%A Auffray, E.
%A Hadj, F. Ben Mimoun Bel
%A Cortinovis, Daniele
%A Doroud, K.
%A Garutti, E.
%A Lecoq, P.
%A Liu, Z.
%A Martinez, R.
%A Paganoni, M.
%A Pizzichemi, M.
%A Silenzi, A.
%A Xu, C.
%A Zvolský, M.
%T Characterization studies of silicon photomultipliers and crystals matrices for a novel time of flight PET detector
%J Journal of Instrumentation
%V 10
%N 06
%@ 1748-0221
%C London
%I Inst. of Physics
%M PUBDB-2016-04019
%M arXiv:1501.04233
%P P06009
%D 2015
%X his paper describes the characterization of crystal matrices and silicon photomulti-plier arrays for a novel Positron Emission Tomography (PET) detector, namely the external plateof  the  EndoTOFPET-US  system.   The  EndoTOFPET-US  collaboration  aims  to  integrate  Time-Of-Flight PET with ultrasound endoscopy in a novel multimodal device, capable to support thedevelopment of new biomarkers for prostate and pancreatic tumors.  The detector consists in twoparts:  a PET head mounted on an ultrasound probe and an external PET plate.  The challenginggoal of 1 mm spatial resolution for the PET image requires a detector with small crystal size, andtherefore high channel density:  4096 LYSO crystals individually readout by Silicon Photomulti-pliers (SiPM) make up the external plate. The quality and properties of these components must beassessed before the assembly.  The dark count rate, gain, breakdown voltage and correlated noiseof the SiPMs are measured, while the LYSO crystals are evaluated in terms of light yield and en-ergy resolution.  In order to effectively reduce the noise in the PET image, high time resolutionfor the gamma detection is mandatory. The Coincidence Time Resolution (CTR) of all the SiPMsassembled with crystals is measured, and results show a value close to the demanding goal of 200ps FWHM. The light output is evaluated for every channel for a preliminary detector calibration,showing an average of about 1800 pixels fired on the SiPM for a 511 keV interaction. Finally, theaverage energy resolution at 511 keV is about 13 
%F PUB:(DE-HGF)29 ; PUB:(DE-HGF)16
%9 ReportJournal Article
%U <Go to ISI:>//WOS:000358004200025
%R 10.1088/1748-0221/10/06/P06009
%U https://bib-pubdb1.desy.de/record/309839