000195401 001__ 195401
000195401 005__ 20180913062315.0
000195401 0247_ $$2doi$$a10.1016/j.nima.2013.05.113
000195401 022__ $$a0168-9002
000195401 02470 $$2ISI$$a000327490400137
000195401 037__ $$aCONF
000195401 245__ $$aDetection sensitivity and light collection studies of an APD-based high packing-fraction LYSO:Ce matrix for PET applications
000195401 260__ $$aAmsterdam$$bElsevier Science Bv$$c2013
000195401 269__ $$a2013
000195401 300__ $$a4
000195401 336__ $$aConference Papers
000195401 520__ $$aThe ClearPEM is a dedicated APD-based PET detector for high-resolution breast cancer imaging. The detector module is composed of 12 LYSO:Ce crystal matrices, each with 4 x 8 individual crystals (2 x 2 x 20 mm(3)) optically coupled on both ends to S8550 Hamamatsu APD arrays for the scintillation light readout. Only 46% of the sensitive area of the detector is constituted by LYSO crystals. The inactive area is due to gaps between APD matrices, encapsulation and BaSO4 reflective walls. To improve the overall sensitivity of the system, a new compact crystal matrix geometry was designed to minimise these inactive parts. In the new crystal matrix geometry, 76% of the sensitive area of the detector is constituted by LYSO:Ce crystals and crystals with three different dimensions are needed. The different matching factors of cross-section between the APDs and the crystals require a study on the effects on the energy and time resolution, optical cross-talk and on depth-of-interaction capability. In this paper, we present an experimental study on the improvement of the sensitivity with this new compact matrix, and a characterisation of its effects on the overall detector performance. (C) 2013 Elsevier B.V. All rights reserved.
000195401 6531_ $$aPET
000195401 6531_ $$aPEM
000195401 6531_ $$aClearPEM
000195401 6531_ $$aLYSO:Ce
000195401 700__ $$aVeckalns, Viesturs$$uLab Instrumentacao & Fis Expt Particulas, P-1000149 Lisbon, Portugal
000195401 700__ $$aBugalho, Ricardo$$uLab Instrumentacao & Fis Expt Particulas, P-1000149 Lisbon, Portugal
000195401 700__ $$aSilva, Rui$$uLab Instrumentacao & Fis Expt Particulas, P-1000149 Lisbon, Portugal
000195401 700__ $$aNeves, Jorge A.$$uLab Instrumentacao & Fis Expt Particulas, P-1000149 Lisbon, Portugal
000195401 700__ $$aTavernier, Stefaan
000195401 700__ $$aZorraquino, Carlos$$uLab Instrumentacao & Fis Expt Particulas, P-1000149 Lisbon, Portugal
000195401 700__ $$aOrtigao, Catarina$$uLab Instrumentacao & Fis Expt Particulas, P-1000149 Lisbon, Portugal
000195401 700__ $$aRolo, Manuel$$uLab Instrumentacao & Fis Expt Particulas, P-1000149 Lisbon, Portugal
000195401 700__ $$aSilva, Jose C.$$uLab Instrumentacao & Fis Expt Particulas, P-1000149 Lisbon, Portugal
000195401 700__ $$aVarela, Joao$$uLab Instrumentacao & Fis Expt Particulas, P-1000149 Lisbon, Portugal
000195401 7112_ $$a13th Vienna Conference on Instrumentation$$cVienna, AUSTRIA$$dFEB 11-15, 2013
000195401 773__ $$j732$$q607-610$$tNuclear Instruments & Methods In Physics Research Section A-Accelerators Spectrometers Detectors And Associated Equipment
000195401 909C0 $$0252369$$pSB$$xU10077
000195401 909CO $$ooai:infoscience.tind.io:195401$$pconf$$pSB
000195401 937__ $$aEPFL-CONF-195401
000195401 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000195401 980__ $$aCONF