Title :
Study of a PET detector module with LSO scintillation crystals and an APD array
Author :
Fremout, A. ; Chen, R. ; Bruyndonckx, P. ; Tavernier, S.
Author_Institution :
Vrije Univ., Brussels, Belgium
Abstract :
Detailed results are given for the study of the spatial resolution obtained with different configurations of LSO scintillation crystals read out by a Hamamatsu 2×8 APD array. Block detectors as well as small sited individual LSO crystals have been coupled to the APD matrix. Both one-to-one coupling and light sharing schemes were investigated. The spatial resolution is derived for each configuration. Two different configurations with two layers of LSO crystals shifted by half a crystal size with respect to each other are used for investigations on the depth-of-interaction (DOI) information. Prior to the spatial resolution measurements, a comparison of the light output for various crystal surface treatments and different optical coupling materials has been made
Keywords :
arrays; image resolution; positron emission tomography; solid scintillation detectors; APD array; Hamamatsu 2×8 APD array; LSO scintillation crystals; PET detector module; crystal size; depth-of-interaction information; light sharing schemes; nuclear medicine; optical coupling materials; small animal PET scanner; Crystalline materials; Crystals; Mirrors; Optical coupling; Optical materials; Optical refraction; Positron emission tomography; Sensor arrays; Solid scintillation detectors; Spatial resolution;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.949335
