Title :
Use of a YAP:Ce matrix coupled to a position-sensitive photomultiplier for high resolution positron emission tomography
Author :
Guerra, A. Del ; de Notaristefani, F. ; Di Domenico, G. ; Giganti, M. ; Pani, R. ; Piffanelli, A. ; Turra, A. ; Zavattini, G.
Author_Institution :
Dipartimento di Fisica, Ferrara Univ., Italy
Abstract :
A new scintillation detector system has been designed for application in high resolution Positron Emission Tomography (PET). The detector is a bundle of small YAlO3:Ce (YAP) crystals closely packed (0.2×0.2×3.0 cm3), coupled to a position sensitive photomultiplier tube (PSPMT). The preliminary results obtained for spatial resolution, time resolution, energy resolution and efficiency of two such detectors working in coincidence are presented. These are 1.2 mm for the FWHM spatial resolution, 2.0 ns for the FWHM time resolution and 20% for the FWHM energy resolution at 511 keV. The measured efficiency is (44±3)% with a 150 keV threshold and (20±2)% with a 300 keV threshold
Keywords :
biomedical equipment; cerium; image resolution; photomultipliers; positron emission tomography; solid scintillation detectors; yttrium compounds; 150 keV; 2.0 ns; 300 keV; 511 keV; PET; YAP:Ce; YAP:Ce matrix; YAlO3:Ce; detector efficiency; energy resolution; high resolution positron emission tomography; medical diagnostic imaging; nuclear medicine; position-sensitive photomultiplier; spatial resolution; time resolution; Biomedical imaging; Cathodes; Crystals; Detectors; Energy resolution; Photomultipliers; Positron emission tomography; Spatial resolution; Timing; Transmission line matrix methods;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference Record, 1995., 1995 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-3180-X
DOI :
10.1109/NSSMIC.1995.510438
