Title :
Scintillator and photodetectors comparison for compact gamma cameras
Author :
Garibaldi, F. ; Cusanno, F. ; Urciuoli, G.M. ; Cisbani, E. ; Pani, R. ; Soluri, A. ; Pellegrini, R. ; Scafè, R. ; Cinti, M.N. ; Trotta, G.
Author_Institution :
Lab. of Phys., ISS, Rome, Italy
Abstract :
The design of high resolution compact gamma cameras requires careful choice of scintillation crystal and photo-detector as well as their degree of pixellation. In this paper we evaluate the imaging properties of photo detectors for clinical imaging application. We compare the performances of two kinds of scintillators (CsI(Tl) and NaI(Tl)) coupled to PSPMT´s of the Hamamatsu R5900 family (C8, C12, M16 and M64). To compare the imaging properties, the PSPMT´s were optically coupled to CsI(Tl) and NaI (TI) scintillating arrays with pixel size of 2 × 2 mm2. Spatial resolution as well as energy resolution have been measured.
Keywords :
caesium compounds; gamma-ray detection; photomultipliers; positron emission tomography; single photon emission computed tomography; sodium compounds; solid scintillation detectors; CsI(Tl); CsI:Tl; Hamamatsu R5900 family; NaI(Tl); NaI:Tl; PET; clinical imaging application; energy resolution; high resolution compact gamma cameras; imaging properties; photo-detector; scintillating arrays; scintillation crystal; spatial resolution; Cameras; Energy resolution; High-resolution imaging; Optical arrays; Optical coupling; Optical imaging; Photodetectors; Pixel; Solid scintillation detectors; Spatial resolution;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2001 IEEE
Print_ISBN :
0-7803-7324-3
DOI :
10.1109/NSSMIC.2001.1008571
