Title :
YAP-PET: a small animal positron emission tomograph based on YAP:Ce finger crystals
Author :
Guerra, A. Del ; Domenico, G. Di ; Scandola, M. ; Zavattini, G.
Author_Institution :
Dipt. di Fisica, INFN, Ferrara, Italy
Abstract :
The authors have built a small animal positron emission tomograph (YAP-PET) based on four matrices of 400 YAP:Ce finger crystals (2×2×30 mm3 each) coupled to Hamamatsu R2486-06 position sensitive photomultipliers. The system consists of four detectors on a rotating gantry with a variable diameter between 10 and 25 cm. The read-out and data acquisition system are handled by off-shelf electronics and are controlled by in house developed programs. The tomograph has a total FOV of 4×4×4 cm3 that is appropriate for mice and rat studies. A spatial resolution ⩽2 mm over the useful FOV of 2×2×2 cm3 has been measured, with an average sensitivity of about 730 cps/μCi for a gantry diameter of 15 cm and an energy threshold of 50 keV
Keywords :
biological techniques; cerium; data acquisition; image resolution; photomultipliers; positron emission tomography; yttrium compounds; 10 to 25 cm; 50 keV; Hamamatsu R2486-06 position sensitive photomultipliers; YAP-PET; YAP:Ce; YAP:Ce finger crystals; YAlO3:Ce; YAlO3:Ce; data acquisition system; detectors; energy threshold; field of view; mice studies; rat studies; rotating gantry; sensitivity; small animal positron emission tomograph; spatial resolution; Animals; Control systems; Crystals; Data acquisition; Detectors; Electric variables control; Fingers; Mice; Photomultipliers; Radioactive decay;
Conference_Titel :
Nuclear Science Symposium, 1997. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
0-7803-4258-5
DOI :
10.1109/NSSMIC.1997.670632
