Title :
YAP-PET: first results of a small animal positron emission tomograph based on YAP:Ce finger crystals
Author :
Del Guerra, A. ; Di Domenico, G. ; Scandola, M. ; Zavattini, G.
Author_Institution :
Dipt. di Fisica, INFN, Ferrara, Italy
fDate :
12/1/1998 12:00:00 AM
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 a Position Sensitive PhotoMultiplier Hamamatsu R2486-06. The system consists of four detectors on a rotating gantry with a variable diameter from 10 and 25 cm. The read-out and data acquisition system are handled by NIM-CAMAC standard electronics. The tomograph has a total Field Of View (FOV) of 4×4×4 cm3 that is appropriate for mice and rat studies. A spatial resolution ⩽2 mm over 3×3×3 cm3 FOV has been measured, with a peak sensitivity for a point source of about 614 cps/μCi for a gantry diameter of 15 cm and an energy threshold of 50 keV
Keywords :
biological techniques; cerium; image resolution; photomultipliers; positron emission tomography; yttrium compounds; 10 to 25 cm; 50 keV; NIM-CAMAC standard electronics; YAP-PET; YAP:Ce; YAP:Ce finger crystals; YAlO3:Ce; biological research instrumentation; data acquisition system; energy threshold; field of view; gantry diameter; mice studies; peak sensitivity; point source; position sensitive photomultiplier Hamamatsu R2486-06; rat studies; read-out; small animal positron emission tomograph; spatial resolution; Animals; Crystals; Data acquisition; Detectors; Energy measurement; Fingers; Mice; Photomultipliers; Radioactive decay; Spatial resolution;
Journal_Title :
Nuclear Science, IEEE Transactions on
