Title :
Design and performance of the HEAD PENN-PET scanner
Author :
Freifelder, Richard ; Karp, Joel S. ; Geagan, Michael ; Muehllehner, Gerd
Author_Institution :
Dept. of Radiol., Pennsylvania Univ., Philadelphia, PA, USA
fDate :
8/1/1994 12:00:00 AM
Abstract :
A new PET scanner for brain imaging (and animals) has been designed with very high sensitivity and spatial resolution. The design is an evolution of the PENN-PET scanner, which uses large position-sensitive NaI(Tl) detectors, with Anger-type positioning logic, and which allows 3D volume imaging, without septa. The new design is built with a single annular crystal coupled to 180 photomultiplier tubes, and uses local triggering electronics to subdivide the detector into small zones and to determine coincident events within the detector. The axial acceptance angle of ±27 deg, with a field-of-view of 25.6 cm, is larger than any currently operating PET scanner. Performance measurements are presented
Keywords :
brain; coincidence techniques; detector circuits; nuclear electronics; photomultipliers; position sensitive particle detectors; radioisotope scanning and imaging; scintillation counters; trigger circuits; 3D volume imaging; Anger-type positioning logic; HEAD PENN-PET scanner; NaI:Tl; animals; axial acceptance angle; brain imaging; coincident events; local triggering electronics; photomultiplier tubes; position-sensitive NaI(Tl) detectors; positron emission tomography; single annular crystal; Animals; Brain; Event detection; Head; High-resolution imaging; Logic design; Photomultipliers; Position sensitive particle detectors; Positron emission tomography; Spatial resolution;
Journal_Title :
Nuclear Science, IEEE Transactions on
