Title :
A new gamma camera for positron emission tomography
Author :
Schotanus, P. ; van Eijk, C.W.E. ; Hollander, R.W.
Author_Institution :
Dept. of Appl. Phys., Delft Univ. of Technol., Netherlands
fDate :
2/1/1989 12:00:00 AM
Abstract :
A camera consisting of two barium fluoride scintillation crystals sandwiched between three low-pressure photosensitive wire chambers is described. For 511-keV annihilation radiation, the detection efficiency is 42% and the position resolution is 5 mm (full width at half maximum) with a time resolution of 4 ns. The camera is insensitive to low-energy scattered radiation. The merits of the detector for application in a PET system are discussed. The advantages of such a system over a conventional ring system would be its high coincidence efficiency, small deadtime, and insensitivity to low-energy scattered radiation
Keywords :
barium compounds; biomedical equipment; computerised tomography; radioisotope scanning and imaging; BaF2; PET; annihilation radiation; coincidence efficiency; deadtime; detection efficiency; gamma camera; low-energy scattered radiation; low-pressure photosensitive wire chambers; position resolution; positron emission tomography; Barium; Cameras; Crystals; Energy resolution; Positron emission tomography; Radiation detectors; Solid scintillation detectors; Spatial resolution; Temperature; Wire;
Journal_Title :
Nuclear Science, IEEE Transactions on
