Title :
Design of a new BaF2 PET module concept and preliminary evaluation results
Author :
Cléon, G. ; Allemand, R. ; Papillon, S. ; Pinot, L. ; Richard, A. ; Charon, Y. ; Laniéce, P. ; Ménard, L. ; Valentin, L. ; Mastrippolito, R.
Author_Institution :
Institut de Physique Nucleaire, Orsay, France
fDate :
2/1/2002 12:00:00 AM
Abstract :
We describe a new positron emission tomography (PET) detection module using BaF2 crystals. We use the separation between the fast (0.6 ns, 220 nm) and the slow (630 ns, 310 nm) scintillation component of the barium fluoride through an ultraviolet glass filter to code the interaction localization. The timing is done on the fast component and the spectroscopy on the slow component. The photoelectric yield of BaF2 crystals (10 × 10 × 30, 8 × 8 × 30, and 6 × 6 × 30 mm3) coupled to 1-in-diameter photomultiplier tubes has been measured to quantify the light losses due to this geometry. As a reference, we present simulations and measurements of the efficiency of these crystals for detection of 511-keV gammas in coincidence and a measurement of the time resolution of the system
Keywords :
barium compounds; coincidence techniques; gamma-ray detection; photomultipliers; position sensitive particle detectors; positron emission tomography; solid scintillation detectors; 0.6 ns; 220 nm; 310 nm; 511 keV; 630 ns; BaF2; PET module concept; coincidence measurements; efficiency; gamma-ray detection; in-diameter photomultiplier tubes; interaction localization; light losses; photoelectric yield; positron emission tomography detection module; scintillation component; spectroscopy; time resolution; timing; ultraviolet glass filter; Barium; Crystals; Filters; Glass; Optical coupling; Positron emission tomography; Solid scintillation detectors; Spectroscopy; Time measurement; Timing;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2002.998740
