Title :
Design of a new BaF2 PET module concept and preliminary evaluation results
Author :
Cléon, G. ; Allemand, R. ; Papillon, S. ; Pinot, L. ; Richard, A. ; Mastrippolito, R. ; Charon, Y. ; Laniéce, P. ; Ménard, L. ; Valentin, L.
Author_Institution :
Inst. de Phys. Nucl., Orsay, France
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 a UV glass filter to code the interaction localization. The timing is done on the fast component and the spectroscopy on the slow component. The photoelectronic yield of BaF 2 crystals (10×10×30, 8×8×30 and 6×6×30 mm3) coupled to 1´ diameter photomultiplier tubes has been measured to quantify the light losses due to this geometry. As reference we present simulations and measurements of the efficiency of this crystals for detection of 511 keV gammas in coincidence, and a measurement of the time resolution of the system
Keywords :
barium compounds; biomedical equipment; gamma-ray detection; photomultipliers; positron emission tomography; solid scintillation detectors; 511 keV; BaF2; UV glass filter; detection module; fast scintillation component; gamma detection efficiency; interaction localization; light losses; photoelectronic yield; photomultiplier tubes; positron emission tomography; slow scintillation component; time resolution; Barium; Crystals; Filters; Glass; Optical coupling; Positron emission tomography; Solid scintillation detectors; Spectroscopy; Time measurement; Timing;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.950021
