Title :
Investigation of liquid xenon detectors for PET: Simultaneous reconstruction of light and charge signals from 511 keV photons
Author :
Amaudruz, P. ; Bryman, D. ; Kurchaninov, L. ; Lu, P. ; Marshall, C. ; Martin, J.P. ; Muennich, A. ; Retiere, F. ; Sher, A.
Author_Institution :
TRIUMF, Vancouver
fDate :
Oct. 26 2007-Nov. 3 2007
Abstract :
We investigated the detection of gamma rays in a small liquid xenon detector to assess elements of the performance for positron emission tomography. Scintillation light was detected by large area avalanche photodiodes while the ionization electrons were measured on the anode of a time projection chamber after drifting up to 3 cm. The optimum running conditions have been investigated as a function of electric field. An energy resolution < 4% (rms) was achieved by combining scintillation light and ionization charge.
Keywords :
avalanche photodiodes; gamma-ray detection; image reconstruction; liquid scintillation detectors; medical image processing; positron emission tomography; PET; avalanche photodiodes; electron volt energy 511 keV; energy resolution; gamma rays detection; ionization charge; liquid xenon detectors; positron emission tomography; scintillation light detection; signal reconstruction; time projection chamber; Area measurement; Avalanche photodiodes; Electrons; Gamma ray detection; Gamma ray detectors; Gamma rays; Ionization; Positron emission tomography; Solid scintillation detectors; Xenon;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0922-8
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2007.4436738
