Title :
Electronics upgrade and crystal geometry optimization for a sub-millimeter small animal PET based on continuous crystals and SiPMs
Author :
Barrio, J. ; Cabello, Jorge ; Etxebeste, Ane ; Lacasta, Carlos ; Oliver, Josep F. ; Rafecas, Magdalena ; Solaz, Carles ; Stankova, V. ; Llosa, Gabriela
Author_Institution :
Inst. de Fis. Corpuscular, Univ. de Valencia, València, Spain
fDate :
Oct. 27 2013-Nov. 2 2013
Abstract :
A prototype of a high resolution small animal PET scanner with continuous LYSO crystals coupled to SiPM matrices has been developed. Images of point-like sources in different positions of the FOV have been obtained with a FWHM better than 1 mm. In the near future, a full-ring PET will be developed. Due to the increase in the number of detector heads, a new Data Acquisition (DAQ) system is needed. First tests with the VATA64HDR16 ASIC from Gamma Medica - IDEAS have been carried out. Also, the use of tapered crystals is being considered for reduction of the gaps between detectors and therefore increase the full-ring sensitivity.
Keywords :
application specific integrated circuits; cerium; data acquisition; elemental semiconductors; lutetium compounds; optimisation; photomultipliers; positron emission tomography; readout electronics; silicon; solid scintillation detectors; yttrium compounds; zoology; DAQ; Gamma Medica - IDEAS; LuYSiO:Ce; SiPM; VATA64HDR16 ASIC; continuous LYSO crystals; continuous crystals; crystal geometry optimization; data acquisition system; electronics upgrade; high resolution small animal PET scanner; silicon photomultipliers; submillimeter small animal PET; Application specific integrated circuits; Crystals; Detectors; Geometry; Positron emission tomography; Prototypes; Sensitivity;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2013 IEEE
Conference_Location :
Seoul
Print_ISBN :
978-1-4799-0533-1
DOI :
10.1109/NSSMIC.2013.6829095
