Characterization and performance of monolithic detector blocks with a dedicated ASIC front-end readout for PET imaging of the human brain

We are developing a human brain PET scanner prototype compatible with MRI based on monolithic scintillator crystals, APD matrices and a dedicated ASIC front-end readout. In this work we report on the performance of individual detector modules and on the operation of such modules in PET coincidence....

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2011-05, Vol.633, p.S33-S35
Main Authors: Rato Mendes, Pedro, Sarasola Martín, Icíar, Cañadas, Mario, de Acilu, Paz García, Cuypers, Robin, Manuel Pérez, José, Willmott, Carlos
Format: Article
Language:English
Subjects:
ASIC front-end readout
Monolithic detector blocks
Positron emission tomography (PET)
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Summary:We are developing a human brain PET scanner prototype compatible with MRI based on monolithic scintillator crystals, APD matrices and a dedicated ASIC front-end readout. In this work we report on the performance of individual detector modules and on the operation of such modules in PET coincidence. Results will be presented on the individual characterization of detector blocks and its ASIC front-end readout, with measured energy resolutions of 13% full-width half-maximum (FWHM) at 511 keV and spatial resolutions of the order of 2 mm FWHM. First results on PET coincidence performance indicate spatial resolutions as good as 2.1 mm FWHM for SSRB/FBP reconstruction of tomographic data obtained using a simple PET demonstrator based on a pair of monolithic detector blocks with ASIC readout.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2010.06.113