Characterization and performance of monolithic detector blocks with a dedicated ASIC front-end readout for PET imaging of the human brain
| Autor: | Jose Manuel Perez, R Cuypers, M. Canadas, Paz García de Acilu, C. Willmott, Iciar Sarasola Martin, Pedro Rato Mendes |
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| Rok vydání: | 2011 |
| Předmět: |
Physics
Nuclear and High Energy Physics medicine.medical_specialty Physics::Instrumentation and Detectors business.industry Physics::Medical Physics Detector Pet imaging Scintillator Coincidence Characterization (materials science) Front and back ends Optics Application-specific integrated circuit medicine Medical physics business Instrumentation Energy (signal processing) |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 633:S33-S35 |
| ISSN: | 0168-9002 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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