1. PETIROC2 based readout electronics optimization for Gamma Cameras and PET detectors
- Author
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Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica, Universitat Politècnica de València. Instituto de Instrumentación para Imagen Molecular - Institut d'Instrumentació per a Imatge Molecular, Universitat Politècnica de València. Instituto Universitario Mixto de Biología Molecular y Celular de Plantas - Institut Universitari Mixt de Biologia Molecular i Cel·lular de Plantes, Ministerio de Economía, Industria y Competitividad, Monzó Ferrer, José María, Aguilar -Talens, Albert, González Montoro, Andrea, Lamprou,E., González Martínez, Antonio Javier, Hernández Hernández, Liczandro, Mázur, Dmytro, Colom Palero, Ricardo José, Benlloch Baviera, Jose María, Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica, Universitat Politècnica de València. Instituto de Instrumentación para Imagen Molecular - Institut d'Instrumentació per a Imatge Molecular, Universitat Politècnica de València. Instituto Universitario Mixto de Biología Molecular y Celular de Plantas - Institut Universitari Mixt de Biologia Molecular i Cel·lular de Plantes, Ministerio de Economía, Industria y Competitividad, Monzó Ferrer, José María, Aguilar -Talens, Albert, González Montoro, Andrea, Lamprou,E., González Martínez, Antonio Javier, Hernández Hernández, Liczandro, Mázur, Dmytro, Colom Palero, Ricardo José, and Benlloch Baviera, Jose María
- Abstract
[EN] Developing front-end electronics to improve charge detection and time resolution in gamma-ray detectors is one of the main tasks to improve performance in new multimodal imaging systems that merge information of Magnetic Resonance Imaging and Gamma Camera or PET tomographs. The aim of this work is to study the behaviour and to optimize the performance of an ASIC for PET and Gamma Camera applications based on SiPMs detectors. PETIROC2 is a commercial ASIC developed by Weeroc to provide accurate charge and time coincidence resolutions. It has 32 analog input channels that are independently managed. Each channel is divided into two signals, one for time stamping using a TDC and another for charge measurement. In this work, PETIROC2 is evaluated in an experimental setup composed of two pixelated LYSO crystals based detectors, each coupled to a Hamamatsu 4 x 4 SiPM array. Both detectors are working in coincidence with a separation distance between them that can be modified. In the present work, an energy resolution of 13 : 6% FWHM and a time coincidence resolution of 815 ps FWHM have been obtained. These results will be useful to optimize and improve PETIROC2 based PET and Gamma Camera systems.
- Published
- 2017