Speaker
Christian Ritzer
(Institute for Particle Physics and Astrophysics, ETH Zürich, Switzerland)
Description
The aim of the SAFIR collaboration is the construction of a positron emission tomography (PET) insert for a preclinical magnetic resonance imaging (MRI) device. The device will be able to handle high source activities and the target time for one PET image acquisition is 5 s. The mechanical design is very challenging, because the inner diameter of the MRI scanner’s bore limits the diameter of our insert to 200 mm.
The presented prototype consists of the same components as the full system. It fulfils the mechanical constraints, but consists of only two readout boards, each equipped with one detector module. The detector module has a matrix of 12 x 12 scintillator crystals with a pitch of 2.5 mm. We use one-to-one coupling to connect those to matching SiPM arrays. The analogue signals are digitalized with PETA6 Application Specific Integrated Circuits (ASICs) and the digital data are transmitted via an optical Ethernet link to our data acquisition computer.
In this work, we evaluate the energy resolution of the prototype. After linearisation and calibration, the singles energy resolution at the photo peak is 14.7 % full width at half maximum (FWHM).
Primary authors
Mrs
Afroditi Eleftheriou
(Institute for Pharmacology and Toxicology, University of Zürich, Switzerland)
Mrs
Agnieszka Zagozdzinska-Bochenek
(Institute for Particle Physics and Astrophysics, ETH Zürich, Switzerland)
Prof.
Alfred Buck
(Clinic of Nuclear Medicine, University of Zürich, Switzerland)
Prof.
Bruno Weber
(Institute for Pharmacology and Toxicology, University of Zürich, Switzerland)
Dr
Charalampos Tsoumpas
(Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, United Kingdom)
Christian Ritzer
(Institute for Particle Physics and Astrophysics, ETH Zürich, Switzerland)
Mr
Diogo di Califiori
(Institute for Particle Physics and Astrophysics, ETH Zürich, Switzerland)
Dr
Geoffrey Warnock
(Institute for Pharmacology and Toxicology, University of Zürich, Switzerland)
Prof.
Günther Dissertori
(Institute for Particle Physics and Astrophysics, ETH Zürich, Switzerland)
Dr
Ilarira Sacco
(Institute of Computer Engineering, University Heidelberg, Germany)
Dr
Jannis Fischer
(Institute for Particle Physics and Astrophysics, ETH Zürich, Switzerland)
Mr
Jisoo Kim
(Department of Nuclear and Quantum Engineering, KAIST, South Korea)
Dr
Josep F. Oliver
(Instituto de Física Corpuscular (CSIC-UV), Universitat de València, Spain)
Mr
Lubomir Djambazov
(Institute for Particle Physics and Astrophysics, ETH Zürich, Switzerland)
Prof.
Markus Rudin
(Institute for Biomedical Engineering, ETH Zürich, Switzerland)
Dr
Matthias Wzss
(Institute for Pharmacology and Toxicology, University of Zürich, Switzerland)
Dr
Michael Ritzert
(Institute of Computer Engineering, University Heidelberg, Germany)
Dr
Mikiko Ito
(Institute for Particle Physics and Astrophysics, ETH Zürich, Switzerland)
Dr
Paola Solevi
(Institute of Medical Technology, Otto-von-Guericke University Magdeburg, Germany)
Mrs
Parisa Khateri
(Institute for Particle Physics and Astrophysics, ETH Zürich, Switzerland)
Prof.
Peter Fischer
(Institute of Computer Engineering, University Heidelberg, Germany)
Mr
Robert Becker
(Institute for Particle Physics and Astrophysics, ETH Zürich, Switzerland)
Mr
Ulf Röser
(Institute for Particle Physics and Astrophysics, ETH Zürich, Switzerland)
Dr
Volker Commichau
(Institute for Particle Physics and Astrophysics, ETH Zürich, Switzerland)
Dr
Werner Lustermann
(Institute for Particle Physics and Astrophysics, ETH Zürich, Switzerland)
