Speaker
Christian Ritzer
(Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany)
Description
In order to further understand the PET/MRI scanner of our group, we measured the point spread function of a preclinical scintillation
crystal array with a pitch of 1 mm and a total size of 30 mm × 30 mm × 12 mm. It is coupled via a lightguide to a dSiPM from Philips Digital Photon
Counting, used on the TEK-setup. Crystal identification is done with a centre of gravity algorithm and the whole data analysis is performed with the same processing software as for the PET insert, giving comparable results. The beam is created with a 22 NA-Point-Source and a lead collimator, with 0.5 mm bore diameter. The algorithm sorted 62 % of the coincidences into the correct crystal.
Primary author
Christian Ritzer
(Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany)
Co-authors
Mr
David Schug
(Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany)
Mr
Patrick Hallen
(RWTH Aachen University)
Prof.
Volkmar Schulz
(Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany)
