A novel Positron Emission Tomography system, based on plastic scintillators, is being developed by the J-PET collaboration. In this article we present the simulation results of the scatter fraction, representing one of the parameters crucial for background studies defined in the NEMA-NU-2-2012 norm. We elaborate an event selection methods allowing to suppress events in which gamma quanta were scattered in the phantom or underwent the multiple scattering in the detector. The estimated scatter fraction for the single-layer J-PET scanner varies from 37% to 53% depending on the applied energy threshold.
@article{arxiv.1602.05402,
title = {Scatter fraction of the J-PET tomography scanner},
author = {P. Kowalski and W. Wiślicki and L. Raczyński and D. Alfs and T. Bednarski and P. Białas and E. Czerwiński and A. Gajos and B. Głowacz and J. Jasińska and D. Kamińska and G. Korcyl and T. Kozik and W. Krzemień and E. Kubicz and M. Mohammad and Sz. Niedźwiecki and M. Pałka and M. Pawlik-Niedźwiecka and Z. Rudy and M. Silarski and J. Smyrski and A. Strzelecki and A. Wieczorek and B. Zgardzińska and M. Zieliński and P. Moskal},
journal= {arXiv preprint arXiv:1602.05402},
year = {2019}
}