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Scatter fraction of the J-PET tomography scanner

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arxiv 1602.05402 v1 pith:WGI4MP65 submitted 2016-02-17 physics.med-ph physics.ins-det

Scatter fraction of the J-PET tomography scanner

P. Kowalski , W. Wi\'slicki , L. Raczy\'nski , D. Alfs , T. Bednarski , P. Bia{\l}as , E. Czerwi\'nski , A. Gajos
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B. G{\l}owacz J. Jasi\'nska D. Kami\'nska G. Korcyl T. Kozik W. Krzemie\'n E. Kubicz M. Mohammad Sz. Nied\'zwiecki M. Pa{\l}ka M. Pawlik-Nied\'zwiecka Z. Rudy M. Silarski J. Smyrski A. Strzelecki A. Wieczorek B. Zgardzi\'nska M. Zieli\'nski P. Moskal
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classification physics.med-ph physics.ins-det
keywords fractionj-petscatterscannertomographyallowingappliedarticle
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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.

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