Scatter fraction of the J-PET tomography scanner

Abstract

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.

arXiv comment14 pages, 5 figures

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Cited by in corpus (8)

• Feasibility study of the positronium imaging with the J-PET tomograph
• Simulating NEMA characteristics of the modular total-body J-PET scanner -- an economic total-body PET from plastic scintillators
• Estimating the NEMA characteristics of the J-PET tomograph using the GATE package
• Synchronisation and calibration of the 24-modules J-PET prototype with 300~mm axial field of view
• Commissioning of the J-PET detector in view of the positron annihilation lifetime spectroscopy
• Estimating relationship between the Time Over Threshold and energy loss by photons in plastic scintillators used in the J-PET scanner
• Feasibility study of the time reversal symmetry tests in decays of metastable positronium atoms with the J-PET detector
• Hit-time and hit-position reconstruction in strips of plastic scintillators using multi-threshold readouts