Mohsen Mashayekhi

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Introduction Range and diffusion of positron-emitting radiopharmaceuticals are important parameters for image resolution in positron emission tomography (PET). In this study, GEANT4 toolkit was applied to study positron diffusion in soft tissues with and without a magnetic field for six commonly used isotopes in PET imaging including 11 C, 13 N, 15 O, 18 F,(More)
AIM The purpose of this work was to estimate the dependency between the produced positron emitters and the proton dose distribution as well as the dependency between points of annihilation and the proton dose distribution. BACKGROUND One important feature of proton therapy is that, through the non-elastic nuclear interaction of protons with the target(More)
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