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The Modelling of the acquiring of "raw" projection data in single-photon emission computed tomography
The statistical modeling software package of the data acquisition at examining patients by single-photon emission computed tomography has been developed and tested. The modeling was performed by the Monte Carlo method and included the interaction effects of gamma radiation with matter under radiation transferring through biological tissues and through the collimator-detector system. The calculation of the gamma quanta transferring through the collimator has been verified by simulating clinical "syringe test". Using the developed software package and the anthropomorphic mathematical model simulates a "virtual patient", the acquisition of "raw" projection data has been performed under conditions close to clinical practice. The images obtained are in agreement with clinical data. Keywords: gamma radiation, collimator, Monte Carlo, modeling, phantom.
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