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Results for "Nicholas Zacharopoulos": 2 found

Evaluation of the Isopoint System for Coincidence of Radiation and Physical Isocenter Checks of Linear Accelerators

Authors: Peter Balter, Thomas Alexander Cuthbert, Weiliang Du, Song Gao, Nicholas Zacharopoulos

Affiliation: Aktina Medical Corp, The University of Texas MD Anderson Cancer Center

Abstract Preview: Purpose: The purpose of this study is to evaluate the accuracy and reproducibility of a commercial product for verifying the size, location, and coincidence of physical isocenter (P_iso) and radiation...

Relative Optimized Linearization for Film Dosimetry with Non-Uniformity Correction

Authors: Piotr Pater, Nicholas G. Zacharopoulos

Affiliation: McGill University, Medical Physics Unit, Gerald Bronfman Department of Oncology, McGill University

Abstract Preview: Purpose: To develop a method for accurate relative film dosimetry that incorporates non-uniformity
corrections.
Methods: The accuracy of Devic’s [1] linearization approach was evaluated using si...