نتایج جستجو برای: dose calculation algorithm

تعداد نتایج: 1144675  

2009
Anneyuko I. Saito Jonathan G. Li Chihray Liu Kenneth R. Olivier James F. Dempsey

The aim of this study was to investigate the relative accuracy of megavoltage photon-beam dose calculations employing either 5 bulk densities or independent voxel densities determined by calibration of the CT Houndsfield number. Full-resolution CT and bulk density treatment plans were generated for 70 lung or esophageal cancer tumors (66 cases) using a commercial treatment planning system with ...

2015
John Eley Wayne Newhauser Kenneth Homann Rebecca Howell Christopher Schneider Marco Durante Christoph Bert

Equivalent dose from neutrons produced during proton radiotherapy increases the predicted risk of radiogenic late effects. However, out-of-field neutron dose is not taken into account by commercial proton radiotherapy treatment planning systems. The purpose of this study was to demonstrate the feasibility of implementing an analytical model to calculate leakage neutron equivalent dose in a trea...

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