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Geant4 Accuracy and Benchmarking in Electron/X-ray Radiation Therapy

This document outlines the accuracy and benchmarking of the Geant4 simulation toolkit, with a focus on electron and x-ray radiation therapy. Key investigations include thick-target bremsstrahlung measurements at 10-30 MV and methods for addressing pulse pile-up effects, background subtraction, and detector response unfolding. The work encompasses contributions from various notable researchers in the field and highlights significant findings from studies published in Medical Physics, enhancing our understanding of collimator effects and improving radiation therapy techniques.

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Geant4 Accuracy and Benchmarking in Electron/X-ray Radiation Therapy

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  1. Geant4 Accuracy and Benchmarking Bruce Faddegon, UCSF

  2. Geant4 e-/x-ray RT benchmarks • SLAC • Makoto Asai • Tsukasa Aso • Joseph Perl • Jane Tinslay

  3. Thick-target bremsstrahlung measurement at 10-30 MV • Subtract pile-up spectrum and bkg • Add counts lost to pulse pile-up • Unfold detector response • Add counts lost to attenuation and detector efficiency • Collimator effect BA Faddegon, CK Ross, DWO Rogers, Medical Physics 17(5):773-785, 1990 BA Faddegon, CK Ross, DWO Rogers, Medical Physics 18(4):727-739, 1991

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