PMID: 2509865Sep 1, 1989Paper

Electron dose calculation using multiple-scattering theory: second-order multiple-scattering theory

Medical Physics
David Jette, A Bielajew

Abstract

This article is part of a series on the calculation of electron dose using multiple-scattering theory. It presents systematically the second-order multiple-scattering theory which is a generalization of the (first-order) Fermi-Eyges theory, outlining its derivation and giving explicit formulas for its defining functions. The predictions of the Fermi-Eyges theory and of the second-order theory are compared with modified Monte Carlo calculations, demonstrating the increased accuracy of the latter multiple-scattering theory. We derive and compare broad-beam angular distributions for the two theories, and note the effect of large-angle scattering upon dose profiles. Finally, we present the second-order theory in Fourier-transformed space, which is appropriate to a high-speed dose-calculation algorithm using the fast Fourier transform (FFT) technique.

Citations

Jan 23, 1998·Computers in Biology and Medicine·S B JiangK M Ayyangar
Nov 2, 2015·Medical Physics·Regina RescignoDavid Brasse
Jan 1, 1997·Medical Physics·E W LarsenI A Bruinvis
Sep 30, 2000·Medical Physics·G A Sandison, A V Chvetsov
Apr 21, 2006·Physics in Medicine and Biology·Kent A GiffordFiras Mourtada
Mar 24, 1998·Physics in Medicine and Biology·B L WernerJ Pfund
Oct 26, 2000·Physics in Medicine and Biology·A V ChvetsovC Yeboah

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