title: Methods of calculating the output factors of rectangular electron fields.
abstract: The dose output of a clinical electron beam exhibits a complex dependence upon field size, beam energy and collimation system design. A variety of methods have been developed in the past to calculate the output of an electron beam of arbitrary field dimensions. This paper describes three of these methods and indicates the advantages and disadvantages of each. Comparisons with measured data are also presented.
authors.affiliation: Division of Radiation Physics, Cancer Control Agency of British Columbia, Victoria Cancer Clinic, Canada.
authors.forename: B J
authors.initials: BJ
authors.lastname: McParland
mesh_terms: D000465:Algorithms; D004583:Electrons; D006801:Humans; D011874:Radiometry; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D011882:Radiotherapy, High-Energy; D012542:Scattering, Radiation