Abstract
Electrons are a charged particle with a finite range directly proportional to energy. They are limited to more superficial depths than photons. Surface dose increases with energy, unlike photons. Simple dose calculations are based on electron dose to water, using SSD setup geometry. Density inhomogeneities greatly alter electron dose distributions. Electrons take the path of least resistance, increasing the dose to low-density structures that abut high-density structures. Matching Bolus and spoilers can increase superficial dose and decrease range. Obliquity can greatly increase superficial dose and decrease range.
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© 2014 Springer Science+Business Media New York
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Chang, D.S., Lasley, F.D., Das, I.J., Mendonca, M.S., Dynlacht, J.R. (2014). Dosimetry of Electron Beams. In: Basic Radiotherapy Physics and Biology. Springer, Cham. https://doi.org/10.1007/978-3-319-06841-1_10
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DOI: https://doi.org/10.1007/978-3-319-06841-1_10
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Publisher Name: Springer, Cham
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Online ISBN: 978-3-319-06841-1
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