Field equivalence for clinical electron beams

F. M. Khan, P. D. Higgins

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


The concept of field equivalence for electron beams is examined using a pencil beam theory applied to circular fields. It is shown that a circular field can be found for a field of any size, shape and energy for which the depth dose distribution is approximately equivalent. The usefulness of the concept in clinical dosimetry is discussed.

Original languageEnglish (US)
Pages (from-to)N9-N14
JournalPhysics in Medicine and Biology
Issue number1
StatePublished - 2001


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