Magnetic enhancement of electron dose distribution in a phantom

Daniel P. Whitmire, Davy L. Bernard, Mary D. Peterson, James A. Purdy

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


We have measured the effect of a 10 kG magnetic field on the dose distribution of electrons in a polystyrene phantom. Isodensity plots and depth dose curves are presented for 22 and 28 MeV electron beams with and without the magnetic field applied. The measurements show that magnetic fields as low as 10 kG can produce a substantial modification of the absorbed dose distribution. When compared with the zero magnetic field distribution of the same energy, the magnetic field significantly improves the Dmax surface dose ratio and increases the fall off in dose past the Dmax region.

Original languageEnglish
Pages (from-to)127-131
Number of pages5
JournalMedical physics
Issue number2
StatePublished - Mar 1977


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