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Magnetic field modification of electron‐beam dose distributions in inhomogeneous media
Author(s) -
Paliwal Bhudatt R.,
Wiley Albert L.,
Wessels B. W.,
Choi M. C.
Publication year - 1978
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.594438
Subject(s) - electron , dosimetry , magnetic field , charged particle , beam (structure) , cathode ray , radiation therapy , field (mathematics) , radiation , physics , computational physics , materials science , nuclear medicine , optics , nuclear physics , medicine , ion , radiology , mathematics , quantum mechanics , pure mathematics
Modern curative radiotherapy requires higher doses to the tumor volume and, necessarily, minimal doses to the surrounding normal tissues. Attempts to use heavy charged particles to achieve such optimization are currently under investigation in many centers. Our data indicate that a static, superimposed magnetic field on a clinical electron‐therapy beam also offers the capability of some ’'tailoring” of isodose distributions. Furthermore, a variable , superimposed magnetic field minimizes those tissue‐generated dose heterogeneities which are inherent with all charged‐particle beams. We suggest that magnetically modified, clinically available electron beams also offer a practical and less expensive means of achieving tailored, heterogeneity‐corrected isodose distributions.