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Estimated spectrum of a 4‐MV therapeutic beam
Author(s) -
Ahuja Sain D.,
Steward Palmer G.,
Roy Tapankumar S.,
Slessinger Eric D.
Publication year - 1986
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 - 10.1118/1.595878
Subject(s) - monte carlo method , beam (structure) , spectrum (functional analysis) , computational physics , laplace transform , physics , spectral line , absorption spectroscopy , optics , mathematics , statistics , mathematical analysis , quantum mechanics
We have made a comparative investigation of the estimated spectra obtained by the Laplace transform analysis of the transmitted exposure data measured in an absorption study of a 4‐MV x‐ray beam. Four transform pair models currently used with this method have been evaluated. It has been determined that the Archer–Wagner model provides a valid representation of the measured transmission data and yields an estimated spectrum which most closely resembles a Monte Carlo spectrum calculated for a 4‐MV therapeutic x‐ray beam available from a typical medical accelerator.