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Monte Carlo analysis of energy dependent anisotropy of bremsstrahlung x‐ray spectra
Author(s) -
Kákonyi Róbert,
Erdélyi Miklós,
Szabó Gábor
Publication year - 2009
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 - 10.1118/1.3176954
Subject(s) - monte carlo method , bremsstrahlung , physics , computational physics , monte carlo method for photon transport , photon , anisotropy , spectral line , dynamic monte carlo method , photon energy , optics , direct simulation monte carlo , mathematics , statistics , astronomy
The energy resolved emission angle dependence of x‐ray spectra was analyzed by MCNPX (Monte Carlo N particle Monte Carlo) simulator. It was shown that the spectral photon flux had a maximum at a well‐defined emission angle due to the anisotropy of the bremsstrahlung process. The higher the relative photon energy, the smaller the emission angle belonging to the maximum was. The trends predicted by the Monte Carlo simulations were experimentally verified. The Monte Carlo results were compared to both the Institute of Physics and Engineering in Medicine spectra table and the SPEKCALCV1.0 code.