Affiliations: Faculty of Electrical Engineering, University of
Belgrade, 11120 Belgrade, Republic of Serbia | Vinča Institute of Nuclear Science, Physics
Laboratory (010), 11001 Belgrade, Republic of Serbia
Note: [] Corresponding author. Predrag Marinković, Ph.D, Faculty of
Electrical Engineering, Bulevar kralja Aleksandra 73, PO BOX 35-54 University
of Belgrade, 11120 Belgrade, Republic of Serbia. Tel.: +381 11 324 84 64; Fax:
+381 11 324 86 81; E-mail: marinkovic@etf.bg.ac.yu
Abstract: Three-dimensional point-kernel multiple scatter model for
radiography simulation, based on dose X-ray buildup factors, is proposed and
validated to Monte Carlo simulation. This model embraces nonuniform attenuation
in object of imaging (patient body tissue). Photon multiple scattering is
treated as in the point-kernel integration gamma ray shielding problems via
scatter voxels. First order Compton scattering is described by means of
Klein-Nishina formula. Photon multiple scattering is accounted by using dose
buildup factors. The proposed model is convenient in those situations where
more exact techniques, like Monte Carlo, are not time consuming acceptable.
