Open AccessDEPTH EQUALIZATION OF THE DOSE WHEN IRRADIATED BY ELECTRONS AT DIFFERENT ANGLES
Author(s) -
В.Г. Рудычев,
В.Т. Лазурик,
D.V. Rudychev,
Y.V. Rudychev
Publication year - 2020
Publication title -
problems of atomic science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 17
eISSN - 1562-6016
pISSN - 1682-9344
DOI - 10.46813/2020-129-120
Subject(s) - beam (structure) , electron , cathode ray , irradiation , materials science , optics , radiation , polyethylene , radiation dose , computational physics , physics , nuclear medicine , nuclear physics , composite material , medicine
The possibility of decreasing the depth-dose inhomogeneity in polyethylene with double-sided and one-sided electron irradiation at dierent angles with a maximum eciency of beam use is investigated. The least squares method was used to determine the optimal parameters, the thickness of the object, and the fraction of the beam incident on the object at angles Θ = 0◦ and Θ ≠ 0◦. When irradiating with a main beam with an angle Θ = 0◦ and an additional one with Θ = 70◦, it was shown that at an eciency of ≈ 97%, the technique allows reducing the deposited dose inhomogeneity in objects from 70, 51 and 38% to ∼17%, and with lters from Al (eciency ≈94%) to 5% for electron energies of 2,5, and 9MeV respectively.