Effective Doses and Organ Doses per Unit Fluence Calculated for Monoenergetic 0.1 MeV to 100 MeV Electrons by the MIRD-5 Phantom

Abstract

To determine quantities for radiation protection against high energy electrons, such as those from LINAC, the organ doses and effective doses were calculated using EGS-4 Monte Carlo simulation code and a MIRD-5 mathematical human phantom. Conversion coefficients for the incident fluence to the organ dose equivalent, to the effective dose, and to the effective dose equivalent for monoenergetic electrons were obtained for AP and PA irradiation geometries at incident energies from 0.1 to 100 MeV. The agreement between the results of the present study of effective doses and those of other studies is acceptable within the statistical uncertainties. At energies lower than 10 MeV, the skin sensitive layer was taken into account.