Absorbed dose measurements and calculations in phantoms for 1.5 to 50 keV photons.
A Monte Carlo code EGS4 expanded for low energy photon transport was validated by measuring absorbed doses in a phantom for 30 and 10 keV monoenergetic photons from synchrotron radiation. Using the EGS4 code, depth doses at 0.07 mm, 0.02 to 0.1 mm, and 10 mm in the ICRU slab phantoms were calculated for 1.5 to 50 keV photons using the updated photon cross section data PHOTX. The results show that the doses at 0.02 to 0.1 mm below 10 keV are practical indices of effective dose as calculated by others, based on the 1990 ICRP recommendations (1991).
Nariyama
N
N
Ship Research Institute, Tokyo, Japan.
Tanaka
S
S
Nakane
Y
Y
Namito
Y
Y
Hirayama
H
H
Ban
S
S
Nakashima
H
H
D006801:Humans; D008961:Models, Structural; D009010:Monte Carlo Method; D017785:Photons; D011834:Radiation Monitoring; D011874:Radiometry / Q000379:methods*; D012867:Skin / Q000528:radiation effects; D017356:Synchrotrons