Open AccessPhoton albedo for water, concrete, and iron at normal incidence, and dependence on the thickness of reflecting material
Author(s) -
M Vladimir Markovic,
Dragana Krstić,
N. Stevanović,
D. Nikezić
Publication year - 2013
Publication title -
nuclear technology and radiation protection
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.31
H-Index - 16
eISSN - 1452-8185
pISSN - 1451-3994
DOI - 10.2298/ntrp1301036m
Subject(s) - albedo (alchemy) , photon , electromagnetic shielding , angle of incidence (optics) , materials science , photon energy , optics , physics , computational physics , composite material , art , performance art , art history
Total number and angular albedo were calculated for commonly used shielding materials, water, concrete, and iron, for photons with initial energies from 10 keV up to 10 MeV and normal incident angle. Influence of material thickness on total number albedo was also investigated. Double differential albedo was determined from simulation of photon transport through materials by using PENELOPE and MCNP software. Backscattered photons were scored and grouped in equal intervals of energy and angle. Analytical expressions for angular and total number albedo as a function of initial energy were obtained. It was shown that angular albedo can be determined with the same formula for three examined materials. Corresponding analytical expressions for number albedo as a function of material thickness were presented in this paper. [Projekat Ministarstva nauke Republike Srbije, br. 171021