Open AccessTotal number albedo and average cosine of the polar angle of low-energy photons reflected from water
Author(s) -
Srpko Marković,
Vladan Ljubenov,
R. Simović
Publication year - 2007
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/ntrp0702044m
Subject(s) - angle of incidence (optics) , polar , albedo (alchemy) , photon , range (aeronautics) , reflection (computer programming) , polar coordinate system , monte carlo method , total internal reflection , physics , energy (signal processing) , trigonometric functions , photon energy , optics , beam (structure) , computational physics , materials science , mathematics , geometry , statistics , art , programming language , quantum mechanics , astronomy , performance art , computer science , composite material , art history
The total number albedo and average cosine of the polar angle for water and initial photon energy range from 20 keV to 100 keV are presented in this pa per. A water shield in the form of a thick, homogenous plate and per pendicular incidence of the monoenergetic photon beam are assumed. The results were obtained through Monte Carlo simulations of photon reflection by means of the MCNP computer code. Calculated values for the total number albedo were compared with data previously published and good agreement was confirmed. The dependence of the average cosine of the polar angle on energy is studied in detail. It has been found that the total average cosine of the polar angle has values in the narrow interval of 0.66-0.67, approximately corresponding to the reflection angle of 48°, and that it does not depend on the initial photon energy