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Polarization of X‐Rays from the Interior of a Spherical Shell
Author(s) -
Derosa Pedro A.,
Mainardi Raúl T.
Publication year - 1996
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/(sici)1097-4539(199605)25:3<125::aid-xrs149>3.0.co;2-0
Subject(s) - monte carlo method , polarization (electrochemistry) , physics , spherical shell , radiation , degree of polarization , computational physics , axial symmetry , optics , shell (structure) , materials science , scattering , mathematics , chemistry , quantum mechanics , statistics , composite material
The polarization of x‐rays that scatter on the interior of a spherical shell is an efficient means of reducing the background in x‐ray fluorescence spectra. Integral expressions for the intensity and degree of polarization of radiation reaching the sample were derived without approximations and evaluated by numerical means. A Monte Carlo code was also developed that in a first step was used to calculate the intensity and degree of polarization of the radiation reaching the sample. Complete agreement was found between simulations and calculations, which is taken as a validation of the computer code. In a second step, the Monte Carlo simulation was used to treat more realistic situations such as a thick spherical shell with source and sample displaced axially from their initial positions.