Scientific Visualization, 2019, volume 11, number 2, pages 28 - 38, DOI: 10.26583/sv.11.2.03
Modeling of the spatial distribution of the scattered radiation intensity by atomic argon
Authors: M.V. Sapronov1,A, N.M. Skornyakova2,A
National Research University "MPEI"
1 ORCID: 0000-0002-8600-2036, maks-sapronov@yandex.ru
2 ORCID: 0000-0002-2919-6428, nmskorn@mail.ru
Abstract
The paper presents a developed program for modeling the light scattering by atoms of a monatomic substance, for example, argon based on the theory of G. Mie. The dynamics of the 3D model of the laser scattering indicatrix on a spherical particle whose parameters are chosen so that it can be considered a model of the argon atom is presented. Based on the 3D model of the scattering indicatrix, an algorithm for calculating the spatial distribution of the radiation intensity scattered by an ensemble of atoms is developed. The purpose of the simulation is to build the intensity distribution of the scattered radiation on the image plane of the receiving optical system, which, in turn, coincides with the plane of the CCD matrix. In order to find the power of the scattered radiation that falls on one pixel of the CCD matrix, it is necessary to sum the power of the radiation scattered by the particles in the voxel corresponding to the pixel, taking into account the spatial distribution of the probe radiation intensity over the voxel. The results of simulation of experiment on registration of power of Rayleigh scattered radiation are received.
Keywords: rayleigh scattering, computer modeling, 3D-visualization, scattering by an ensemble of monodisperse particles.
