Radiative transfer with reciprocal transactions : Numerical method and its implementation

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Väisänen , T , Markkanen , J , Penttilä , A & Muinonen , K 2019 , ' Radiative transfer with reciprocal transactions : Numerical method and its implementation ' , PLoS One , vol. 14 , no. 1 , 0210155 . https://doi.org/10.1371/journal.pone.0210155

Title: Radiative transfer with reciprocal transactions : Numerical method and its implementation
Author: Väisänen, Timo; Markkanen, Johannes; Penttilä, Antti; Muinonen, Karri
Contributor organization: Particle Physics and Astrophysics
Planetary-system research
Department of Physics
Date: 2019-01-08
Language: eng
Number of pages: 24
Belongs to series: PLoS One
ISSN: 1932-6203
DOI: https://doi.org/10.1371/journal.pone.0210155
URI: http://hdl.handle.net/10138/298287
Abstract: We present a numerical method for solving electromagnetic scattering by dense discrete random media entitled radiative transfer with reciprocal transactions ((RT2)-T-2). The (RT2)-T-2 is a combination of the Monte Carlo radiative-transfer, coherent-backscattering, and superposition T-matrix methods. The applicability of the radiative transfer is extended to dense random media by incorporating incoherent volume elements containing multiple particles. We analyze the (RT2)-T-2 by comparing the results with the asymptotically exact superposition T-matrix method, and show that the (RT2)-T-2 removes the caveats of radiative-transfer methods by comparing it to the RT-CB. We study various implementation choices that result in an accurate and efficient numerical algorithm. In particular, we focus on the properties of the incoherent volume elements and their effects on the final solution.
Subject: DISCRETE RANDOM-MEDIA
MULTIPLE-SCATTERING
EM WAVES
T-MATRIX
SPHERES
LIGHT
EQUATIONS
114 Physical sciences
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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