A diffusion model for light scattering in ejecta

Fuente: arXiv
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Main Authors: Jayamanne, J. A. Don, Burie, J. -R., Durand, O., Pierrat, R., Carminati, R.
Format: Preprint
Published: 2025
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author Jayamanne, J. A. Don
Burie, J. -R.
Durand, O.
Pierrat, R.
Carminati, R.
author_facet Jayamanne, J. A. Don
Burie, J. -R.
Durand, O.
Pierrat, R.
Carminati, R.
contents We derive a diffusion equation for light scattering from ejecta produced by extreme shocks on metallic samples. This model is easier to handle than a more conventional model based on the Radiative Transfer Equation (RTE), and is a relevant tool to analyze spectrograms obtained from Photon Doppler Velocimetry (PDV) measurements in the deep multiple scattering regime. We also determine the limits of validity of the diffusive model compared to the RTE, based on a detailed analysis of various ejecta properties in configurations with increasing complexity.
format Preprint
id arxiv_https___arxiv_org_abs_2507_04972
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A diffusion model for light scattering in ejecta
Jayamanne, J. A. Don
Burie, J. -R.
Durand, O.
Pierrat, R.
Carminati, R.
Optics
We derive a diffusion equation for light scattering from ejecta produced by extreme shocks on metallic samples. This model is easier to handle than a more conventional model based on the Radiative Transfer Equation (RTE), and is a relevant tool to analyze spectrograms obtained from Photon Doppler Velocimetry (PDV) measurements in the deep multiple scattering regime. We also determine the limits of validity of the diffusive model compared to the RTE, based on a detailed analysis of various ejecta properties in configurations with increasing complexity.
title A diffusion model for light scattering in ejecta
topic Optics
url https://arxiv.org/abs/2507.04972