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Title: Analysis of distortions in the velocity profiles of suspension flows inside a light-scattering medium upon their reconstruction from the optical coherence Doppler tomograph signal

Abstract

Model signals from one and two plane flows of a particle suspension are obtained for an optical coherence Doppler tomograph (OCDT) by the Monte-Carlo method. The optical properties of particles mimic the properties of non-aggregating erythrocytes. The flows are considered in a stationary scattering medium with optical properties close to those of the skin. It is shown that, as the flow position depth increases, the flow velocity determined from the OCDT signal becomes smaller than the specified velocity and the reconstructed profile extends in the direction of the distant boundary, which is accompanied by the shift of its maximum. In the case of two flows, an increase in the velocity of the near-surface flow leads to the overestimated values of velocity of the reconstructed profile of the second flow. Numerical simulations were performed by using a multiprocessor parallel-architecture computer. (laser applications in medicine)

Authors:
; ;  [1]
  1. Department of Physics, M.V. Lomonosov Moscow State University, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
21470852
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 35; Journal Issue: 11; Other Information: DOI: 10.1070/QE2005v035n11ABEH012792
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPUTERIZED SIMULATION; COMPUTERS; DOPPLER EFFECT; ERYTHROCYTES; LIGHT SCATTERING; MONTE CARLO METHOD; OPTICAL PROPERTIES; PARALLEL PROCESSING; PARTICLES; SIGNALS; SKIN; SUSPENSIONS; TOMOGRAPHY; BIOLOGICAL MATERIALS; BLOOD; BLOOD CELLS; BODY; BODY FLUIDS; CALCULATION METHODS; DIAGNOSTIC TECHNIQUES; DISPERSIONS; MATERIALS; ORGANS; PHYSICAL PROPERTIES; PROGRAMMING; SCATTERING; SIMULATION

Citation Formats

Bykov, A V, Kirillin, M Yu, and Priezzhev, A V. Analysis of distortions in the velocity profiles of suspension flows inside a light-scattering medium upon their reconstruction from the optical coherence Doppler tomograph signal. United States: N. p., 2005. Web. doi:10.1070/QE2005V035N11ABEH012792.
Bykov, A V, Kirillin, M Yu, & Priezzhev, A V. Analysis of distortions in the velocity profiles of suspension flows inside a light-scattering medium upon their reconstruction from the optical coherence Doppler tomograph signal. United States. doi:10.1070/QE2005V035N11ABEH012792.
Bykov, A V, Kirillin, M Yu, and Priezzhev, A V. Wed . "Analysis of distortions in the velocity profiles of suspension flows inside a light-scattering medium upon their reconstruction from the optical coherence Doppler tomograph signal". United States. doi:10.1070/QE2005V035N11ABEH012792.
@article{osti_21470852,
title = {Analysis of distortions in the velocity profiles of suspension flows inside a light-scattering medium upon their reconstruction from the optical coherence Doppler tomograph signal},
author = {Bykov, A V and Kirillin, M Yu and Priezzhev, A V},
abstractNote = {Model signals from one and two plane flows of a particle suspension are obtained for an optical coherence Doppler tomograph (OCDT) by the Monte-Carlo method. The optical properties of particles mimic the properties of non-aggregating erythrocytes. The flows are considered in a stationary scattering medium with optical properties close to those of the skin. It is shown that, as the flow position depth increases, the flow velocity determined from the OCDT signal becomes smaller than the specified velocity and the reconstructed profile extends in the direction of the distant boundary, which is accompanied by the shift of its maximum. In the case of two flows, an increase in the velocity of the near-surface flow leads to the overestimated values of velocity of the reconstructed profile of the second flow. Numerical simulations were performed by using a multiprocessor parallel-architecture computer. (laser applications in medicine)},
doi = {10.1070/QE2005V035N11ABEH012792},
journal = {Quantum Electronics (Woodbury, N.Y.)},
number = 11,
volume = 35,
place = {United States},
year = {Wed Nov 30 00:00:00 EST 2005},
month = {Wed Nov 30 00:00:00 EST 2005}
}