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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 28 — Oct. 1, 1999
  • pp: 6075–6086

Hybrid Monte Carlo for photon transport through optically thick scattering media

Stéphane Chatigny, Michel Morin, Daniel Asselin, Yves Painchaud, and Pierre Beaudry  »View Author Affiliations


Applied Optics, Vol. 38, Issue 28, pp. 6075-6086 (1999)
http://dx.doi.org/10.1364/AO.38.006075


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Abstract

A Monte Carlo simulation code developed to model time-domain transillumination measurements with small-area detectors through an optically thick scattering slab is presented. A hybrid approach has been implemented to reduce calculation times. Most of the scattering slab is treated stochastically, albeit with variance reduction techniques and the isotropic diffusion similarity rule. The contribution to the output signal per unit area and time of photon packets propagating in a thin slice near the output face of the slab is calculated analytically after each propagation step. This approach drastically reduces the calculation time but produces spikes in the temporal signals.

© 1999 Optical Society of America

OCIS Codes
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(170.3830) Medical optics and biotechnology : Mammography
(170.5280) Medical optics and biotechnology : Photon migration
(170.6920) Medical optics and biotechnology : Time-resolved imaging
(170.7050) Medical optics and biotechnology : Turbid media

History
Original Manuscript: February 12, 1999
Revised Manuscript: June 21, 1999
Published: October 1, 1999

Citation
Stéphane Chatigny, Michel Morin, Daniel Asselin, Yves Painchaud, and Pierre Beaudry, "Hybrid Monte Carlo for photon transport through optically thick scattering media," Appl. Opt. 38, 6075-6086 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-28-6075

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