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Proceedings Paper

Monte-Carlo simulation of photon trans-illumination time of flight
Author(s): Paulino Vacas-Jacques; Marija Strojnik; Gonzalo Paez
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Paper Abstract

We present a Monte Carlo (MC) program for determining the temporal behavior of radiation in turbid media, in general, and a tissue, in particular. An object-oriented MC program with flexibility for parallel implementation, and for performing stochastic analysis, is described. We determine the temporal probability distribution functions for three tissues: I ) a lipid-based tissue phantom, II ) a healthy dental tissue, and III ) a dental tissue with caries. The expected time of flight for transmitted radiation is calculated. Signal-to-noise ratios (SNR) are then obtained for several temporal thresholds. By restraining the time threshold, a two orders of magnitude increase in SNR is predicted. A multivariate analysis is finally proposed to complement the discrimination process, necessary for trans-illumination interferometry.

Paper Details

Date Published: 18 July 2007
PDF: 12 pages
Proc. SPIE 6631, Novel Optical Instrumentation for Biomedical Applications III, 663114 (18 July 2007); doi: 10.1117/12.728039
Show Author Affiliations
Paulino Vacas-Jacques, Ctr. de Investigaciones en Óptica (Mexico)
Marija Strojnik, Ctr. de Investigaciones en Óptica (Mexico)
Gonzalo Paez, Ctr. de Investigaciones en Óptica (Mexico)

Published in SPIE Proceedings Vol. 6631:
Novel Optical Instrumentation for Biomedical Applications III
Christian D. Depeursinge, Editor(s)

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