Please use this identifier to cite or link to this item:
Title: Statistics of depth probed by cw measurement of photons in a turbid medium
Author: Weiss, George H. (George Herbert), 1930-
Porrà i Rovira, Josep Maria
Masoliver, Jaume, 1951-
Keywords: Biofísica
Física mèdica
Física estadística
Sistemes dinàmics diferenciables
Medical physics
Statistical physics
Differentiable dynamical systems
Issue Date: 1998
Publisher: The American Physical Society
Abstract: Photon migration in a turbid medium has been modeled in many different ways. The motivation for such modeling is based on technology that can be used to probe potentially diagnostic optical properties of biological tissue. Surprisingly, one of the more effective models is also one of the simplest. It is based on statistical properties of a nearest-neighbor lattice random walk. Here we develop a theory allowing one to calculate the number of visits by a photon to a given depth, if it is eventually detected at an absorbing surface. This mimics cw measurements made on biological tissue and is directed towards characterizing the depth reached by photons injected at the surface. Our development of the theory uses formalism based on the theory of a continuous-time random walk (CTRW). Formally exact results are given in the Fourier-Laplace domain, which, in turn, are used to generate approximations for parameters of physical interest.
Note: Reproducció del document publicat a:
It is part of: Physical Review e, 1998, vol. 58, núm. 5, p. 6431-6439
Related resource:
ISSN: 1063-651X
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

Files in This Item:
File Description SizeFormat 
152720.pdf216.35 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.