| Autor: |
Hayakawa, CK, Hill, BY, You, JS, Bevilacqua, F, Spanier, J, Venugopalan, V |
| Jazyk: |
angličtina |
| Rok vydání: |
2004 |
| Zdroj: |
Hayakawa, CK; Hill, BY; You, JS; Bevilacqua, F; Spanier, J; & Venugopalan, V. (2004). Use of the δ-P1 approximation for recovery of optical absorption, scattering, and asymmetry coefficients in turbid media. Applied Optics, 43(24), 4677-4684. doi: 10.1364/AO.43.004677. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/22w366p3 |
| DOI: |
10.1364/AO.43.004677. |
| Popis: |
We introduce a robust method to recover optical absorption, reduced scattering, and single-scattering asymmetry coefficients (μa μ′s g1) of infinite turbid media over a range of (μ′s/μa) spanning 3 orders of magnitude. This is accomplished through the spatially resolved measurement of irradiance at source-detector separations spanning 0.25-8 transport mean free paths (l*). These measurements are rapidly processed by a multistaged nonlinear optimization algorithm in which the measured irradiances are compared with predictions given by the δ-P1 variant of the diffusion approximation to the Boltzmann transport equation. The ability of the δ-P1 model to accurately describe radiative transport within media of arbitrary albedo and on spatial scales comparable to l* is the key element enabling the separation of g1 from μ′s. © 2004 Optical Society of America. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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