A Finite-Difference-Method Solution to Two-dimensional Steady-State Radiative Transfer Equation
| Autor: | 李娇 Li Jiao, 高峰 Gao Feng, 金蒙 Jin Meng, 赵会娟 Zhao Huijuan |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Physics
Steady state Photon Discretization Scattering business.industry Finite difference method Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing) Monte Carlo method for photon transport Atomic and Molecular Physics and Optics Diffuse optical imaging Computational physics Optics Radiative transfer business |
| Zdroj: | ACTA PHOTONICA SINICA. 39:1594-1601 |
| ISSN: | 1004-4213 |
| DOI: | 10.3788/gzxb20103909.1594 |
| Popis: | A novel finite difference method (FDM) solution to the 2-dimensional time-independent radiative transfer equation (RTE) is proposed for small-animal imaging applications, which is based on the real physics of 3-dimensional scattering of a photon in turbid medium. The influences of the angular discretization and the spatially meshing grids on the accuracy of FDM-RTE solution are investigated and a comparison is made between the FDM-RTE calculations to the relevant Monte-Carlo simulation ones for a validation of the proposed method. The comparison shows that, as the number of the discretized solid angles is over 80, the accuracy of the FDM-RTE calculated forward photon density is insensitive to the spatially meshing grids on the transmission and side surfaces but on the reflection surface. This study provides a viable methodology to the development of the RTE-based Diffuse Optical Tomography(DOT) technology. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|