Modeling and experimental verification for a broad beam light transport in optical tomography.
This paper describes a general theoretical model for computing a broad beam excitation light transport in a 3D diffusion medium. The model is based on the diffusion approximation of the radiative transport equation. An analytical approach for the light propagation is presented by deriving a corresponding Green's function. A finite cylindrical domain with a rectangular cross section was considered as a 3D homogeneous phantom model. The results of the model are compared with corresponding experimental data. The measurements are done on solid and liquid phantoms replicating tissue-like optical properties.
Janunts
Edgar
E
Medical Optics at the Institute of Medical Physics, University of Erlangen-Nuremberg, Henkestr. 91, 91052 Erlangen, Germany. edgar.janunts@imp.uni-erlangen.de
Pöschinger
Thomas
T
Eisa
Fabian
F
Langenbucher
Achim
A
D003198:Computer Simulation; D007834:Lasers; D008027:Light; D008962:Models, Theoretical; D009391:Nephelometry and Turbidimetry; D019047:Phantoms, Imaging; D012542:Scattering, Radiation; D041622:Tomography, Optical / Q000379:methods*