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- Title
Vpliv zmanjšanja simulacijskega volumna na napako in hitrost izračunov reflektance z metodo Monte Carlo.
- Authors
Bürmen, Miran
- Abstract
Light propagation in biological tissues formulated within the framework of the radiative transport equation is frequently simulated by stochastic Monte Carlo simulations. Such methodology is used in numerous experimental settings including spatially resolved reflectance measurements conducted by optical fiber probes. In this paper, we analyse the impact of the simulation volume on the computational time and relative error of the Monte Carlo simulated reflectance for an optical fiber probe with a linear fiber layout. The results show, that the largest relative reflectance error for a reduced simulation volume is observed for samples with low absorption and reduced scattering coefficients and for larger source detector separations. A subsequent analysis revealed that the reflectance error does not significantly depend on the anisotropy factor of the scattering phase function. A twofold reduction in the computational time of the Monte Carlo simulations can be attained without significantly affecting the accuracy of the computed reflectance for the given experimental setting. However, the computational time is improved only for the samples that exhibit low absorption (≈1 cm-1) and up to medium reduced scattering (≈ 30 cm-1) coefficients. Such optical properties can be found in many biological tissues, and in particular in purely scattering optical phantoms that are frequently used for validation and calibration of the Monte Carlo reflectance simulations.
- Subjects
LIGHT propagation; TISSUES; MONTE Carlo method; RADIATIVE transfer equation; COMPUTER simulation of radiative transfer; REFLECTANCE
- Publication
Electrotechnical Review / Elektrotehniski Vestnik, 2017, Vol 84, Issue 1/2, p61
- ISSN
0013-5852
- Publication type
Article