Nonstationary radiation transfer in scattering media

Astrophysics ◽  
1976 ◽  
Vol 11 (3) ◽  
pp. 293-302 ◽  
Author(s):  
N. N. Rogovtsov ◽  
A. M. Samson
Keyword(s):  
Radiation Transfer ◽  
Scattering Media ◽  
Nonstationary Radiation

scholarly journals Численное моделирование миграции фотонов в однородных и неоднородных цилиндрических фантомах

2020 ◽  
Vol 128 (6) ◽  
pp. 832
Author(s):  
А.Ю. Потлов ◽  
С.В. Фролов ◽  
С.Г. Проскурин
Keyword(s):  
Radiation Transfer ◽  
Biological Tissues ◽  
Photon Density ◽  
Radiation Transfer Equation ◽  
Scattering Media ◽  
Soft Biological Tissues ◽  
Photon Diffusion ◽  
Low Coherence ◽  
The Brain ◽  
Pulsed Irradiation

The specific features of photon diffusion of low-coherence pulsed irradiation in phantoms of soft biological tissues (blood-saturated tissues of the brain, breast, etc.) are described. The results of photon migration simulation using the Diffusion Approximation to the Radiation Transfer Equation (RTE) are compared with ones of the Monte Carlo simulations. It has been confirmed that the Photon Density Normalized Maximum (PDNM) moves towards the center of the investigated object in case of relatively uniform and strongly scattering media. In the presence of inhomogeneities, type of the PDNM motion changes drastically. Presence of an absorbing inhomogeneity in the medium directs trajectory of the PDNM motion of towards the point symmetric to the inhomogeneity relative to the geometric center of the investigated object. In case of scattering the PDNM moves toward the direction of the center of the scattering inhomogeneity.

The radiation transfer in emitting, absorbing and scattering media of complex geometric form

1998 ◽  
Vol 41 (17) ◽  
pp. 2697-2704 ◽  
Author(s):  
O.G. Martynenko ◽  
M.L. German ◽  
V.P. Nekrasov ◽  
E.F. Nogotov
Keyword(s):  
Radiation Transfer ◽  
Geometric Form ◽  
Scattering Media
Sign in / Sign up

Export Citation Format

Share Document