The slab albedo problem for the triplet scattering kernel with modified FNmethod

Kerntechnik ◽  
2016 ◽  
Vol 81 (6) ◽  
pp. 671-675
Author(s):  
D. Türeci
Keyword(s):  
Albedo Problem ◽  
Scattering Kernel

New scattering kernel for gas-surface interaction

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 1000-1011
Author(s):  
C. Cercignani ◽  
M. Lampis
Keyword(s):  
Surface Interaction ◽  
Scattering Kernel

DIFFUSION APPROXIMATION FOR TRANSPORT PROCESSES WITH GENERAL REFLECTION BOUNDARY CONDITIONS

2006 ◽  
Vol 16 (05) ◽  
pp. 717-762 ◽  
Author(s):  
CRISTINA COSTANTINI ◽  
THOMAS G. KURTZ
Keyword(s):  
Boundary Conditions ◽  
Stochastic Averaging ◽  
Transport Processes ◽  
Collision Kernel ◽  
Diffusion Approximations ◽  
Transport Models ◽  
Scattering Kernel ◽  
Reflection Boundary ◽  
Averaging Techniques ◽  
Number Of Particles

Diffusion approximations are obtained for space inhomogeneous linear transport models with reflection boundary conditions. The collision kernel is not required to satisfy any balance condition and the scattering kernel on the boundary is general enough to include all examples of boundary conditions known to the authors (with conservation of the number of particles) and, in addition, to model the Debye sheath. The mathematical approach does not rely on Hilbert expansions, but rather on martingale and stochastic averaging techniques.

Time-dependent albedo problem for quadratic anisotropic scattering

Kerntechnik ◽  
2007 ◽  
Vol 72 (1-2) ◽  
pp. 59-65 ◽  
Author(s):  
R. G. Türeci ◽  
D. Türeci
Keyword(s):  
Anisotropic Scattering ◽  
Time Dependent ◽  
Albedo Problem

scholarly journals An investigation of low-energy photon reflection from the iron target

2004 ◽  
Vol 19 (1) ◽  
pp. 39-45 ◽  
Author(s):  
Srpko Markovic ◽  
Rodoljub Simovic ◽  
Vladan Ljubenov
Keyword(s):  
Free Surface ◽  
Thomson Scattering ◽  
Photon Flux ◽  
Scattered Photon ◽  
Scattering Method ◽  
Scattering Function ◽  
Albedo Problem ◽  
Low Energies ◽  
Homogeneous Plane ◽  
Comparison Of The Results

For the photon transport kernel in form of the Thomson scattering function and a restrictive photon diffusion directed only toward free surface, several exact expressions of back scattered fluxes are demonstrated. The solving approach was established on a lemma proved by Placzek combined with the Fourier analytic inversion technique or the order of scattering method. Albedo problem in case of the homogeneous plane shield of iron subjected to the photons normally incident on the free surface is treated. Comparison of the results obtained by the analytical and Monte Carlo methods for the reflection of 40 and 60 keV photons from iron target confirms the domination of the single scattered photon flux and the strong influence of the scattering function anisotropy in reflection process at low energies.

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