PoDFluX: A new Monte Carlo ray-tracing model for powder diffraction and fluorescence

2009 ◽  
Vol 80 (7) ◽  
pp. 073903 ◽  
Author(s):  
Graeme M. Hansford
Keyword(s):  
Monte Carlo ◽  
Ray Tracing ◽  
Powder Diffraction ◽  
Ray Tracing Model

Theoretical simulation and analysis of large size BMP-LSC by 3D Monte Carlo ray tracing model

2017 ◽  
Vol 26 (5) ◽  
pp. 054201 ◽  
Author(s):  
Feng Zhang ◽  
Ning-Ning Zhang ◽  
Yi Zhang ◽  
Sen Yan ◽  
Sun Song ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Ray Tracing ◽  
Theoretical Simulation ◽  
Large Size ◽  
3D Monte Carlo ◽  
Ray Tracing Model

FluorWPS: A Monte Carlo ray-tracing model to compute sun-induced chlorophyll fluorescence of three-dimensional canopy

2016 ◽  
Vol 187 ◽  
pp. 385-399 ◽  
Author(s):  
Feng Zhao ◽  
Xu Dai ◽  
Wout Verhoef ◽  
Yiqing Guo ◽  
Christiaan van der Tol ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Chlorophyll Fluorescence ◽  
Ray Tracing ◽  
Three Dimensional ◽  
Ray Tracing Model

Understanding the instrumental profile of synchrotron radiation X-ray powder diffraction beamlines

2017 ◽  
Vol 24 (3) ◽  
pp. 622-635 ◽  
Author(s):  
Luca Rebuffi ◽  
Manuel Sánchez del Río ◽  
Edoardo Busetto ◽  
Paolo Scardi
Keyword(s):  
Monte Carlo ◽  
Synchrotron Radiation ◽  
Ray Tracing ◽  
Powder Diffraction ◽  
Monte Carlo Algorithm ◽  
Profile Function ◽  
Optical Elements ◽  
X Ray ◽  
Radiation Data ◽  
All Optical

A Monte Carlo algorithm has been developed to calculate the instrumental profile function of a powder diffraction synchrotron beamline. Realistic models of all optical elements are implemented in a ray-tracing software. The proposed approach and the emerging paradigm have been investigated and verified for several existing X-ray powder diffraction beamlines. The results, which can be extended to further facilities, show a new and general way of assessing the contribution of instrumental broadening to synchrotron radiation data, based on ab initio simulations.

scholarly journals Pairing Directional Solar Inputs From Ray Tracing to Solar Receiver/Reactor Heat Transfer Models on Unstructured Meshes: Development and Case Studies

2020 ◽  
Vol 143 (3) ◽  
Author(s):  
H. Evan Bush ◽  
Andrew J. Schrader ◽  
Peter G. Loutzenhiser
Keyword(s):  
Heat Transfer ◽  
Monte Carlo ◽  
Case Studies ◽  
Ray Tracing ◽  
Three Dimensional ◽  
Transfer Model ◽  
Reactor Model ◽  
Ansys Fluent ◽  
Ray Tracing Model ◽  
Transfer Models

Abstract A novel method for pairing surface irradiation and volumetric absorption from Monte Carlo ray tracing to computational heat transfer models is presented. The method is well-suited to directionally and spatially complex concentrated radiative inputs (e.g., solar receivers and reactors). The method employs a generalized algorithm for directly mapping absorbed rays from a Monte Carlo ray tracing model to boundary or volumetric source terms in the computational mesh. The algorithm is compatible with unstructured, two and three-dimensional meshes with varying element shapes. Four case studies were performed on a directly irradiated, windowed solar thermochemical reactor model to validate the method. The method was shown to conserve energy and preserve spatial variation when mapping rays from a Monte Carlo ray tracing model to a computational heat transfer model in ansys fluent.

INTERCOMPARATIVE STUDY OF LONG-YEAR WAVE HINDCASTING DATA SAMPLES BY USE OF BACKWARD RAY TRACING MODEL AND SWAN MODEL UNDER MSM-BASED WINDS CONDITION PROVIDED BY JMA

2018 ◽  
Vol 74 (4) ◽  
pp. I_457-I_462
Author(s):  
Masataka YAMAGUCHI ◽  
Hirokazu NONAKA ◽  
Yoshio HATADA ◽  
Yoshihiro UTSUNOMIYA ◽  
Kunimitsu INOUCHI ◽  
...  
Keyword(s):  
Ray Tracing ◽  
Swan Model ◽  
Wave Hindcasting ◽  
Ray Tracing Model
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