scholarly journals Efficient Monte Carlo simulation reveal significant multiple scattering errors in underwater angular scattering measurements

2021 ◽  
Author(s):  
Håvard Ugulen ◽  
Håkon Sandven ◽  
Borge Hamre ◽  
Arne S Kristoffersen ◽  
Camilla Saetre
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Multiple Scattering ◽  
Angular Scattering ◽  
Scattering Measurements

scholarly journals Monte Carlo simulation of halos in the crystal clouds

2021 ◽  
Vol 2099 (1) ◽  
pp. 012067
Author(s):  
Q Mu ◽  
E G Kablukova ◽  
B A Kargin ◽  
S M Prigarin
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Ray Tracing ◽  
Multiple Scattering ◽  
Radiation Transfer ◽  
Cirrus Clouds ◽  
Ice Crystals ◽  
The Sun ◽  
Different Shapes

Abstract In this paper, we try to answer the question: how the multiple scattering, the sun elevation, shape and orientation of ice crystals in the cirrus clouds affect a halo pattern. To study the radiation transfer in optically anisotropic clouds, we have developed the software based on Monte Carlo method and ray tracing. In addition to halos, this software enables one to simulate “anti-halos”, which above the cloud layer can be seen by observers. We present the visualization of halos and anti-halos generated by the cirrus clouds for different shapes and orientations of ice crystals.

Monte-Carlo simulation of single-line resonance scattering in a rarefied gas

1991 ◽  
Vol 69 (8-9) ◽  
pp. 1146-1153 ◽  
Author(s):  
I. D. Lockerbie ◽  
W. S. C. Brooks ◽  
P. How ◽  
E. J. Llewellyn
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Multiple Scattering ◽  
Rarefied Gas ◽  
Resonant Scattering ◽  
Resonance Scattering ◽  
Single Line ◽  
Gas Temperature ◽  
Line Shapes ◽  
Simulation Results

A Monte-Carlo simulation of single-line resonant scattering in a rarefied gas is presented and the technique is applied to the interpretation of a rocket-borne resonance-lamp experiment. The simulation examines the case of an emitting and absorbing gas at the same temperature for a number of detector and source configurations. The distance from the last scatter point, the angular distribution of the detected scattered photons, and the line shape formed by the scattered photons, at the detector, are evaluated for these different configurations. The simulation results suggest that the scattering of the detected photon occurs very near to the rocket, and not necessarily in the traditional scattering region at the intersection of the detector and emitter normals. It is observed that multiple scattering plays an important role in the number of photons detected and that the apparent gas temperature, as exhibited by the line shapes of the scattered photons, is dependent upon the configuration of the experiment. The simulation results suggest that, for a resonance-scattering experiment to measure constituent concentrations, the experimental design must optimize the return signal and minimize the effect of multiple scattering. The results also suggest that the calibration procedures for resonance-scattering experiments must be made with a physical configuration and environment that is identical to that expected in the rocket flight.

scholarly journals Monte Carlo simulation of multiple scattering of elastic waves

2000 ◽  
Vol 105 (B4) ◽  
pp. 7873-7892 ◽  
Author(s):  
Ludovic Margerin ◽  
Michel Campillo ◽  
Bart Van Tiggelen
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Multiple Scattering ◽  
Elastic Waves ◽  
Scattering Of Elastic Waves

Effect of the multiple scattering of electrons in Monte Carlo simulation of LINACS

2008 ◽  
Vol 86 (1) ◽  
pp. 104-108 ◽  
Author(s):  
Manuel Vilches ◽  
Salvador García-Pareja ◽  
Rafael Guerrero ◽  
Marta Anguiano ◽  
Antonio M. Lallena
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Multiple Scattering

Monte Carlo Simulation of Polarization Lidar Multiple Scattering by Multi-Layer Discrete Random Media

2015 ◽  
Vol 42 (12) ◽  
pp. 1213001 ◽  
Author(s):  
孙贤明 Sun Xianming ◽  
肖赛 Xiao Sai ◽  
万隆 Wan Long ◽  
王海华 Wang Haihua ◽  
申晋 Shen Jin
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Multiple Scattering ◽  
Random Media ◽  
Discrete Random Media

Monte Carlo Simulation of Polarization Lidar Multiple Scattering nDepolarization by Water Cloud

2015 ◽  
Vol 42 (11) ◽  
pp. 1113005
Author(s):  
孙贤明 Sun Xianming ◽  
肖赛 Xiao Sai ◽  
万隆 Wan Long ◽  
王海华 Wang Haihua ◽  
申晋 Shen Jin
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Multiple Scattering ◽  
Water Cloud
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