A comparative study of leakage and diffusion coefficient models for few-group cross section generation with the Monte Carlo method

2016 ◽  
Vol 90 ◽  
pp. 353-363
Author(s):  
E. Dorval
Keyword(s):  
Monte Carlo ◽  
Diffusion Coefficient ◽  
Monte Carlo Method ◽  
Comparative Study ◽  
Cross Section ◽  
The Monte Carlo Method ◽  
And Diffusion

Mathematical verification of the Monte Carlo maximum cross-section technique

2015 ◽  
Vol 21 (4) ◽  
Author(s):  
Victor S. Antyufeev
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Cross Section ◽  
Path Length ◽  
Radiation Transport ◽  
Free Path Length ◽  
Maximum Cross Section ◽  
The Monte Carlo Method ◽  
Section Technique ◽  
Probabilistic Proof

AbstractMaximum cross-section technique is used for solving problems of radiation transport by the Monte Carlo method to optimize the particles' free-path length modeling in inhomogeneous media. A probabilistic proof of a variation of this technique is proposed in the article.

Monte Carlo Simulation of Thermophysical Properties for Al-Ce Liquid Alloys

2010 ◽  
Vol 654-656 ◽  
pp. 1404-1407 ◽  
Author(s):  
Wen Jing Yao ◽  
Nan Wang
Keyword(s):  
Monte Carlo ◽  
Diffusion Coefficient ◽  
Thermophysical Properties ◽  
Alloy System ◽  
Simulation Method ◽  
The Monte Carlo Method ◽  
Different Temperatures ◽  
Binary Alloy System ◽  
Eam Potential ◽  
And Diffusion

The Monte Carlo method with EAM potential is applied to simulate the liquid Al-Ce binary alloy system and the thermophysical properties including surface tension (), viscosity () and diffusion coefficient (D) of liquid Al-8at%Ce alloy are determined. The simulated  values decrease with temperature. Based on the relationship between ,  and D, the various viscosity and diffusion coefficient of liquid Al-Ce alloys under different temperatures were determined. The comparison of the simulated results with some experimental measurements is performed and discussed, indicating that the simulation method and EAM parameters in simulation are acceptable. The dependence of viscosity and diffusion coefficient of liquid Al-Ce alloys on temperature is established to be helpful in further investigation of amorphrization ability of Al-Ce alloys.

scholarly journals Сапфировый нейрохирургический зонд для аспирации опухолей мозга с демаркацией границ с помощью спектроскопии-=SUP=-*-=/SUP=-

2019 ◽  
Vol 126 (5) ◽  
pp. 627
Author(s):  
И.А. Шикунова ◽  
И.Н. Долганова ◽  
Г.М. Катыба ◽  
К.И. Зайцев ◽  
В.Н. Курлов
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Brain Tumors ◽  
Blood Vessels ◽  
Cross Section ◽  
Variable Cross Section ◽  
Laser Coagulation ◽  
Variable Cross ◽  
The Monte Carlo Method ◽  
Fluorescence Diagnostics

AbstractA contact sapphire neurosurgical probe for the removal of brain tumors with the possibility of intraoperative exogenous fluorescence diagnostics and laser coagulation of adjacent blood vessels has been developed. The geometry of the sapphire neuroprobe has been optimized to increase the sensitivity of fluorescence diagnostics. For this purpose, a series of computational experiments have been performed using the Monte Carlo method. The technique for growing a sapphire shaped crystal with a variable cross section has been developed. Using this technique, a pilot prototype of the sapphire neuroprobe has been manufactured. The sample has been approbated experimentally.

scholarly journals Radially convergent 30–100-μs e-beam-pumped Xe and Ne lasers

1994 ◽  
Vol 12 (4) ◽  
pp. 633-646 ◽  
Author(s):  
A.S. Bugaev ◽  
N.N. Koval ◽  
M.I. Lomaev ◽  
S.V. Mel'chenko ◽  
V.V. Ryzhov ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Active Medium ◽  
Cross Section ◽  
Spectral Characteristics ◽  
Laser Output ◽  
Small Signal Gain ◽  
Small Signal ◽  
The Monte Carlo Method ◽  
Deposited Energy

The design scheme of a radially convergent 30-, 70-, or 100-μs e-beam-pumped laser with 9 or 18 1 excited volume is described. Amplitude, temporal, and spectral characteristics of the laser output, as well as laser thresholds in (Ar–Xe, He–Ar–Xe, He–Ne–Ar, and He– Ne–Ar–H2) gas mixtures have been investigated. The distribution of the specific deposited energy over the laser chamber cross section has been calculated by the Monte Carlo method. The small signal gain and unsaturable loss values of the active medium were measured for a Penning plasma Ne laser at λ = 0.585 μm.

Molecular Dynamics Study of Electron Irradiation Damages in Carbon Nanomaterials

2007 ◽  
Vol 1057 ◽  
Author(s):  
Masaaki Yasuda ◽  
Takashi Majima ◽  
Yoshihisa Kimoto ◽  
Kazuhiro Tada ◽  
Hiroaki Kawata ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Cross Section ◽  
Electron Irradiation ◽  
Carbon Nanomaterials ◽  
Primary Energy ◽  
Single Walled Carbon Nanotube ◽  
The Monte Carlo Method ◽  
Cross Links

ABSTRACTMolecular dynamics (MD) studies are carried out to investigate the electron irradiation damages in carbon nanomaterials. The interaction between an incident electron and a carbon atom is modeled based on the Monte Carlo method using the elastic scattering cross section. The electron irradiation damages in graphen, graphite, single-walled carbon nanotube (SWNT) and carbon nanopeapod are demonstrated. The cross-links among the nanostructures caused by the knock-on effect are observed as typical damages. The dependence of the damages on the electron primary energy is also shown for the SWNT.

UGR CALCULATION BASED ON THE LUMINANCE SPATIAL-ANGULAR DISTRIBUTION

2020 ◽  
Vol 2020 (4) ◽  
pp. 25-32
Author(s):  
Viktor Zheltov ◽  
Viktor Chembaev
Keyword(s):  
Monte Carlo ◽  
Angular Distribution ◽  
Monte Carlo Method ◽  
Visual Task ◽  
New Method ◽  
Lighting System ◽  
Preliminary Assessment ◽  
System A ◽  
The Monte Carlo Method

The article has considered the calculation of the unified glare rating (UGR) based on the luminance spatial-angular distribution (LSAD). The method of local estimations of the Monte Carlo method is proposed as a method for modeling LSAD. On the basis of LSAD, it becomes possible to evaluate the quality of lighting by many criteria, including the generally accepted UGR. UGR allows preliminary assessment of the level of comfort for performing a visual task in a lighting system. A new method of "pixel-by-pixel" calculation of UGR based on LSAD is proposed.

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