Monte-Carlo-Rechnungen und Messungen zur Vielfachstreuung von schweren Ionen in dünnen Folien / Monte Carlo Calculations and Measurements Concerning the Multiple Scattering of Heavy Ions in Thin Films

1976 ◽  
Vol 31 (8) ◽  
pp. 949-955 ◽  
Author(s):  
J. Zienert ◽  
K. Güttner ◽  
G. Münzenberg
Keyword(s):  
Thin Films ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Energy Loss ◽  
Heavy Ions ◽  
Energy Distributions ◽  
Monte Carlo Calculations ◽  
Screening Parameter ◽  
Screened Coulomb Potential ◽  
Good Agreement

Abstract The behaviour of energetic heavy ions in thin films is simulated by means of a Monte Carlo method taking especially into account the energy loss of the scattered particles. Based on a variably matched screened Coulomb potential the calculations yield the angular and energy distributions of the transmitted ions. The results show a good agreement with the theory of Meyer. Furthermore for keV He ions scattering distributions have been measured in C, Al and Ag, which agree fairly well with the computations, if a suitable fit of the screening parameter is used in the Monte Carlo simulations.

Monte-Carlo-Rechnungen zur Rückstreuung von schweren, hochenergetischen Ionen an Metalloberflächen

1971 ◽  
Vol 26 (8) ◽  
pp. 1290-1296
Author(s):  
Klaus Güttner
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Heavy Ions ◽  
Metal Surfaces ◽  
High Energy ◽  
Energy Losses ◽  
Energy Distributions ◽  
Metal Foils ◽  
Penetration Depths ◽  
Good Agreement

A Monte-Carlo-Method is applied to describe the backscattering of high energy heavy ions from metal surfaces taking into account the energy losses. The calculations yield the angular and energy distributions of the reflected particles together with the percentage distributions of the complete particle histories. Furthermore it is possible to get informations concerning penetration depths and the number of collisions during the interaction of these particles with the metal foils. The calculated distributions are in good agreement with known experiments

Handling of Collimated Irradiation on a Plane-Parallel Participating Medium

2000 ◽  
Author(s):  
Christian Proulx ◽  
Daniel R. Rousse ◽  
Rodolphe Vaillon ◽  
Jean-François Sacadura
Keyword(s):  
Heat Flux ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Radiative Heat ◽  
Radiative Heat Flux ◽  
Scattering Media ◽  
One Dimensional ◽  
Plane Parallel ◽  
Collimated Beam ◽  
Good Agreement

Abstract This article presents selected results of a study comparing two procedures for the treatment of collimated irradiation impinging on one boundary of a participating one-dimensional plane-parallel medium. These procedures are implemented in a CVFEM used to calculate the radiative heat flux and source. Both isotropically and anisotropically scattering media are considered. The results presented show that both procedures provide results in good agreement with those obtained using a Monte Carlo method, when the collimated beam impinges normally.

scholarly journals Alignment of Dust Grains by Magnetic Relaxation: A Comparison Between Results Obtained by Two Different Methods

1973 ◽  
Vol 52 ◽  
pp. 187-189
Author(s):  
P. Cugnon
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Magnetic Relaxation ◽  
Planck Equation ◽  
Dust Grains ◽  
Fokker Planck Equation ◽  
The Monte Carlo Method ◽  
Good Agreement ◽  
Fokker Planck

This paper is devoted to a comparison between results obtained by Purcell and Spitzer (1971) using a Monte-Carlo method and by the author (1971) using a Fokker-Planck equation. It is shown that there is a good agreement between the results within the dispersion expected from the Monte-Carlo method.

GREEN'S FUNCTION AND SUPER-PARTICLE METHODS FOR KINETIC SIMULATION OF HETEROEPITAXY

2007 ◽  
Vol 21 (23n24) ◽  
pp. 4219-4224 ◽  
Author(s):  
CHI-HANG LAM ◽  
M. T. LUNG
Keyword(s):  
Thin Films ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Green’S Function ◽  
Green's Function ◽  
Kinetic Monte Carlo ◽  
Three Dimensional ◽  
Particle Methods ◽  
Kinetic Simulation ◽  
Kinetic Monte Carlo Method

Arrays of nanosized three dimensional islands are known to self-assemble spontaneously on strained heteroepitaxial thin films. We simulate the dynamics using kinetic Monte Carlo method based on a ball and spring lattice model. Green's function and super-particle methods which greatly enhance the computational efficiency are explained.

CHANNELING ENERGY LOSS IN SILICON BY USING NUMERICAL AND EXPERIMENTAL METHODS

2011 ◽  
Vol 25 (28) ◽  
pp. 2171-2181 ◽  
Author(s):  
OMAR EL BOUNAGUI ◽  
HASSANE ERRAMLI
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Energy Loss ◽  
Single Crystal ◽  
Experimental Methods ◽  
Silicon Single Crystal ◽  
Experimental Results ◽  
Monte Carlo Simulation Program ◽  
Shed Light ◽  
Good Agreement

A Monte Carlo simulation program was developed to calculate the variations of the channeled to random electronic stopping powers of He + in an energy 4 MeV in silicon single crystal along the major 〈100〉, 〈110〉 and 〈111〉 axes. This paper discusses both simulation and experimental results that shed light on the contribution of these factors. Results obtained by our simulation are in good agreement with the experimental results.

Measurements and Monte Carlo calculations of photon energy distributions in MAYAK PA workplaces

2008 ◽  
Vol 131 (4) ◽  
pp. 455-468
Author(s):  
M. Smetanin ◽  
E. Vasilenko ◽  
M. Semenov ◽  
S. Xanthos ◽  
G. Takoudis ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Photon Energy ◽  
Energy Distributions ◽  
Monte Carlo Calculations

Monte Carlo Calculations on Models for High Energy Atomic Reactions

1964 ◽  
Vol 2 (4) ◽  
Author(s):  
F. S. Rowland ◽  
P. Coulter
Keyword(s):  
Monte Carlo ◽  
Kinetic Theory ◽  
Energy Loss ◽  
Free Parameter ◽  
Monte Carlo Calculation ◽  
High Energy ◽  
Maximum Energy ◽  
Isotropic Model ◽  
Monte Carlo Calculations

SummaryA Monte Carlo calculation has been performed to evaluate the yields expected from the kinetic theory of hot atom reactions for various combinations of parameters. The calculations here have been performed for the elastic, isotropic model and for an isotropic, pseudoelastic model in which the maximum energy loss is treated as a free parameter. The total hot yield,

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