scholarly journals Program WALKMAN: A code designed to perform electron single collision elastic scattering Monte Carlo calculations

1994 ◽  
Author(s):  
D.E. Cullen
Keyword(s):  
Monte Carlo ◽  
Elastic Scattering ◽  
Single Collision ◽  
Monte Carlo Calculations

ISOTOPE EFFECT IN HEAVY ION RANGE STUDIES

1961 ◽  
Vol 39 (3) ◽  
pp. 611-615 ◽  
Author(s):  
J. A. Davies ◽  
J. D. McIntyre ◽  
G. A. Sims
Keyword(s):  
Monte Carlo ◽  
Elastic Scattering ◽  
Isotope Effect ◽  
Isotope Ratio ◽  
Small Difference ◽  
Heavy Ion ◽  
Scattering Model ◽  
Monte Carlo Calculations ◽  
Reasonable Explanation ◽  
Range Difference

From measurements of the isotope ratio (Na22/Na24) at various depths of penetration, it has been possible to determine at 24 kev the small difference in the median ranges of the sodium isotopes. Na22 has the slightly larger median range, as is predicted by the Nielsen equation. Monte Carlo calculations show that an isotropic elastic-scattering model provides a reasonable explanation for the magnitude of the range difference and for the observed variation in the isotope ratio as a function of depth.

Electron Scattering in Solids

1990 ◽  
Vol 48 (2) ◽  
pp. 4-5
Author(s):  
Ryuichi Shimizu ◽  
Ze-Jun Ding
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Angular Distribution ◽  
Elastic Scattering ◽  
Electron Scattering ◽  
Cross Sections ◽  
Expansion Method ◽  
Electron Excitation ◽  
Partial Wave Expansion ◽  
Backscattered Electrons

Monte Carlo simulation has been becoming most powerful tool to describe the electron scattering in solids, leading to more comprehensive understanding of the complicated mechanism of generation of various types of signals for microbeam analysis.The present paper proposes a practical model for the Monte Carlo simulation of scattering processes of a penetrating electron and the generation of the slow secondaries in solids. The model is based on the combined use of Gryzinski’s inner-shell electron excitation function and the dielectric function for taking into account the valence electron contribution in inelastic scattering processes, while the cross-sections derived by partial wave expansion method are used for describing elastic scattering processes. An improvement of the use of this elastic scattering cross-section can be seen in the success to describe the anisotropy of angular distribution of elastically backscattered electrons from Au in low energy region, shown in Fig.l. Fig.l(a) shows the elastic cross-sections of 600 eV electron for single Au-atom, clearly indicating that the angular distribution is no more smooth as expected from Rutherford scattering formula, but has the socalled lobes appearing at the large scattering angle.

Monte Carlo calculations of neutron spectrum parameters at the JRTR NAA channels

2021 ◽  
Vol 134 ◽  
pp. 103688
Author(s):  
Ihsan Farouki ◽  
Rashdan Malkawi ◽  
Sayel Marashdeh
Keyword(s):  
Monte Carlo ◽  
Neutron Spectrum ◽  
Monte Carlo Calculations
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