scholarly journals Evaluation of Recommended Cross Sections for the Simulation of Electron Tracks in Water

Atoms ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 98
Author(s):  
Adrián García-Abenza ◽  
Ana I. Lozano ◽  
Juan C. Oller ◽  
Francisco Blanco ◽  
Jimena D. Gorfinkiel ◽  
...  
Keyword(s):  
Experimental Data ◽  
Monte Carlo ◽  
Electron Transport ◽  
Electron Scattering ◽  
Cross Sections ◽  
Computational Study ◽  
Monte Carlo Code ◽  
Gas Cell ◽  
Magnetically Confined ◽  
Insight Into

The accuracy of the most recent recommended cross sections dataset for electron scattering from gaseous H2O (J. Phys. Chem. Ref. Data 2021, 50, 023103) is probed in a joint experimental and computational study. Simulations of the magnetically confined electron transport through a gas cell containing H2O for different beam energies (3, 10 and 70 eV) and pressures (2.5 to 20.0 mTorr) have been performed by using a specifically designed Monte Carlo code. The simulated results have been compared with the corresponding experimental data as well as with simulations performed with Geant4DNA. The comparison made between the experiment and simulation provides insight into possible improvement of the recommended dataset.

scholarly journals A complete data set for the simulation of electron transport through gaseous tetrahydrofuran in the energy range 1–100 $$\hbox {eV}$$

2021 ◽  
Vol 75 (12) ◽  
Author(s):  
A. García-Abenza ◽  
A. I. Lozano ◽  
L. Álvarez ◽  
J. C. Oller ◽  
F. Blanco ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Electron Transport ◽  
Monte Carlo Simulations ◽  
Energy Range ◽  
Cross Sections ◽  
Gas Cell ◽  
Data Set ◽  
Total Electron ◽  
Magnetically Confined ◽  
Scattering Cross Sections

Abstract A self-consistent data set, with all the necessary inputs for Monte Carlo simulations of electron transport through gaseous tetrahydrofuran (THF) in the energy range 1–100 eV, has been critically compiled in this study. Accurate measurements of total electron scattering cross sections (TCSs) from THF have been obtained, and considered as reference values to validate the self-consistency of the proposed data set. Monte Carlo simulations of the magnetically confined electron transport through a gas cell containing THF for different beam energies (3, 10 and 70 eV) and pressures (2.5 and 5.0 mTorr) have also been performed by using a novel code developed in Madrid. In order to probe the accuracy of the proposed data set, the simulated results have been compared with the corresponding experimental data, the latter obtained with the same experimental configuration where the TCSs have been measured. Graphic Abstract

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.

scholarly journals Relativistic B-Spline R-Matrix Calculations for Electron Collisions with Ytterbium

Atoms ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 47
Author(s):  
Kathryn R. Hamilton ◽  
Klaus Bartschat ◽  
Oleg Zatsarinny
Keyword(s):  
Experimental Data ◽  
Electron Scattering ◽  
Cross Sections ◽  
Matrix Method ◽  
Model Potential ◽  
Electron Collisions ◽  
R Matrix ◽  
B Spline ◽  
Potential Approach

We have applied the full-relativistic Dirac B-Spline R-matrix method to obtain cross sections for electron scattering from ytterbium atoms. The results are compared with those obtained from a semi-relativistic (Breit-Pauli) model-potential approach and the few available experimental data.

scholarly journals A Monte-Carlo Simulation of the Behaviour of Electron Swarms in Hydrogen Using an Anisotropic Scattering Model

1978 ◽  
Vol 31 (4) ◽  
pp. 299 ◽  
Author(s):  
HA Blevin ◽  
J Fletcher ◽  
SR Hunter
Keyword(s):  
Experimental Data ◽  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Electron Transport ◽  
Anisotropic Scattering ◽  
Isotropic Scattering ◽  
Transport Parameters ◽  
Simulation Code ◽  
Scattering Model ◽  
Good Agreement

Hunter (1977) found that a Monte-Carlo simulation of electron swarms in hydrogen, based on an isotropic scattering model, produced discrepancies between the predicted and measured electron transport parameters. The present paper shows that, with an anisotropic scattering model, good agreement is obtained between the predicted and experimental data. The simulation code is used here to calculate various parameters which are not directly measurable.

scholarly journals Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

2010 ◽  
Vol 66 (3-4) ◽  
pp. 585-686 ◽  
Author(s):  
S. Actis ◽  
◽  
A. Arbuzov ◽  
G. Balossini ◽  
P. Beltrame ◽  
...  
Keyword(s):  
Experimental Data ◽  
Monte Carlo ◽  
Cross Sections ◽  
Low Energy

Evaluation of the electron transport algorithm in magnetic field in EGS5 Monte Carlo code

2022 ◽  
Vol 93 ◽  
pp. 46-51
Author(s):  
Kengo Ito ◽  
Noriyuki Kadoya ◽  
Yoshiyuki Katsuta ◽  
Shohei Tanaka ◽  
Suguru Dobashi ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Monte Carlo ◽  
Electron Transport ◽  
Monte Carlo Code

scholarly journals Validation of Shell Ionization Cross Sections for Monte Carlo Electron Transport

2018 ◽  
Vol 65 (8) ◽  
pp. 2279-2302 ◽  
Author(s):  
Tullio Basaglia ◽  
Matteo Bonanomi ◽  
Federico Cattorini ◽  
Min Cheol Han ◽  
Gabriela Hoff ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Electron Transport ◽  
Cross Sections ◽  
Ionization Cross ◽  
Ionization Cross Sections ◽  
Shell Ionization

scholarly journals Collisions of Nucleons with Atoms: Calculated Cross Sections and Monte Carlo Simulation

2021 ◽  
Vol 9 ◽  
Author(s):  
Francesc Salvat ◽  
José Manuel Quesada
Keyword(s):  
Monte Carlo ◽  
Cross Sections ◽  
Nuclear Reactions ◽  
Impact Ionization ◽  
Neutron Transport ◽  
Emission Spectra ◽  
Monte Carlo Code ◽  
Dose Distributions ◽  
Elastic Collisions ◽  
Proton Impact

After a summary description of the theory of elastic collisions of nucleons with atoms, we present the calculation of a generic database of differential and integrated cross sections for the simulation of multiple elastic collisions of protons and neutrons with kinetic energies larger than 100 keV. The relativistic plane-wave Born approximation, with binding and Coulomb-deflection corrections, has been used to calculate a database of proton-impact ionization of K-shell and L-, M-, and N-subshells of neutral atoms These databases cover the whole energy range of interest for all the elements in the periodic system, from hydrogen to einsteinium (Z = 1–99); they are provided as part of the penh distribution package. The Monte Carlo code system penh for the simulation of coupled electron-photon-proton transport is extended to account for the effect of the transport of neutrons (released in proton-induced nuclear reactions) in calculations of dose distributions from proton beams. A simplified description of neutron transport, in which neutron-induced nuclear reactions are described as a fractionally absorbing process, is shown to give simulated depth-dose distributions in good agreement with those generated by the Geant4 code. The proton-impact ionization database, combined with the description of atomic relaxation data and electron transport in penelope, allows the simulation of proton-induced x-ray emission spectra from targets with complex geometries.

scholarly journals Towards muon-electron scattering at NNLO

2020 ◽  
Vol 2020 (11) ◽  
Author(s):  
Carlo M. Carloni Calame ◽  
Mauro Chiesa ◽  
Syed Mehedi Hasan ◽  
Guido Montagna ◽  
Oreste Nicrosini ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Electron Scattering ◽  
Photon Radiation ◽  
Monte Carlo Code ◽  
Radiative Corrections ◽  
Small Momentum Transfer ◽  
Simulation Code ◽  
Theoretical Formulation ◽  
Loop Contribution ◽  
The Impact

Abstract The recently proposed MUonE experiment at CERN aims at providing a novel determination of the leading order hadronic contribution to the muon anomalous magnetic moment through the study of elastic muon-electron scattering at relatively small momentum transfer. The anticipated accuracy of the order of 10ppm demands for high-precision predictions, including all the relevant radiative corrections. The theoretical formulation for the fixed-order NNLO photonic radiative corrections is described and the impact of the numerical results obtained with the corresponding Monte Carlo code is discussed for typical event selections of the MUonE experiment. In particular, the gauge-invariant subsets of corrections due to electron radiation as well as to muon radiation are treated exactly. The two-loop contribution due to diagrams where at least two virtual photons connect the electron and muon lines is approximated taking inspiration from the classical Yennie-Frautschi-Suura approach. The calculation and its Monte Carlo implementation pave the way towards the realization of a simulation code incorporating the full set of NNLO corrections matched to multiple photon radiation, that will be ultimately needed for data analysis.

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