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

833 poster EVALUATION THE EFFECT OF MAGNETIC FIELD ON CO-60 BEAM USING GEANT4 MONTE CARLO CODE

2011 ◽  
Vol 99 ◽  
pp. S324
Author(s):  
C.I. Lee ◽  
T.S. Suh ◽  
B.Y. Choe ◽  
W.G. Jeong ◽  
J.W. Shin ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Monte Carlo ◽  
Monte Carlo Code

MONTE CARLO CALCULATION OF SLOW ELECTRON BEAM TRANSPORT IN SOLIDS: REFLECTION COEFFICIENT THEORY IMPLICATIONS

2012 ◽  
Vol 26 (04) ◽  
pp. 1150022 ◽  
Author(s):  
A. BENTABET
Keyword(s):  
Monte Carlo ◽  
Electron Transport ◽  
Reflection Coefficient ◽  
Penetration Depth ◽  
Cross Section ◽  
Monte Carlo Code ◽  
Slow Electron ◽  
Backscattering Coefficient ◽  
Transport Cross Section ◽  
The Mean

The reflection coefficient theory developed by Vicanek and Urbassek showed that the backscattering coefficient of light ions impinging on semi-infinite solid targets is strongly related to the range and the first transport cross-section as well. In this work and in the electron case, we show that not only the backscattering coefficient is, but also most of electron transport quantities (such as the mean penetration depth, the diffusion polar angles, the final backscattering energy, etc.), are strongly correlated to both these quantities (i.e. the range and the first transport cross-section). In addition, most of the electron transport quantities are weakly correlated to the distribution of the scattering angle and the total elastic cross-section as well. To make our study as straightforward and clear as possible, we have projected different input data of elastic cross-sections and ranges in our Monte Carlo code to study the mean penetration depth and the backscattering coefficient of slow electrons impinging on semi-infinite aluminum and gold in the energy range up to 10 keV. The possibility of extending the present study to other materials and other transport quantities using the same models is a valid process.

Calculations for Beta Dosimetry Using Monte Carlo Code (OREC) for Electron Transport in Water

1988 ◽  
Vol 55 (5) ◽  
pp. 741-750 ◽  
Author(s):  
J. E. Turner ◽  
R. N. Hamm ◽  
M. L. Souleyrette ◽  
D. E. Martz ◽  
T. A. Rhea ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Electron Transport ◽  
Monte Carlo Code ◽  
Beta Dosimetry

Monte Carlo calculations for transport due to MHD modes

1990 ◽  
Vol 44 (3) ◽  
pp. 405-430 ◽  
Author(s):  
Alkesh Punjabi ◽  
Allen Boozer ◽  
Maria Lam ◽  
Myung-Hee Kim ◽  
Kathy Burke
Keyword(s):  
Magnetic Field ◽  
Experimental Data ◽  
Monte Carlo ◽  
Spatial Variation ◽  
Diffusion Coefficients ◽  
Equations Of Motion ◽  
Transport Coefficients ◽  
Particle Diffusion ◽  
Monte Carlo Code ◽  
Magnetic Surfaces

The three basic mechanisms that produce either classical or anomalous transport are spatial variation of magnetic field strength, spatial variation of electrostatic potential in magnetic surfaces, and loss of magnetic surfaces. A Monte Carlo code is written to study transport due to these three mechanisms interacting with collisional effects. The equations of motion are obtained from the canonical drift Hamiltonian, but non-canonical co-ordinates are used to simplify the integrations. The code is applied to the reversed-field-pinch ZT-40 and the Tokapole II. For ZT-40 the Bessel-function model is used to represent the magnetic field geometry. The effects of pitch-angle scattering, loop voltage and the break-up of magnetic surfaces resulting from resistive MHD perturbations on the drift particle trajectories are illustrated. The particle diffusion coefficients are obtained for varying amplitudes of resistive MHD perturbations. For Tokapole II the spectrum of both the ideal and resistive MHD perturbations is constructed from the experimental data. The drift trajectories for trapped and passing electrons in the presence of such perturbations are obtained. The particle diffusion coefficients for the neo-classical regime in Tokapole II are obtained for varying collision frequency. By comparing the transport coefficients for various groups of particles with the experimental data, we hope to obtain far more information on the transport mechanisms than can be obtained by the standard confinement time measurements. The various groups of particles that can be studied using the code include runaway electrons, thermal electrons, and both passing and trapped diagnostic beam ions.

Consistency test of the electron transport algorithm in the GEANT4 Monte Carlo code

2005 ◽  
Vol 50 (4) ◽  
pp. 681-694 ◽  
Author(s):  
Emily Poon ◽  
Jan Seuntjens ◽  
Frank Verhaegen
Keyword(s):  
Monte Carlo ◽  
Electron Transport ◽  
Monte Carlo Code ◽  
Consistency Test

scholarly journals Latitudinal Dependence of Cosmic Rays Modulation at 1 AU and Interplanetary Magnetic Field Polar Correction

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
P. Bobik ◽  
G. Boella ◽  
M. J. Boschini ◽  
C. Consolandi ◽  
S. Della Torre ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Monte Carlo ◽  
Cosmic Rays ◽  
Interplanetary Magnetic Field ◽  
Latitudinal Gradients ◽  
Solar Modulation ◽  
Polar Regions ◽  
Monte Carlo Code ◽  
Field Polarity ◽  
The Imf

The cosmic rays differential intensity inside the heliosphere, for energy below 30 GeV/nuc, depends on solar activity and interplanetary magnetic field polarity. This variation, termed solar modulation, is described using a 2D (radius and colatitude) Monte Carlo approach for solving the Parker transport equation that includes diffusion, convection, magnetic drift, and adiabatic energy loss. Since the whole transport is strongly related to the interplanetary magnetic field (IMF) structure, a better understanding of his description is needed in order to reproduce the cosmic rays intensity at the Earth, as well as outside the ecliptic plane. In this work an interplanetary magnetic field model including the standard description on ecliptic region and a polar correction is presented. This treatment of the IMF, implemented in the HelMod Monte Carlo code (version 2.0), was used to determine the effects on the differential intensity of Proton at 1 AU and allowed one to investigate how latitudinal gradients of proton intensities, observed in the inner heliosphere with the Ulysses spacecraft during 1995, can be affected by the modification of the IMF in the polar regions.

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.

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