Monte Carlo Modeling of Neutron Transport

Dupree, S.A.; Fraley, Stanley K.

doi:10.1007/978-1-4419-8491-3_3

Cited by 4 publications

(3 citation statements)

References 1 publication

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“…where N t and Z t are the secondary target density and charge number, respectively (e is the electron charge and ε 0 is the permittivity of free space). The conversion of the post-collision direction of the deuteron cm = {θ cm i , ϕ cm i } from the center-of-mass system to the laboratory system L = {θ i , ϕ i } determines the new deuteron direction in the laboratory system after the pseudo-collision takes place [25]. The above algorithm is applied at each step until the ion energy becomes less than the cut-off energy E cut-off i (∼1 KeV).…”

Section: Monte Carlo Simulationsmentioning

confidence: 99%

Angular distribution of neutrons from high-intensity laser–target interactions

Davis

Petrov

2008

Plasma Phys. Control. Fusion

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The angular distribution of neutrons formed in nuclear fusion reactions of a high-energy deuteron beam with a deuterated polyethylene (CD 2 ) was investigated with a Monte Carlo ion beam-target deposition model. The initial conditions were obtained from a two-dimensional particle-in-cell laser-target deposition model. The neutron yield and its angular distribution were studied as a function of peak laser intensity, laser pulse duration and primary target thickness. The proposed scheme for neutron production delivers a typical neutron yield of 10 −5 -10 −3 neutrons/ion and 10 5 -10 7 neutrons J −1 laser energy.

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Section: Monte Carlo Simulationsmentioning

confidence: 99%

Angular distribution of neutrons from high-intensity laser–target interactions

Davis

Petrov

2008

Plasma Phys. Control. Fusion

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“…Acceleration of the convergence and improvement of MC efficiency and accuracy can be obtained by means of variance reduction techniques (VRTs) [50,51]. Those techniques are usually employed in MC to reduce the statistical error in the calculation of macroscopic quantities by using different statistical weights for the simulated particles.…”

Section: Introductionmentioning

confidence: 99%

Benchmarking of Monte Carlo flux simulations of electrons in CO₂

Vialetto¹,

Viegas²,

Longo³

et al. 2020

Plasma Sources Sci. Technol.

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“…The best method to produce a realistic simulation of particle transport in conditions where the mean free path length is not negligible with respect to the system linear dimension is the Monte Carlo method. Different versions of this method have been proposed to address the problem of neutron transport in thermal media [5], atom [6] and ion [7][8][9] transport in gases. The necessity of including the effect of the gas flow on the particle transport can be addressed by a hybrid approach [10,11].…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo Cs⁺transport from a point source in negative ion sources: effect of the deuterium flow

Diomede

Longo

2009

Plasma Sources Sci. Technol.

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The transport of Cs + ions in a flow of deuterium is studied by numerical simulation in the context of Cs seeding of negative ion sources for neutral beam injection (NBI). The model used is based on a calculation of the flow of deuterium molecules followed by the calculation of Cs + ion transport in the established flow: both calculations are based on Monte Carlo methods. The physical hypotheses and approximations of the model are discussed in detail. A set of two-dimensional simulations is performed where Cs + comes from a point source representing the Cs oven. The effect of the gas flow on the ion distribution, velocity field and flow through surfaces is shown. It is also found that, in spite of the high mass ratio and the low pressure in the expansion chamber, simplified descriptions of the neutral gas flow are inadequate.

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Monte Carlo Modeling of Neutron Transport

Cited by 4 publications

References 1 publication

Angular distribution of neutrons from high-intensity laser–target interactions

Angular distribution of neutrons from high-intensity laser–target interactions

Benchmarking of Monte Carlo flux simulations of electrons in CO₂

Monte Carlo Cs⁺transport from a point source in negative ion sources: effect of the deuterium flow

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Monte Carlo Modeling of Neutron Transport

Cited by 4 publications

References 1 publication

Angular distribution of neutrons from high-intensity laser–target interactions

Angular distribution of neutrons from high-intensity laser–target interactions

Benchmarking of Monte Carlo flux simulations of electrons in CO2

Monte Carlo Cs+transport from a point source in negative ion sources: effect of the deuterium flow

Contact Info

Product

Resources

About

Benchmarking of Monte Carlo flux simulations of electrons in CO₂

Monte Carlo Cs⁺transport from a point source in negative ion sources: effect of the deuterium flow