Results 41 to 50 of about 80,518 (195)
Brazilian Journal of Radiation Sciences, 2021 In this paper, we propose a new deterministic numerical methodology to solve the one-dimensional linearized Boltzmann equation applied to neutron shielding problems (fixed-source), using the transport equation in the discrete ordinates formulation (SN ...
Rafael Barbosa Libotte +2 more
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Relativistic kinetic equation for Compton scattering of polarized radiation in strong magnetic field
, 2012 We derive the relativistic kinetic equation for Compton scattering of polarized radiation in strong magnetic field using the Bogolyubov method. The induced scattering and the Pauli exclusion principle are taken into account.
A. S. Kompaneets +11 more
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What Can the Accretion Induced Collapse of White Dwarfs Really Explain? [PDF]
, 1998 The accretion induced collapse (AIC) of a white dwarf into a neutron star has been invoked to explain gamma-ray bursts, Type Ia supernovae, and a number of problematic neutron star populations and specific binary systems.
Bailyn C. D. +14 more
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On nonlinear neutron transport equations
Journal of Mathematical Analysis and Applications, 1973 AbstractThe purpose of this paper is to investigate a class of time-dependent neutron transport equations in which the total and differential scattering cross sections are nonlinear functions of neutron density function. Sufficient conditions on the nonlinear cross sections are given to insure the existence, uniqueness and asymptotic stability of a ...
openaire +2 more sources
AIP Advances, 2014 A new idea to calculate ultracold neutron (UCN) production by using Monte Carlo simulation method to calculate the cold neutron (CN) flux and an analytical approach to calculate the UCN production from the simulated CN flux was given.
R. Gheisari +2 more
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A field determination method of D-T neutron source yields based on oxygen prompt gamma rays
Nuclear Engineering and Technology, 2023 A field determination method for small D-T neutron source yield based on the oxygen prompt gamma rays was established. A neutron-gamma transport equation of the determination device was developed. Two yield field determination devices with a thickness of
Xiongjie Zhang +8 more
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Thermalisation time and specific heat of neutron stars crust
, 2009 We discuss the thermalisation process of the neutron stars crust described by solving the heat transport equation with a microscopic input for the specific heat of baryonic matter.
A. Y. Potekhin +8 more
core +3 more sources
An exact solution of linearized flow of an emitting, absorbing and scattering grey gas [PDF]
, 1971 The governing equations for the problem of linearized flow through a normal shock wave in an emitting, absorbing, and scattering grey gas are reduced to two linear coupled integro-differential equations.
Cheng, Ping, Leonard, A.
core +1 more source
Well-balanced and asymptotic preserving schemes for kinetic models [PDF]
, 2016 In this paper, we propose a general framework for designing numerical schemes that have both well-balanced (WB) and asymptotic preserving (AP) properties, for various kinds of kinetic models.
Emako, Casimir, Tang, Min
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Asymptotic analysis of unsteady neutron transport equation
Mathematical Methods in the Applied Sciences, 2019 Consider the unsteady neutron transport equation with diffusive boundary condition in 2D convex domains. We establish the diffusive limit with both initial layer and boundary layer corrections. The major difficulty is the lack of regularity in the boundary layer with geometric correction.
openaire +3 more sources