Results 81 to 90 of about 80,518 (195)

Moment Asymptotics for the Neutron Transport Equation

open access: yesNuclear Science and Engineering
Over the last decade, ingenuous developments in Monte Carlo methods have enabled the unbiased estimation of adjoint-weighted reactor parameters expressed as bilinear forms, such as kinetics parameters and sensitivity coefficients. A prominent example is the iterated fission probability method, which relies on the simulation of the fission chains ...
Dumonteil, Eric   +3 more
openaire   +1 more source

SIMULATION OF THE BURNUP IN CELL CALCULATION USING THE WIMSD-5B CODE CONSIDERING DIFFERENT NUCLEAR DATA LIBRARIES [PDF]

open access: yes
This work proposes to implement the cell calculation considering the fuel burning using the WIMSD-5B code. The cell calculation procedure allows to determine the nuclear parameters present in the multi-group neutron diffusion equation and for this ...
LIMA, Zelmo Rodrigues de   +2 more
core  

Numerical solutions for nonlinear mixed integro-differential equation and the neutron transport equation

open access: yesAIP Advances
In this work, I will discuss the solution of the new in a nonlinear integro-differential equation (NI-DE) form. The NI-DE is established from the nuclear transport equation, which is a linearized derivative of the equation developed by Boltzmann for the ...
Abeer M. Al-Bugami
doaj   +1 more source

Time-Dependent Verification of the SPN Neutron Solver KANECS

open access: yesJournal of Nuclear Engineering
KANECS is a 3D multigroup neutronics code based on the Simplified Spherical Harmonics (SPN) approximation and the Continuous Galerkin Finite Element Method (CGFEM).
Julian Duran-Gonzalez   +1 more
doaj   +1 more source

Optimization of multi-group energy structures for solving the neutron transport equation [PDF]

open access: yesEPJ Web of Conferences
We develop a framework to determine an optimal broad group structure of the energy variable when solving the neutron transport equation, starting from a fine structure.
Do Minh-Hieu   +2 more
doaj   +1 more source

Electron conduction along quantizing magnetic fields in neutron star crusts. I. Theory

open access: yes, 1996
Transport properties of degenerate relativistic electrons along quantizing magnetic fields in neutron star crusts are considered. A kinetic equation is derived for the spin polarization density matrix of electrons.
Potekhin, A. Y.
core   +1 more source

Review of Mathematical Theory of Neutron Transport Equations

open access: yesJournal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan, 1971
A brief summary is presented on neutron transport theory, limited to spectral theory, exact solutions and approximate treatment of transport equations.The first part of this report covers spectral theoretic studies of initial value problems. The spectrum of neutron wave propagation and the relaxation length of neutron diffusion is not discussed.In the ...
Seiji UKAI, Hiroshi NISHIHARA
openaire   +2 more sources

Collective features of nuclear dynamics with exotic nuclei within microscopic transport models

open access: yesEPJ Web of Conferences, 2014
We employ a transport model based on Landau-Vlasov equation to explore the dipolar response of neutron rich systems and its dependence on the symmetry energy.
Baran Virgil   +4 more
doaj   +1 more source

Analytical derivation of steady-state delayed neutron precursor distribution and effective delayed neutron fraction in a molten salt reactor

open access: yesNuclear Engineering and Technology
In liquid-fueled molten salt reactors (MSRs), the nuclear fuel is dissolved in a molten salt mixture that circulates through the primary loop. For system-scale simulations of MSRs, a point kinetics model (PKM) is commonly employed to describe the core ...
Jae Jun Jeong, Yun Je Cho
doaj   +1 more source

Study on Deterministic Calculation Method for Electron Transport Process

open access: yesYuanzineng kexue jishu, 2023
Electron transport process is a crucial factor in the formulation of the electronic current in nuclear detectors. Accurate calculation of electron transport process is the essential function for advanced nuclear detector design and analysis software ...
LI Xiaoying;LI Yunzhao;SHAO Ruizhi;XU Ning
doaj  

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