Results 21 to 30 of about 24,771 (208)

Dosimetry data from fuel channel clips for benchmarking a new computational fluid dynamics model in neutron transport [PDF]

EPJ Web of Conferences, 2023
Accurate neutron transport models for BWRs are needed to characterize neutron damage to the top guide, top guide cylinder, vessel nozzles, and to other upper internals.
Manahan Michael
doaj   +1 more source

Conservative neutron transport theory [PDF]

Journal of Mathematical Physics, 1977
A functional analytic development of the Case full-range and half-range expansions for the neutron transport equation for a conservative medium is presented. A technique suggested by Larsen is used to overcome the difficulties presented by the noninvertibility of the transport operator K−1 on its range.
Bowden, Robert L., Cameron, W. L., Zweifel, Paul F.   +2 more
openaire   +1 more source

A new approach for calculation of the neutron noise of power reactor based on Telegrapher's theory: Theoretical and comparison study between Telegrapher's and diffusion noise

Nuclear Engineering and Technology, 2020
The telegrapher's theory was used to develop a new formulation for the neutron noise equation. Telegrapher's equation is supposed to demonstrate a more realistic approximation for neutron transport phenomena, especially in comparison to the diffusion ...
Mona Bahrami, Naser Vosoughi
doaj   +1 more source

Neutron angular flux reconstruction in slab geometry using multigroup discrete ordinates transport models

Brazilian Journal of Radiation Sciences, 2023
In this article, we present an application of the coarse-mesh Deterministic Spectral Method (SDM) to generate multigroup angular fluxes in one-dimensional spatial domains using the neutron transport stationary equation, in the formulation of discrete ...
F. T. C. S. Balbina, R. C. Barros, H. Alves Filho   +2 more
doaj   +1 more source

Transport theory and systems theory [PDF]

Nuclear Technology and Radiation Protection, 2005
The simulation of singular nonlinear transport equation is obtained via corresponding neutron or photon kinetic equation. The conditions for convergence of the non stationary transport process to ward the pure dif fusion across the equilibriums are ...
Rastović Danilo
doaj   +1 more source

PARAMETRIC STUDY OF PARALLEL BLOCK JACOBI / SOURCE ITERATION HYBRID METHODS IN 2-D CARTESIAN GEOMETRY AND CONSTRUCTION OF THE INTEGRAL TRANSPORT MATRIX METHOD MATRICES VIA GREEN’S FUNCTIONS [PDF]

EPJ Web of Conferences, 2021
Parallel Block Jacobi (PBJ) [1] is an asynchronous spatial domain decomposition with application in solving the neutron transport equation due to its extendibility to massively parallel solution in unstructured spatial meshes (grids) without the use of ...
Hoagland Dylan S., Azmy Yousry Y.
doaj   +1 more source

STRAUM-MATXST: A code system for multi-group neutron-gamma coupled transport calculation with unstructured tetrahedral meshes

Nuclear Engineering and Technology, 2022
In this paper, a new multi-group neutron-gamma transport calculation code system STRAUM-MATXST for complicated geometrical problems is introduced and its development status including numerical tests is presented.
MyeongHyeon Woo, Ser Gi Hong
doaj   +1 more source

MULTI-PHYSICS TRANSIENT SIMULATIONS WITH TRIPOLI-4® [PDF]

EPJ Web of Conferences, 2021
In this work, we present the first dynamic calculations performed with the Monte Carlo neutron transport code TRIPOLI-4R with thermal-hydraulics feedback.
Faucher Margaux, Mancusi Davide, Zoia Andrea   +2 more
doaj   +1 more source

Evaluation of PWR pressure vessel fast neutron fluence benchmarks from NUREG/CR-6115 with ares transport code [PDF]

Nuclear Technology and Radiation Protection, 2017
An accurate evaluation of PWR pressure vessel fast neutron fluence is essential to ensure pressure vessel integrity over the design lifetime. The discrete ordinates method is one of the main methods to treat such problems.
Zhang Liang, Zhang Bin, Liu Cong, Chen Yixue   +3 more
doaj   +1 more source

Analysis of the Signal over Noise Ratio of the hodoscope determined by Monte Carlo calculation [PDF]

EPJ Web of Conferences, 2021
The CABRI experimental pulse reactor, located at the Cadarache nuclear research center, southern France, is devoted to the study of Reactivity Initiated Accidents (RIA) for the purpose of the CABRI International Program (CIP), managed by IRSN in the ...
Di Salvo J., Mirotta S., Chevalier V.
doaj   +1 more source