Results 81 to 90 of about 24,771 (208)
Effects of ground movements on realistic guide models for the European Spallation Source
Physical Review Accelerators and Beams, 2020 We model the effect of ground movement, based on empirical experience, on the transport properties of long neutron guides by ray-tracing simulations. For a simple model, our results reproduce the large losses found by an earlier study, while for a more ...
Asla Husgard +6 more
doaj +1 more source
Neutron Imaging Study of Evolution of Structural and Transport Properties of Cement-Clay Interfaces
, 2019 In many designs for radioactive waste repositories, cement and clay will come into direct contact. The geochemical contrast between cement and clay will lead to mass fluxes across the interface, which consequently results in alteration of structural and ...
Shafizadeh, Amir
core
Optimisation of moderator and neutron guide design for prompt gamma neutron activation analysis (PGNAA) using MCNP5 simulation [PDF]
, 2013 The performance of prompt gamma neutron activation analysis (PGNAA) setup depends on thermal neutron flux available at the sample. Neutrons available in most reactors consist of thermal, epithermal and fast neutrons with varying ratios. As such for PGNAA
Mohamed Johan, Mazni
core
Exact solution of the neutron transport equation in spherical geometry
, 2017 Solution of the neutron transport equation in one dimensional slab geometry construct a basis for the solution of neutron transport equation in a curvilinear geometry.
A. Akkurt +3 more
core +1 more source
Sobolev Regularity in Neutron Transport Theory [PDF]
ISRN Mathematical Analysis, 2012 The main purpose of this paper is to extend the W1,p regularity results in neutron transport theory, with respect to the Lebesgue measure due to Mokhtar-Kharroubi, (1991), and to abstract measures covering, in particular, the continuous models or multigroup models.
openaire +2 more sources
Anomalous hydrodynamics kicks neutron stars
, 2016 Observations show that, at the beginning of their existence, neutron stars are accelerated briskly to velocities of up to a thousand kilometers per second.
Uhlemann, Christoph F. +3 more
core
Positivity of the difference neutron transport operator
In the present study, a two-dimensional difference neutron transport operator is considered. The resolvent equation for this neutron transport operator is constructed. The positivity of this difference neutron transport operator in (Formula presented) is
Ashyralyev A., Taskin A.
core +1 more source
EPJ Web of Conferences, 2017 Reliable information of radioactivity inventory resulted from the radiological characterization is important in order to plan decommissioning planning and is also crucial in order to promote decommissioning in effectiveness and in safe.
Tanaka Ken-ichi, Ueno Jun
doaj +1 more source
Convergence of a discontinuous Galerkin scheme for the neutron transport
, 2001 We study the spatial discretization for the numerical solution of a model problem for the neutron transport equation in an infinite cylindrical domain. Based on using an interpolation technique in the discontinuous Galerkin finite element procedure, and ...
Asadzadeh, Mohammad,
core
EPJ Web of Conferences, 2017 Nuclear decommissioning takes place in several stages due to the radioactivity in the reactor structure materials. A good estimation of the neutron activation products distributed in the reactor structure materials impacts obviously on the ...
Lee Yi-Kang
doaj +1 more source