Results 31 to 40 of about 146,382 (124)
Imaging with Scattered Neutrons [PDF]
arXiv, 2006 We describe a novel experimental technique for neutron imaging with scattered neutrons. These scattered neutrons are of interest for condensed matter physics, because they permit to reveal the local distribution of incoherent and coherent scattering within a sample.
arxiv
MCViNE -- An object oriented Monte Carlo neutron ray tracing simulation package [PDF]
, 2015 MCViNE (Monte-Carlo VIrtual Neutron Experiment) is a versatile Monte Carlo (MC) neutron ray-tracing program that provides researchers with tools for performing computer modeling and simulations that mirror real neutron scattering experiments. By adopting modern software engineering practices such as using composite and visitor design patterns for ...
arxiv +1 more source
Non-reciprocity in elastic unpolarized neutron scattering by systems with non-coplanar magnetic structure [PDF]
arXiv, 2011 The paper provides a theoretical analysis for elastic unpolarized neutron scattering by systems having a non-coplanar magnetic induction spatial distribution. It is shown that reciprocity does not hold for neutron scattered by these systems. The scattering of unpolarized neutrons by a system of three magnetic mirrors and by a ferromagnetic particle in ...
arxiv
Practical applications of small-angle neutron scattering
Physical Chemistry Chemical Physics, 2013 Recent improvements in beam-line accessibility and technology have led to small-angle neutron scattering (SANS) becoming more frequently applied to materials problems. SANS has been used to study the assembly, dispersion, alignment and mixing of nanoscale condensed matter, as well as to characterise the internal structure of organic thin films, porous ...
openaire +3 more sources
Ultra-small-angle neutron scattering with azimuthal asymmetry [PDF]
Journal of Applied Crystallography, 2016 Small-angle neutron scattering (SANS) measurements from thin sections of rock samples such as shales demand as great a scattering vector range as possible because the pores cover a wide range of sizes. The limitation of the scattering vector range for pinhole SANS requires slit-smeared ultra-SANS (USANS) measurements that need to be converted to ...
Xin Gu, David F. R. Mildner
openaire +3 more sources
Liquid Argon Cryogenic Detector Calibration by Inelastic Scattering of Neutrons [PDF]
arXiv, 2014 A method for calibration of cryogenic liquid argon detector response to recoils with certain energy -8.2 keV - is proposed. The method utilizes a process of inelastic scattering of monoenergetic neutrons produced by fusion DD neutron generator. Features of kinematics of inelastic scattering cause sufficient (forty times) increase in count rate of ...
arxiv
The Ramsauer model for the total cross sections of neutron nucleus scattering [PDF]
arXiv, 2005 Theoretical study of systematics of neutron scattering cross sections on various materials for neutron energies up to several hundred MeV are of practical importance. In this paper, we analysed the experimental neutron scattering total cross sections from 20MeV to 550MeV using Ramsauer model for nuclei ranging from Be to Pb.
arxiv
Total cross section of neutron-proton scattering at low energies in quark-gluon model [PDF]
arXiv, 2011 We show that analysis of nonrelativistic neutron-proton scattering in a framework of relativistic QCD based quark model can give important information about QCD vacuum structure. In this model we describe total cross section of neutron-proton scattering at kinetic energies of projectile neutron from 1 eV up to 1 MeV.
arxiv
Neutron moderation spectrum considering inelastic scattering [PDF]
arXiv, 2018 For the first time an analytic expression was obtained for the inelastic neutron scattering law with an isotropic neutron source within the gas model, considering moderating medium temperature as a parameter. The inelastic scattering law is obtained, based on the solution of the kinematic problem of neutron inelastic scattering on a nucleus in ...
arxiv
Magnetic small-angle neutron scattering of bulk ferromagnets [PDF]
Journal of Physics: Condensed Matter, 2014 We summarize recent theoretical and experimental work in the field of magnetic small-angle neutron scattering (SANS) of bulk ferromagnets. The response of the magnetization to spatially inhomogeneous magnetic anisotropy and magnetostatic stray fields is computed using linearized micromagnetic theory, and the ensuing spin-misalignment SANS is deduced ...
openaire +3 more sources