Results 141 to 150 of about 2,625 (196)

Spallation neutron source moderator design

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1998
Abstract This paper describes various aspects of the Spallation Neutron Source (SNS) moderator design. Included are the effects of varying the moderator location, interaction effects between moderators, and the impact on neutron output when various reflector materials are used. Also included is a study of the neutron output from composite moderators,
L.A. Charlton, J.M. Barnes, T.A. Gabriel, J.O. Johnson   +3 more
exaly   +2 more sources

The macromolecular neutron diffractometer at the spallation neutron source

2020
The Macromolecular Neutron Diffractometer known as MaNDi is located on beamline 11B of the Spallation Neutron Source at Oak Ridge National Laboratory. Neutrons are produced in discrete pulses at the Spallation Neutron Source, which enables Laue diffraction data through measuring the time-of-flight and thus wavelength of each diffracted neutron.
Leighton, Coates, Brendan, Sullivan
openaire   +2 more sources

Spallation neutron source GNEIS

Physics of Particles and Nuclei, 2018
A brief description of the spallation pulsed neutron source and neutron TOF spectrometer GNEIS based on the 1 GeV proton synchrocyclotron of PNPI in Gatchina is presented. The main parameters of the GNEIS are given in comparison with the analogous world-class facilities.
O. A. Shcherbakov, A. S. Vorobyev, E. M. Ivanov   +2 more
openaire   +1 more source

Neutrinos at the Spallation Neutron Source

AIP Conference Proceedings, 2007
The Spallation Neutron Source at Oak Ridge will provide an intense source of neutrinos in the tens of MeV range, which nicely overlaps with the supernova neutrino energy range. I will describe the Neutrinos at the SNS (νSNS) program planned to exploit this high power, high quality source for studies of neutrino cross‐sections relevant for supernova ...
K. Scholberg, Geralyn P. Zeller, Jorge G. Morfin, Flavio Cavanna   +3 more
openaire   +1 more source

Neutronics of pulsed spallation neutron sources

Reports on Progress in Physics, 2003
Various topics and issues on the neutronics of pulsed spallation neutron sources, mainly for neutron scattering experiments, are reviewed to give a wide circle of readers a better understanding of these sources in order to achieve a high neutronic performance.
openaire   +1 more source

Option for spallation neutron sources

Journal of Fusion Energy, 1989
Spallation reactions are a very important option for efficient neutron sources appropriate for fusion materials testing. An “option of this option” is the EURAC concept, which makes use of short-term accelerator technology in the cheapest way and is proved to provide the needed neutron flux to verify fast experiments on fusion materials performance ...
J. M. Perlado, M. Piera, J. Sanz
openaire   +1 more source

Neutron Scattering with Spallation Sources

Physics Today, 1985
The other articles in this issue are concerned with the variety of science that goes on at reactor-based neutron sources. Such sources, based on nuclear fission, have been available since 1942. It has been known since the 1930s that neutrons could be produced through spallation by sending a charged beam of accelerated protons or electrons into a target.
Gerard H. Lander, David L. Price
openaire   +1 more source

Spallation sources for neutron scattering

Physics Today, 1982
Low-energy neutrons are particulary well suited to probe crystalline, glassy and biological materials. The de Broglie wavelength of a thermal neutron is of the same order as interatomic spacings, and its anomalously high cross section for scattering off hydrogen nuclei makes it an especially useful probe for hydrogenous substances. Furthermore, because
openaire   +1 more source