Artículo
Vibrational spectra of light and heavy water with application to neutron cross section calculations
Fecha de publicación:
07/2013
Editorial:
American Institute Of Physics
Revista:
Journal Of Chemical Physics
ISSN:
0021-9606
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The design of nuclear reactors and neutron moderators require a good representation of the interaction of low energy (E < 1 eV) neutrons with hydrogen and deuterium containing materials. These models are based on the dynamics of the material, represented by its vibrational spectrum. In this paper, we show calculations of the frequency spectrum for light and heavy water at room temperature using two flexible point charge potentials: SPC-MPG and TIP4P/2005f. The results are compared with experimental measurements, with emphasis on inelastic neutron scattering data. Finally, the resulting spectra are applied to calculation of neutron scattering cross sections for these materials, which were found to be a significant improvement over library data.
Palabras clave:
Molecular Dynamics
,
Neutron Scattering
,
Heavy Water
,
Light Water
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Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Marquez Damian, Jose Ignacio; Malaspina, David Cesar; Granada, Jose Rolando; Vibrational spectra of light and heavy water with application to neutron cross section calculations; American Institute Of Physics; Journal Of Chemical Physics; 139; 2; 7-2013; 1-6; 24504
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