Memorias de investigación
Artículos en revistas:
A new set of relativistic screening constants for the screened hydrogenic model
Año:2011
Áreas de investigación
  • Ingenierías
Datos
Descripción
A new Relativistic Screened Hydrogenic Model has been developed to calculate atomic data needed to compute the optical and thermodynamic properties of high energy density plasmas. The model is based on a new set of universal screening constants, including nlj-splitting that has been obtained by fitting to a large database of ionization potentials and excitation energies. This database was built with energies compiled from the National Institute of Standards and Technology (NIST) database of experimental atomic energy levels, and energies calculated with the Flexible Atomic Code (FAC). The screening constants have been computed up to the 5p3=2 subshell using a Genetic Algorithm technique with an objective function designed to minimize both the relative error and the maximum error. To select the best set of screening constants some additional physical criteria has been applied, which are based on the reproduction of the filling order of the shells and on obtaining the best ground state configuration. A statistical error analysis has been performed to test the model, which indicated that approximately 88% of the data lie within a ?10% error interval. We validate the model by comparing the results with ionization energies, transition energies, and wave functions computed using sophisticated self-consistent codes and experimental data.
Internacional
Si
JCR del ISI
Si
Título de la revista
High Energy Density Physics
ISSN
1574-1818
Factor de impacto JCR
0
Información de impacto
Volumen
7
DOI
Número de revista
Desde la página
169
Hasta la página
179
Mes
SIN MES
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Participantes
  • Autor: M.A. Mendoza Universidad de Las Palmas de Gran Canarias
  • Autor: J.G. Rubiano Universidad de Las Palmas de Gran Canarias
  • Autor: J.M. Gil Universidad de Las Palmas de Gran Canarias
  • Autor: R. Rodríguez Universidad de Las Palmas de Gran Canarias
  • Autor: R. Florido Universidad de Las Palmas de Gran Canarias
  • Autor: P. Martel Universidad de Las Palmas de Gran Canarias
  • Autor: Emilio Minguez Torres UPM
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear