A new set of relativistic screening constants for the screened hydrogenic model

Mendoza, M.A.; Garcia Rubiano, Jesus; Gil, J.M.; Rodríguez, Rafael; Florido, Ricardo; Martel, Pablo y Mínguez Torres, Emilio (2011). A new set of relativistic screening constants for the screened hydrogenic model. "High Energy Density Physics", v. 7 (n. 3); pp. 169-179. ISSN 1574-1818. https://doi.org/10.1016/j.hedp.2011.04.006.

Descripción

Título: A new set of relativistic screening constants for the screened hydrogenic model
Autor/es:
  • Mendoza, M.A.
  • Garcia Rubiano, Jesus
  • Gil, J.M.
  • Rodríguez, Rafael
  • Florido, Ricardo
  • Martel, Pablo
  • Mínguez Torres, Emilio
Tipo de Documento: Artículo
Título de Revista/Publicación: High Energy Density Physics
Fecha: Septiembre 2011
Volumen: 7
Materias:
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Ingeniería Nuclear [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (1MB) | Vista Previa

Resumen

AnewRelativisticScreenedHydrogenicModel 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 anewset of universal screeningconstants, 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 screeningconstants 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 screeningconstants 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.

Más información

ID de Registro: 11165
Identificador DC: http://oa.upm.es/11165/
Identificador OAI: oai:oa.upm.es:11165
Identificador DOI: 10.1016/j.hedp.2011.04.006
Depositado por: Memoria Investigacion
Depositado el: 26 Jun 2012 09:54
Ultima Modificación: 20 Abr 2016 19:19
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM