Core polarization effects: oscillator strengths, transition probabilities and radiative lifetimes of levels in Bi IV

Moreno Díaz, Cristina and Alonso Medina, Aurelia (2019). Core polarization effects: oscillator strengths, transition probabilities and radiative lifetimes of levels in Bi IV. "Atomic Data and Nuclear Data Tables", v. 125 ; pp. 313-322. ISSN 0092-640X. https://doi.org/10.1016/j.adt.2018.05.001.

Description

Title: Core polarization effects: oscillator strengths, transition probabilities and radiative lifetimes of levels in Bi IV
Author/s:
  • Moreno Díaz, Cristina
  • Alonso Medina, Aurelia
Item Type: Article
Título de Revista/Publicación: Atomic Data and Nuclear Data Tables
Date: January 2019
ISSN: 0092-640X
Volume: 125
Subjects:
Faculty: E.T.S.I. Diseño Industrial (UPM)
Department: Ingeniería Eléctrica, Electrónica Automática y Física Aplicada
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In this work a systematic analysis of Bi IV atomic properties is presented. Ab initio relativistic Hartree–Fock calculations in an intermediate coupling (IC) formalism and taking into account Core Polarization Effects (CPE) are used. We use for the IC calculations the standard method of least square fitting of experimental energy levels by means of computer codes from Cowan which was modified in order to include CPE. Our calculations have been made from 17 configurations of Bi IV: 5d¹º6s², 5d¹º6p², 5d¹º6sns (n=7–10) and 5d¹º6snd (n=6–9) for even parity and 5d¹º6snp (n=6,7), 5d¹º6snf (n=5,6), 5d⁹6s²6p and 5d⁹6s²nf (n=5,6) for odd parity. Transition probabilities and oscillator strengths for 100 lines and some radiative lifetimes of Bi IV have been calculated. Besides a comparison of our results with the scarce experimental values available in the bibliography are presented. The presence of spectral lines of bismuth in stellar atmospheres has been reported in different stars. This is the motivation by this work can be very interest in astrophysical area. Recently the Bi IV is taking importance because it is considered as the main dopant in the prospective used for the design and synthesis of new scintillators.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMAT2015-63974-C4-2-RUnspecifiedUnspecifiedTratamiento mediante LSP de aleaciones de magnesio biodegradables y bioreadsorbibles como método de mejora de sus propiedades mecánicas

More information

Item ID: 55605
DC Identifier: http://oa.upm.es/55605/
OAI Identifier: oai:oa.upm.es:55605
DOI: 10.1016/j.adt.2018.05.001
Official URL: https://www.sciencedirect.com/science/article/pii/S0092640X18300317
Deposited by: Memoria Investigacion
Deposited on: 27 Jun 2019 08:20
Last Modified: 27 Jun 2019 08:20
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