Relativistic calculations of M-shell photoionization and X-ray production cross-sections for Hg at 5.96 keV excitation energy

J.M. Sampaio, T. I. Madeira, F. Parente, P. Indelicato, J. P. Santos, J. P. Marques

Research output: Contribution to journalArticlepeer-review

Abstract

In this work we calculate photoionization and X-ray production cross-sections (XPCS) of M-shell vacancies in Hg at an incident photon energy of 5.96 keV (low energy X-rays of Fe-55 radioactive source) using the Dirac-Fock method. Calculations are performed in single configuration approach with the Breit interaction and some vacuum polarization corrections included in the self-consistent method. Higher-order retardation corrections, self-energy and other vacuum polarization effects were also included as perturbations. Fluorescence and Coster-Kronig yields necessary to derive XPCS were obtained in a previous work using the exact same approach. (C) 2014 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)36-39
Number of pages4
JournalRadiation Physics and Chemistry
Volume107
DOIs
Publication statusPublished - Feb 2015

Keywords

  • Photoionization
  • X-ray production
  • Cross-sections
  • Ditac-Fock calculations
  • DIRAC-FOCK CALCULATIONS
  • FLUORESCENCE YIELDS
  • KEV PHOTONS
  • RADIATIONLESS TRANSITIONS
  • ELEMENTS
  • IONS
  • REGION
  • AU

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