Accurate wavelengths for X-ray spectroscopy and the NIST hydrogen-like ion database

S. A. Kotochigova, K. P. Kirby, N. S. Brickhouse, P. J. Mohr, I. I. Tupitsyn

Research outputpeer-review

3 Citations (Scopus)

Abstract

We have developed an ab initio multi-configuration Dirac-Fock-Sturm method for the precise calculation of X-ray emission spectra, including energies, transition wavelengths and transition probabilities. The calculations are based on non-orthogonal basis sets, generated by solving the Dirac-Fock and Dirac-Fock-Sturm equations. Inclusion of Sturm functions into the basis set provides an efficient description of correlation effects in highly charged ions and fast convergence of the configuration interaction procedure. A second part of our study is devoted to developing a theoretical procedure and creating an interactive database to generate energies and transition frequencies for hydrogen-like ions. This procedure is highly accurate and based on current knowledge of the relevant theory, which includes relativistic, quantum electrodynamic, recoil, and nuclear size effects.

Original languageEnglish
Title of host publicationX-RAY DIAGNOSTICS OF ASTROPHYSICAL PLASMAS
Subtitle of host publicationTheory, Experiment, and Observation
Pages161-171
Number of pages11
Volume774
DOIs
Publication statusPublished - 13 Jun 2005
EventX-RAY DIAGNOSTICS OF ASTROPHYSICAL PLASMAS: Theory, Experiment, and Observation - Cambridge, MA
Duration: 15 Nov 200417 Nov 2004

Conference

ConferenceX-RAY DIAGNOSTICS OF ASTROPHYSICAL PLASMAS: Theory, Experiment, and Observation
CountryUnited States
CityCambridge, MA
Period15/11/0417/11/04

Scopus subject areas

  • Physics and Astronomy(all)

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