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Accurate transition probabilities in ions obtained by isoelectronic smoothing of line strengths

Reistad, N. LU and Martinson, I. LU (1986) In Physical Review A 34(4). p.2632-2637
Abstract

Lifetime measurements, based on the method of beam-foil spectroscopy, together with careful corrections for cascade effects, have in recent years yielded the line strength of the 2s2 1S-2s2p 1P°transition in Be-like ions with uncertainties ranging from 3.4% to 8.1% in Bei-O. By applying a method of isoelectronic smoothing of line strengths, similar to those earlier used for excitation energies and transition wavelengths, we have reduced the experimental uncertainties by about a factor of 2, to 1.9-3.6 % for these transitions. The fitted results are in excellent agreement with the best theoretical data. The applicability of this method to other isoelectronic sequences is briefly discussed.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A
volume
34
issue
4
pages
6 pages
publisher
American Physical Society (APS)
external identifiers
  • scopus:0000829089
ISSN
1050-2947
DOI
10.1103/PhysRevA.34.2632
language
English
LU publication?
yes
id
32039494-26a1-4e70-b235-e6ecec4337db
date added to LUP
2018-03-17 10:29:01
date last changed
2018-05-29 09:48:12
@article{32039494-26a1-4e70-b235-e6ecec4337db,
  abstract     = {<p>Lifetime measurements, based on the method of beam-foil spectroscopy, together with careful corrections for cascade effects, have in recent years yielded the line strength of the 2s2 1S-2s2p 1P°transition in Be-like ions with uncertainties ranging from 3.4% to 8.1% in Bei-O. By applying a method of isoelectronic smoothing of line strengths, similar to those earlier used for excitation energies and transition wavelengths, we have reduced the experimental uncertainties by about a factor of 2, to 1.9-3.6 % for these transitions. The fitted results are in excellent agreement with the best theoretical data. The applicability of this method to other isoelectronic sequences is briefly discussed.</p>},
  author       = {Reistad, N. and Martinson, I.},
  issn         = {1050-2947},
  language     = {eng},
  number       = {4},
  pages        = {2632--2637},
  publisher    = {American Physical Society (APS)},
  series       = {Physical Review A},
  title        = {Accurate transition probabilities in ions obtained by isoelectronic smoothing of line strengths},
  url          = {http://dx.doi.org/10.1103/PhysRevA.34.2632},
  volume       = {34},
  year         = {1986},
}