The FERRUM project: experimental lifetimes of highly excited FeII 3d(6)4p levels and transition probabilities

Authors
Sikstrom, CM Schultz-Johanning, M Kock, M Li, ZS Nilsson, H Johansson, S Lundberg, HL Raassen, AJJ
Citation
Cm. Sikstrom et al., The FERRUM project: experimental lifetimes of highly excited FeII 3d(6)4p levels and transition probabilities, J PHYS B, 32(24), 1999, pp. 5687-5698
Citations number
19
Categorie Soggetti
Physics
Journal title
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
ISSN journal
09534075 → ACNP
Volume
32
Issue
24
Year of publication
1999
Pages
5687 - 5698
Database
ISI
SICI code
0953-4075(199912)32:24<5687:TFPELO>2.0.ZU;2-9
Abstract
We report on measurements of radiative lifetimes in singly ionized iron of six 3d(6)4p levels between 61 512 and 64 041 cm(-1),using time resolved las er-induced fluorescence. Absolute oscillator strengths of 18 Fe II lines in the wavelength range from 2350 to 2800 Angstrom have been obtained by meas uring branching fractions for the lines from two Fe II levels with a Fourie r-transform spectrometer. The uncertainty in the lifetimes is between 8% an d 13%, whereas the uncertainty of the f-values varies between 9% and 19%. A comparison with several previously published values is given.