G. E. Bromage, R. D. Cowan, B. C. Fawcett, and A. Ridgeley, "Classification of Be i-like and B i-like iron and vanadium spectra from laser-produced plasmas," J. Opt. Soc. Am. 68, 48-51 (1978)
Be i-like spectra of V xx and Fe xxiii and B i-like spectra of Fe xxii are classified as a result of spectroscopic observations of the plasmas formed by focusing the output of a neodymium glass laser onto plane solid targets. Wavelength measurements published by the Lebedev Institute, Moscow, were also used, for the iron spectra. The analysis was undertaken with the help of theoretical calculations of atomic energy levels and oscillator strengths.
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Key for Tables I and II
Classification based on present work.
Classification by Doschek et al., Refs. 8 and 9; Fe xxii also by Neupert et al., Ref. 10 and Fawcett et al., Ref. 11.
Classification by Fawcett et al., Ref. 11 and Fawcett and Hayes, Ref. 3.
Classification by Boiko et al., Refs. 4 and 5.
Revised identification.
Wavelength quoted measured in present work.
Wavelength quoted measured by Fawcett and Hayes, Ref. 3.
Wavelength quoted measured by Boiko et al., Ref. 1.
Blended.
Obscured by stronger line.
Weighted oscillator strength.
Line also identified in TFR tokamak spectrum of Schwob et al., Ref. 12
Note: Quoted observed intensities are measures of peak photographic density from densitometer traces; those for iron lines are as given by Boiko et al., Ref. 1.
Extrapolated predictions of Fawcett and Hayes, Ref. 3.
Note: The 2s2p2 2S1/2 and P1/2 levels are highly mixed. The designation quoted here is according to the largest percentage composition which is opposite to the designation usually given.
Key: Same as for Table I.
Table III
The mixed levels in Fe xxiii referred to in the text.
Key for Tables I and II
Classification based on present work.
Classification by Doschek et al., Refs. 8 and 9; Fe xxii also by Neupert et al., Ref. 10 and Fawcett et al., Ref. 11.
Classification by Fawcett et al., Ref. 11 and Fawcett and Hayes, Ref. 3.
Classification by Boiko et al., Refs. 4 and 5.
Revised identification.
Wavelength quoted measured in present work.
Wavelength quoted measured by Fawcett and Hayes, Ref. 3.
Wavelength quoted measured by Boiko et al., Ref. 1.
Blended.
Obscured by stronger line.
Weighted oscillator strength.
Line also identified in TFR tokamak spectrum of Schwob et al., Ref. 12
Note: Quoted observed intensities are measures of peak photographic density from densitometer traces; those for iron lines are as given by Boiko et al., Ref. 1.
Extrapolated predictions of Fawcett and Hayes, Ref. 3.
Note: The 2s2p2 2S1/2 and P1/2 levels are highly mixed. The designation quoted here is according to the largest percentage composition which is opposite to the designation usually given.
Key: Same as for Table I.
Table III
The mixed levels in Fe xxiii referred to in the text.