Limits...
Critically Evaluated Energy Levels and Spectral Lines of Singly Ionized Indium (In II).

Kramida A - J Res Natl Inst Stand Technol (2013)

Bottom Line: Uncertainties of the energy level values have been reduced by an order of magnitude.An improved value of the ionization limit of In II has been determined by fitting quantum-defect and polarization formulas for several series of levels.The hyperfine structure interval in the 5s (2)S ground state of In III has been determined from the measurements of the 5sng and 5snh series in In II.

View Article: PubMed Central - PubMed

Affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899.

ABSTRACT
A comprehensive list of the best measured wavelengths in the In II spectrum has been compiled. Uncertainties of the wavelength measurements have been analyzed, and existing inconsistencies have been resolved. An optimized set of fine-structure energy levels that fits all observed wavelengths has been derived. Uncertainties of the energy level values have been reduced by an order of magnitude. An improved value of the ionization limit of In II has been determined by fitting quantum-defect and polarization formulas for several series of levels. Intensities of lines observed by different authors have been analyzed and converted to a uniform scale. A set of recommended values of radiative transition rates has been critically compiled, and uncertainties of these rates have been estimated. The hyperfine structure interval in the 5s (2)S ground state of In III has been determined from the measurements of the 5sng and 5snh series in In II.

No MeSH data available.


Related in: MedlinePlus

A logarithmic plot of the spectral sensitivity of grating observations of Paschen and Campbell [2] in the first order of diffraction against wavelength. The solid line is a quadratic least-squares fit to the data points.
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f2-jres.118.004: A logarithmic plot of the spectral sensitivity of grating observations of Paschen and Campbell [2] in the first order of diffraction against wavelength. The solid line is a quadratic least-squares fit to the data points.

Mentions: Similar plots were built for observations made with the three-prism spectrograph and with the grating spectra in various orders of diffraction. As a sample, the plot of the spectral sensitivity of the grating observations in the first order of diffraction is given in Fig. 2.


Critically Evaluated Energy Levels and Spectral Lines of Singly Ionized Indium (In II).

Kramida A - J Res Natl Inst Stand Technol (2013)

A logarithmic plot of the spectral sensitivity of grating observations of Paschen and Campbell [2] in the first order of diffraction against wavelength. The solid line is a quadratic least-squares fit to the data points.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4487322&req=5

f2-jres.118.004: A logarithmic plot of the spectral sensitivity of grating observations of Paschen and Campbell [2] in the first order of diffraction against wavelength. The solid line is a quadratic least-squares fit to the data points.
Mentions: Similar plots were built for observations made with the three-prism spectrograph and with the grating spectra in various orders of diffraction. As a sample, the plot of the spectral sensitivity of the grating observations in the first order of diffraction is given in Fig. 2.

Bottom Line: Uncertainties of the energy level values have been reduced by an order of magnitude.An improved value of the ionization limit of In II has been determined by fitting quantum-defect and polarization formulas for several series of levels.The hyperfine structure interval in the 5s (2)S ground state of In III has been determined from the measurements of the 5sng and 5snh series in In II.

View Article: PubMed Central - PubMed

Affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899.

ABSTRACT
A comprehensive list of the best measured wavelengths in the In II spectrum has been compiled. Uncertainties of the wavelength measurements have been analyzed, and existing inconsistencies have been resolved. An optimized set of fine-structure energy levels that fits all observed wavelengths has been derived. Uncertainties of the energy level values have been reduced by an order of magnitude. An improved value of the ionization limit of In II has been determined by fitting quantum-defect and polarization formulas for several series of levels. Intensities of lines observed by different authors have been analyzed and converted to a uniform scale. A set of recommended values of radiative transition rates has been critically compiled, and uncertainties of these rates have been estimated. The hyperfine structure interval in the 5s (2)S ground state of In III has been determined from the measurements of the 5sng and 5snh series in In II.

No MeSH data available.


Related in: MedlinePlus