Mathematics – Spectral Theory
Scientific paper
Dec 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jqsrt..16.1133t&link_type=abstract
Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 16, Dec. 1976, p. 1133-1136.
Mathematics
Spectral Theory
1
Helium Ions, Line Spectra, Plasma Spectra, Spectral Theory, Arc Discharges, Photopeak, Pulsed Radiation
Scientific paper
The paper reports discrepancies between the published theoretical calculations of the line profiles for allowed-forbidden transition pairs in neutral helium and observations of the He I line near 4471 A in a pulsed arc plasma with an electron density of about 10 to the 16th/cu cm. It is suggested that insufficient wavelength precision in the results reported previously by others has obscured the apparent fact that the peaks in the experimental profile do not follow the wavelength shifts predicted by theory.
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