Wavelengths and energy levels of doubly ionized uranium (U III) obtained using a Fourier-transform spectrometer

Journal Article · Wed Aug 01 04:00:00 EDT 1984 · J. Opt. Soc. Am. B: Opt. Phys.; (United States)

DOI:https://doi.org/10.1364/JOSAB.1.000609· OSTI ID:5813523

Palmer, B A; Engleman, R Jr

The term analysis of complex doubly ionized spectra is made more difficult by the large number of neutral and singly ionized lines that accompany the desired spectra as well as the lack of precision in wavelengths and intensities obtained from conventional spectrographs. To overcome these difficulties, a Fourier-transform spectrometer was used to obtain the spectra of uranium in a hollow cathode filled with a helium-argon mixture or neon. The separation of ion stages was based on the intensity variation of the doubly ionized lines between the two spectra. The wavelength accuracy permitted the first reported determination of energy levels in doubly ionized uranium. 22 low-lying odd levels and 36 high-lying even levels are reported. The Fourier-transform spectrometer is a useful and appropriate instrument for starting the analysis of complex ionized spectra because of its wavelength and intensity accuracy. 13 references, 4 tables.

• Research Organization: Los Alamos National Lab., NM
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5813523
• Journal Information: J. Opt. Soc. Am. B: Opt. Phys.; (United States), Journal Name: J. Opt. Soc. Am. B: Opt. Phys.; (United States) Vol. 1:4; ISSN JOBPD
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDES
DATA
ELEMENTS
ENERGY LEVELS
EXPERIMENTAL DATA
FOURIER TRANSFORMATION
INFORMATION
INTEGRAL TRANSFORMATIONS
IONIZATION
METALS
NUMERICAL DATA
TRANSFORMATIONS
URANIUM