Transition probabilities of PrII-lines emitted from a ferroelectric plasma source

Details Transition probabilities of PrII-lines emitted from a ferroelectric plasma source Transition probabilities of PrII-lines emitted from a ferroelectric plasma source

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jqsrt..45..157g&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer (ISSN 0022-4073), vol. 45, March 1991, p. 157-163. Research supporte

Physics

15

Argon, Ferroelectricity, Plasma Radiation, Praseodymium, Transition Probabilities, Acoustic Frequencies, Emission Spectra, Line Spectra, Spectrographs

Scientific paper

An argon-praseodymium plasma was generated under atmospheric pressure between a ceramic ferroelectric plate and a praseodymium plate. The system of plates was connected to an acoustic frequency supply. The plasma radiation was analyzed in the spectral range from 2000 to 7000 A by using a grating spectrograph with a linear dispersion near 1 mm/A, adopted to photoelectric measurements. The emission spectrum of praseodymium was recorded, and the intensities of a few hundred lines were measured. Transition probabilities were determined for 62 PrII-lines, using available lifetime data for excited levels and measured branching ratios of the corresponding lines. Reasonable agreement has been found between the experimental data of Lage and Whaling (1976) and some of the present results.

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