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RESEARCH PRODUCT

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

B.nguyen QuangJ. KuszS. WenigerA. Goly

subject

RadiationMaterials sciencePraseodymiumchemistry.chemical_elementPlasmaPhotoelectric effectFerroelectricityAtomic and Molecular Physics and OpticsMolecular electronic transitionSpectral linechemistryExcited stateEmission spectrumAtomic physicsSpectroscopy

description

Abstract 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 62PrII-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 and some of our results.

https://doi.org/10.1016/0022-4073(91)90005-b