Description: A great deal of information is known about the free-ion spectra of the neutral and singly ionized rare earths because of the ease with which these spectra can be produced. Considerably less is known about the doubly and triply ionized rare earths. A discussion of the experimental difficulties, the present state of knowledge, and the predicted information are presented in this report. 6 references, 13 figures.
Date: January 1, 1985
Creator: Conway, J.G.
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