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Appendix B. Observed and Classified Lines of Hf 1-Continued

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Appendix B. Observed and Classified Lines of Hf 1—Continued

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Appendix B. Observed and Classified Lines of Hf 1-Continued

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Appendix B. Observed and Classified Lines of Hf 1-Continued

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Library of Congress Catalog Card Number: 76-872

16. ABSTRACT (A 200-word or less factual summary of most significant information. If document includes a significant bibliography or literature survey, mention it here.)

The present publication terminates the work on the analysis of Hf I which was started by the late W. F. Meggers in 1928 and left unfinished in 1966. His final line list contains some 4700 lines of which about 67 percent have been classified. Observed g-values are known for 198 levels. The reliability of the Zeeman observations is indicated in tables containing sums of Observed and Landé g-values for selected groups of "even" and "odd" terms.

An attempt has been made to continue Meggers' analysis in LS-coupling as far as possible. This coupling is not rigorous in Hf I, and many intervals are irregular. Consequently, the levels are given also in numerical order with the even and odd levels presented in separate tables.

An ionization limit of 54700 ± 600 cm

-1, giving an ionization potential of 6.78±0.07

eV has been derived from a two-member series.

The long line lists are given in two Appendices: Appendix A contains the observed Zeeman data for the individual lines, 531 in all; Appendix B consists of the complete line list of observed and classified lines.

By far the greater part of the analysis is that Meggers. Detailed notes explain changes that have been introduced and additions to this work.

17. KEY WORDS (six to twelve entries; alphabetical order; capitalize only the first letter of the first key word unless a proper name; separated by semicolons)

Analysis, Hf I spectrum; hafnium, analysis of first spectrum; spectrum, Hf I;
Zeeman effect, Hf I.

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