Lifetimes of Tc I (4d + 5s) < sup> 6 5p and 4d < sup> 6 5s < sup> 6 D States

Document Type

Article

Publication Date

10-1-2003

Abstract

Lifetimes, branching ratios and Landé g values have been obtained from relativistic configuration interaction calculations for all J = 5/2 - 11/2 odd parity levels below 34516 cm-1 and for the 6D J = 3/2 - 9/2 even parity levels. From these results, we propose the 6D 9/2e → 6F11/2o transition for possible use in atomic trap trace analysis (ATTA) studies. Due to the increased number (n) of d electrons as compared to our earlier work (7 vs. 4). these calculations were time consuming and required several improvements in computational equipment and strategy. As expected, average energy errors are larger (∼1450 cm-1), and f value gauge agreement (∼19%) is worse than achieved in lower n states.

Publication Title

Physica Scripta

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