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Electronic structure of neutral and singly ionized curium

Conference ·
OSTI ID:6448612
Extensive observations and analyses of the emission spectra of neutral and singly ionized curium, Cm I and Cm II, have resulted in the determination of 785 Cm I and 598 Cm II energy levels. These levels then combine to classify 9145 of the more than 14,250 lines of /sup 244/Cm observed between 240 and 2650 nm. Most of the levels have Lande g-values from Zeeman effect data and isotope shifts trom measurements of spectra from sources with various enrichments of /sup 244/Cm, /sup 245/Cm, /sup 246/Cm, and /sup 248/Cm. These data allowed many levels to be assigned to specific electronic configurations. The ground configurations of Cm I and Cm II are (Rn) 5f/sup 7/6d7s/sup 2/ and (Rn) 5f/sup 7/7s/sup 2/, respectively. The realtive energies of other electronic configurations of Cm are given and compared with analogous configurations in other actinides and in Gd its lanthanide analogue. 2 refs., 5 figs., 7 tabs.
Research Organization:
Lawrence Livermore National Lab., CA (USA); Lawrence Berkeley Lab., CA (USA); Centre National de la Recherche Scientifique, 91 - Orsay (France). Lab. Aime Cotton
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
6448612
Report Number(s):
UCRL-90712; CONF-841210-30; ON: DE86002625
Country of Publication:
United States
Language:
English