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Laser-rf double-resonance measurements of the hyperfine structure in sup 49 Ti II

Journal Article · · Physical Review A. General Physics; (United States)
; ; ; ;  [1]
  1. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States) Physics Department, Western Michigan University, Kalamazoo, Michigan 49009 (United States) Physics Department, Michigan Technological University, Houghton, Michigan 49931 (United States)
The hyperfine structures of six metastable levels arising from the 3{ital d}{sup 2}4{ital s} and 3{ital d}{sup 3} configurations in {sup 49}Ti II have been measured with high precision using the laser-rf double-resonance technique in a collinear laser--ion-beam geometry. The hfs constants {ital A} and {ital B} were determined to about 4 and 43 kHz, respectively. Less precise results are also reported for the 2{ital p}{sub 1/2} level of the 3{ital d}{sup 3} configuration and for five upper levels in the 3{ital d}{sup 2}4{ital p} configuration. For these states, the optical spectra had Doppler widths of about 40 MHz, leading to {ital A} values determined to about 1 MHz. The results are compared with the presently available Hartree-Fock (HF) calculations. Good agreement is obtained with the HF results only in some cases. Substantial corrections due to many-body interactions and relativistic effects are required for other cases.
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
7198440
Journal Information:
Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 46:9; ISSN 1050-2947; ISSN PLRAA
Country of Publication:
United States
Language:
English