Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Polarizabilities of Rn-like Th{sup 4+} from rf spectroscopy of Th{sup 3+} Rydberg levels

Journal Article · · Physical Review. A
; ;  [1]
  1. Department of Physics, Colorado State University, Fort Collins, Colorado 80523 (United States)
High-resolution studies of the fine-structure pattern in high-L n = 37 levels of Th{sup 3+} have been carried out using radio-frequency (rf) spectroscopy detected with resonant excitation Stark ionization spectroscopy (RESIS). Intervals separating L = 9 to L = 15 levels have been measured, and the results analyzed with the long-range effective potential model. The dipole polarizability of Th{sup 4+}is determined to be {alpha}{sub D} = 7.720(7) a.u. The quadrupole polarizability is found to be 21.5(3.9) a.u. Both measurements represent significant tests of a priori theoretical descriptions of this highly relativistic ion.
OSTI ID:
21550098
Journal Information:
Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English