Ground-state hyperfine-structure measurements of unstable Eu{sup +} isotopes in a Paul ion trap

Journal Article · Tue Jul 01 04:00:00 EDT 1997 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.56.265· OSTI ID:531768

Enders, K; Stachowska, E; Marx, G; Zoelch, C; Georg, U; Dembczynski, J; Werth, G ^[1]

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1. Institut fuer Physik, Universitaet Mainz, D-55099 Mainz (Germany)

Hyperfine separations in unstable Eu{sup +} ions of mass 148, 149, and 150 have been measured in laser-microwave double-resonance experiments in a Paul ion trap. In spite of the small available quantities of the isotopes, the experimental uncertainties are of the order of 10{sup {minus}8} or below, which is of the same order as in earlier measurements on stable isotopes of Eu{sup +}. Extensive second-order perturbation calculation is required to obtain coupling constants for magnetic-dipole (A) and electric-quadrupole (B) interactions. The uncertainties are a few times 10{sup {minus}7} for A and 10{sup {minus}3} for B. The experiments are a step in an attempt to determine the differential hyperfine anomaly (Bohr-Weisskopf effect) in a long chain of isotopes. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 531768
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 1 Vol. 56; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CATIONS
EUROPIUM
EUROPIUM 148
EUROPIUM 150
EUROPIUM IONS
GROUND STATES
HYPERFINE STRUCTURE
ISOTOPE EFFECTS
MICROWAVE SPECTRA
PERTURBATION THEORY
RADIATION PRESSURE
TRAPS