Collinear laser and slow-ion-beam apparatus for high-precision laser-rf double-resonance spectroscopy

Journal Article · Fri Jan 01 04:00:00 EST 1988 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1139969· OSTI ID:5647395

Sen, A; Goodman, L S; Childs, W J

A new apparatus has been constructed for high-precision hyperfine structure measurement of atomic ions by laser-radio-frequency double-resonance technique involving a slow ion beam and a laser in collinear geometry. The low ion energy (1--1.5 keV) leads to longer interaction time with the applied rf field. Consequently, extremely narrow linewidths of approx.60 kHz have been observed for the first time in such systems. The apparatus has been used for the measurement of hyperfine structure of the 4f/sup 7/(/sup 8/S/sup 0/)5d/sup 9/D/sup 0//sub 2,3,4,5/ metastable levels in /sup 151/Eu/sup +/ and /sup 153/Eu/sup +/. The magnetic dipole and the electric quadrupole hyperfine constants, A and B, respectively, have been determined with higher precision (2--3 orders of magnitude).

• Research Organization: Physics Division, Argonne National Laboratory, Argonne, Illinois 60439-4843
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5647395
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 59:1; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ANL
ATOMIC BEAMS
ATOMIC IONS
BEAM DYNAMICS
BEAM-BEAM INTERACTIONS
BEAMS
CHARGED PARTICLES
DOPPLER EFFECT
DOUBLE RESONANCE METHODS
EUROPIUM IONS
HYPERFINE STRUCTURE
ION BEAMS
IONS
LASER SPECTROSCOPY
NATIONAL ORGANIZATIONS
SPECTROSCOPY
US AEC
US DOE
US ERDA
US ORGANIZATIONS