Lifetime measurements of individual hyperfine levels using localized Doppler tuning in laser excitation of fast ions

Journal Article · Sat Apr 15 04:00:00 EDT 1989 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.39.3969· OSTI ID:6456719

Short, R T; Mannervik, S; Larsson, M; Sigray, P; Sonnek, D

Lifetimes of each hyperfine level of the 6p /sup 4/P/sub 5/2/ state of singly charged /sup 129/Xe and /sup 131/Xe have been measured using laser excitation of a fast-ion beam. The collinear laser- and ion-beam arrangement was used to achieve high spectral resolution, and transitions to each hyperfine level were locally Doppler tuned into resonance between a pair of post-accelerating electrodes. Decay to the 6s/sup 4/P/sub 5/2/ state was observed through a monochromator immediately after the post-acceleration field, and cascade-free lifetimes were then determined by mechanically varying the distance between the excitation and observation points. Depletion of close-lying hyperfine levels prior to the excitation region was necessary in /sup 131/Xe to sufficiently isolate transitions for these measurements. These results form the first set of lifetime measurements for each hyperfine level within a particular J state of an atomic ion. Although no variation in lifetime with F quantum number was detected outside of the determined error bars, application to studies of hyperfine-induced mixing is discussed.

• Research Organization: Manne Siegbahn Institute of Physics, S-104chemically bond05 Stockholm, Sweden
• OSTI ID: 6456719
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 39:8; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
BEAM DYNAMICS
BEAM-BEAM INTERACTIONS
CHARGED PARTICLES
COLLISIONS
CONFIGURATION MIXING
DATA
ELECTROMAGNETIC RADIATION
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXPERIMENTAL DATA
HYPERFINE STRUCTURE
INFORMATION
INTERACTIONS
ION COLLISIONS
IONS
LASER RADIATION
LIFETIME
MEASURING METHODS
NUMERICAL DATA
PHOTON COLLISIONS
PHOTON-ION COLLISIONS
RADIATIONS
STARK EFFECT
XENON IONS