Laser Spectroscopy of Short Lived Rare Earth Isotopes

Journal Article · Tue Aug 26 04:00:00 EDT 2003 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1619703· OSTI ID:20632567

Schuessler, H A ^[1]; Buchinger, F ^[2]; Iimura, H ^[3]

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1. Texas A and M University, College Station (United States)
2. McGill University, Montreal (Canada)
3. JAERI, Tokai Mura (Japan)

The ISAC facility at TRIUMF is able to produce intense beams of mass-separated radioactive isotopes of the alkali and the rare earth elements with unprecedented intensities. This will allow our laser spectroscopy collaboration to extend the studies of exotic nuclei for these elements further away from the valley of stability into regions so far inaccessible at other facilities, thus allowing a more stringent test of the descriptive and predictive power of global nuclear models. Our effort, which involves groups and researchers from the U.S. (TAMU), Japan (JAERI), and Canada (TRIUMF,McGill and Calgary Universities) is based on collinear laser spectroscopy in a fast beam. In this method, atoms or ions are excited by laser light in collinear geometry. In this way measurements of the optical isotope shift yield the nuclear charge radii and measurements of the hyperfine structure the nuclear moments. The excitation can be done by cw-lasers or alternatively by pulsed lasers without a loss in sensitivity, if bunched radioactive ion beams are available. In its basic version, the resonances of the spectral lines are observed optically at right angles. However, the sensitivity will be increased through modifications using particle or nuclear radiation detection. The progress and the plans of our collaboration will be described.

• OSTI ID: 20632567
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 680; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ATOMIC NUMBER
EXCITATION
HYPERFINE STRUCTURE
LASER RADIATION
LASER SPECTROSCOPY
NUCLEAR MODELS
PARTICLE IDENTIFICATION
RADIATION DETECTION
RADIOACTIVE ION BEAMS
RARE EARTH NUCLEI
RESONANCE