Diode-laser-based RIMS measurements of strontium-90
- Pacific Northwest National Laboratory, Richland, Washington 99352 (United States)
Double- and triple-resonance excitation schemes for the ionization of strontium are presented. Use of single-mode diode lasers for the resonance excitations provides a high degree of optical isotopic selectivity: with double-resonance, selectivity of {gt}10{sup 4} for {sup 90}Sr against the stable Sr isotopes has been demonstrated. Measurement of lineshapes and stable isotope shifts in the triple-resonance process indicate that optical selectivity should increase to {approximately}10{sup 9}. When combined with mass spectrometer selectivity this is sufficient for measurement of {sup 90}Sr at background environmental levels. Additionally, autoionizing resonances have been investigated for improving ionization efficiency with lower power lasers. {copyright} {ital 1998 American Institute of Physics.}
- Research Organization:
- Pacific Northwest National Laboratory
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 365952
- Report Number(s):
- CONF-9806123--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 454; ISSN 0094-243X; ISSN APCPCS
- Country of Publication:
- United States
- Language:
- English
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