{sup 89,90}Sr-determination in various environmental samples by collinear resonance ionization spectroscopy

Journal Article · Wed Jan 01 04:00:00 EST 1997 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.52230· OSTI ID:575584

Wendt, K; Bushaw, B A; Bhowmick, G ^[1]; Bystrow, V A; Kotovski, N ^[2]; Kratz, J; Lantzsch, J; Mueller, P; Noertershaeuser, W; Otten, E W ^[1]; Seibert, A; Trautmann, N; Waldek, A ^[3]; Yushkevich, Y ^[2]

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1. Institut fuer Physik, Johannes Gutenberg-Universitaet, D-55099 Mainz (Germany)
2. Joint Institute for Nuclear Research, Dubna (Russian Federation)
3. Institut fuer Kernchemie, Johannes Gutenberg-Universitaet, D-55099 Mainz (Germany)

The application of Collinear Resonance Ionization Spectroscopy for the determination of {sup 89,90}Sr contaminations in various environmental samples is presented, demonstrating the versatility of this highly specialized and isotope-selective ultra-trace determination technique. Additionally to these studies we have analysed the different processes, which lead to nonselective ionization and hence cause background. Optimization of the experimental conditions resulted in a significant lowering of the detection limit to a value of 3{times}10{sup 6} atoms of {sup 90}Sr (corresponding to an activity of 2mBq) in the presence of up to 10{sup 17}atoms of stable {sup 88}Sr. In a parallel measurement trace determination of both isotopes {sup 89}Sr and {sup 90}Sr is possible with a detection limit for {sup 89}Sr of 10{sup 8}atoms. Measurements on different samples, ranging from air filter samples of 1958 up to today, soil, vegetation, milk and human urine samples as well as cooling water from nuclear power plants document the applicability and the specifications of the technique. {copyright} {ital 1997 American Institute of Physics.}

• Sponsoring Organization: USDOE
• OSTI ID: 575584
• Report Number(s): CONF-960686--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 388; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
CONTAMINATION
DETECTION
ENVIRONMENTAL MATERIALS
MASS SPECTROSCOPY
PHOTOIONIZATION
RESONANCE
STRONTIUM 80
STRONTIUM 90