Published December 1999
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Development of accelerator mass spectrometry (AMS) for the detection of 81Kr and first application to groundwater dating
- 1. Institut fuer Radiumforschung und Kernphysik der Universitaet Wien (Austria)
- 2. Universitaet Bern, Physikalisches Institut, Bern (Switzerland)
Description
Isotopic ratios of 81Kr/Kr were measured with accelerator mass spectrometry in pre-nuclear atmospheric krypton and in modem krypton. Within the experimental uncertainty (±30%) the 81Kr/Kr ratios were found to be the same. This establishes 81Kr (t1/2 = 230,000 years) as a long-lived cosmogenic radionuclide essentially unaffected by anthropogenic contributions. First applications of 81Kr to groundwater dating in the Great Artesian Basin of Australia enabled to obtain mean residence times of 225,000 to 400,000 years. (author)
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Additional details
Publishing Information
- Imprint Title
- Isotope techniques in water resources development and management. Proceedings
- Imprint Pagination
- [CD-ROM]
- Journal Issue
- no. 2/C
- Series
- C and S papers series
- Journal Page Range
- [6 p.]
- ISSN
- 1562-4153
Conference
- Title
- International symposium on isotope techniques in water resources development and management
- Dates
- 10-14 May 1999
- Place
- Vienna (Austria)
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 31009427
- Subject category
- S58: GEOSCIENCES;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- GROUND WATER; ISOTOPE DATING; ISOTOPE RATIO; KRYPTON 81; MASS SPECTROMETERS; MSU CYCLOTRONS
- Descriptors DEC
- ACCELERATORS; AGE ESTIMATION; BETA DECAY RADIOISOTOPES; CYCLIC ACCELERATORS; CYCLOTRONS; ELECTRON CAPTURE RADIOISOTOPES; EVEN-ODD NUCLEI; HYDROGEN COMPOUNDS; INTERMEDIATE MASS NUCLEI; ISOCHRONOUS CYCLOTRONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; KRYPTON ISOTOPES; MEASURING INSTRUMENTS; NUCLEI; OXYGEN COMPOUNDS; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SPECTROMETERS; WATER; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- Data in PDF format; Acrobat Reader for Windows 3.x, 95, 98, NT and Macintosh included. 5 refs, 4 figs
- Secondary number(s)
- IAEA-CSP--2/C; IAEA-SM--361