Beryllium-10 Mass Spectrometry with a Cyclotron

The Grenoble cyclotron has been used as a mass spectrometer to measure ratios of beryllium-10 to beryllium-9 of 10$^{-8}$, 10$^{-9}$, and 10$^{-10}$ in standardized beryllium oxide samples. Similar measurements can be used to determine cosmogenic beryllium-10 (half-life, 1.5 × 10$^{6}$ years) profil...

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Published inScience (American Association for the Advancement of Science) Vol. 202; no. 4364; pp. 215 - 217
Main Authors Raisbeck, G. M., Yiou, F., Fruneau, M., Loiseaux, J. M.
Format Journal Article
LanguageEnglish
Published United States American Association for the Advancement of Science 13.10.1978
American Association for the Advancement of Science (AAAS)
Subjects
Atoms
Beryllium
Cyclotrons
Half lives
Ion sources
Isotopes
Mass spectrometers
Mass spectroscopy
Nuclear Experiment
Oceans
Physics
Sediments
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Summary:The Grenoble cyclotron has been used as a mass spectrometer to measure ratios of beryllium-10 to beryllium-9 of 10$^{-8}$, 10$^{-9}$, and 10$^{-10}$ in standardized beryllium oxide samples. Similar measurements can be used to determine cosmogenic beryllium-10 (half-life, 1.5 × 10$^{6}$ years) profiles in various geophysical reservoirs such as sea sediments and polar ice. This procedure can be used either to date such samples or to give information about geophysical and astrophysical phenomena that have influenced the beryllium-10 production rate in the past.
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ISSN:0036-8075
1095-9203
DOI:10.1126/science.202.4364.215