Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 13 October 1978:
Vol. 202. no. 4364, pp. 215 - 217
DOI: 10.1126/science.202.4364.215
Prev | Table of Contents | Next

Articles

Beryllium-10 Mass Spectrometry with a Cyclotron

G. M. RAISBECK 1, F. YIOU 1, M. FRUNEAU 2, and J. M. LOISEAUX 2

1 Laboratoire René Bernas du Centre de Spectromérie Nucléaire et de Spectrométrie de Masse, 91406 Orsay, France
2 Institut des Sciences Nucléaires, 53 Avenue des Martyres, 38026 Grenoble, France

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 x 106 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.

Submitted on March 29, 1978
Revised on June 14, 1978


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Accelerator Mass Spectrometry for Measurement of Long-Lived Radioisotopes.
D. Elmore, D. ELMORE, and F. M. PHILLIPS (1987)
Science 236, 543-550
   Abstract »    PDF »
Cosmic-Ray Record in Solar System Matter.
R. C. Reedy, R. C. Reedy, J. R. Arnold, and D. Lal (1983)
Science 219, 127-135
   Abstract »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)