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Revolutionary Developments in Carbon-14 Dating

Published online by Cambridge University Press:  20 January 2017

L. A. Pavlish
Affiliation:
Department of Anthropology and Department of Physics, Archaeometry Laboratory
E. B. Banning
Affiliation:
Department of Near Eastern Studies and Department of Physics, Archaeometry Laboratory, University of Toronto, Toronto, Ontario, Canada M5S 1A7

Abstract

The conventional carbon-14 method relies on the accurate measurement of a beta-ray decay rate to determine the age of the sample. The new method instead uses an ultrasensitive mass spectrometer to count the individual carbon-14 atoms in a sample. The advantages of this approach are many. The problem of cosmic ray background does not arise. Shorter counting times on samples 1,000 times smaller will be possible. One result will be the production of more accurate age determinations. The new method will permit a great expansion in the types of archaeological materials that can be dated because only milligram samples will be required. Research on the design of a dedicated carbon-14 atom counting machine is presently in progress.

Information

Type
Reports
Copyright
Copyright © Society for American Archaeology 1980

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