Physics – Nuclear Physics
Scientific paper
Oct 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..dnp.6l001d&link_type=abstract
American Physical Society, Division of Nuclear Physics Fall Meeting, October 30 - November 1, 2003, Tucson, Arizona, MEETING ID:
Physics
Nuclear Physics
Scientific paper
In this lecture, an application of nuclear physics which has come to be known as Accelerator Mass Spectrometry will described. In this application, a small tandem electrostatic accelerator is incorporated as one component of a conventional mass spectrometer. Ions to be analyzed then have kinetic energies of millions of electron volts instead of the usual thousands of electron volts. For ions with these high energies, nuclear physics techniques can be used to eliminate sources of background. As a result, trace elements present in a matrix at a level of a few parts in one thousand trillion can be detected. Because of this sensitivity, accelerator mass spectrometry has proved to be useful in a wide variety of disciplines. The operation of the instrument at the University of Arizona will be described, and its applications to studies of the age of artistic artifacts, to the populating of the Americas, to the study of Martian meteorites, and more, will be discussed.
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