PRIME lab AMS performance, upgrades and research applications

Details PRIME lab AMS performance, upgrades and research applications PRIME lab AMS performance, upgrades and research applications

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000nimpb.172..112s&link_type=abstract

Nuclear Instruments and Methods in Physics Research Section B, Volume 172, Issue 1-4, p. 112-123.

Physics

27

Scientific paper

The Purdue Rare Isotope Measurement Laboratory (PRIME Lab) is a dedicated research and service facility for AMS that provides the scientific community with timely, reliable and high quality chemical processing (~600 samples/year) and AMS measurements (~3000 samples/year) of 10Be, 14C, 26Al, 36Cl, 41Ca and 129I. The AMS system is based on an upgraded FN (7 MV) tandem accelerator that has recently been modified to improve performance. The precision is 1% for 14C and it is 3-5% for the other nuclides for radioisotope/stable isotope ratios at the 10-12 levels. System background for 10Be, 14C, 26Al, 36Cl and 41Ca is 1-10×10-15 while for 129I the natural abundance limits it to 20×10-15. Research is being carried out in Earth, planetary, and biomedical sciences. Geoscience applications include determination of exposure ages of glacial moraines, volcanic eruptions, river terraces, and fault scarps. Burial histories of sand are being determined to decipher the timing of human expansion and climatic history. Environmental applications are tracing the release of radioactivity from nuclear fuel reprocessing plants, water tracing, and neutron dosimetry. The applications using meteoric nuclides are oil field brines, sediment subduction, radiocarbon dating, and groundwater 36Cl mapping. Radionuclide concentrations are also determined in meteorites and tektites for deciphering space and terrestrial exposure histories.

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