New Developments at the NSF-Arizona AMS Laboratory

Monday, 5 September 2005

This presentation is part of: Poster Session I

New Developments at the NSF-Arizona AMS Laboratory

A. J. Timothy Jull, J. Warren Beck, Dana L. Biddulph, George S. Burr, Douglas J. Donahue, Gregory W. L. Hodgins, Lanny R. McHargue, Nathaniel A. Lifton, Arthur L. Hatheway, Lori R. Hewitt, John Gann, Todd E. Lange, and Alexander Leonard. NSF Arizona AMS Laboratory, Univ of Arizona, 1118 East Fourth St, Tucson, AZ 85721

At the Arizona laboratory, we have embarked on a number of improvements to our operations. A large project was a thorough overhaul of our "original" machine, a General Ionex Tandetron, including installation of new HVEE accelerator tubes. Our second machine, a 3MV NEC Pelletron AMS has had a high level of operational time over the last 2 years. We have begun a program in ¹²⁹I measurements and we have also added ²⁶Al capability, in addition to long-standing programs in ¹⁴C and ¹⁰Be. We have also begun to plan automation of some repetitive chemical laboratory tasks. We will report on some interesting studies in ¹⁴C dating of corals, speleothems and bones, new ²⁶Al measurements, ¹²⁹I studies, and new records of ¹⁰Be from marine sediments and extraterrestrial materials. Measurements of "in-situ" cosmogenic ¹⁴C continue and we are now associated with the large CRONUS program to try to improve our understanding of terrestrial cosmogenic-nuclide production rates.

Web Page: www.physics.arizona.edu/ams

See more of Poster Session I
See more of The 10th International Conference on Accelerator Mass Spectrometry (September 5-10, 2005)