- Brian Ticknor, Chemical Sciences Division
The International Atomic Energy Agency (IAEA) uses environmental sampling to support verification of declared activities or detection of undeclared activities in nuclear facilities all over the world. As part of on-site inspections, Inspectors use cotton swipes to collect trace amounts of nuclear material that are sent back to the IAEA for analysis by the Network of Analytical Laboratories (NWAL) using a variety of highly sensitivity analytical techniques. ORNL coordinates the NWAL program for the Department of Energy, and the Nuclear Analytical Chemistry and Isotopics Laboratories Group at ORNL is a qualified IAEA NWAL member for the Bulk Analysis of Environmental Samples for Safeguards. In this role, the group uses gamma spectroscopy, high-precision mass spectrometry, and neutron activation analysis to analyze environmental swipe samples. In this talk, environmental sampling to support IAEA safeguards, and the role of the DOE NWAL, will be explained. Then, the specific analytical techniques employed at ORNL and other NWAL member laboratories for the measurement of trace levels of uranium and plutonium collected on environmental swipe samples during IAEA inspections will be discussed.
Refreshments will be served at 9:30.