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Nonproliferation

ORNL researchers employ extraction probe for rapid safeguards analysis

October 19, 2021, 7:29AMNuclear News
ORNL’s Benjamin Manard places a swipe on the extraction stage of Advion’s Plate Express, a microextraction tool that has been paired with a mass spectrometer. (Photo: Carlos Jones/ORNL, DOE)

International nuclear safeguards verification relies on a precise count of isotope particles collected on swipes during International Atomic Energy Agency inspections of nuclear facilities and isolated through a series of lengthy chemical separations that can take about 30 days to complete. On October 15, Oak Ridge National Laboratory—a member of the IAEA’s Network of Analytical Laboratories (NWAL)—announced that analytical chemists at the site have developed a faster way to measure isotopic ratios of uranium and plutonium collected on swipes, which could help IAEA analysts detect the presence of undeclared nuclear activities or material.

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