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Efforts to Secure Medical Isotopes Produced Without HEU

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Highly Enriched Uranium for Medical Isotopes

The Department of Energy’s National Nuclear Security Administration (DOE/NNSA) is working to develop a reliable and sustainable means of producing the life-saving medical isotope molybdenum-99 (Mo-99) without using highly enriched uranium (HEU).

This program is part of Administration’s effort to develop and implement technologies to minimize and, to the extent possible, eliminate the civilian use of HEU, including in research reactors and isotope production facilities worldwide.

As the United States currently imports the majority of its Mo-99 supply from subsidized, aging facilities abroad, most of which is produced with HEU, DOE/NNSA’s effort is aimed to ensure that this important medical isotope is readily available to meet patient needs, and produced in accordance with U.S. nuclear nonproliferation policy.

Since 2009, DOE/NNSA has partnered with U.S. commercial entities to accelerate the development of a diverse set of non-HEU technologies to produce Mo-99 in the United States. DOE/NNSA’s current commercial partners include:

Other organizations in the United States are also working to develop the ability to produce non-HEU-based Mo-99.  While independent of DOE/NNSA’s Mo-99 Program, these projects are complementary to domestic and international efforts to ensure a reliable supply of Mo-99 produced without HEU. These groups include:

DOE/NNSA makes technical expertise available, on a non-proprietary basis, to existing and potential Mo-99 producers to assist with converting their Mo-99 production processes to use LEU targets, and to develop non-HEU-based Mo-99 production technologies.

Source: NNSA fact sheet, adapted.

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