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Technical Meeting on the Management of Irradiated Uranium Waste from Molybdenum-99 Production, using Low Enriched Uranium Targets

2 – 4 Sep 2020
Vienna, Austria
Event code: EVT1907215

Over the last decade, producers of Mo-99 around the world have been converting their production processes from high enriched uranium (HEU) to low enriched uranium (LEU) based technologies. Only a few of the major producers have not yet converted their processes from HEU, though their conversion efforts are underway and are expected to conclude in the coming years. With conversion from HEU to LEU based processes comes a near fivefold increase in the overall quantity of uranium processed and eventually sent to waste. While these wastes are similar in some ways to irradiated research reactor fuel, they are a separate waste form which may require tailored solutions

As part of the IAEA's continuing involvement to address the management of irradiated uranium inventories coming from Mo-99 production processes, IAEA is organizing this Technical Meeting on the Management of Irradiated Uranium Waste from Molybdenum-99 Production Using Low Enriched Uranium Targets at its Headquarters in Vienna from 2 to 4 September 2020.

The purpose of the event is to share tools, best practices and lessons learned from the management of irradiated uranium inventories in order to be able to apply this knowledge to growing low enriched uranium waste inventories resulting from molybdnenum-99 production.

The following will be addressed and discussed during the event:

  • Uranium management strategies:
    • Direct disposal
    • Recycle and recovery
    • Long term storage
  • Technical considerations
  • Regulatory and political considerations
  • Economic considerations


A limited number of grants are available to support the attendance of selected participants provided that, in the IAEA’s view, the participant will make an important contribution to the event, with priority given to participants from developing countries. There is no registration fee.

Deadline for submitting applications: 24 July 2020


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