The U.S. Department of Energy’s (DOE) National Nuclear Security Administration (NNSA) will host a Molybdenum-99 (Mo-99) International Symposium in Vienna, Austria, at the International Atomic Energy Agency (IAEA) from October 5-7, 2022. Argonne National Laboratory is organizing the Symposium in cooperation with the IAEA. Virtual participation in the Symposium will also be available for registrants.


NNSA invites interested stakeholders to register for this event and to submit an abstract for oral or poster presentation at the Symposium in one of the following Mo-99 related topical areas:

  • International HEU Minimization and Conversion of Medical Isotope Production to Non-HEU Methods
  • Establishing New Mo-99 Supplies
  • Regulatory Challenges and Lessons Learned
  • Full Cost Recovery Challenges and Lessons Learned
  • The End-User Perspective (Healthcare Organizations and Radiopharmacies)
  • The Clinical Perspective of Mo-99 and Tc-99m-based Radiopharmaceuticals
  • Mo-99 Target Residue Waste Options
  • Bringing Mo-99 to Market: Lessons Learned
  • Security of Supply
  • Fission and Neutron Capture Production Technology Advances
  • Accelerator Production Technology Advances
  • Emerging Production Technologies and Capabilities

For additional information, including instructions and deadlines for registration and abstract submission, use the links on the left-hand side of this page.

Important Deadlines


August 19, 2022 Submit Abstract & Publication Release
September 15, 2022 IAEA Travel Grant Application Deadline
September 19, 2022 Submit Presentation/Poster
September 23, 2022 Complete Registration
September 30, 2022 Submit Full Paper
View forms and deadlines

We intend to host this event in person as a hybrid event. However, our plans are contingent on the federal and local COVID-19 controls and guidance in place on the date of the event. If the event is unable to take place in person, programming will shift to a fully virtual format.


For further information and questions about the 2022 Mo-99 International Symposium please contact the Organizing Committee.

2022 Mo-99 International Symposium

Mo-99 2022 News:

July 26, 2022  Mo-99 2022 International Symposium Announced: View Announcement »


For more information:

Technical Program Questions:

John Holland
Argonne National Laboratory

Administrative Questions:
Mrs. Karen Grudzinski
Argonne National Laboratory
9700 South Cass Avenue, Building 208
Lemont, Illinois 60439-4815, U.S.A.
Phone: +1 (630) 252-1671
Fax: +1 (630) 252-5161


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HOST: NNSA logo ORGANIZER: Argonne logo