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Last Updated: June 13, 2026

Alpha-emitting radionuclides having an alpha half-life of 10 days or greater but less than 200 years, in the following forms: a. Elemental; b. Compounds having a total alpha activity of 37 GBq per kg or greater; c. Mixtures having a total alpha activity of 37 GBq per kg or greater; d. Products or devices containing any of the foregoing. 2.D. SOFTWARE None

Category

LIST OF NUCLEAR-RELATED DUAL-USE EQUIPMENT, MATERIALS, SOFTWARE, AND RELATED TECHNOLOGY

Subcategory

2.C. Materials

Prohibited Supply To

IR

Authority

GB

Document

INFCIRC/254/Rev.8/Part 2

Note

Note: Item 2.C.19. does not control a product or device containing less than 3.7 GBq of alpha activity.

Program information

Program information

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