At least one-time protection of uranium with various critical masses by uranium-232 for 100 years.

 
 
  Part of: Kulikov GG, Shmelev AN, Apse VA, Kulikov EG (2022) Comprehensive analysis of proliferation protection of uranium due to the presence of 232U and its decay products. Nuclear Energy and Technology 8(4): 253-260. https://doi.org/10.3897/nucet.8.96564