Uranium-233
Isotope
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Uranium-233 is a fissile isotope of uranium that is bred from thorium-232 as part of the thorium fuel cycle. Uranium-233 was investigated for use in nuclear weapons and as a reactor fuel. It has been used successfully in experimental nuclear... Wikipedia
Protons: 92
Half-life (t1/2): 160,000 years
Parent isotopes: 237Pu (α); 233Np (β+); 233Pa (β−)