Uranium-232

Uranium-232

Infobox isotope
background = #fc6
text_color =
isotope_name = Uranium-232
isotope_filename =
alternate_names =
mass_number =232
symbol =U
num_neutrons =
num_protons =
abundance =
halflife = 68.9 years
error_halflife =
decay_product = Thorium-228
decay_mass = 228
decay_symbol =Th
parent = Plutonium-236
parent_mass = 236
parent_symbol =Pu
parent_decay = a
parent2 = Neptunium-232
parent2_mass = 232
parent2_symbol = Np
parent2_decay = b+
parent3 = Protactinium-232
parent3_mass = 232
parent3_symbol = Pa
parent3_decay = b-
mass =
spin =
excess_energy =
error1 =
binding_energy =
error2 =
decay_mode1 =
decay_energy1 =
decay_mode2 =
decay_energy2 =
decay_mode3 =
decay_energy3 =
decay_mode4 =
decay_energy4 =

Uranium 232 (92232uranium) is an isotope of Uranium. It has a half life of 68.9 years and is a side product in the thorium cycle. It has been cited as an obstacle to nuclear proliferation using 233U as the fissile material, because the intense gamma radiation of 232U's decay products makes the 233U contaminated with it more difficult to handle.

Unusually for an isotope with even mass number, U-232 has a significant neutron absorption cross section for fission (thermal neutrons 75 barns, resonance integral 380) as well as for neutron capture (thermal 73, resonance integral 280).

Isotope|element=Uranium
lighter=Uranium-231
heavier=Uranium-233
before=Plutonium-236 (α)
Neptunium-232 (β+)
Protactinium-232 "'(β-)
after=Thorium-228 "'(α)


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