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Protactinium-233 occurs as a result of the decay of thorium-233 as part of the chain of events necessary to produce uranium-233 by neutron irradiation of thorium-232. It is an undesired intermediate product in thorium-based nuclear reactors , and is therefore removed from the active zone of the reactor during the breeding process.
231 Pa makes up nearly all natural protactinium. The primary decay mode for isotopes of Pa lighter than (and including) the most stable isotope 231 Pa is alpha decay, except for 228 Pa to 230 Pa, which primarily decay by electron capture to isotopes of thorium. The primary mode for the heavier isotopes is beta minus (β −) decay.
233 Th is an isotope of thorium that decays into protactinium-233 through beta decay. It has a half-life of 21.83 minutes. [ 1 ] Traces occur in nature as the result of natural neutron activation of 232 Th. [ 58 ]
Pa and 233 U. [17] On a closed cycle, 233 U and 231 Pa can be reprocessed. 231 Pa is also considered an excellent burnable poison absorber in light water reactors. [23] Another challenge associated with the thorium fuel cycle is the comparatively long interval over which 232 Th breeds to 233 U. The half-life of 233 Pa
Uranium-232 (232 U) is an isotope of uranium.It has a half-life of around 69 years and is a side product in the thorium cycle.It has been cited as an obstacle to nuclear proliferation using 233 U as the fissile material, because the intense gamma radiation emitted by 208 Tl (a daughter of 232 U, produced relatively quickly) makes the 233 U contaminated with it more difficult to handle.
Create account; Log in; Pages for logged out editors learn more. ... Protactinium nitride is a binary inorganic compound of protactinium and nitrogen with the ...
Create account; Log in; Pages for logged out editors learn more. Contributions; ... Protactinium-232; Protactinium-233; Protactinium-234; Protactinium-234m ...
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