plutonium 239


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Related to plutonium 239: Plutonium 240, Plutonium 238
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Noun1.plutonium 239 - a highly fissionable isotope of plutonium that is used in atomic weapons and as a reactor fuel; produced by irradiating uranium 238 with slow electrons
atomic number 94, plutonium, Pu - a solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239
weapon-grade plutonium, weapons plutonium - plutonium 239 that is recovered when nuclear weapons are disassembled; it is stored in plutonium pits
References in periodicals archive ?
When the atoms of Uranium 235 in its fuel core were split, escaping neutrons would bond with an external layer of raw Uranium 238, which would then transform it into Plutonium 239.
Plutonium 239, das kunstlich hergestellte hochgiftige Element, erlaubt die Produktion von Atomwaffen viel einfacher als Uran.
But since Parasite was pulverized into dust after he absorbed the Plutonium 239 that Kara collected from a nearby power plant, it's unclear how exactly the baddie will return to the show.
For example the half life - a measure of the rate of natural decay of radioactive materials - of the waste product Plutonium 239 is 24,000 years, and that of Neptunium 237 is two million years.
For example the half life -- a measure of the rate of natural decay of radioactive materials -- of the waste product Plutonium 239 is 24,000 years, and that of Neptunium 237 is two million years.
Plutonium 239 is in fact a waste product of conventional uranium power plants.