uranium 235

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Related to Uranium-235: Uranium-238, Plutonium-239

uranium 235

The isotope of uranium used to produce a fission chain reaction in atomic weapons by establishing a critical mass.
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Uranium hexafluoride is the feedstock used to separate uranium-235 from natural uranium.
In this facility, Iran is using first-generation centrifuges, called IR-1 centrifuges, to produce LEU containing up to 5% uranium-235. Iran has installed about 15,400 of these centrifuges, approximately 8,800 of which are enriching uranium.
To begin with, in order to explode, nuclear material must be enriched to more than 95 percent uranium-235, and fuel is only around 3 percent uranium-235.
The uranium-235 isotope, which contains 92 protons and 143 neutrons, is inherently unstable, tending to split, or fission, into lighter elements.
At most of the reactors at Fukushima Daiichi, atoms of an element called uranium-235 are the ones that break apart.
The 62-page GAO investigation and correspondence, according to Smith, "confirms the United States refus(al) to mount credible investigations that would enable warranted prosecutions of the perpetrators." To cite but one example, the report reveals that the "opaque" relationship started when the Nuclear Materials and Equipment Corporation (NUMEC), established in 1957, had then received "more than 22 tons of taxpayer-funded, highly enriched Uranium-235, the key material used for manufacturing nuclear weapons." It turned out that David Lowenthal, then head of Israeli intelligence, had helped in launching NUMEC.
The uranium-235 would have jump-started Israeli weapons development because it can sustain the fission chain reaction of a nuclear explosion without further concentration.
Almost all of the thousands of centrifuges set up produce uranium that is made up of 3.5 percent uranium-235, the isotope needed to produce a nuclear explosion.
London, Feb 11 (ANI): Iran has announced that it will produce uranium enriched to contain 20 per cent of the fissile isotope uranium-235, which is to refuel a reactor in Tehran that makes medical isotopes, after talks aimed at acquiring the fuel abroad stalled.
The uranium-235, which can be used for nuclear weapons, was discovered during the repackaging of waste at the nuclear plant in Caithness.
Begin with a dash of plutonium sprinkle some uranium-235 add a trigger mechanism and a rocket booster and voil&225; a nuclear deterrence program!
In either the generation of electricity or the creation of a nuclear weapon, natural uranium ore must be refined and enriched to increase the number of fissile (and rare) uranium-235 isotopes, or plutonium must be created by bombarding common uranium-238 isotopes with neutrons and then separating that plutonium from fission waste products.