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Isotope separation - Alternatives | | Isotope separation - Alternatives: Encyclopedia II - Isotope separation - Alternatives | | The only alternative to isotope separation is to manufacture the required isotope in its pure form. This may be done by irradiation of a suitable target, but care is needed in target selection and other factors to ensure that only the required isotope of the element of interest is produced. Isotopes of other elements are not so great a problem as they can be removed by chemical means.
This is particularly relevant in the preparation of high-grade plutonium-239 for use in weapons and in military propulsion reactors. It is not in practi ...
See also:Isotope separation, Isotope separation - Enrichment cascades, Isotope separation - Commercial materials, Isotope separation - Alternatives, Isotope separation - Techniques, Isotope separation - Diffusion, Isotope separation - Centripetal effect, Isotope separation - Electromagnetic, Isotope separation - Laser, Isotope separation - Chemical methods, Isotope separation - The SWU separative work unit | | | Isotope separation, Isotope separation - Alternatives, Isotope separation - Centripetal effect, Isotope separation - Chemical methods, Isotope separation - Commercial materials, Isotope separation - Diffusion, Isotope separation - Electromagnetic, Isotope separation - Enrichment cascades, Isotope separation - Laser, Isotope separation - Techniques, Isotope separation - The SWU separative work unit | | |
| | | Isotope separation: Encyclopedia II - Isotope separation - Alternatives
Isotope separation - Alternatives
The only alternative to isotope separation is to manufacture the required isotope in its pure form. This may be done by irradiation of a suitable target, but care is needed in target selection and other factors to ensure that only the required isotope of the element of interest is produced. Isotopes of other elements are not so great a problem as they can be removed by chemical means.
This is particularly relevant in the preparation of high-grade plutonium-239 for use in weapons and in military propulsion reactors. It is not in practice possible to separate Pu-239 from Pu-240 or Pu-241. Fissile Pu-239 is produced following neutron capture by uranium-238, but further neutron capture will produce non-fissile Pu-240 and worse, then Pu-241 which is a fairly strong neutron emitter. Therefore, the uranium targets used to produce military plutonium must be irradiated for only a short time, to minimise the production of these unwanted isotopes. Conversely salting plutonium with Pu-241 renders it unsuitable for nuclear weapons.
Other related archivesAVLIS, Centripetal effect, Enriched uranium, Ernest O. Lawrence, Fissile, Gas centrifuges, Girdler sulfide process, Hydrogen, IR Multiple Photon Dissociation, Lithium, MLIS, Manhattan Project, Oak Ridge, Oak Ridge Laboratories, Plutonium, Rjukan, South Africa, U-235, United States, University of California, Berkeley, Uranium, Vortex tubes, Zippe-type centrifuge, atomic weight, calutrons, cascade, chemical element, chemical processes, depleted uranium, deuterium, diffusion, electric field, enriched uranium, evaporate, fluorine, gaseous diffusion, heavy water, hydrogen, hyperfine, isotopes, isotopic tracers, kinetic isotopic effect, laser, magnetic field, mass spectrometry, natural uranium, nuclear proliferation, nuclear reactor, nuclear weapon, nuclear weapons, plutonium, reaction rates, thermonuclear weapons, tritium, uranium hexafluoride
 Adapted from the Wikipedia article "Alternatives", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
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