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Author: Tōkyō Kōgyō Daigaku. Genshiro Kōgaku Kenkyūjo
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Tōkyō Kōgyō Daigaku. Genshiro Kōgaku Kenkyūjo
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Yasuhiko Fujii
Publisher:
ISBN:
Category :
Languages : en
Pages : 506
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Author: Yasuhiko Fujii
Publisher:
ISBN:
Category : Isotope separation
Languages : en
Pages : 506
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Author: Allan S. Krass
Publisher: Routledge
ISBN: 100020054X
Category : Political Science
Languages : en
Pages : 325
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Originally published in 1983, this book presents both the technical and political information necessary to evaluate the emerging threat to world security posed by recent advances in uranium enrichment technology. Uranium enrichment has played a relatively quiet but important role in the history of efforts by a number of nations to acquire nuclear weapons and by a number of others to prevent the proliferation of nuclear weapons. For many years the uranium enrichment industry was dominated by a single method, gaseous diffusion, which was technically complex, extremely capital-intensive, and highly inefficient in its use of energy. As long as this remained true, only the richest and most technically advanced nations could afford to pursue the enrichment route to weapon acquisition. But during the 1970s this situation changed dramatically. Several new and far more accessible enrichment techniques were developed, stimulated largely by the anticipation of a rapidly growing demand for enrichment services by the world-wide nuclear power industry. This proliferation of new techniques, coupled with the subsequent contraction of the commercial market for enriched uranium, has created a situation in which uranium enrichment technology might well become the most important contributor to further nuclear weapon proliferation. Some of the issues addressed in this book are: A technical analysis of the most important enrichment techniques in a form that is relevant to analysis of proliferation risks; A detailed projection of the world demand for uranium enrichment services; A summary and critique of present institutional non-proliferation arrangements in the world enrichment industry, and An identification of the states most likely to pursue the enrichment route to acquisition of nuclear weapons.
Author: G. H. Clewett
Publisher:
ISBN:
Category : Isotope separation
Languages : en
Pages : 28
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Author: Erwin Willy Becker
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 344
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With contributions by numerous experts
Author: Karl Cohen
Publisher:
ISBN: 9784871877060
Category : Science
Languages : en
Pages : 184
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Isotope separation is the process of concentrating specific isotopes of a chemical element by removing other isotopes. The use of the nuclides produced is various. The largest variety is used in research (e.g. in chemistry where atoms of "marker" nuclide are used to figure out reaction mechanisms). By tonnage, separating natural uranium into enriched uranium and depleted uranium is the largest application. In the following text, mainly the uranium enrichment is considered. This process is a crucial one in the manufacture of uranium fuel for nuclear power stations, and is also required for the creation of uranium based nuclear weapons. Plutonium-based weapons use plutonium produced in a nuclear reactor, which must be operated in such a way as to produce plutonium already of suitable isotopic mix or grade. While different chemical elements can be purified through chemical processes, isotopes of the same element have nearly identical chemical properties, which makes this type of separation impractical, except for separation of deuterium. There are three types of isotope separation techniques: Those based directly on the atomic weight of the isotope. Those based on the small differences in chemical reaction rates produced by different atomic weights. Those based on properties not directly connected to atomic weight, such as nuclear resonances. The third type of separation is still experimental; practical separation techniques all depend in some way on the atomic mass. It is therefore generally easier to separate isotopes with a larger relative mass difference. For example deuterium has twice the mass of ordinary (light) hydrogen and it is generally easier to purify it than to separate uranium-235 from the more common uranium-238. On the other extreme, separation of fissile plutonium-239 from the common impurity plutonium-240, while desirable in that it would allow the creation of gun-type nuclear weapons from plutonium, is generally agreed to be impractical.
Author: British Nuclear Energy Society
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 272
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Author: J. Robert Merriman
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 116
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Author: Donald Geoffrey Avery
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 104
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