The Theory of Isotope Separation as Applied to the Large-scale Production of U235 PDF Download
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Author: Karl P. Cohen
Publisher:
ISBN:
Category :
Languages : en
Pages : 165
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Book Description
Author: Karl P. Cohen
Publisher:
ISBN:
Category :
Languages : en
Pages : 165
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Book Description
Author: Karl Cohen
Publisher:
ISBN:
Category : Nuclear physics
Languages : en
Pages : 0
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Book Description
Author: Karl P. Cohen
Publisher:
ISBN:
Category :
Languages : en
Pages : 165
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Book Description
Author: Karl Cohen
Publisher:
ISBN: 9784871877060
Category : Science
Languages : en
Pages : 184
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Book Description
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:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 84
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Author:
Publisher: Government Printing Office
ISBN: 9780160872884
Category : History
Languages : en
Pages : 684
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Book Description
he U.S. Army played a key role in the formation and administration of the Manhattan Project, the World War II organization which produced the atomic bombs that not only contributed decisively to ending the war with Japan but also opened the way to a new atomic age. The volume begins with a prologue, designed to provide the reader with a brief survey of the history of atomic energy and to explain in layman’s terms certain technical aspects of atomic science essential to an understanding of the major problems occurring in the development of an atomic weapon. Early chapters describe the beginning of the Army’s atomic mission, including the formation of the Manhattan District, the first steps in acquiring the means to produce atomic weapons and the appointment of General Groves. Subsequent topical chapters trace the building and operation of the large-scale process plants for the production of fissionable materials; the administration of a broad range of support activities, such as security and community management; and the fabrication, testing, and combat employment of atomic bombs. A concluding section describes how the Army dealt with the difficult problems arising during its unexpectedly prolonged postwar trusteeship of the project until December 1946, when the newly created civilian agency – the United States Atomic Energy Commission – assumed responsibility for atomic energy matters.
Author: A. De la Garza
Publisher:
ISBN:
Category : Cascades (Fluid dynamics)
Languages : en
Pages : 54
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Author: Allan S. Krass
Publisher: Routledge
ISBN: 100020054X
Category : Political Science
Languages : en
Pages : 325
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Book Description
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: William C. Scotten
Publisher:
ISBN:
Category : Deuterium oxide
Languages : en
Pages : 28
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Book Description
Author: Frank Close
Publisher: Penguin UK
ISBN: 0241309891
Category : History
Languages : en
Pages : 483
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Book Description
'Everything about this story is astounding' Bryan Appleyard, Sunday Times "Trinity" was the codename for the test explosion of the atomic bomb in New Mexico on 16 July 1945. Trinity is now also the extraordinary story of the bomb's metaphorical father, Rudolf Peierls; his intellectual son, the atomic spy, Klaus Fuchs, and the ghosts of the security services in Britain, the USA and USSR. Against the background of pre-war Nazi Germany, the Second World War and the following Cold War, the book traces how Peierls brought Fuchs into his family and his laboratory, only to be betrayed. It describes in unprecedented detail how Fuchs became a spy, his motivations and the information he passed to his Soviet contacts, both in the UK and after he went with Peierls to join the Manhattan Project at Los Alamos in 1944. Frank Close is himself a distinguished nuclear physicist: uniquely, the book explains the science as well as the spying. Fuchs returned to Britain in August 1946 still undetected and became central to the UK's independent effort to develop nuclear weapons. Close describes the febrile atmosphere at Harwell, the nuclear physics laboratory near Oxford, where many of the key players were quartered, and the charged relationships which developed there. He uncovers fresh evidence about the role of the crucial VENONA signals decryptions, and shows how, despite mistakes made by both MI5 and the FBI, the net gradually closed around Fuchs, building an intolerable pressure which finally cracked him. The Soviet Union exploded its first nuclear device in August 1949, far earlier than the US or UK expected. In 1951, the US Congressional Committee on Atomic Espionage concluded, 'Fuchs alone has influenced the safety of more people and accomplished greater damage than any other spy not only in the history of the United States, but in the history of nations'. This book is the most comprehensive account yet published of these events, and of the tragic figure at their centre.
