The Theory of Isotope Separation as Applied to the Large Scale Production of U235

The Theory of Isotope Separation as Applied to the Large Scale Production of U235
Author: Karl Cohen
Publisher:
Total Pages: 184
Release: 2015-03-07
Genre: Science
ISBN: 9784871877060

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.

Separation of Isotopes of Biogenic Elements in Two-phase Systems

Separation of Isotopes of Biogenic Elements in Two-phase Systems
Author: Boris Mikhailovich Andreev
Publisher: Elsevier
Total Pages: 317
Release: 2006-12-01
Genre: Science
ISBN: 0080468098

Separation of Isotopes of Biogenic Elements provides a detailed overview of this area of research covering all aspects from the value of isotope effects to their practical use (equilibrium single-stage isotope effect - kinetics and mass transfer – multiplication of the single-stage isotope separation factor - technological peculiarity of processes) with the purpose of extraction from the natural mixture of the enriched and highly concentrated isotopes. In contrast to traditional books on the theory of isotope separation, the theoretical part of the book describes separation in two-phase processes in counter-flow columns. The experimental part of the book presents systematic analysis of specialists in the field of isotope separation in counter-flow columns. This book will be of interest to scientists, engineers and technical workers engaged in isotope separation processes and isotope application in nuclear physics, medicine, agro-chemistry, biology and other areas. This book may also be used in teaching theory and practical aspects in courses on physical chemistry and Isotope separation of light elements by physicochemical methods.* summarises current state of isotope research, especially biogenic elements* covering all aspects from the value of isotope effects to their practical use* of interest to scientists, engineers and technical workers engaged in isotope separation processes and isotope application

Atomic Energy for Military Purposes; the Official Report on the Development of the Atomic Bomb Under the Auspices of the United States Government, 194

Atomic Energy for Military Purposes; the Official Report on the Development of the Atomic Bomb Under the Auspices of the United States Government, 194
Author: Henry De Wolf Smyth
Publisher: Legare Street Press
Total Pages: 0
Release: 2022-10-26
Genre: History
ISBN: 9781015421622

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Handbook of Nuclear Chemistry

Handbook of Nuclear Chemistry
Author: Attila Vértes
Publisher: Springer Science & Business Media
Total Pages: 422
Release: 2003
Genre: Medical
ISBN: 9781402013058

Impressive in its overall size and scope, this five-volume reference work provides researchers with the tools to push them into the forefront of the latest research. The Handbook covers all of the chemical aspects of nuclear science starting from the physical basics and including such diverse areas as the chemistry of transactinides and exotic atoms as well as radioactive waste management and radiopharmaceutical chemistry relevant to nuclear medicine. The nuclear methods of the investigation of chemical structure also receive ample space and attention. The international team of authors consists of 77 world-renowned experts - nuclear chemists, radiopharmaceutical chemists and physicists - from Austria, Belgium, Germany, Great Britain, Hungary, Holland, Japan, Russia, Sweden, Switzerland and the United States. The Handbook is an invaluable reference for nuclear scientists, biologists, chemists, physicists, physicians practicing nuclear medicine, graduate students and teachers - virtually all who are involved in the chemical and radiopharmaceutical aspects of nuclear science. The Handbook also provides for further reading through its rich selection of references.

Isotopes for Medicine and the Life Sciences

Isotopes for Medicine and the Life Sciences
Author: Institute of Medicine
Publisher: National Academies Press
Total Pages: 144
Release: 1995-01-27
Genre: Medical
ISBN: 0309176697

Radioactive isotopes and enriched stable isotopes are used widely in medicine, agriculture, industry, and science, where their application allows us to perform many tasks more accurately, more simply, less expensively, and more quickly than would otherwise be possible. Indeed, in many casesâ€"for example, biological tracersâ€"there is no alternative. In a stellar example of "technology transfer" that began before the term was popular, the Department of Energy (DOE) and its predecessors has supported the development and application of isotopes and their transfer to the private sector. The DOE is now at an important crossroads: Isotope production has suffered as support for DOE's laboratories has declined. In response to a DOE request, this book is an intensive examination of isotope production and availability, including the education and training of those who will be needed to sustain the flow of radioactive and stable materials from their sources to the laboratories and medical care facilities in which they are used. Chapters include an examination of enriched stable isotopes; reactor and accelerator-produced radionuclides; partnerships among industries, national laboratories, and universities; and national isotope policy.

Handbook of Nuclear Chemistry

Handbook of Nuclear Chemistry
Author: Attila Vértes
Publisher: Springer Science & Business Media
Total Pages: 3762
Release: 2010-12-10
Genre: Science
ISBN: 144190719X

This revised and extended 6 volume handbook set is the most comprehensive and voluminous reference work of its kind in the field of nuclear chemistry. The Handbook set covers all of the chemical aspects of nuclear science starting from the physical basics and including such diverse areas as the chemistry of transactinides and exotic atoms as well as radioactive waste management and radiopharmaceutical chemistry relevant to nuclear medicine. The nuclear methods of the investigation of chemical structure also receive ample space and attention. The international team of authors consists of scores of world-renowned experts - nuclear chemists, radiopharmaceutical chemists and physicists - from Europe, USA, and Asia. The Handbook set is an invaluable reference for nuclear scientists, biologists, chemists, physicists, physicians practicing nuclear medicine, graduate students and teachers - virtually all who are involved in the chemical and radiopharmaceutical aspects of nuclear science. The Handbook set also provides further reading via the rich selection of references.

The Euroschool Lectures on Physics With Exotic Beams, Vol. II

The Euroschool Lectures on Physics With Exotic Beams, Vol. II
Author: J.S. Al-Khalili
Publisher: Springer
Total Pages: 249
Release: 2006-08-29
Genre: Science
ISBN: 3540337873

This is the second volume in a series of lecture notes based on the highly s- cessful Euro Summer School on Exotic Beams that has been running yearly since 1993 (apart from 1999) and is planned to continue to do so. It is the aim of the School and these lecture notes to provide an introduction to - dioactive ion beam (RIB) physics at the level of graduate students and young postdocs starting out in the ?eld. Each volume will contain lectures covering a range of topics from nuclear theory to experiment to applications. Our understanding of atomic nuclei has undergone a major re-orientation over the past two decades and seen the emergence of an exciting ?eld of research: the study of exotic nuclei. The availability of energetic beams of short-lived nuclei, referred to as radioactive ion beams (RIBs), has opened the way to the study of the structure and dynamics of thousands of nuclear species never before observed in the laboratory. In its 2004 report “Persp- tives for Nuclear Physics Research in Europe in the Coming Decade and - yond”, the Nuclear Physics European Collaboration Committee (NuPECC) statesthatthe?eldofRIBphysicsisoneofthemostimportantdirectionsfor the future science programme in Europe. In 2005 it published its “Roadmap for Construction of Nuclear Physics Research Infrastructures in Europe”.

Tritium Isotope Separation

Tritium Isotope Separation
Author: Gheorghe Vasaru
Publisher: CRC Press
Total Pages: 330
Release: 1993-03-25
Genre: Science
ISBN: 9780849343223

Tritium Isotope Separation is the first book to present a current overview of the separation processes for tritium isotopes. The book consists of two parts. Part I explores the sources of tritium and the evolution of the world's tritium inventory. Part II describes the processes and plants used for tritium isotope separation, enrichment methods for tritium for analytical purposes, methods for recovering and enriching tritium from nuclear and thermonuclear plants, and the laser method. The book in general emphasizes applications, performance, characterization, laboratory experiments, pilot plants and industrial production, reliability, and cost. An author index, subject index, list of acronyms and abbreviations, and glossary have been included to make the book an even more valuable reference. Tritium Isotope Separation will be an essential book for all nuclear energy engineers, nuclear physicists, and others working with various aspects of isotope separation science.

Tritium: Fuel of Fusion Reactors

Tritium: Fuel of Fusion Reactors
Author: Tetsuo Tanabe
Publisher: Springer
Total Pages: 365
Release: 2016-12-05
Genre: Technology & Engineering
ISBN: 4431564608

This book focuses on tritium as a fuel for fusion reactors and a next-generation energy source. Following an introduction of tritium as a hydrogen radioisotope, important issues involved in establishing safe and economical tritium fuel cycles including breeding for a fusion reactor are summarized; these include the handling of large amounts of tritium: confinement, leakage, contamination, permeation, regulation and tritium accountancy, and impacts on surrounding areas. Targeting and encouraging the students and technicians who will design and operate fusion reactors in the near future, this book offers a valuable resource on tritium science and technology.

Laser Isotope Separation in Atomic Vapor

Laser Isotope Separation in Atomic Vapor
Author: P. A. Bokhan
Publisher: Wiley-VCH
Total Pages: 208
Release: 2006
Genre: Medical
ISBN:

Written by leading Russian scientists, including Nobel laureate, A.M. Prokhorov (1916-2002), this first book on this important technology allows an understanding of the physics of atomic vapor laser isotope separation and new photochemical methods of laser isotope separation. One entire chapter is devoted to chemical reactions of atoms in excited states, while further chapters deal with the separation of isotopes by one photon isotope-selective and coherent isotope-selective two photon excitation of atoms. A final chapter looks at the prospects for the industrial production of isotope products by laser isotope separation. The whole is rounded off by six appendices. - Laser isotope separation in atomic vapors - Laser technique for isotope separation - Chemical reactions of atoms in excited states - Isotope separation by single-photon isotope-selective excitation - Coherent isotope-selective two-photon excitation of atoms - Prospects for industrial isotope production The Authors Petr A. Bokhan Institute of Semiconductor Physics, Russian Academy of Sciences, Novosibirsk, Russia Vladimir V. Buchanov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, Russia Nikolai V. Fateev Institute of Semiconductor Physics, Russian Academy of Sciences, Novosibirsk, Russia Mikhail M. Kalugin Scanning Laser Company, St. Petersburg, Russia Mishik A. Kazaryan P.N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia Alexander M. Prokhorov (1916-2002) was awarded - jointly with Nikolay G. Basov of the Soviet Union and Charles H. Townes of the United States - the Nobel Prize for Physics in 1964 for fundamental research in quantum electronics. In 1954, Prokhorov became head of the Oscillation Laboratory at the P.N. Lebedev Physical Institute and subsequently professor at the Moscow State University. In 1983 he founded the General Physics Institute of the Russian Academy of Sciences and has been recipient of numerous national and international honours and awards. After his death the General Physics Institute of the Russian Academy of Sciences was renamed 'A. M. Prokhorov General Physics Institute'. Dmitrij E. Zakrevskii Institute of Semiconductor Physics, Russian Academy of Sciences, Novosibirsk, Russia Further titles: Brown, Thomas G., Creath, Katherine, Kogelnik, Herwig, Kriss, Michael A., Schmit, Joanna, Weber, Marvin J. (eds.) The Optics Encyclopedia Basic Foundations and Practical Applications. 5 Volumes. 2003 ISBN 3-527-40320-5