235U Determination Using In-Beam Delayed Neutron Counting Technique at the NRU Reactor

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (94 download)

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Book Synopsis 235U Determination Using In-Beam Delayed Neutron Counting Technique at the NRU Reactor by :

Download or read book 235U Determination Using In-Beam Delayed Neutron Counting Technique at the NRU Reactor written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes a collaborative effort that saw the Royal Military College of Canada (RMC)'s delayed neutron and gamma counting apparatus transported to Canadian Nuclear Laboratories (CNL) for use in the neutron beamline at the National Research Universal (NRU) reactor. Samples containing mg quantities of fissile material were re-interrogated, and their delayed neutron emissions measured. This collaboration offers significant advantages to previous delayed neutron research at both CNL and RMC. This paper details the determination of 235U content in enriched uranium via the assay of in-beam delayed neutron magnitudes and temporal behavior. 235U mass was determined with an average absolute error of ± 2.7 %. This error is lower than that obtained at RMCC for the assay of 235U content in aqueous solutions (3.6 %) using delayed neutron counting. Delayed neutron counting has been demonstrated to be a rapid, accurate, and precise method for special nuclear material detection and identification.

Determining 235U Enrichment Using a Dual-energy Approach for Delayed Neutron Measurements

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ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.:/5 (15 download)

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Book Synopsis Determining 235U Enrichment Using a Dual-energy Approach for Delayed Neutron Measurements by : Angela Lynn Lousteau

Download or read book Determining 235U Enrichment Using a Dual-energy Approach for Delayed Neutron Measurements written by Angela Lynn Lousteau and published by . This book was released on 2017 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bulk uranium items are often measured using active neutron interrogation systems to take advantage of the relatively high penetrability of neutrons, providing the ability to quickly and accurately measure uranium masses in large, dense configurations. Active techniques employ an external neutron source to induce fission in the uranium and subsequently measure emitted prompt fission or delayed neutrons. Unfortunately, the emitted neutrons from 235U [uranium-235] and 238U [uranium-238] are, for all practical purposes, indistinguishable; therefore, commonly used systems such as the Active Well Coincidence Counter, the 252Cf [californium-252] Shuffler, and other systems based on measurement of prompt or delayed fission neutrons require many representative calibration standards and/or well-known isotopic information to interpret the results (i.e., extract an isotopic mass from the effective fissionable mass), thus limiting these techniques for safeguards applications. The primary objective of this research was to develop and demonstrate a dual-energy neutron interrogation technique using a 252Cf Shuffler measurement chamber for determination of uranium enrichment, thus eliminating the need for a (traditionally separate) gamma isotopic measurement. This new technique exploits the change in fission rates as a function of interrogating neutron energy to independently determine the 235U and 238U content in the measurement item. Dual neutron interrogation energies were achieved by adding a deuterium- tritium (D-T) neutron generator into the measurement chamber of the Oak Ridge National Laboratory 252Cf Shuffler. Results from traditional 252Cf measurements and the new D-T measurements were then used to develop a relationship between uranium enrichment and the ratio of the two delayed neutron count rates. Parameter studies were performed to optimize the measurements for each source using a combination of modeling/simulation and experimental measurements. This dissertation presents the detailed development of this novel dual-energy neutron interrogation technique. The results are promising and with engineering refinements could be deployed for routine assay of certain types of materials.

Automated uranium analysis by delayed-neutron counting

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ISBN 13 : 9788755007093
Total Pages : 38 pages
Book Rating : 4.0/5 (7 download)

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Book Synopsis Automated uranium analysis by delayed-neutron counting by : H. Kunzendorf

Download or read book Automated uranium analysis by delayed-neutron counting written by H. Kunzendorf and published by . This book was released on 1980 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Canada Enters the Nuclear Age

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Publisher : McGill-Queen's Press - MQUP
ISBN 13 : 9780773516014
Total Pages : 466 pages
Book Rating : 4.5/5 (16 download)

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Book Synopsis Canada Enters the Nuclear Age by : Atomic Energy of Canada Limited

Download or read book Canada Enters the Nuclear Age written by Atomic Energy of Canada Limited and published by McGill-Queen's Press - MQUP. This book was released on 1997 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nuclear energy company has overseen the production of its own history, focusing on programs at its laboratories in Chalk River, Ontario, and Whiteshell, Manitoba between 1943 and 1985. The 16 scientists who wrote the narrative discuss the organization and operations of the laboratories, nuclear safety and radiation protection, radioisotopes, basic research, developing the CANDU reactor, managing the radioactive wastes, business development, and revenue generation. Canadian card order number: C97-900188-9. Annotation copyrighted by Book News, Inc., Portland, OR

Determination of Absorbed Dose in Reactors

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ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Determination of Absorbed Dose in Reactors by :

Download or read book Determination of Absorbed Dose in Reactors written by and published by . This book was released on 1971 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Conference on Measurement Technology for Safeguards and Materials Control, November 27-30, 1979, Kiawah Island, Charleston, South Carolina

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ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Conference on Measurement Technology for Safeguards and Materials Control, November 27-30, 1979, Kiawah Island, Charleston, South Carolina by :

Download or read book Conference on Measurement Technology for Safeguards and Materials Control, November 27-30, 1979, Kiawah Island, Charleston, South Carolina written by and published by . This book was released on 1979 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nuclear Physics

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Publisher : National Academies Press
ISBN 13 : 0309260434
Total Pages : 263 pages
Book Rating : 4.3/5 (92 download)

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Book Synopsis Nuclear Physics by : National Research Council

Download or read book Nuclear Physics written by National Research Council and published by National Academies Press. This book was released on 2013-02-25 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: The principal goals of the study were to articulate the scientific rationale and objectives of the field and then to take a long-term strategic view of U.S. nuclear science in the global context for setting future directions for the field. Nuclear Physics: Exploring the Heart of Matter provides a long-term assessment of an outlook for nuclear physics. The first phase of the report articulates the scientific rationale and objectives of the field, while the second phase provides a global context for the field and its long-term priorities and proposes a framework for progress through 2020 and beyond. In the second phase of the study, also developing a framework for progress through 2020 and beyond, the committee carefully considered the balance between universities and government facilities in terms of research and workforce development and the role of international collaborations in leveraging future investments. Nuclear physics today is a diverse field, encompassing research that spans dimensions from a tiny fraction of the volume of the individual particles (neutrons and protons) in the atomic nucleus to the enormous scales of astrophysical objects in the cosmos. Nuclear Physics: Exploring the Heart of Matter explains the research objectives, which include the desire not only to better understand the nature of matter interacting at the nuclear level, but also to describe the state of the universe that existed at the big bang. This report explains how the universe can now be studied in the most advanced colliding-beam accelerators, where strong forces are the dominant interactions, as well as the nature of neutrinos.

Passive Nondestructive Assay of Nuclear Materials

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Publisher :
ISBN 13 : 9780160327247
Total Pages : 700 pages
Book Rating : 4.3/5 (272 download)

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Book Synopsis Passive Nondestructive Assay of Nuclear Materials by : Doug Reilly

Download or read book Passive Nondestructive Assay of Nuclear Materials written by Doug Reilly and published by . This book was released on 1991 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Transactions of the American Nuclear Society

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ISBN 13 :
Total Pages : 1110 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Transactions of the American Nuclear Society by : American Nuclear Society

Download or read book Transactions of the American Nuclear Society written by American Nuclear Society and published by . This book was released on 1979 with total page 1110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Photoneutron Sources

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ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Photoneutron Sources by : B. W. Sargent

Download or read book Photoneutron Sources written by B. W. Sargent and published by . This book was released on 1946 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Utilization Related Design Features of Research Reactors

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ISBN 13 : 9781523129898
Total Pages : 0 pages
Book Rating : 4.1/5 (298 download)

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Book Synopsis Utilization Related Design Features of Research Reactors by : International Atomic Energy Agency

Download or read book Utilization Related Design Features of Research Reactors written by International Atomic Energy Agency and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than 50 years research reactors have played an important role in the development of nuclear science and technology. They have made significant contributions to a large number of disciplines, as well as to the educational and research programmes of about 70 countries worldwide. There are substantial utilization issues being faced by the research reactor community, including the selection, design and operation of various types of devices in research reactors. This publication has been prepared by the IAEA to facilitate the exchange of ideas, concepts and experience. It presents descriptions of design and utilization features of facilities and associated devices that are implemented in different research reactors worldwide, covering selected fields of application.

Applied Reactor Physics

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Publisher : Presses inter Polytechnique
ISBN 13 : 2553014368
Total Pages : 426 pages
Book Rating : 4.5/5 (53 download)

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Book Synopsis Applied Reactor Physics by : Alain Hébert

Download or read book Applied Reactor Physics written by Alain Hébert and published by Presses inter Polytechnique. This book was released on 2009 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nuclear Science Abstracts

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ISBN 13 :
Total Pages : 926 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Nuclear Science Abstracts by :

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1968-03 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Molybdenum-99 for Medical Imaging

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Publisher : National Academies Press
ISBN 13 : 0309445310
Total Pages : 264 pages
Book Rating : 4.3/5 (94 download)

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Book Synopsis Molybdenum-99 for Medical Imaging by : National Academies of Sciences, Engineering, and Medicine

Download or read book Molybdenum-99 for Medical Imaging written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-11-28 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: The decay product of the medical isotope molybdenum-99 (Mo-99), technetium-99m (Tc-99m), and associated medical isotopes iodine-131 (I-131) and xenon-133 (Xe-133) are used worldwide for medical diagnostic imaging or therapy. The United States consumes about half of the world's supply of Mo-99, but there has been no domestic (i.e., U.S.-based) production of this isotope since the late 1980s. The United States imports Mo-99 for domestic use from Australia, Canada, Europe, and South Africa. Mo-99 and Tc-99m cannot be stockpiled for use because of their short half-lives. Consequently, they must be routinely produced and delivered to medical imaging centers. Almost all Mo-99 for medical use is produced by irradiating highly enriched uranium (HEU) targets in research reactors, several of which are over 50 years old and are approaching the end of their operating lives. Unanticipated and extended shutdowns of some of these old reactors have resulted in severe Mo-99 supply shortages in the United States and other countries. Some of these shortages have disrupted the delivery of medical care. Molybdenum-99 for Medical Imaging examines the production and utilization of Mo-99 and associated medical isotopes, and provides recommendations for medical use.

Nuclear Radiation in Geophysics / Kernstrahlung in der Geophysik

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Publisher : Springer-Verlag
ISBN 13 : 3642928374
Total Pages : 458 pages
Book Rating : 4.6/5 (429 download)

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Book Synopsis Nuclear Radiation in Geophysics / Kernstrahlung in der Geophysik by : Hans Israel

Download or read book Nuclear Radiation in Geophysics / Kernstrahlung in der Geophysik written by Hans Israel and published by Springer-Verlag. This book was released on 2013-03-08 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Die Radioaktivitat von Boden, Wasser und Luft ist ein klassisches Forschungs gebiet der Geophysik, aus dessen Ergebnissen diese von jeher reichen Nutzen zieht: Fragen nach der Warmebilanz des Erdinnern, nach dem Alter der Erde und dem der Gesteine haben erst von hier aus eine befriedigende Losung gefunden; H ydro logie und Balneologie verdanken der Radioaktivitat entscheidende Bereicherung; im Rahmen der Prospektion und Bodenforschung hat sie ihren Platz; in der Physik der Atmosphare bietet sie die wesentliche Grundlage zum Verstandnis der atmospharisch-elektrischen Erscheinungen; dem Meteor.

Reactor Burn-up Physics

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ISBN 13 :
Total Pages : 312 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Reactor Burn-up Physics by : International Atomic Energy Agency

Download or read book Reactor Burn-up Physics written by International Atomic Energy Agency and published by . This book was released on 1973 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Applications of Research Reactors

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Publisher : International Atomic Energy Agency
ISBN 13 : 9789201450104
Total Pages : 108 pages
Book Rating : 4.4/5 (51 download)

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Book Synopsis Applications of Research Reactors by : International Atomic Energy Agency

Download or read book Applications of Research Reactors written by International Atomic Energy Agency and published by International Atomic Energy Agency. This book was released on 2014 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication is a comprehensive study that reviews the current situation in a great number of applications of research reactors. It revises the contents of IAEA TECDOC-1234, The Applications of Research Reactors, giving detailed updates on each field of research reactor uses worldwide. Reactors of all sizes and capabilities can benefit from the sharing of current practices and research enabled via this updated version, which describes the requirements for practicing methods as diverse as neutron activation analysis, education and training, neutron scattering and neutron imaging, silicon doping and radioisotope production, material/fuel irradiation and testing, and some others. Many underutilised research reactors can learn how to diversify their technical capabilities, staff and potential commercial partners and users seeking research reactor services and products. The content of the publication has also been strengthened in terms of current issues facing the vast majority of research reactors by including sections describing user and customer relations as well as strategic planning considerations.