Separation of Nuclear Isomers PDF Download

Author: W. S. Koski
Publisher:
ISBN:
Category : Nuclear isomers
Languages : en
Pages : 6

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Author:
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ISBN:
Category :
Languages : en
Pages :

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Book Description
Pure specimens of nuclear isomers are required for gamma-ray lasers. Atoms containing isomeric nuclei of 197Hg are selectively photoionized. The isomers were produced by the 197Au(d,2n)197Hg reaction and distilled. Three pulsed dye lasers were used to selectively ionize mercury atoms by doubly resonant three-step photoionization. Other isomer separation techniques and their limitations are discussed. 7 refs., 4 figs.

Author:
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ISBN:
Category :
Languages : en
Pages :

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We explore the feasibility of separating 1014-atom quantities of the nuclear isomer /sup 197m/Hg, using a three-step resonance ionization technique. It should be straightforward to achieve the separation in times of the order of 100 seconds, and there is a possibility of attaining separation times well under 1 second, as would be required for direct use in a gamma-ray laser.

Author: John Edward Esterl
Publisher:
ISBN:
Category :
Languages : en
Pages : 26

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Author: Reid Peterson
Publisher: CRC Press
ISBN: 0429882556
Category : Science
Languages : en
Pages : 328

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Book Description
Engineering Separations Unit Operations for Nuclear Processing provides insight into the fundamentals of separations in nuclear materials processing not covered in typical texts. This book integrates fuel cycle and waste processing into a single, coherent approach, demonstrating that the principles from one field can and should be applied to the other. It provides historical perspectives on nuclear materials processing, current assessment and challenges, and how past challenges were overcome. It also provides understanding of the engineering principles associated with handling nuclear materials. This book is aimed at researchers, graduate students, and professionals in the fields of chemical engineering, mechanical engineering, nuclear engineering, and materials engineering.

Author: Kara Marie Lynch
Publisher: Springer
ISBN: 3319071122
Category : Science
Languages : en
Pages : 140

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This work details an application of collinear resonance ionization spectroscopy for the separation of short-lived isomeric states and their subsequent study with decay spectroscopy. It reports the successful construction of a novel decay spectroscopy apparatus that can operate at pressures below 1 x 10^-9 mbar. The method is demonstrated by separating the nuclear ground and isomeric states of 204Fr and performing alpha-decay spectroscopy. An equivalent mass spectrometer would require 4.6 million times as much resolution to achieve the same result. This work unambiguously confirms the existence of a second isomeric state in 204Fr. The author also demonstrates the effectiveness of this method for laser spectroscopy and identification of hyperfine-structure components with energy tagging. This method was successfully used in 202Fr to identify ground and isomeric states. The measurement of 202Fr reported in this thesis demonstrates a factor of 100 improvement in sensitivity compared to state-of-the-art fluorescence techniques. The work reported in this thesis won the author the IOP Nuclear Physics Group Early Career Prize.

Author: British Nuclear Energy Society
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 272

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Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 680

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Author: Thomas E Carleson
Publisher: CRC Press
ISBN: 1351357840
Category : Technology & Engineering
Languages : en
Pages : 334

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Book Description
Separation Techniques in Nuclear Waste Management is an up-to-date, comprehensive survey of processes for separation of nuclear wastes. Comprised of articles by scientists and engineers at universities and national laboratories in the U.S. and overseas, the book provides excellent reference information for individuals working in nuclear waste management. Specifically, the book covers current separation technologies and techniques for waste liquid, solid, and gas streams that contain radionuclides. Such wastes are typical of those produced as a result of nuclear materials processing and spent fuel reprocessing. Chapters on promising new technologies and state-of-the-art processes currently in use provide valuable information for design engineers, as well as for research scientists. The articles in Separation Techniques in Nuclear Waste Management are brief and concise - designed for quick access to pertinent information. Many of the contributors are leaders in their fields. It is the most current survey available of the latest nuclear waste management techniques.

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309130395
Category : Medical
Languages : en
Pages : 220

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Book Description
This book is the product of a congressionally mandated study to examine the feasibility of eliminating the use of highly enriched uranium (HEU2) in reactor fuel, reactor targets, and medical isotope production facilities. The book focuses primarily on the use of HEU for the production of the medical isotope molybdenum-99 (Mo-99), whose decay product, technetium-99m3 (Tc-99m), is used in the majority of medical diagnostic imaging procedures in the United States, and secondarily on the use of HEU for research and test reactor fuel. The supply of Mo-99 in the U.S. is likely to be unreliable until newer production sources come online. The reliability of the current supply system is an important medical isotope concern; this book concludes that achieving a cost difference of less than 10 percent in facilities that will need to convert from HEU- to LEU-based Mo-99 production is much less important than is reliability of supply.