A DEPLOYABLE FAST-NEUTRON CODED-APERTURE IMAGER FOR QUANTIFYING NUCLEAR MATERIAL. PDF Download
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Languages : en
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Author:
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Author:
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Languages : en
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In the past year, a prototype fast-neutron coded-aperture imager has been developed that has sufficient efficiency and resolution to make the counting of warheads for possible future treaty confirmation scenarios via their fission-neutron emissions practical. The imager is constructed from custom-built pixelated liquid scintillator detectors. The liquid scintillator detectors enable neutron-gamma discrimination via pulse shape, and the pixelated construction enables a sufficient number of pixels for imaging in a compact detector with a manageable number of channels of readout electronics. The imager has been used to image neutron sources at ORNL, special nuclear material (SNM) sources at the Idaho National Laboratory (INL) Zero Power Physics Reactor (ZPPR) facility, and neutron source and shielding configurations at Sandia National Laboratories. This paper reports on the design and construction of the imager, characterization measurements with neutron sources at ORNL, and measurements with SNM at the INL ZPPR facility.
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Category :
Languages : en
Pages : 3
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Author: Sarah Minot Asrar
Publisher: Rowman & Littlefield
ISBN: 1442281049
Category : Political Science
Languages : en
Pages : 207
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The papers included in this volume comprise research from participants in the 2018 Nuclear Scholars Initiative and the Project on Nuclear Issues (PONI) Conference Series. PONI sponsors this research to provide a forum for facilitating new and innovative thinking and to provide a platform for emerging thought leaders across the nuclear enterprise. The papers in this volume span a wide range of technical and policy issues, further discussion in their respective areas, and provide innovative recommendations for pressing challenges. To that end, these papers explore such topics as the impacts of emerging technologies and capabilities, deep-diving on nuclear strategy and national policies, proposing paths forward for addressing proliferation challenges, and enhancing arms control in contentious environments.
Author: International Atomic Energy Agency
Publisher:
ISBN: 9789201310101
Category : Medical
Languages : en
Pages : 0
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This publication is aimed at students and teachers involved in programmes that train medical physicists for work in diagnostic radiology. It provides a comprehensive overview of the basic medical physics knowledge required in the form of a syllabus for the practice of modern diagnostic radiology. This makes it particularly useful for graduate students and residents in medical physics programmes. The material presented in the publication has been endorsed by the major international organizations and is the foundation for academic and clinical courses in both diagnostic radiology physics and in emerging areas such as imaging in radiotherapy.
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Category : Military art and science
Languages : en
Pages : 542
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Author: Matthieu Hamel
Publisher: Springer Nature
ISBN: 3030734889
Category : Science
Languages : en
Pages : 647
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This book introduces the physics and chemistry of plastic scintillators (fluorescent polymers) that are able to emit light when exposed to ionizing radiation, discussing their chemical modification in the early 1950s and 1960s, as well as the renewed upsurge in interest in the 21st century. The book presents contributions from various researchers on broad aspects of plastic scintillators, from physics, chemistry, materials science and applications, covering topics such as the chemical nature of the polymer and/or the fluorophores, modification of the photophysical properties (decay time, emission wavelength) and loading of additives to make the material more sensitive to, e.g., fast neutrons, thermal neutrons or gamma rays. It also describes the benefits of recent technological advances for plastic scintillators, such as nanomaterials and quantum dots, which allow features that were previously not achievable with regular organic molecules or organometallics.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309059917
Category : Technology & Engineering
Languages : en
Pages : 358
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Book Description
Optical science and engineering affect almost every aspect of our lives. Millions of miles of optical fiber carry voice and data signals around the world. Lasers are used in surgery of the retina, kidneys, and heart. New high-efficiency light sources promise dramatic reductions in electricity consumption. Night-vision equipment and satellite surveillance are changing how wars are fought. Industry uses optical methods in everything from the production of computer chips to the construction of tunnels. Harnessing Light surveys this multitude of applications, as well as the status of the optics industry and of research and education in optics, and identifies actions that could enhance the field's contributions to society and facilitate its continued technical development.
Author: United States. Congress. House. Select Committee on U.S. National Security and Military/Commercial Concerns with the People's Republic of China
Publisher:
ISBN:
Category : China
Languages : en
Pages : 3
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Transmittal letter.
