New Opportunities in Neutron Capture Research Using Advanced Pulsed Neutron Sources PDF Download
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Languages : en
Pages :
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Book Description
The extraordinary neutron intensities available from the new spallation pulsed neutron sources open up exciting opportunities for basic and applied research in neutron nuclear physics. Prospective experiments are reviewed with particular attention to those with a strong connection to capture gamma-ray spectroscopy.
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Category :
Languages : en
Pages :
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Book Description
The extraordinary neutron intensities available from the new spallation pulsed neutron sources open up exciting opportunities for basic and applied research in neutron nuclear physics. Prospective experiments are reviewed with particular attention to those with a strong connection to capture gamma-ray spectroscopy.
Author:
Publisher: DIANE Publishing
ISBN: 9781422328484
Category :
Languages : en
Pages : 4
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Author: M. Frederick Hawthorne
Publisher: Springer
ISBN: 1461512859
Category : Medical
Languages : en
Pages : 1389
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Book Description
Frontiers in Neutron Capture Therapy contains current research results originally presented at the Eighth International Symposium on Neutron Capture Therapy for Cancer in La Jolla, CA. This comprehensive collection of peer-reviewed manuscripts is showcased in two volumes covering all aspects of the development of this multidisciplinary approach to cancer therapy. Volume I of this work includes clinical results and current progress in treatment planning, neutron sources and dosimetry, while Volume II presents the synthesis, pharmacology and tissue-targeting design of boron compounds, including work on preclinical dosimetry and radiobiology. Intended for researchers and clinicians involved with or interested in new modes of cancer therapy, this volume will also serve as a useful guideline for scientists, students, and practitioners in the field.
Author: Ian S. Anderson
Publisher: Springer Science & Business Media
ISBN: 0387786937
Category : Technology & Engineering
Languages : en
Pages : 346
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Book Description
Neutron Imaging and Applications offers an introduction to the basics of neutron beam production in addition to the wide scope of techniques that enhance imaging application capabilities. An instructional overview of neutron sources, detectors, optics and spin-filters allows readers to delve more deeply into the discussions of radiography, tomography and prospective applications available in neutron holography techniques. A section devoted to current applications describes imaging single grains in polycrystalline materials, neutron imaging of geological materials and other materials science and engineering areas. Coverage of thermal neutron imaging of biological tissues, plant physiology, Homeland Security and contraband detection explore the future prospects of this cutting-edge research. Written by key experts in the field, researchers and engineers involved with imaging technologies will find Neutron Imaging and Applications a valuable reference.
Author: E. Frank Martina
Publisher:
ISBN:
Category : Neutron sources
Languages : en
Pages : 12
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Author: International Atomic Energy Agency
Publisher: IAEA Radiation Technology Repo
ISBN: 9789201251107
Category : Science
Languages : en
Pages : 145
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Book Description
This publication addresses recent developments in neutron generator (NG) technology. It presents information on compact instruments with high neutron yield to be used for neutron activation analysis (NAA) and prompt gamma neutron activation analysis in combination with high count rate spectrometers. Traditional NGs have been shown to be effective for applications including borehole logging, homeland security, nuclear medicine and the on-line analysis of aluminium, coal and cement. Pulsed fast thermal neutron analysis, as well as tagged and timed neutron analysis, are additional techniques which can be applied using NG. Furthermore, NG can effectively be used for elemental analysis and is also effective for analysis of hidden materials by neutron radiography. Useful guidelines for developing NG based research laboratories are also provided in this publication.
Author: Adrian S. Losko
Publisher:
ISBN:
Category : Neutrons
Languages : en
Pages : 218
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Book Description
The growing demand for electrical power presents one of the major challenges for the well-being of future generations. For the foreseeable future, it seems highly unlikely that the projected energy needs can be met by fossil and/or alternative energy sources alone; therefore, nuclear power will continue to play a significant role in power generation. Neutrons can be used to study a wide range of problems related to these efforts, providing a unique probe ranging from crystal chemistry of nuclear fuels to engineering diffraction of structural materials used in nuclear reactors. Traditionally, most experimental investigations with neutrons invoke diffraction techniques. However, recent advances in neutron detection resulted in new capabilities of material characterization using neutron imaging, which provides unparalleled opportunities particularly for nuclear materials, where heavy elements (e.g., uranium) need to be imaged together with light elements (e.g., hydrogen, oxygen). The inherent energy sorting of the neutrons at pulsed sources permits performing isotope-specific studies through selected settings of the contrast to a particular isotope (via neutron resonances). Moreover, the application of state-of-the-art tomographic reconstruction algorithms allows reconstructing, in 3D, the spatial distribution in cm-sized samples of quantities derived from these effects, in particular element or isotope distributions. None of this is currently possible with X-ray or reactor neutron radiography, and at present this technique is only possible at pulsed neutron sources at Los Alamos Neutron Science Center (LANSCE), Spallation Neutron Source at Oak-Ridge National Laboratory, ISIS in the United Kingdom, and at the Japan Proton Accelerator Research Complex (J-PARC) in Japan, of which only the J-PARC facility has a dedicated beam line for this technique. In this dissertation, I present the results of spatially-resolved neutron imaging and diffraction experiments (including texture measurements) on non-irradiated nuclear fuels. Furthermore, I present absolute isotopic areal density measurements with a two-dimensional detector and a pixel size of 55[mu]m using the time-structured LANSCE neutron beam applied to some nuclear-engineering application for the first time. More specifically, I introduce a novel, energy-resolved neutron imaging technique that utilizes the physical properties of neutron cross sections by analyzing nuclear resonances with the SAMMY code, which was developed by Oak Ridge National Laboratory for the analysis of cross section data in the resolved and unresolved resonance regions. To the best of my knowledge, this work presents the first applications beyond demonstration experiments of absorption based energy-resolved neutron imaging by applying this technique to characterize the isotope distributions in nuclear fuel and study the diffusion of ions dissolved in aquaeous solution into cement. My dissertation emphasizes the benefits of neutron radiography as a non-destructive characterization method to guide future experiments on post-irradiated nuclear fuels, enabling the quantification of isotope concentrations for a variety of imaging problems.
Author: International Collaboration on Advanced Neutron Sources. Meeting
Publisher: CRC Press
ISBN:
Category : Art
Languages : en
Pages : 908
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Book Description
Revolving around the interaction between spectrometer and target-station design and performance, this volume emphasises the need for feedback that must exist between scientific requirements and source design. It achieves a forum for the sharing of information on the development of spallation neutron sources. Of great value to researchers in condensed matter physics, instrumentation and data processing involved in neutron scattering at pulsed and steady sources.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 8
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Book Description
Brookhaven National Laboratory has been involved in advanced neutron sources almost from its inception in 1947. These efforts have mainly focused on steady state reactors beginning with the construction of the first research reactor for neutron beams, the Brookhaven Graphite Research Reactor. This was followed by the High Flux Beam Reactor that has served as the design standard for all the subsequent high flux reactors constructed worldwide. In parallel with the reactor developments BNL has focused on the construction and use of high energy proton accelerators. The first machine to operate over 1 GeV in the world was the Cosmotron. The machine that followed this, the AGS, is still operating and is the highest intensity proton machine in the world and has nucleated an international collaboration investigating liquid metal targets for next generation pulsed spallation sources. Early work using the Cosmotron focused on spallation product studies for both light and heavy elements into the several GeV proton energy region. These original studies are still important today. In the sections below the authors discuss the facilities and activities at BNL focused on advanced neutron sources. BNL is involved in the proton source for the Spallation Neutron source, spectrometer development at LANSCE, target studies using the AGS and state-of-the-art neutron detector development.
