Download or read book RADSAT Benchmarks for Prompt Gamma Neutron Activation Analysis Measurements written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The accurate and efficient simulation of coupled neutron-photon problems is necessary for several important radiation detection applications. Examples include the detection of nuclear threats concealed in cargo containers and prompt gamma neutron activation analysis for nondestructive determination of elemental composition of unknown samples. High-resolution gamma-ray spectrometers are used in these applications to measure the spectrum of the emitted photon flux, which consists of both continuum and characteristic gamma rays with discrete energies. Monte Carlo transport is the most commonly used simulation tool for this type of problem, but computational times can be prohibitively long. This work explores the use of multi-group deterministic methods for the simulation of coupled neutron-photon problems. The main purpose of this work is to benchmark several problems modeled with RADSAT and MCNP to experimental data. Additionally, the cross section libraries for RADSAT are updated to include ENDF/B-VII cross sections. Preliminary findings show promising results when compared to MCNP and experimental data, but also areas where additional inquiry and testing are needed. The potential benefits and shortcomings of the multi-group-based approach are discussed in terms of accuracy and computational efficiency.
Download or read book Handbook of Prompt Gamma Activation Analysis written by G. Molnar and published by Springer Science & Business Media. This book was released on 2010-02-23 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prompt gamma activation analysis (PGAA) is a unique, non-destructive nuclear analytical method with multi-element capabilities. It is most effective if intense neutron beams (especially cold beams) of nuclear reactors are used to induce the prompt gamma radiation. Based largely on the authors' pioneering research in cold neutron PGAA, the handbook describes the methodology in self-contained manner and reviews recent applications. The library of prompt gamma ray data and spectra for all natural elements is a unique aid to the practitioner. The level is understandable by a broad audience, which facilitates teaching and training. The Handbook of Prompt Gamma Activation Analysis is a comprehensive handbook written for those practising the method, wanting to implement it at a reactor facility, or just looking for a powerful non-destructive method of element analysis. The book is also useful for nuclear physics, chemistry and engineering scientists, scholars and graduate students interested in neutron-induced gamma ray spectroscopy and nuclear analytical methods.
Download or read book Prompt and Delay Gamma Ray Measurements for in vivo Neutron Activation Analysis Using a Cyclic System written by E. P. Matthews and published by . This book was released on 1979 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prompt Gamma Ray Neutron Activation Analysis PGNAA for Elemental Analysis written by Robin P. Gardner and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research project was to improve the prompt gamma-ray neutron activation analysis (PGNAA) measurement approach for bulk analysis, oil well logging, and small sample thermal enutron bean applications.
Download or read book Prompt Gamma ray and Cyclic Neutron Activation Analysis with Applications written by C. A. Adesanmi and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Downhole Prompt Gamma Neutron Activation Analysis written by Craig P. Smith and published by . This book was released on 2014 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundaci n Intendente Luis Felipe de las Heras written by and published by . This book was released on 1991 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Database for Prompt Gamma ray Neutron Activation Analysis written by Richard M. Lindstrom and published by . This book was released on 2003 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prompt Gamma ray Neutron Activation Analysis of River Sediments written by Michael Spychala and published by . This book was released on 1988 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prompt Gamma ray Neutron Activation Analysis for Multi element Determination in Sediment Samples written by Michael Spychala and published by . This book was released on 1988 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geophysical Applications of Prompt Gamma ray Neutron Activation Analysis written by International Atomic Energy Agency and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Prompt Gamma Ray Neutron Activation Analysis for Determining the Phase Amounts in Multiphase Flow written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Digital Gamma gamma Coincidence Measurements for Neutron Activation Analysis written by Francis Jude Martinez and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability to perform low level counting, specifically gamma spectroscopy, for unknown radionuclides provides some challenges. In many cases, the ability to assess a material requires the use of neutron activation analysis (NAA) to excite the unknown sample to allow for the use of gamma ray measurement techniques to determine the radionuclides that are present. Quite often, the ability to identify unique gamma rays is challenging due to the fact that many radionuclides have gamma rays that have energies that are nearby other gamma rays from other radionuclides. The Compton continuum and high background radiation levels also contribute to the difficulty to make these measurements. This research has explored the use of an advanced digital gamma-gamma coincidence system, XIA Pixie-16, for use in neutron activation analysis. The reason for performing this research is that, although gamma-gamma coincidence in NAA is not a new area of research, there has not been a comprehensive study of the use of gamma-gamma coincidence for all NAA products. This research has the potential to benefit research and experiments that utilize NAA techniques for identifying unknown samples. The new XIA Pixie-16 system was first assembled and characterized. It was then used to perform measurements for all applicable short-lived, medium-lived and long-lived NAA products. The gamma-gamma coincidence system was utilized to identify radionuclides in different samples that have been demonstrated to be difficult to identify using standard gamma spectroscopy techniques. A thorough evaluation of the results of this research should serve as a reference for all future NAA research
Download or read book Angular Correlation of Gamma gamma Coincidence Measurements for Neutron Activation Analysis written by Kevin George Smith and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines and Metrics for Assessing Space System Cost Estimates written by Bernard Fox and published by RAND Corporation. This book was released on 2008 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Introduction / 2. Space system fundamentals / 3. Reviewing a cost estimate / 4. Space vehicle cost crosschecks / 5. Common issues in estimating space programs / 6. Resources for space system cost estimation / 7. Recommendations.
Download or read book Orbital Debris written by National Research Council and published by National Academies Press. This book was released on 1995-07-07 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the beginning of space flight, the collision hazard in Earth orbit has increased as the number of artificial objects orbiting the Earth has grown. Spacecraft performing communications, navigation, scientific, and other missions now share Earth orbit with spent rocket bodies, nonfunctional spacecraft, fragments from spacecraft breakups, and other debris created as a byproduct of space operations. Orbital Debris examines the methods we can use to characterize orbital debris, estimates the magnitude of the debris population, and assesses the hazard that this population poses to spacecraft. Potential methods to protect spacecraft are explored. The report also takes a close look at the projected future growth in the debris population and evaluates approaches to reducing that growth. Orbital Debris offers clear recommendations for targeted research on the debris population, for methods to improve the protection of spacecraft, on methods to reduce the creation of debris in the future, and much more.
Download or read book Institute of Energy and Climate Research IEK 6 Nuclear Waste Management Reactor Safety Report 2009 2010 Material Science for Nuclear Waste Management written by and published by Forschungszentrum Jülich. This book was released on 2011 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt:
