Download or read book The Development and Evaluation of Recoil nucleus Time of flight Neutron Depth Profiling written by John Francis Welsh and published by . This book was released on 1996 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Conventional and Time of flight Neutron Depth Profiling at Cornell written by Zhiqiang Li and published by . This book was released on 2002 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development and Applications of Time of Flight Neutron Depth Profiling written by and published by . This book was released on 2005 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The depth profiles of intentional or intrinsic constituents of a sample provide valuable information for the characterization of materials. For example, the subtle differences in spatial distribution and composition of many chemical species in the near surface region and across interfacial boundaries can significantly alter the electronic and optical properties of materials. A number of analytical techniques for depth profiling have been developed during the last two decades. neutron Depth Profiling (NDP) is one of the leading analytical techniques. The NDP is a nondestructive near surface technique that utilizes thermal/cold neutron beam to measure the concentration of specific light elements versus their depth in materials. The depth is obtained from the energy loss of protons, alphas or recoil atoms in substrate materials. Since the charged particle energy determination using surface barrier detector is used for NDP, the depth resolution is highly dependent on the detectors an d detection instruments. The depth resolutions of a few tens of nm are achieved with available NDP facilities in the world. However, the performance of NDP needs to be improved in order to obtain a few A depth resolutions.
Download or read book Development of an Ion Time of flight Spectrometer for Neutron Depth Profiling written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1997 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transactions of the American Nuclear Society written by American Nuclear Society and published by . This book was released on 1958 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Multi detector Digital Neutron Depth Profiling Instrument at The Ohio University written by Padhraic Liam Mulligan and published by . This book was released on 2012 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Neutron Depth Profiling (NDP) is a nondestructive analytical technique used to characterize the concentration of certain light isotopes in a material as a function of depth. The technique is based on the principle of measuring the residual energy of charged particles in neutron induced reactions. Historically, NDP has been performed using a single detector, resulting in low intrinsic detection efficiency, and limiting the technique largely to high flux research reactors. This work describes a new NDP instrument design with higher detection efficiency, achieved by summing the spectrum obtained from multiple detectors. A digital data acquisition system was chosen over the typical analog system for this instrument, as it allowed for an economical implementation of multiple detectors and a streamlined process for spectrum summing. This design is capable of acquiring a statistically significant charged particle spectrum at facilities limited in neutron flux and operation time. The spectrum obtained from a sample of Borophosphosilicate (BPSG) with this multidetector instrument was compared to the analysis performed on the same sample at the National Institute of Standards and Technology (NIST), using a benchmarked, single detector NDP instrument. Results of the analysis indicate the resolution of the multidetector instrument suffers slightly due to gamma contamination in the beam, but is capable of achieving nearly half the count rate of the NIST instrument. A model of the instrument investigating BPSG was constructed using the GEANT4 toolkit, and used to compare against the experimental results. A section of 6Li enriched scintillation screen was also analyzed using the multidetector instrument. This analysis gave insight into the concentration profile of this particular neutron converter, something that had previously been unknown.
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1996 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forward Recoil Spectrometry written by Y. Serruys and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: The practical properties of many materials are dominated by surface and near-surface composition and structure. An understanding of how the surface region affects material properties starts with an understanding of the elemental composition of that region. Since the most common contaminants are light elements (for example, oxygen, nitrogen, carbon, and hydrogen), there is a clear need for an analytic probe that simultaneously and quantitatively records elemental profiles of all light elements. Energy recoil detection using high-energy heavy ions is unique in its ability to provide quantitative profiles of light and medium mass elements. As such this method holds great promise for the study of a variety of problems in a wide range of fields. While energy recoil detection is one of the newest and most promising ion beam analytic techniques, it is also the oldest in terms of when it was first described. Before discussing recent developments in this field, perhaps it is worth reviewing the early days of this century when the first energy recoil detection experiments were reported.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1971 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1980 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to the Theory of Thermal Neutron Scattering written by G. L. Squires and published by Cambridge University Press. This book was released on 2012-03-29 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: A long-awaited reprint of the book that has established itself as the classic textbook on neutron scattering. It will be an invaluable introductory text for students taking courses on neutron scattering, as well as for researchers and those who would like to deepen their knowledge on the subject through self-study.
Download or read book Magnetic Fusion Technology written by Thomas J. Dolan and published by Springer Science & Business Media. This book was released on 2014-02-10 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic Fusion Technology describes the technologies that are required for successful development of nuclear fusion power plants using strong magnetic fields. These technologies include: • magnet systems, • plasma heating systems, • control systems, • energy conversion systems, • advanced materials development, • vacuum systems, • cryogenic systems, • plasma diagnostics, • safety systems, and • power plant design studies. Magnetic Fusion Technology will be useful to students and to specialists working in energy research.
Download or read book The Engineering Index Annual written by and published by . This book was released on 1988 with total page 2282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.
Download or read book Nuclear Principles in Engineering written by Tatjana Jevremovic and published by Springer Science & Business Media. This book was released on 2009-04-21 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear engineering plays an important role in various industrial, health care, and energy processes. Modern physics has generated its fundamental principles. A growing number of students and practicing engineers need updated material to access the technical language and content of nuclear principles. "Nuclear Principles in Engineering, Second Edition" is written for students, engineers, physicians and scientists who need up-to-date information in basic nuclear concepts and calculation methods using numerous examples and illustrative computer application areas. This new edition features a modern graphical interpretation of the phenomena described in the book fused with the results from research and new applications of nuclear engineering, including but not limited to nuclear engineering, power engineering, homeland security, health physics, radiation treatment and imaging, radiation shielding systems, aerospace and propulsion engineering, and power production propulsion.
