Download or read book Spectral Effects in Neutron and Charged Particle Irradiations written by DG. Doran and published by . This book was released on 1975 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper addresses the problem of the dependence of radiation damage in metals on the type and energy of the incident particle. The calculation and use of displacement and point defect production as energy dependent measures of exposure are described. A brief review is given of the quasiempirical, energy dependent damage function approach to determining the damaging effectiveness of different neutron spectra; included is a summary of derived effective damage functions and their dependence on or contribution to an understanding of damage mechanisms. Lastly, swelling rates of Type 316 stainless steel irradiated by neutrons, nickel ions, protons, and electrons are shown to correlate qualitatively with mobile vacancy production rates as deduced from computer modeling.
Download or read book Properties of Reactor Structural Alloys After Neutron Or Particle Irradiation written by C. J. Baroch and published by ASTM International. This book was released on 1975 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standard Practice for Investigating the Effects of Neutron Radiation Damage Using Charged Particle Irradiation written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Nuclear Energy written by and published by Elsevier. This book was released on 2021-07-15 with total page 3656 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Nuclear Energy provides a comprehensive and reliable overview of the many ways nuclear energy contributes to society. Comprised of four volumes, it includes topics such as generating clean electricity, improving medical diagnostics and cancer treatment, improving crop yields, improving food shelf-lives, and crucially, the deployment of nuclear energy as an alternative energy source, one that is proving to be essential in the management of global warming. Carefully structured into thematic sections, this encyclopedia brings together the vast and highly diversified literature related to nuclear energy into a single resource, with convenient to read, cross-referenced chapters. This book will serve as an invaluable resource for researchers in the fields of energy, engineering, material science, chemistry, and physics, from both industry and academia. Offers a contemporary review of current nuclear energy research and insights into the future direction of the field, hence negating the need for individual searches across various databases Written by academics and practitioners from different fields to ensure that the knowledge within is easily understood by, and applicable to, a large audience Meticulously organized, with articles split into sections on key topics and clearly cross-referenced to allow students, researchers and professionals to quickly and easily find relevant information
Download or read book Effects of Radiation on Materials written by Roger E. Stoller and published by ASTM International. This book was released on 1992 with total page 1315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Symposium held in Nashville, Tennessee, June 1990. Almost two-thirds of these 91 papers are authored by researchers outside of the US (including information on research in the former USSR, Japan, and Europe). Topics include: current commercial power reactor systems; microstructural characterization
Download or read book The Effect of Neutron Irradiation on Remanent Magnetization in Iron and Kamacite written by Robert F. Butler and published by . This book was released on 1972 with total page 222 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 1976-06 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Dosimetry for Fast Neutrons and Heavy Charged Particles for Therapy Applications written by International Atomic Energy Agency and published by . This book was released on 1984 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interaction of Particles and Radiation with Matter written by Vsevolod V. Balashov and published by Springer. This book was released on 1997-03-20 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is organized into fourteen lectures on modern atomic and nuclear physics. It begins with a concise introduction on the constituents of matter (elementary particles, atomic nuclei, atoms and molecules) and then focuses on the interaction of particles and radiation with matter. The lectures each range from physical fundamentals to current topics in subatomic and atomic research, thus making links to modern applications. Currently important topics such as channeling, the interaction between molecular ions and matter, and muon-catalyzed fusion are also discussed. The text is suitable as an introduction for graduate students and as a reference for scientists.
Download or read book Introduction to Radiological Physics and Radiation Dosimetry written by Frank Herbert Attix and published by John Wiley & Sons. This book was released on 2008-09-26 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: A straightforward presentation of the broad concepts underlying radiological physics and radiation dosimetry for the graduate-level student. Covers photon and neutron attenuation, radiation and charged particle equilibrium, interactions of photons and charged particles with matter, radiotherapy dosimetry, as well as photographic, calorimetric, chemical, and thermoluminescence dosimetry. Includes many new derivations, such as Kramers X-ray spectrum, as well as topics that have not been thoroughly analyzed in other texts, such as broad-beam attenuation and geometrics, and the reciprocity theorem. Subjects are layed out in a logical sequence, making the topics easier for students to follow. Supplemented with numerous diagrams and tables.
Download or read book Research Awards Index written by and published by . This book was released on 1985 with total page 1436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectral Measurements and Carcinogenic Effects Modeling of Secondary Neutrons in Radiation Therapy written by Logan Montgomery and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "During high-energy radiation therapy, patients are exposed to a spectrum of secondary neutrons that pose an iatrogenic cancer risk. This risk is qualitatively encapsulated by quantities such as the International Commission on Radiological Protection's neutron weighting factors. These factors convey neutron relative biological effectiveness (RBE) for inducing stochastic radiobiological effects and are characterized by a marked energy dependence. However, there is lack of direct evidence as to the biophysical mechanisms underlying this energy dependence. The overall goal of this thesis was to advance our understanding of the carcinogenic risk posed by secondary neutrons to radiation therapy patients. This goal required knowledge of both the neutron spectra encountered in radiation therapy and how those spectra cause radiobiological effects. Therefore, two objectives were set:1) Demonstrate our ability to accurately measure neutron spectra produced in clinically-relevant scenarios.2) Develop a Monte Carlo model to investigate the biophysical mechanisms underlying the energy dependence of neutron RBE for stochastic effects. Two studies were conducted pertaining to objective #1. In the first study, a Nested Neutron Spectrometer (NNS) was used to measure and compare the neutron spectra produced by a 10 MV flattening-filter-free (FFF) beam and a conventional, flattened 10 MV beam. It was found that the FFF beam reduced the neutron fluence by 30-40% per monitor unit (MU) without appreciable change to the spectral shape. The primary cause of this reduction was found to be a decrease in the number of electrons striking the linac bremsstrahlung target per MU, rather than the removal of a source of neutrons in the flattening filter itself. The second study was designed to address a lack of objectivity in the process of unfolding raw NNS measurements into neutron spectra. The maximum-likelihood expectation-maximization (MLEM) algorithm that is used to unfold NNS measurements is an iterative process that requires a stopping criterion. Previously, the MLEM algorithm was terminated after a fixed number of iterations based on subjective user input, resulting in both intra-user and inter-user variations. In this study, an objective stopping criterion was developed that terminates unfolding at an optimal number of iterations without user input. Finally, a third study was conducted with regards to objective #2. The propensity of radiation to induce clusters of DNA damage is widely believed to be the primary initiating event for radiation-induced mutagenesis and subsequent carcinogenesis because clustered lesions are difficult to repair and rarely occur endogenously. Thus, a Monte Carlo application was developed to simulate the irradiation of nuclear DNA and score the resulting yields of clustered DNA damage. Simulations were performed for neutron energies between 1 and 10 MeV and a reference 250 keV x-ray radiation. The resulting neutron RBE for inducing clustered DNA damage exhibited qualitatively similar energy dependence to the published neutron weighting factors. This result was robust to a variety of simulation parameters, including low dose irradiation, and thus provides fundamental biophysical evidence towards explaining the energy dependence of neutron RBE for inducing stochastic radiobiological effects. The spectral measurements and Monte Carlo modeling described in this body of work represent marked advancements towards understanding and characterizing the relative carcinogenic risk posed by secondary neutrons to radiation therapy patients. This research was conducted in the spirit of open science and, as such, the unfolding algorithm and Monte Carlo application developed in this work were released under open-source licenses"--
Download or read book Fundamentals of Radiation Materials Science written by GARY S. WAS and published by Springer. This book was released on 2016-07-08 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt: The revised second edition of this established text offers readers a significantly expanded introduction to the effects of radiation on metals and alloys. It describes the various processes that occur when energetic particles strike a solid, inducing changes to the physical and mechanical properties of the material. Specifically it covers particle interaction with the metals and alloys used in nuclear reactor cores and hence subject to intense radiation fields. It describes the basics of particle-atom interaction for a range of particle types, the amount and spatial extent of the resulting radiation damage, the physical effects of irradiation and the changes in mechanical behavior of irradiated metals and alloys. Updated throughout, some major enhancements for the new edition include improved treatment of low- and intermediate-energy elastic collisions and stopping power, expanded sections on molecular dynamics and kinetic Monte Carlo methodologies describing collision cascade evolution, new treatment of the multi-frequency model of diffusion, numerous examples of RIS in austenitic and ferritic-martensitic alloys, expanded treatment of in-cascade defect clustering, cluster evolution, and cluster mobility, new discussion of void behavior near grain boundaries, a new section on ion beam assisted deposition, and reorganization of hardening, creep and fracture of irradiated materials (Chaps 12-14) to provide a smoother and more integrated transition between the topics. The book also contains two new chapters. Chapter 15 focuses on the fundamentals of corrosion and stress corrosion cracking, covering forms of corrosion, corrosion thermodynamics, corrosion kinetics, polarization theory, passivity, crevice corrosion, and stress corrosion cracking. Chapter 16 extends this treatment and considers the effects of irradiation on corrosion and environmentally assisted corrosion, including the effects of irradiation on water chemistry and the mechanisms of irradiation-induced stress corrosion cracking. The book maintains the previous style, concepts are developed systematically and quantitatively, supported by worked examples, references for further reading and end-of-chapter problem sets. Aimed primarily at students of materials sciences and nuclear engineering, the book will also provide a valuable resource for academic and industrial research professionals. Reviews of the first edition: "...nomenclature, problems and separate bibliography at the end of each chapter allow to the reader to reach a straightforward understanding of the subject, part by part. ... this book is very pleasant to read, well documented and can be seen as a very good introduction to the effects of irradiation on matter, or as a good references compilation for experimented readers." - Pauly Nicolas, Physicalia Magazine, Vol. 30 (1), 2008 “The text provides enough fundamental material to explain the science and theory behind radiation effects in solids, but is also written at a high enough level to be useful for professional scientists. Its organization suits a graduate level materials or nuclear science course... the text was written by a noted expert and active researcher in the field of radiation effects in metals, the selection and organization of the material is excellent... may well become a necessary reference for graduate students and researchers in radiation materials science.” - L.M. Dougherty, 07/11/2008, JOM, the Member Journal of The Minerals, Metals and Materials Society.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1978 with total page 1194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neutron Dosimetry written by John W. Baum and published by . This book was released on 1955 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements written by and published by . This book was released on 1974-11 with total page 1206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
