Download or read book Apparatus for Nuclear Transmutation and Power Production Using an Intense Accelerator generated Thermal Neutron Flux written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Apparatus for nuclear transmutation and power production using an intense accelerator-generated thermal neutron flux. High thermal neutron fluxes generated from the action of a high power proton accelerator on a spallation target allows the efficient burn-up of higher actinide nuclear waste by a two-step process. Additionally, rapid burn-up of fission product waste for nuclides having small thermal neutron cross sections, and the practicality of small material inventories while achieving significant throughput derive from employment of such high fluxes. Several nuclear technology problems are addressed including 1. nuclear energy production without a waste stream requiring storage on a geological timescale, 2. the burn-up of defense and commercial nuclear waste, and 3. the production of defense nuclear material. The apparatus includes an accelerator, a target for neutron production surrounded by a blanket region for transmutation, a turbine for electric power production, and a chemical processing facility. In all applications, the accelerator power may be generated internally from fission and the waste produced thereby is transmuted internally so that waste management might not be required beyond the human lifespan.
Download or read book High Power Linear Accelerators for Tritium Production and Transmutation of Nuclear Waste written by G.P. Lawrence and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radioactive Waste Management written by and published by . This book was released on 1981 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Official Gazette of the United States Patent and Trademark Office written by and published by . This book was released on 1992 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Wastes written by National Research Council and published by National Academies Press. This book was released on 1996-02-23 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: Disposal of radioactive waste from nuclear weapons production and power generation has caused public outcry and political consternation. Nuclear Wastes presents a critical review of some waste management and disposal alternatives to the current national policy of direct disposal of light water reactor spent fuel. The book offers clearcut conclusions for what the nation should do today and what solutions should be explored for tomorrow. The committee examines the currently used "once-through" fuel cycle versus different alternatives of separations and transmutation technology systems, by which hazardous radionuclides are converted to nuclides that are either stable or radioactive with short half-lives. The volume provides detailed findings and conclusions about the status and feasibility of plutonium extraction and more advanced separations technologies, as well as three principal transmutation concepts for commercial reactor spent fuel. The book discusses nuclear proliferation; the U.S. nuclear regulatory structure; issues of health, safety and transportation; the proposed sale of electrical energy as a means of paying for the transmutation system; and other key issues.
Download or read book High Power Linear Accelerators for Tritium Production and Transmutation of Nuclear Waste written by and published by . This book was released on 1990 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proton linacs driving high-flux spallation neutron sources are being considered for transmutation of nuclear waste and production of tritium. Advances in high-current linac technology have provided a basis for the development of credible designs for the required accelerator, which has a nominal 1.6-GeV energy, and a 250-mA cw current. A beam with these parameters incident on a liquid lead-bismuth (Pb-Bi) target can generate a thermal neutron flux of up to 5 × 1016 n/cm2-s in a cylindrical blanket surrounding the spallation source. This high flux can produce tritium through the 6Li(n, [alpha])T or 3He(n, [gamma])T reactions, or can burn long-lived actinides and fission products from nuclear waste through capture and fission processes. In some system scenarios, waste actinides and/or other fissile materials in the blanket can produce sufficient fission energy to power the accelerator.
Download or read book Nuclear Chemical Engineering written by Manson Benedict and published by McGraw-Hill Companies. This book was released on 1981 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Science of the Cold Fusion Phenomenon written by Hideo Kozima and published by Elsevier. This book was released on 2006-09-26 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Broken up in to three sections, The Science of the Cold Fusion Phenomenon gives a unified explanation of all the significant data on the Cold Fusion Phenomena to date. It presents a history of the Cold Fusion Phenomenon (CFP), gives the fundamental experimental results of the CFP and presents a quantum mechanical treatment of physical problems associated with cold fusion. - Overviews the abundance of research and investigation that followed the 'cold fusion scandal' in 1989 - Explores the fundamental science behind the original Fleischmann experiment
Download or read book Status of Accelerator Driven Systems Research and Technology Development written by International Atomic Energy Agency and published by IAEA Tecdoc. This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the greatest challenges for nuclear energy is how to properly manage the highly radioactive waste generated during irradiation in nuclear reactors. Accelerator Driven Systems (ADSs) may offer new prospects and advantages for the transmutation of such high level nuclear waste. ADS or accelerator driven transmutation of waste (ATW) consists of a high power proton accelerator, a heavy metal spallation target that produces neutrons when bombarded by the high power beam, and a sub-critical core that is neutronically coupled to the spallation target. This publication provides a comprehensive state of the art of the ADS technology by representing the different ADS concepts proposed worldwide in the last 15 years, as well as the related R&D activities and demonstration initiatives carried out at national international level.
Download or read book Reducing the Use of Highly Enriched Uranium in Civilian Research Reactors written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-02-12 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continued presence of highly enriched uranium (HEU) in civilian installations such as research reactors poses a threat to national and international security. Minimization, and ultimately elimination, of HEU in civilian research reactors worldwide has been a goal of U.S. policy and programs since 1978. Today, 74 civilian research reactors around the world, including 8 in the United States, use or are planning to use HEU fuel. Since the last National Academies of Sciences, Engineering, and Medicine report on this topic in 2009, 28 reactors have been either shut down or converted from HEU to low enriched uranium fuel. Despite this progress, the large number of remaining HEU-fueled reactors demonstrates that an HEU minimization program continues to be needed on a worldwide scale. Reducing the Use of Highly Enriched Uranium in Civilian Research Reactors assesses the status of and progress toward eliminating the worldwide use of HEU fuel in civilian research and test reactors.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-12 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study on the Feasibility of Electron based Accelerator Driven Systems for Nuclear Waste Transmutation written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear waste transmutation is an important option for the development of advanced fuel cycle and effective nuclear waste management. The electron accelerator driven system (ADS) was investigated in the study for nuclear waste transmutation as an alternative to proton based ADS. Target design and optimization was carried out to obtain maximum neutron generation. Subcritical core design based on single and multiple targets was investigated. System performance between electron-based ADS and proton-based ADS was compared in terms of neutron generation rate, transmutation efficiency and power generation. It was determined that the electron-based target was capable of providing high neutron flux, small target geometry size, small scale subcritical core, and low radiation damage. Multiple target design in the electron-driven ADS was also explored to flatten power distribution in the ADS subcritical core. Regarding transmutation, the power peaking factors in both the electron- and proton- ADS increase ~ 10% during the burnup period of 700 days. Thermal power in proton ADS is higher than that of electron ADS by a factor ~ 20. The transmutation effectiveness of preliminary electron-based ADS is smaller by a factor of 11 compared to preliminary proton-based ADS. Proton ADS has higher radiation damage to target materials and surrounding materials. The capital cost for electron-based and proton-based accelerator facility is fairly comparable with the cost of proton-based facilities being slightly higher by a factor of 20%. Comparing with the proton-driven ADS, the electron-driven ADS pros include small target size and small core scale, multiple target possibility for low PPF, low radiation damage to target surroundings, wide availability electron beam at ~100 MeV, and low capital cost of electron accelerator facility. There are also aspects against electron-driven ADS, including low efficiency of neutron generation rate, low transmutation efficiency, low thermal power, and elec.
Download or read book Index of Patents Issued from the United States Patent and Trademark Office written by and published by . This book was released on 1992 with total page 1968 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Physics written by National Research Council and published by National Academies Press. This book was released on 1999-03-31 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dramatic progress has been made in all branches of physics since the National Research Council's 1986 decadal survey of the field. The Physics in a New Era series explores these advances and looks ahead to future goals. The series includes assessments of the major subfields and reports on several smaller subfields, and preparation has begun on an overview volume on the unity of physics, its relationships to other fields, and its contributions to national needs. Nuclear Physics is the latest volume of the series. The book describes current activity in understanding nuclear structure and symmetries, the behavior of matter at extreme densities, the role of nuclear physics in astrophysics and cosmology, and the instrumentation and facilities used by the field. It makes recommendations on the resources needed for experimental and theoretical advances in the coming decade.
Download or read book Applications of Research Reactors written by International Atomic Energy Agency and published by International Atomic Energy Agency. This book was released on 2014 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication is a comprehensive study that reviews the current situation in a great number of applications of research reactors. It revises the contents of IAEA TECDOC-1234, The Applications of Research Reactors, giving detailed updates on each field of research reactor uses worldwide. Reactors of all sizes and capabilities can benefit from the sharing of current practices and research enabled via this updated version, which describes the requirements for practicing methods as diverse as neutron activation analysis, education and training, neutron scattering and neutron imaging, silicon doping and radioisotope production, material/fuel irradiation and testing, and some others. Many underutilised research reactors can learn how to diversify their technical capabilities, staff and potential commercial partners and users seeking research reactor services and products. The content of the publication has also been strengthened in terms of current issues facing the vast majority of research reactors by including sections describing user and customer relations as well as strategic planning considerations.
Download or read book An Overview of Accelerator driven Transmutation Technology written by and published by . This book was released on 1994 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accelerator-Driven Transmutation Technology, or ADT2, is a collection of programs that share a common theme - they each have at their heart an intense source of neutrons generated by a high-energy proton beam striking a heavy metal target. The beam energy, typically 1000 MeV, is enough for a single proton to smash a target atom into atomic fragments. This so-called spallation process generates large numbers of neutrons (around 20 to 30 per proton) amid the atomic debris. These neutrons are of high value because they can be used to transmute neighboring atoms by neutron capture. Three distinct ADT2 program elements will be described. These are ADEP - accelerator-driven energy production, ABC - accelerator based conversion (of plutonium) and ATW - accelerator transmutation of waste.
Download or read book Photoneutron Sources written by B. W. Sargent and published by . This book was released on 1946 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
