Download or read book Los Alamos Neutron Science Center Contributions to the Development of Future Power Reactors written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Los Alamos Neutron Science Center (LANSCE) is a large spallation neutron complex centered around an 800 MeV high-currently proton accelerator. Existing facilities include a highly-moderated neutron facility (Lujan Center) where neutrons between thermal and keV energies are produced, and the Weapons Neutron Research Center (WNR), where a bare spallation target produces neutrons between 0.1 and several hundred MeV. The LANSCE facility offers a unique capability to provide high precision nuclear data over a large energy region, including that for fast reactor systems. In an ongoing experimental program the fission and capture cross sections are being measured for a number of minor actinides relevant for Generation-IV reactors and transmutation technology. Fission experiments makes use of both the highly moderated spallation neutron spectrum at the Lujan Center, and the unmoderated high energy spectrum at WNR. By combininb measurements at these two facilities the differential fission cross section is measured relative to the 235U(n, f) standard from subthermal energies up to about 200 MeV. An elaborate data acquisition system is designed to deal with all the different types of background present when spanning 10 energy decades. The first isotope to be measured was 237Np, and the results were used to improve the current ENDF/B-VII evaluation. Partial results have also been obtained for 24°Pu and 242Pu, and the final results are expected shortly. Capture cross sections are measured at LANSCE using the Detector for Advanced Neutron Capture Experiments (DANCE). This unique instrument is highly efficient in detecting radiative capture events, and can thus handle radioactive samples of half-lives as low as 100 years. A number of capture cross sections important to fast reaction applications have been measured with DANCE. The first measurement was on 237Np(n, [gamma]), and the results have been submitted for publication. Other capture measurements in progress include 24°Pu and 242Pu. The United States recently announced the Global Nuclear Energy Partnership (GNEP), with the goal of closing the commercial nuclear fuel cycle while minimizing proliferation risk. GNEP achieves these goals using fast-spectrum nuclear reactors powered by new transmutation fuels that contain significant quantities of minor actinides. The proposed Materials Test Station (MTS) will provide the GNEP with a cost-effective means of obtaining domestic fast-spectrum irradiations of advanced transmutation fuel forms and structural materials, which is an important step in the fuels qualification process. The MTS will be located at the LANSCE, and will be driven by a 1.08-MW proton beam. Th epeak neutron flux in the irradiation region is 1.67 x 1015 n/cm2/s, and the energy spectrum is similar to that of a fast reactor, with the addition of a high-energy tail. The facility is expected to operate at least 4,400 hours per year. Fuel burnup rates will exceed 4% per year, and the radiation damage rate in iron will be 18 dpa (displacements per atom) per year. The construction cost is estimated to be $73M (including 25% contingency), with annual operating costs in the range of $6M to $10M. Appropriately funded, the MTS could begin operation in 2010.

Download or read book Operational Status and Future Plans for Los Alamos Neutron Science Center written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Los Alamos Neutron Science Center (LANSCE) continues to be a signature experimental science facility at Los Alamos National Laboratory (LANL). The 800 MeV linear proton accelerator provides multiplexed beams to five unique target stations to produce medical radioisotopes, ultra-cold neutrons, thermal and high energy neutrons for material and nuclear science, and to conduct proton radiography of dynamic events. Recent operating experience will be reviewed and the role of an enhanced LANSCE facility in LANL's new signature facility initiative, Matter and Radiation in Extremes (MaRIE) will be discussed.

Download or read book Los Alamos Neutron Science Center written by Los Alamos National Laboratory and published by . This book was released on 2006 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Los Alamos Science written by and published by . This book was released on 2005 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neutron Physics for Nuclear Reactors written by Salvatore Esposito and published by World Scientific. This book was released on 2010 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique volume gives an accurate and very detailed description of the functioning and operation of basic nuclear reactors, as emerging from yet unpublished papers by Nobel Laureate Enrico Fermi. In the first part, the entire course of lectures on Neutron Physics delivered by Fermi at Los Alamos is reported, according to the version made by Anthony P French. Here, the fundamental physical phenomena are described very clearly and comprehensively, giving the appropriate physics grounds for the functioning of nuclear piles. In the second part, all the patents issued by Fermi (and coworkers) on the functioning, construction and operation of several different kinds of nuclear reactors are reported. Here, the main engineering problems are encountered and solved by employing simple and practical methods, which are described in detail. This seminal work mainly caters to students, teachers and researchers working in nuclear physics and engineering, but it is of invaluable interest to historians of physics too, since the material presented here is entirely novel.

Download or read book Intense Neutron Source facility written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Pulsed Neutron Application to Power Reactor Start up Procedures Quarterly Progress Report written by and published by . This book was released on 1962-07 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The purpose of this work is to develop a technique to use pulsed neutron sources to measure the shutdown of large, thermal power reactors. A theoretical investigation to identify an experimental observable is conducted" - Introduction.

Download or read book Present Status and Future Development of WNR written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Los Alamos Weapons Neutron Research/Proton Storage Ring complex will be a major United States facility for the study of condensed matter science, fundamental interaction physics, and nuclear physics. The experimental facilities, research programs, and a proposed advanced spallation facility are described. (GHT).

Download or read book A Proposal for a Long pulse Spallation Source at Los Alamos National Laboratory written by and published by . This book was released on 1995 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Los Alamos National Laboratory is proposing a new spallation neutron source that will provide the US with an internationally competitive facility for neutron science and technology that can be built in approximately three years for less than $100 million. The establishment of a 1-MW, long-pulse spallation source (LPSS) at the Los Alamos Neutron Science Center (LANSCE) will meet many of the present needs of scientists in the neutron scattering community and provide a significant boost to neutron research in the US. The new facility will support the development of a future, more intense spallation neutron source, that is planned by DOE's Office of Energy Research. Together with the existing short pulse spallation source (SPSS) at the Manual Lujan, Jr. Neutron Scattering Center (MLNSC) at Los Alamos, the new LPSS will provide US scientists with a complementary pair of high-performance neutron sources to rival the world's leading facilities in Europe.

Download or read book Neutron Physics For Nuclear Reactors Unpublished Writings By Enrico Fermi written by Salvatore Esposito and published by World Scientific. This book was released on 2010-06-04 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique volume gives an accurate and very detailed description of the functioning and operation of basic nuclear reactors, as emerging from yet unpublished papers by Nobel Laureate Enrico Fermi.In the first part, the entire course of lectures on Neutron Physics delivered by Fermi at Los Alamos is reported, according to the version made by Anthony P French. Here, the fundamental physical phenomena are described very clearly and comprehensively, giving the appropriate physics grounds for the functioning of nuclear piles. In the second part, all the patents issued by Fermi (and coworkers) on the functioning, construction and operation of several different kinds of nuclear reactors are reported. Here, the main engineering problems are encountered and solved by employing simple and practical methods, which are described in detail.This seminal work mainly caters to students, teachers and researchers working in nuclear physics and engineering, but it is of invaluable interest to historians of physics too, since the material presented here is entirely novel.

Download or read book Defense Basic and Industrial Research at the Los Alamos Neutron Science Center Proceedings written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Technological and Economic Future of Nuclear Power written by Reinhard Haas and published by Springer. This book was released on 2019-04-26 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book discusses the eroding economics of nuclear power for electricity generation as well as technical, legal, and political acceptance issues. The use of nuclear power for electricity generation is still a heavily disputed issue. Aside from technical risks, safety issues, and the unsolved problem of nuclear waste disposal, the economic performance is currently a major barrier. In recent years, the costs have skyrocketed especially in the European countries and North America. At the same time, the costs of alternatives such as photovoltaics and wind power have significantly decreased.

Download or read book Operational Status and Life Extension Plans for the Los Alamos Neutron Science Center LANSCE written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Los Alamos Neutron Science Center (LANSCE) accelerator and beam delivery complex generates the proton beams that serve three neutron production sources, a proton radiography facility and a medical and research isotope production facility. The recent operating history of the facility, including both achievements and challenges, will be reviewed. Plans for performance improvement will be discussed, together with the underlying drivers for the ongoing LANSCE Linac Risk Mitigation (LRM) project. The details of this latter project will also be discussed.

Download or read book Enabling NNSA and DOE Missions written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research and Development in Energy at the Los Alamos Scientific Laboratory written by Los Alamos Scientific Laboratory and published by . This book was released on 1975 with total page 110 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 Nuclear Fear written by Spencer R. WEART and published by Harvard University Press. This book was released on 2009-06-30 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our thinking is inhabited by images-images of sometimes curious and overwhelming power. The mushroom cloud, weird rays that can transform the flesh, the twilight world following a nuclear war, the white city of the future, the brilliant but mad scientist who plots to destroy the world-all these images and more relate to nuclear energy, but that is not their only common bond. Decades before the first atom bomb exploded, a web of symbols with surprising linkages was fully formed in the public mind. The strange kinship of these symbols can be traced back, not only to medieval symbolism, but still deeper into experiences common to all of us. This is a disturbing book: it shows that much of what we believe about nuclear energy is not based on facts, but on a complex tangle of imagery suffused with emotions and rooted in the distant past. Nuclear Fear is the first work to explore all the symbolism attached to nuclear bombs, and to civilian nuclear energy as well, employing the powerful tools of history as well as findings from psychology, sociology, and even anthropology. The story runs from the turn of the century to the present day, following the scientists and journalists, the filmmakers and novelists, the officials and politicians of many nations who shaped the way people think about nuclear devices. The author, a historian who also holds a Ph.D. in physics, has been able to separate genuine scientific knowledge about nuclear energy and radiation from the luxuriant mythology that obscures them. In revealing the history of nuclear imagery, Weart conveys the hopeful message that once we understand how this imagery has secretly influenced history and our own thinking, we can move on to a clearer view of the choices that confront our civilization. Table of Contents: Preface Part One: Years of Fantasy, 1902-1938 1. Radioactive Hopes White Cities of the Future Missionaries for Science The Meaning of Transmutation 2. Radioactive Fears Scientific Doomsdays The Dangerous Scientist Scientists and Weapons Debating the Scientist's Role 3. Radium: Elixir or Poison? The Elixir of Life Rays of Life Death Rays Radium as Medicine and Poison 4. The Secret, the Master, and the Monster Smashing Atoms The Fearful Master Monsters and Victims Real Scientists The Situation before Fission Part Two: Confronting Reality, 1939-1952 5. Where Earth and Heaven Meet Imaginary Bomb-Reactors Real Reactors and Safety Questions Planned Massacres "The Second Coming" 6. The News from Hiroshima Cliché Experts Hiroshima Itself Security through Control by Scientists? Security through Control over Scientists? 7. National Defenses Civil Defenses Bombs as a Psychological Weapon The Airmen Part Three: New Hopes and Horrors, 1953-1963 8. Atoms for Peace A Positive Alternative Atomic Propaganda Abroad Atomic Propaganda at Home 9. Good and Bad Atoms Magical Atoms Real Reactors The Core of Mistrust Tainted Authorities 10. The New Blasphemy Bombs as a Violation of Nature Radioactive Monsters Blaming Authorities 11. Death Dust Crusaders against Contamination A Few Facts Clean or Filthy Bombs? 12. The Imagination of Survival Visions of the End Survivors as Savages The Victory of the Victim The Great Thermonuclear Strategy Debate The World as Hiroshima 13. The Politics of Survival The Movement Attacking the Warriors Running for Shelter Cuban Catharsis Reasons for Silence Part Four: Suspect Technology, 1956-1986 14. Fail/Safe Unwanted Explosions: Bombs Unwanted Explosions: Reactors Advertising the Maximum Accident 15. Reactor Poisons and Promises Pollution from Reactors The Public Loses Interest The Nuplex versus the China Syndrome 16. The Debate Explodes The Fight against Antimissiles Sounding the Radiation Alarm Reactors: A Surrogate for Bombs? Environmentalists Step In 17. Energy Choices Alternative Energy Sources Real Reactor Risks "It's Political" The Reactor Wars 18. Civilization or Liberation? The Logic of Authority and Its Enemies Nature versus Culture Modes of Expression The Public's Image of Nuclear Power 19. The War Fear Revival: An Unfinished Chapter Part Five The Search for Renewal 20. The Modern Arcanum Despair and Denial Help from Heaven? Objects in the Skies Mushroom and Mandala 21. Artistic Transmutations The Interior Holocaust Rebirth from Despair Toward the Four-Gated City Conclusion A Personal Note Sources and Methodology Notes Index Reviews of this book: Nuclear Fear is a rich, layered journey back through our 'atomic history' to the primal memories of monstrous mutants and mad scientists. It is a deeply serious book but written in an accessible style that reveals the culture in which this fear emerges only to be suppressed and emerge again. --Ellen Goodman, Boston Globe Reviews of this book: A historical portrait of the quintessential modern nightmare...Weart shows in meticulous and fascinating detail how [the] ancient images of alchemy-fire, sexuality, Armageddon, gold, eternity and all the rest-immediately clustered around the new science of atomic physics...There is no question that the image of nuclear power reflects a complex and deeply disturbing portrait of what it means to be human. --Stephan Salisbury, Philadelphia Inquirer Reviews of this book: A detailed, probing study of American hopes, dreams and insecurities in the twentieth-century. Weart has a poet's acumen for sensing human feelings ... Nuclear Fear remains captivating as history...and original as an anthropological study of how nuclear power, like alchemy in medieval times, offers a convenient symbol for deeply-rooted human feelings. --Los Angeles Times Reviews of this book: Weart's tale boldly sweeps from the futuristic White City of the 1893 Chicago World's Fair and the discovery of radioactivity in 1896 through Hiroshima and Star Wars... (An] admirable call for synthesis of art and science in a true transmutation that takes us beyond nuclear fear. --H. Bruce Franklin, Science