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Spallation Neutron Source first of its kind to reach megawatt power
September 30, 2009The Department of Energy's Spallation Neutron Source (SNS), already the world's most powerful facility for pulsed neutron scattering science, is now the first pulsed spallation neutron source to break the one-megawatt barrier.
"Advances in the materials sciences are fundamental to the development of clean and sustainable energy technologies. In reaching this milestone of operating power, the Spallation Neutron Source is providing scientists with an unmatched resource for unlocking the secrets of materials at the molecular level," said Dr. William F. Brinkman, Director of DOE's Office of Science.
SNS operators at DOE's Oak Ridge National Laboratory pushed the controls past the megawatt mark on September 18 as the SNS ramped up for its latest operational run.
"The attainment of one megawatt in beam power symbolizes the advancement in analytical resources that are now available to the neutron scattering community through the SNS," said ORNL Director Thom Mason, who led the SNS project during its construction. "This is a great achievement not only for DOE and Oak Ridge National Laboratory, but for the entire community of science."
Before the SNS, the world's spallation neutron sources operated in the hundred-kilowatt range. The SNS actually became a world-record holder in August 2007 when it reached 160 kilowatts, earning it an entry in the Guinness Book of World Records as the world's most powerful pulsed spallation neutron source.
Beam power isn't merely a numbers game. A more powerful beam means more neutrons are spalled from SNS's mercury target. For the researcher, the difference in beam intensity is comparable to the ability to see with a car's headlights versus a flashlight. More neutrons also enhance scientific opportunities, including flexibility for smaller samples and for real-time studies at shorter time scales. For example, experiments will be possible that use just one pulse of neutrons to illuminate the dynamics of scientific processes.
Eventually, the SNS will reach its design power of 1.4 megawatts. The gradual increase of beam power has been an ongoing process since the SNS was completed and activated in late April 2006.
In the meantime, scientists have been performing cutting-edge experiments and materials analysis as its eventual suite of 25 instruments comes on line. As DOE Office of Science user facilities, the SNS and its companion facility, the High Flux Isotope Reactor, host researchers from around the world for neutron scattering experiments.
ORNL is managed by UT-Battelle for the Department of Energy.
Oak Ridge National Laboratory
"The attainment of one megawatt in beam power symbolizes the advancement in analytical resources that are now available to the neutron scattering community through the SNS," said ORNL Director Thom Mason, who led the SNS project during its construction. "This is a great achievement not only for DOE and Oak Ridge National Laboratory, but for the entire community of science."
Before the SNS, the world's spallation neutron sources operated in the hundred-kilowatt range. The SNS actually became a world-record holder in August 2007 when it reached 160 kilowatts, earning it an entry in the Guinness Book of World Records as the world's most powerful pulsed spallation neutron source.
Beam power isn't merely a numbers game. A more powerful beam means more neutrons are spalled from SNS's mercury target. For the researcher, the difference in beam intensity is comparable to the ability to see with a car's headlights versus a flashlight. More neutrons also enhance scientific opportunities, including flexibility for smaller samples and for real-time studies at shorter time scales. For example, experiments will be possible that use just one pulse of neutrons to illuminate the dynamics of scientific processes.
Eventually, the SNS will reach its design power of 1.4 megawatts. The gradual increase of beam power has been an ongoing process since the SNS was completed and activated in late April 2006.
In the meantime, scientists have been performing cutting-edge experiments and materials analysis as its eventual suite of 25 instruments comes on line. As DOE Office of Science user facilities, the SNS and its companion facility, the High Flux Isotope Reactor, host researchers from around the world for neutron scattering experiments.
ORNL is managed by UT-Battelle for the Department of Energy.
Oak Ridge National Laboratory
Spallation Neutron Current Events and Spallation Neutron News RSSSpallation Neutron Source sees first target replacement
Having outlasted all expectations of its service life, the original mercury target of the Spallation Neutron Source (SNS), the Department of Energy (DOE) Office of Science's record-setting neutron science facility at Oak Ridge National Laboratory, is being replaced for the first time.
Spallation Neutron Source gets initial go-ahead on second target
The U.S. Department of Energy has given its initial approval to begin plans for a second target station for the Spallation Neutron Source, expanding what is already the world's most powerful pulsed neutron scattering facility located at DOE's Oak Ridge National Laboratory.
New Instrument Puts New Spin on Superconductors
Researchers at the U.S. Department of Energy's Ames Laboratory are part of collaborative team that's used a brand new instrument at the DOE's Spallation Neutron Source to probe iron-arsenic compounds, the "hottest" new find in the race to explain and develop superconducting materials.
Spallation Neutron Source sends first neutrons to 'Big Bang' beam line
New analytical tools coming on line at the Spallation Neutron Source, the Department of Energy's state-of-the-art neutron science facility at Oak Ridge National Laboratory, include a beam line dedicated to nuclear physics studies.
Superconductivity can induce magnetism
When an electrical current passes through a wire it emanates heat - a principle that's found in toasters and incandescent light bulbs.
A world-leading UK science project switches on first neutrons
The UK's ISIS Second Target Station Project moved a major step closer to completion today when the first neutrons were created in the ISIS Second Target Station.
New understanding for superconductivity at high temperatures
An international research team has discovered that a magnetic field can interact with the electrons in a superconductor in ways never before observed.
Interacting protein theory awaits test from new neutron analysis tools
An international collaboration directed by an Oak Ridge National Laboratory researcher has performed the first-ever atomic-detail computer simulation of how proteins vibrate in a crystal.
Revamped, Renewed, Restarted: Oak Ridge High Flux Isotope reactor back on line
he research reactor at the Department of Energy's Oak Ridge National Laboratory is back in action and better than ever. After $70 million in renovations and more than a year of meticulous system checks, ORNL's High Flux Isotope Reactor was restarted this week, taken to 10 percent power, and reached its peak power of 85 megawatts Wednesday.
Collaborative study successfully applies neutrons to study hydrogen transfer in biological systems
An innovative collaboration among scientists at Los Alamos National Laboratory, Fox Chase Cancer Center and the University of Tennessee has successfully applied neutron diffraction to create a three-dimensional map of the structure of the enzyme D-xylose isomerase.
More Spallation Neutron Current Events and Spallation Neutron News Articles
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The Savannah River Accelerator Project and Complementary Spallation Neutron Sources: Proceedings of the Accelerator Production of Tritium Symposium, University ... South Carolina, Usa, May14-15, 1996 by Accelerator Production of Tritium Symposium (Author), F. T., III Avignone (Author), T. A. Gabriel (Author), F. T., III Avignone (Editor), Savannah River Accelerator Production of Tritium (Editor) Based on the proceedings of the Accelerator Production of Tritium Symposium, held at the University of South Carolina, Columbia, South Carolina, USA on May 14-15 1996. | |
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Beamline performance simulations for the fundamental neutron physics beamline at the Spallation Neutron Source.: An article from: Journal of Research of ... Institute of Standards and Technology by P.R. Huffman (Author), G.L. Greene (Author), R.R. Allen (Author), V. Cianciolo (Author), R.R. Huerto (Author), P. Koehler (Author), D. Desai (Author), R. Mahurin (Author), A. Yue (Author), G.R. Palmquist (Author), W.M. Snow (Author) This digital document is an article from Journal of Research of the National Institute of Standards and Technology, published by Thomson Gale on May 1, 2005. The length of the article is 3742 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser. Citation Details Title: Beamline performance simulations for the fundamental neutron physics beamline at the Spallation Neutron Source. Author: P.R. Huffman Publication: Journal of Research of the National Institute of Standards and Technology (Magazine/Journal) Date: May 1, 2005 Publisher: Thomson Gale Volume: 110 Issue: 3 Page:... | |
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Astrophysics, Symmetries, and Applied Physics at Spallation Neutron Sources by Paul E. Koehler (Editor), Christopher C. Gould (Editor), Robert C. Haight (Editor), Timothy E. Valentine (Editor) The spallation neutron source (SNS) being built at the Oak Ridge National Laboratory (ORNL) will be by far the highest flux pulsed source of epithermal neutrons in the world when it comes on line in 2006. Although the main thrust of the science programme at the SNS will be materials science, the facility could provide outstanding opportunities for research in nuclear astrophysics, fundamental symmetries, and applied nuclear physics. To review the current status of these fields and to begin to assemble the scientific case and the community of researchers for future experiments at the SNS, a workshop on "Astrophysics, Symmetries, and Applied Physics" was held in March 2002 at the ORNL. Over 60 scientists, representing 11 US and four foreign universities as well as many national laboratories... |
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The fundamental neutron physics beamline at the Spallation Neutron Source.: An article from: Journal of Research of the National Institute of Standards and Technology by Geoffrey Greene (Author), Vince Cianciolo (Author), Paul Koehler (Author), Richard Allen (Author), William Michael Snow (Author), Paul Huffman (Author), Chris Gould (Author), David Bowman (Author), Martin Cooper (Author), John Doyle (Author) This digital document is an article from Journal of Research of the National Institute of Standards and Technology, published by Thomson Gale on May 1, 2005. The length of the article is 1497 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser. Citation Details Title: The fundamental neutron physics beamline at the Spallation Neutron Source. Author: Geoffrey Greene Publication: Journal of Research of the National Institute of Standards and Technology (Magazine/Journal) Date: May 1, 2005 Publisher: Thomson Gale Volume: 110 Issue: 3 Page: 149(4) Distributed by Thomson... | |
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Studies of the Nuclear Processes of Proton Capture Photon Production and Spallation Neutron Emission With Advanced Experimental Techniques (Comprehensive Summaries of Uppsala Dissertations, 459) by Johan Thun (Author) | |
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Neutrino Physics at the Spallation Neutron Source by B. Zeitnitz (Author) | |
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Rationale for a spallation neutron source target system test facility at the 1-MW long-pulse spallation source by Walter F Sommer (Author) | |
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Department of Energy challenges exist in managing the Spallation Neutron Source Project : statement of Victor S. Rezendes, Director, Energy, Resources, ... (SuDoc GA 1.5/2:T-RCED-99-103) by Victor S. Rezendes (Author) | |
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Materials for Spallation Neutron Sources by M. S. Wechsler (Editor), L. K. Mansur (Editor), C. L. Snead (Editor), W. F. Sommer (Editor) The scope of this proceedings volume includes the selection and behaviour of materials for spallation neutron sources, such as those under construction or design for facilities for neutron scattering and diffraction research, accelerator transmutation of waste, acclerator production of tritium and accelerator-based conversion of plutonium. An emphasis is placed on the coverage of target and blanket components. Topics include: radiation effects, corrosion and compatibility, mechanical and physical properties, microstructural and dimensional changes, neutronics and system design. | |
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Pre-conceptual design and preliminary neutronic analysis of the proposed National Spallation Neutron Source (NSNS) by Jeffrey O Johnson (Author) |
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