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America Regains Leadership With World Record
Oak Ridge TN (SPX) Sep 05, 2007 The Spallation Neutron Source, the Department of Energy's $1.4 billion research facility at Oak Ridge National Laboratory, has established a new record as the world's most powerful accelerator based source of neutrons for scientific research. The SNS surpassed the previous record of 160 kilowatts for beam power, held by the United Kingdom's ISIS facility, while operating at 183 kilowatts. As the SNS ramps up toward an eventual 1.4 megawatts of power, the beams will produce up to 10 times more neutrons than any existing pulsed neutron source. A trio of Tennessee lawmakers--Sen. Lamar Alexander (R-Maryville), Rep. Bart Gordon (D-Murfreesboro) and Rep. Zach Wamp (R-Chattanooga)--joined ORNL Director Thom Mason and laboratory staff in Oak Ridge for the announcement of the record. Mason said ORNL's world record "will provide scientists with an unprecedented ability to analyze and understand the molecular structures and behaviors responsible for the properties of advanced materials. As we learn how to make materials stronger, lighter, or cheaper, we can help American industry develop an unlimited variety of new products." As examples, Mason said new materials might make it possible to design lighter airplanes that fly with less fuel or bridges that are more resistant to stress and fracture. Pat Dehmer, the Department of Energy's Associate Director of Science for Basic Energy Sciences, called the new record "another remarkable accomplishment by the SNS team, which completed the construction of this world-leading facility just over one year ago on time and within budget." Senator Alexander hailed the SNS's new record as an example of the opportunities that may come from the America COMPETES (Creating Opportunities to Meaningfully Promote Excellence in Technology, Education and Science) Act, a bipartisan measure recently signed into law by President Bush. Today's announcement also supports President Bush's American Competitiveness Initiative announced in 2006, which supports investments in the next generation of scientists, engineers and educators to sustain America's role at the forefront of science and innovation. For more on the American Competitiveness Initiative go here. The field of neutron scattering science is one example of a technological edge lost and regained. Neutron scattering was developed in Oak Ridge in the wake of the Manhattan Project. In the following decades, larger and more powerful neutron sources were built in Europe and Asia, often forcing U.S. researchers to go abroad to perform their experiments. The SNS's re-establishment of the United States' leadership in neutron scattering means that now many of the world's top researchers will be coming to Tennessee to conduct groundbreaking research. Related Links Understanding Time and Space
Quantum Analog Of Ulam's Conjecture Can Guide Molecules And Reactions
Champaign IL (SPX) Aug 10, 2007Like navigating spacecraft through the solar system by means of gravity and small propulsive bursts, researchers can guide atoms, molecules and chemical reactions by utilizing the forces that bind nuclei and electrons into molecules (analogous to gravity) and by using light for propulsion. But, knowing the minimal amount of light required, and how that amount changes with the complexity of the molecule, has been a problem. |
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