Showing stories 51-75 out of 332 stories. <<<1 | 2 | 3 | 4 | 5 | 6 | 7>>>
4-Sep-2015 Fortifying computer chips for space travel
One of the most long-lived and active space-chip testing programs is at the Berkeley Lab. Since 1979, most American satellites and many major NASA projects including the Mars Rover Curiosity, the space shuttles, and the new Orion capsule, have had one or more electronic components go through Berkeley Lab's cyclotron.
3-Sep-2015 Researchers see 'spin current' in motion for the first time
Researchers at the Department of Energy's SLAC National Accelerator Laboratory have for the first time seen a spin current -- an inherent magnetic property common to all electrons -- as it travels across materials. The result, which revealed a surprising loss of current along the way, is an important step toward realizing a next-generation breed of electronics known as 'spintronics.'
1-Sep-2015 Time-lapse analysis offers new look at how cells repair DNA damage
Time-lapse imaging can make complicated processes easier to grasp. Berkeley Lab scientists are using a similar approach to study how cells repair DNA damage. Microscopy images are acquired about every thirty minutes over a span of up to two days, and the resulting sequence of images shows ever-changing hotspots inside cells where DNA is under repair.
31-Aug-2015 Q&A: Researchers explain a strange high-intensity result at SLAC's X-ray laser
At extremely high intensities, X-rays stop behaving like the ones in your doctor's office and begin interacting with matter in very different ways. This 'nonlinear' X-ray behavior can only be seen at X-ray free-electron lasers. Recent experiments at the Department of Energy's SLAC National Accelerator Laboratory have revealed a new, unexpected twist in that behavior that may be one for the textbooks and could change the way these powerful lasers probe matter.
21-Aug-2015 Brookhaven summer intern reveals the cutting edge of NSLS-II
This summer, DOE's Science Undergraduate Laboratory Internship program paired Bozeat with NSLS-II engineer Christopher Eng, who enlisted the student's help in designing the magnet assemblies that comprise NSLS-II's undulators -- devices that wiggle the electron beam to emit brighter X-rays.
20-Aug-2015 X-ray duo's research helps launch human trial for treatment of arsenic poisoning
Graham George and Ingrid Pickering, a husband and wife X-ray research team, have worked for decades to understand how contaminants in water and soil are taken up by the body and affect human health. Much of that research has taken place at the Stanford Synchrotron Radiation Lightsource (SSRL), a DOE Office of Science User Facility at SLAC National Accelerator Laboratory, where both are former staff scientists.
20-Aug-2015 Carbon number crunching
A booming economy and population led China to emerge in 2006 as the global leader in fossil-fuel carbon emissions, a distinction it still maintains. But exactly how much carbon China releases has been a topic of debate, with recent estimates varying by as much as 15 percent.
18-Aug-2015 Viral comparisons
An Oak Ridge National Laboratory team of comparative genomics and computational science researchers compared approximately 4,000 complete virus genomes downloaded from a public database known as GenBank. By compressing the sequence files, the team created a virus dendrogram that maps out the relationships among all the different virus families.
14-Aug-2015 The critical second: CMI's second year doubles research milestones
The Department of Energy's Critical Materials Institute, led by Ames Laboratory, has more than doubled its research accomplishments in its second year, bringing the total number of invention disclosures to 34. The CMI addresses possible of shortages in rare-earth and other materials necessary for clean energy technologies like wind turbines, electric vehicles, efficient lighting, advanced batteries, and other products used by Americans every day.
13-Aug-2015 The pressure is on
Researchers with Oak Ridge National Laboratory's Spallation Neutron Source have developed technology to squeeze materials with a million times the pressure of the earth's atmosphere while studying them with neutrons. When they bombard these materials with neutrons, the materials provide an unprecedented picture of the changing nature of matter under extreme pressure.
12-Aug-2015 Microscopic rake doubles efficiency of low-cost solar cells
Researchers from the Department of Energy's SLAC National Accelerator Laboratory and Stanford University have developed a manufacturing technique that could double the electricity output of inexpensive solar cells by using a microscopic rake when applying light-harvesting polymers.
11-Aug-2015 Eyes on the prize
Recently, the Department of Energy Office of Science's Nanoscale Science Research Centers at Argonne, Brookhaven, Lawrence Berkeley, Los Alamos/Sandia and Oak Ridge national laboratories jointly organized a workshop at Oak Ridge National Laboratory to discuss opportunities and challenges as imaging and data sciences merge. Those efforts will likely aid the Materials Genome Initiative, which aims to speed new materials to the global marketplace.
7-Aug-2015 New Brookhaven summer course introduces high school students to scientific computing
19 Long Island high school students completed a two-week workshop designed to teach them the basics of computer programming for scientific research. With this new program, the US Department of Energy's (DOE) Brookhaven National Laboratory looks to use its resources to begin to fill a gap in public science education while also building a pipeline to help identify and train the computer-literate researchers of tomorrow.
7-Aug-2015 Unique SLAC technology to power X-ray laser in South Korea
Accelerator technology pioneered at the Department of Energy's SLAC National Accelerator Laboratory is on its way to powering X-ray science in South Korea: On Aug. 6, the lab shipped one of its unique radio-frequency amplifiers -- an XL4 klystron -- to Pohang Accelerator Laboratory, where it will become a key component for the optimal performance of a new X-ray free-electron laser under construction.
5-Aug-2015 SLAC builds one of the world's fastest 'electron cameras'
A new scientific instrument at the Department of Energy's SLAC National Accelerator Laboratory promises to capture some of nature's speediest processes. It uses a method known as ultrafast electron diffraction (UED) and can reveal motions of electrons and atomic nuclei within molecules that take place in less than a tenth of a trillionth of a second -- information that will benefit groundbreaking research in materials science, chemistry and biology.
31-Jul-2015 Magnetism at nanoscale
As the demand grows for ever smaller, smarter electronics, so does the demand for understanding materials' behavior at ever smaller scales. Physicists at the US Department of Energy's Ames Laboratory are building a unique optical magnetometer to probe magnetism at the nano- and mesoscale.
28-Jul-2015 Rigors of the road: ORNL invention will support licensing and transport of spent nuclear fuel
With support from the US Nuclear Regulatory Commission, researchers at the Department of Energy's Oak Ridge National Laboratory have devised the Cyclic Integrated Reversible-bending Fatigue Tester. Combined with ongoing fuel transportation research, data from the CIRFT system will help facilitate cask designs and transportation protocols that ensure safe transportation of spent nuclear fuel.
27-Jul-2015 Brookhaven Lab summer school helps develop tomorrow's nuclear chemistry experts
For the past six weeks, 12 college students have had the opportunity to learn all that the US Department of Energy's (DOE) Brookhaven National Laboratory has to teach about a vital but often overlooked area of chemistry -- one that spans everything from nuclear reactors and the safe handling of nuclear material to hospital diagnostic tools and cutting-edge medical research.
22-Jul-2015 Whole lotta shakin' goin' on
It took decades for technology to catch up with the math David Smallwood worked out to control vibration table shakers. Smallwood, a retired Sandia National Laboratories researcher who consults at the labs, knew that shaking in all directions at once was the key to realistic parts testing. Now Sandia is putting the algorithms he developed more than 30 years ago to the test.
7-Jul-2015 Big PanDA and Titan merge to tackle torrent of LHC's full-energy collision data
With the successful restart of the Large Hadron Collider, now operating at nearly twice its former collision energy, comes an enormous increase in the volume of data physicists must sift through to search for new discoveries. Fortunately, a remarkable data-management tool developed by physicists at Brookhaven National Laboratory and the University of Texas at Arlington is evolving to meet the big-data challenge.
The Department of Energy's Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time.