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Highest Energies Yet From Laser Wakefield Acceleration: From Zero To A Billion Electron Volts ...

10-05-2006 · ScienceDaily

In a precedent-shattering demonstration of the potential of laser wakefield acceleration, scientists at the Department of Energy's Lawrence Berkeley National Laboratory, working with colleagues at the University of Oxford, have accelerated electron beams to energies exceeding a billion electron volts (1 GeV) in a distance of just 3.3 centimeters. Billion-electron-volt beams from laser wakefield accelerators open the way to very compact high-energy experiments and superbright free-electron lasers.

Keywords: highest, energies, yet, laser, wakefield, acceleration, electron, volts, energy, volt

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Early fire risk for mountains near Los Angeles
07-01-2007 · EurekAlert!
Researchers at the University of Utah and elsewhere developed a new way to predict when vegetation dries to the point it is most vulnerable to large fires in the Santa Monica Mountains near Los Angeles. This year's forecast says the highest-risk fire period will begin July 13 -- weeks earlier than usual. Yet the study also shows that global warming hasn't caused any apparent long-term trend toward early fire seasons in the Santa Monicas.
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CERN confident of LHC start-up in 2007
12-15-2006 · EurekAlert!
Delegates attending the 140th meeting of CERN Council today heard a confident report from the laboratory about the scheduled start-up of the world's highest energy particle accelerator, the Large Hadron Collier (LHC), in 2007.
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Auger Observatory links highest-energy cosmic rays with violent black holes
11-08-2007 · EurekAlert!
Scientists of the Pierre Auger Collaboration, which includes New York University physics professor Glennys R. Farrar, have concluded that active galactic nuclei are the most likely candidate for the source of the highest-energy cosmic rays that hit Earth. Using the Pierre Auger Observatory in Argentina, a team of scientists from 17 countries found that the sources of the highest-energy particles are nearby galaxies that have active nuclei in their centers.
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Dark energy may be vacuum
01-16-2007 · EurekAlert!
Researchers at the University of Copenhagen's Dark Cosmology Centre at the Niels Bohr Institute have brought us one step closer to understanding what the universe is made of. The new data shows that vacuum energy is the most likely cause and the expansion history of the universe can be explained by simply adding this constant background of acceleration into the normal theory of gravity.
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Researchers Observe Superradiance in a Free Electron Laser
01-19-2007 · Brookhaven National Laboratory
BNL researchers have generated extremely short light pulses using a new technique that could be used in the next generation of light source facilities around the world to catch molecules and atoms in action. The team's findings describe the use of a laser to control the pulse duration of light from a free electron laser.
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Lasers Shine Light on Chemical Reactions
11-22-2006 · Brookhaven National Laboratory
Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have been using a high-resolution laser technique to learn how molecules absorb light and fall apart during photodissociation reactions - chemical decomposition reactions triggered by light. Studying the atomic-level details of such reactions allows scientists to test and refine theories of chemical reactions, and may help them in their quest to use light to control reaction outcomes.
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UGA study reveals function of ubiquitous yet poorly understood microorganisms
05-23-2007 · EurekAlert!
A new study led by University of Georgia researchers and announced on Wednesday at the American Society for Microbiology meeting in Toronto finds that crenarchaeota, one of the most common groups of archaea and a group that includes members that live in hot springs, use ammonia as their energy source. Such a metabolic mode has not been found in any of the other known high-temperature archaea.
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Auger Observatory closes in on mystery, links highest-energy cosmic rays with violent black holes
11-08-2007 · EurekAlert!
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New accelerator technique doubles particle energy in just one meter
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