SLAC National Accelerator Laboratory

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SLAC National Accelerator Laboratory articles

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Method assists biochemical research at X-ray lasers

Method assists biochemical research at X-ray lasers
Biological samples studied with intense X-rays at free-electron lasers are destroyed within nanoseconds after they are exposed. Because of this, the samples need to be continually refreshed to allow the many images needed for an experiment to be obtained. Conventional methods use jets that supply a continuous stream of samples, but this can be very wasteful as the X-rays only interact with a tiny fraction of the injected material.
28th February 2017

How light pulses can create channels that conduct electricity

How light pulses can create channels that conduct electricity
Theoretical physicists at the Department of Energy's SLAC National Accelerator Laboratory used computer simulations to show how special light pulses could create robust channels where electricity flows without resistance in an atomically thin semiconductor. If this approach is confirmed by experiments, it could open the door to a new way of creating and controlling this desirable property in a wider range of materials than is possible today.
6th January 2017

High-speed 'electron camera' films atomic nuclei

High-speed 'electron camera' films atomic nuclei
An ultrafast "electron camera" at the Department of Energy's SLAC National Accelerator Laboratory has made the first direct snapshots of atomic nuclei in molecules that are vibrating within millionths of a billionth of a second after being hit by a laser pulse. The method, called ultrafast electron diffraction (UED), could help scientists better understand the role of nuclear motions in light-driven processes that naturally occur on extremely fast timescales.
1st September 2016


Echo technique could make x-ray lasers more stable

Echo technique could make x-ray lasers more stable
Researchers from the Department of Energy's SLAC National Accelerator Laboratory and Shanghai Jiao Tong University in China have developed a method that could open up scientific avenues by making the light from powerful X-ray lasers much more stable and its colour more pure. The idea behind the technique is to "seed" X-ray lasers with regular lasers, whose light already has these qualities.
8th June 2016

LUX-ZEPLIN is an ultrasensitive 'eye' for dark matter

LUX-ZEPLIN is an ultrasensitive 'eye' for dark matter
Prototyping of an ultrasensitive "eye" for dark matter is making rapid progress at the Department of Energy's SLAC National Accelerator Laboratory: Researchers and engineers have installed a small-scale version of the future LUX-ZEPLIN (LZ) detector to test, develop and troubleshoot various aspects of its technology. When LZ goes online in early 2020 at the Sanford Underground Research Facility in South Dakota, hopes are that it will detect so-called weakly interacting massive particles, or WIMPs.
2nd June 2016

Boosting power of the world's brightest X-ray laser

Boosting power of the world's brightest X-ray laser
Construction begins on a major upgrade to a unique X-ray laser at the Department of Energy's SLAC National Accelerator Laboratory. The project will add a second X-ray laser beam that's 10,000 times brighter, on average, than the first one and fires 8,000 times faster, up to a million pulses per second. The project, known as LCLS-II, will greatly increase the power and capacity of SLAC's LCLS for experiments that sharpen our view of how nature works on the atomic level and on ultrafast timescales.
5th April 2016


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