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X-ray studies at SLAC facilities help scientists understand the fundamental workings of nature by probing matter in atomic detail.

atoms forming a tentative bond
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Photon science, a spin-off of particle physics, has returned to its roots for help developing better, faster detectors.

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SLAC-invented Etching Process Builds Custom Nanostructures for X-ray Optics

Image - This colorized scanning electron microscope image shows a top-down view of a spiral zone plate, an X-ray optical device, created using a chemical etching technique developed at SLAC. (Chieh Chang, Anne Sakdinawat)
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SLAC Experiment Provides New Insight About How Electrons Move Across Molecules

Researchers used SLAC's LCLS X-ray laser to stimulate and measure the electron-transfer process inside a severed methyl iodide molecule.
News Release

Using high-brilliance X-rays, researchers track the process that fuel cells use to produce electricity, knowledge that will help make large-scale

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Grad Students and Postdocs Get a Crash Course in Using X-ray Lasers

Archana Raja, a graduate student at Columbia University, explains her group’s poster presentation at SLAC’s Ultrafast X-ray Summer Seminar.
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Exploding Soccer Ball-shaped Molecules Will Help Biological Studies

Image - Buckyballs, molecules composed of 60 carbon atoms, bust apart as they are struck by intense X-ray pulses at SLAC's Linac Coherent Light Source. (Greg Stewart/SLAC)
News Release

SLAC Research Reveals Rapid DNA Changes that Act as Molecular Sunscreen

Illustration showing a thymine molecule, DNA helix and the sun.
Illustration

X-ray laser pulses probe water droplets like these to discover water’s hidden (and sometimes bizarre) properties. 

X-ray laser pulses probe water droplets like these to discover water’s hidden (and sometimes bizarre) properties.
News Release

Scientists at the Department of Energy's SLAC National Accelerator Laboratory have made the first structural observations of liquid water at temperatures down to minus...

Artist's concept - see caption
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A sense of adventure and intellectual rigor led PULSE chemistry professor Kelly Gaffney to a successful career in science.

Image - PULSE chemistry professor Kelly Gaffney. (Brad Plummer/SLAC)
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Even in their infancy, X-ray lasers such as SLAC's Linac Coherent Light Source are notching a list of important discoveries, and a special issue...

Image - This illustration represents data derived from 175,000 X-ray diffraction patterns of Trapanosoma brucei cathepsin B, a protein relevant to African sleeping sickness, measured with X-ray pulses at SLAC's Linac Coherent Light Source. (CFEL)
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SLAC scientists have found a new way to produce bright pulses of light from accelerated electrons that could shrink "light source" technology used around...

A PhD student inspects the microwave undulator.