The first step in many light-driven chemical reactions, like the ones that power photosynthesis and human vision, is a shift in the arrangement of a molecule's electrons as they absorb the light's energy. This subtle rearrangement ...
Condensed Matter
May 1, 2020
2
2946
Each year, researchers from around the world visit the Department of Energy's SLAC National Accelerator Laboratory to conduct hundreds of experiments in chemistry, materials science, biology and energy research at the Linac ...
General Physics
Apr 29, 2020
0
315
A team of scientists has come up with a way to improve electron bunches and produce brighter X-ray beams: Put a ring on them. The team, which includes researchers from the Department of Energy's SLAC National Accelerator ...
General Physics
Apr 27, 2020
0
68
One of the great advantages of X-ray free-electron lasers like the one at the Department of Energy's SLAC National Accelerator Laboratory is that they allow researchers to determine the structure of biological molecules in ...
Optics & Photonics
Apr 16, 2020
0
56
High-speed "electron cameras" can detect tiny molecular movements in a material by scattering a powerful beam of electrons off a sample. Until recently, researchers had only used this technique to study gases and solids. ...
General Physics
Apr 10, 2020
0
245
Just as the sun has planets and the planets have moons, our galaxy has satellite galaxies, and some of those might have smaller satellite galaxies of their own. To wit, the Large Magellanic Cloud (LMC), a relatively large ...
Astronomy
Apr 6, 2020
19
2414
One way to change the properties of a material is to stretch it just a wee bit, so its atoms are farther apart but the bonds between them don't break. This extra distance affects the behavior of electrons, which determine ...
General Physics
Apr 2, 2020
0
144
Researchers from the Department of Energy's SLAC National Accelerator Laboratory have discovered a strange new feature of a protein that's thought to be important in the development of tuberculosis: The protein contains a ...
Molecular & Computational biology
Mar 25, 2020
0
530
Over the past few years, scientists have developed amazing tools—"cameras" that use X-rays or electrons instead of ordinary light ¬- to take rapid-fire snapshots of molecules in motion and string them into molecular movies.
General Physics
Mar 18, 2020
0
246
Researchers from the Department of Energy's SLAC National Accelerator Laboratory have made a promising new advance for the lab's high-speed "electron camera" that could allow them to "film" tiny, ultrafast motions of protons ...
Optics & Photonics
Mar 6, 2020
0
249
