Berkeley Lab
The Advanced Light Source is a Department of Energy-funded synchrotron facility that provides users from around the world access to the brightest beams of soft x-rays, together with hard x-rays and infrared, for scientific research and technology development in a wide range of disciplines.

News

ALS-U Project Receives CD-1 Approval

The ALS Upgrade (ALS-U) project has received federal approval (CD-1) to proceed with preliminary design, planning, and R&D work. This major upgrade will boost the brightness and coherent flux of ALS soft x-ray beams at least a hundredfold, enabling transformative science that cannot be performed on any existing or planned light source in the world.
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Clues to the Solar System’s Original “Bricks and Mortar”

In comet dust, researchers discovered composite organic-inorganic mineral grains that are likely to be the original “bricks and mortar” of the solar system. “Forensic” samples preserved from the birth of the solar system allow investigations into the nature of the atomic and molecular ancestry of the terrestrial planets and life on Earth. Read more »PPT-icon-35 PDF-icon-35

Unwinding a Quadruple Helix

The double helix is not the only structure formed by DNA and RNA. Guanine-rich DNA and RNA sequences can fold into quadruple-helix structures called G-quadruplexes. Recently, researchers visualized the unfolding of a G-quadruplex by a protein called DHX36, gaining valuable insight into a potential target for drug development. Read more »

Ordered Magnetic Patterns in a Disordered Magnetic Material

Scientists have confirmed the presence of chirality, or handedness, in nanometers-thick samples of amorphous (noncrystalline) multilayer materials. The chirality—which potentially could be exploited to transmit and store data in a new way—was observed in the domain walls between neighboring regions of opposite spin. Read more »

Pupa Gilbert to Receive the 2018 Shirley Award

Pupa Gilbert, professor of physics at the University of Wisconsin at Madison, is the 2018 recipient of the David A. Shirley Award for Outstanding Scientific Achievement at the ALS, “for her development of polarization-dependent imaging contrast mapping to image the orientation of carbonate nanocrystals in marine biominerals.” Read more »

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