Next-gen X-ray microscopy platform now operational

ScienceDaily | 3/21/2018 | Staff
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Called COSMIC, for Coherent Scattering and Microscopy, this X-ray beamline at Berkeley Lab's Berkeley Lab's Advanced Light Source (ALS) allows scientists to probe working batteries and other active chemical reactions, and to reveal new details about magnetism and correlated electronic materials.

COSMIC has two branches that focus on different types of X-ray experiments: one for X-ray imaging experiments and one for scattering experiments. In both cases, X-rays interact with a sample and are measured in a way that provides, structural, chemical, electronic, or magnetic information about samples.

Beamline - Bridge - ALS - Upgrade - ALS-U

The beamline is also intended as an important technological bridge toward the planned ALS upgrade, dubbed ALS-U , that would maximize its capabilities.

Now, after a first-year ramp-up during which staff tested and tuned its components, the scientific results from its earliest experiments are expected to get published in journals later this year.

Study - Month - Nature - Communications - Work

A study published earlier this month in the journal Nature Communications, based primarily on work at a related ALS beamline, successfully demonstrated a technique known as ptychographic computed tomography that mapped the location of reactions inside lithium-ion batteries in 3-D. That experiment tested the instrumentation that is now permanently installed at the COSMIC imaging facility.

"This scientific result came out of the R&D effort leading up to COSMIC," said David Shapiro, a staff scientist in the Experimental Systems Group (ESG) at Berkeley Lab's ALS and the lead scientist for COSMIC's microscopy experiments.

Result - ALS - Investments - R - D

That result was made possible by ALS investments in R&D, and collaborations with the University of Illinois at Chicago and with Berkeley Lab's Center for Advanced Mathematics for Energy Research Applications (CAMERA), he noted.

"We aim to provide an entirely new class of tools for the materials sciences, as well as for environmental and life sciences," Shapiro said. Ptychography achieves spatial resolution finer than the X-ray spot size by phase retrieval from coherent diffraction data,...
(Excerpt) Read more at: ScienceDaily
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