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Primeur weekly 2018-03-26

Quantum computing

Physicists reveal material for high-speed quantum internet ...

Focus on Europe

TUM junior scientist wins prestigious award for Computational Studies of Surface Catalytic Processes ...

Cosmologists create largest simulation of galaxy formation and break their own record ...

GigaSpaces triples annual revenue in France, building on strong global 2017 results ...

Atos and GENCI launch the Atos Joseph Fourier Award 2018 to accelerate research and innovation in numerical simulation, artificial intelligence and quantum computing ...

Middleware

Cavium Collaborates with Microsoft to demonstrate ThunderX2 platform compliant with Microsoft's Project Olympus specifications ...

Hardware

Pioneers of computer architecture receive ACM Turing Award ...

Mellanox's advanced Ethernet solutions selected to connect the Tel-Aviv Stock Exchange network infrastructure ...

GIGABYTE announces ThunderXStation: Industry's first Armv8 workstation based on Cavium's ThunderX2 processor ...

Cavium announces Packet Trakker: A programmable network telemetry suite ...

Applications

Los Alamos releases file index product to software community ...

NERSC supercomputers help researchers create reference catalogue for rumen microbiome ...

Major AI breakthrough by Optalysys demonstrating how its patented Optical Processing Technology performs deep learning at the speed of light ...

NVIDIA RTX technology realizes dream of real-time cinematic rendering ...

Batteries out of thin air ...

New method manages and stores data from millions of nerve cells - in real time ...

Groundbreaking research results in artificial intelligence ...

Taming chaos: Calculating probability in complex systems ...

Physicists made crystal lattice from polaritons ...

Golden touch: Next-gen optical disk to solve data storage challenge ...

COSMIC impact: Next-gen X-ray microscopy platform now operational ...

The Cloud

Mellanox simplifies hybrid Cloud connectivity between enterprises and Microsoft Azure ...

Cavium Technologies power end-to-end NVMe over Fabrics solutions ...

COSMIC impact: Next-gen X-ray microscopy platform now operational


The researchers from left to right: Advanced Light Source scientists Tony Warwick, Sujoy Roy, and David Shapiro at the COSMIC beamline. Credit: Lori Tamura/Berkeley Lab.
21 Mar 2018 Berkeley - A next-generation X-ray beamline now operating at the Department of Energy's Lawrence Berkeley National Laboratory brings together a unique set of capabilities to measure the properties of materials at the nanoscale.

Called COSMIC, for Coherent Scattering and Microscopy, this X-ray beamline at 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.

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.

A study published earlier this month in the journalNature 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 3D. 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", stated 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.

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", David Shapiro stated. Ptychography achieves spatial resolution finer than the X-ray spot size by phase retrieval from coherent diffraction data, and "the ALS has done this with world-record spatial resolution in two and now three dimensions", he added.

The ptychographic tomography technique that researchers used in this latest study allowed them to view the chemical states within individual nanoparticles. Young-Sang Yu, lead author of the study and an ESG scientist, stated: "We looked at a piece of a battery cathode in 3D with a resolution that was unprecedented for X-rays. This provides new insight into battery performance both at the single-particle level and across statistically significant portions of a battery cathode."

COSMIC is focused on a range of "soft" or low-energy X-rays that are particularly well-suited for analysis of chemical composition within materials

Ptychographic tomography can be particularly useful for looking at cellular components as well as batteries or other chemically diverse materials in extreme detail. David Shapiro said that the X-ray beam at COSMIC is focused to a spot about 50 nanometers (billionths of a meter) in diameter; however, ptychography can enhance the spatial resolution routinely by a factor of 10 or more. The current work was performed with a 120-nanometer beam that achieved a 3D resolution of about 11 nanometers.

COSMIC's X-ray beam is also brighter than the ALS beamline that was used to test its instrumentation, and it will become even brighter once ALS-U is complete. This brightness can translate to an even higher nanoscale resolution, and can also enable far more precision in time-dependent experiments.

Making efficient use of this brightness requires fast detectors, which are developed by the ALS detector group. The current detector can operate at a data rate of up to 400 megabytes per second and can now generate a few terabytes of data per day - enough to store about 500 to 1,000 feature-length movies. Next-generation detectors, to be tested shortly, will produce data 100 times faster.

"We are expecting to be the most data-intensive beamline at the ALS, and an important component of COSMIC is the development of advanced mathematics and computation able to quickly reconstruct information from the data as it is collected", David Shapiro stated.

To develop these tools COSMIC coupled with CAMERA, which was created to bring state-of-the-art mathematics and computing to DOE scientific facilities.

CAMERA Director James Sethian stated: "Building real-time advanced algorithms and the high-performance ptychographic reconstruction code for COSMIC has been a highly successful multiyear effort between mathematicians, computer scientists, software engineers, software experts, and beamline scientists."

The code the team developed to improve ptychographic imaging at COSMIC, dubbed SHARP, is now available to all light sources across the DOE complex. For COSMIC, the SHARP code runs on a dedicated graphics processing unit (GPU) cluster managed by Berkeley Lab's High Performance Computing Services.

Besides ptychography, COSMIC is also equipped for experiments that use X-ray photon correlation spectroscopy, or XPCS, a technique that is useful for studying fluctuations in materials associated with exotic magnetic and electronic properties.

COSMIC enables scientists to see such fluctuations occurring in milliseconds, or thousandths of a second, compared to time increments of multiple seconds or longer at predecessor beamlines. A new COSMIC endstation with applied magnetic field and cryogenic capabilities is now being built, with early testing set to begin this summer.

Scientists have already used COSMIC's imaging capabilities to explore a range of nanomaterials, battery anode and cathode materials, cements, glasses, and magnetic thin films, David Shapiro said.

"We're still in the mode of learning and tuning, but the performance is fantastic so far", he stated. He credited the ALS crew, led by ESG scientist Tony Warwick, for working quickly to bring COSMIC up to speed. "It's pretty remarkable to get to such high performance in such a short amount of time."

Source: DOE/Lawrence Berkeley National Laboratory

Back to Table of contents

Primeur weekly 2018-03-26

Quantum computing

Physicists reveal material for high-speed quantum internet ...

Focus on Europe

TUM junior scientist wins prestigious award for Computational Studies of Surface Catalytic Processes ...

Cosmologists create largest simulation of galaxy formation and break their own record ...

GigaSpaces triples annual revenue in France, building on strong global 2017 results ...

Atos and GENCI launch the Atos Joseph Fourier Award 2018 to accelerate research and innovation in numerical simulation, artificial intelligence and quantum computing ...

Middleware

Cavium Collaborates with Microsoft to demonstrate ThunderX2 platform compliant with Microsoft's Project Olympus specifications ...

Hardware

Pioneers of computer architecture receive ACM Turing Award ...

Mellanox's advanced Ethernet solutions selected to connect the Tel-Aviv Stock Exchange network infrastructure ...

GIGABYTE announces ThunderXStation: Industry's first Armv8 workstation based on Cavium's ThunderX2 processor ...

Cavium announces Packet Trakker: A programmable network telemetry suite ...

Applications

Los Alamos releases file index product to software community ...

NERSC supercomputers help researchers create reference catalogue for rumen microbiome ...

Major AI breakthrough by Optalysys demonstrating how its patented Optical Processing Technology performs deep learning at the speed of light ...

NVIDIA RTX technology realizes dream of real-time cinematic rendering ...

Batteries out of thin air ...

New method manages and stores data from millions of nerve cells - in real time ...

Groundbreaking research results in artificial intelligence ...

Taming chaos: Calculating probability in complex systems ...

Physicists made crystal lattice from polaritons ...

Golden touch: Next-gen optical disk to solve data storage challenge ...

COSMIC impact: Next-gen X-ray microscopy platform now operational ...

The Cloud

Mellanox simplifies hybrid Cloud connectivity between enterprises and Microsoft Azure ...

Cavium Technologies power end-to-end NVMe over Fabrics solutions ...