News

Deep learning-based surrogate models outperform simulators and could hasten scientific discoveries

June 17, 2020- 
Surrogate models supported by neural networks can perform as well, and in some ways better, than computationally expensive simulators and could lead to new insights in complicated physics problems such as inertial confinement fusion (ICF), Lawrence Livermore National Laboratory (LLNL) scientists reported. In a paper published by the Proceedings of the National Academy of Sciences (PNAS)...

Experiments expose how powerful magnetic fields are generated in the aftermath of supernovae

June 16, 2020- 
In a paper recently published by Physical Review Letters, a team of researchers including scientists from Lawrence Livermore National Laboratory (LLNL) detail the first quantitative measurements of the magnetic field structure of plasma filamentation driven by the Weibel instability, using a novel optical Thompson scattering technique. These experiments study the processes responsible...

Lawrence Livermore National Security accepting applications for 2020 Community Gift Program

June 15, 2020- 
Lawrence Livermore National Security, LLC (LLNS) is now accepting applications for its annual Community Gift Program for 2020. Established in 2008, the LLNS Community Gift Program provides annual awards to support nonprofit organizations addressing STEAM (science, technology, engineering, arts and mathematics) education, community service and philanthropic needs of local and surrounding...

DOE announces COVID-19 innovation portal and assistance program

June 12, 2020- 
The Department of Energy’s (DOE’s) Office of Technology Transitions has announced new resources for innovators to combat COVID-19 through its Lab Partnering Service (LPS) and the COVID-19 Technical Assistance Program (CTAP). Supported by DOE’s Office of Technology Transitions (OTT), these initiatives will allow America’s innovators to readily access vital resources and connect and partner...

Modeling neuronal cultures on 'brain-on-a-chip' devices

June 12, 2020- 
For the past several years, Lawrence Livermore National Laboratory (LLNL) scientists and engineers have made significant progress in development of a three-dimensional “brain-on-a-chip” device capable of recording neural activity of human brain cell cultures grown outside the body. Now, LLNL researchers have a way to computationally model the activity and structures of neuronal communities...

Shock waves created at NIF mimic astrophysical particle accelerators powered by exploding stars

June 11, 2020- 
When stars explode as supernovae, they produce shock waves so powerful they can blast streams of particles called cosmic rays into the universe at nearly the speed of light. Yet the exact mechanisms behind these phenomena remained mysteries for decades. Now, in experiments at the National Ignition Facility (NIF), an international team of scientists from institutions including Lawrence...

#ShutdownSTEM an opportunity to reflect on ending racism

June 10, 2020- 
We are all still trying to process our way through recent, horrific examples of racial bias. Many opportunities to reflect on how these events are affecting us and shaping our future are in front of us. One such event is occurring today, June 10. Many scientists and engineers will participate in #ShutDownSTEM, a grassroots effort to better support black colleagues in academia and STEM...

Lab, BMI produce FDA-approved emergency ventilator

June 9, 2020- 
Following weeks of prototyping, Lawrence Livermore National Laboratory (LLNL) is partnering with private industry to mass-produce a simple mechanical ventilator developed for COVID-19 patients that has been authorized for emergency use by the U.S. Food and Drug Administration (FDA). LLNL and medical device startup company BioMedInnovations (BMI) have reached an agreement to develop a...

Multi-lab research to improve COVID-19 diagnostics

June 8, 2020- 
In response to the ongoing need for COVID-19 testing, Lawrence Livermore National Laboratory (LLNL) biologists are part of a collaborative research effort focused on improving the speed and accuracy of diagnostic tests, while enhancing the ability to adapt diagnostic tools as the virus evolves. Currently, the fastest way to identify known pathogens is by using a DNA-based detection...

Checking out iron under pressure

June 5, 2020- 
Iron is the most stable and heaviest chemical element produced by nucleosynthesis in stars, making it the most abundant heavy element in the universe and in the interiors of Earth and other rocky planets. To get a better understanding of the high-pressure behavior of iron, a Lawrence Livermore National Laboratory (LLNL) physicist and international collaborators discovered the...

Work resumes in support of stockpile modernization

June 3, 2020- 
The effort to resume hands-on work in support of stockpile modernization programs reached a major milestone May 7 with the successful execution of a focused experiment at the High Explosives Applications Facility (HEAF) at Lawrence Livermore National Laboratory (LLNL). The experiment is the first using high explosives at the Laboratory since Alameda County issued a shelter-in-place order...

Pinpointing the effects of nanoconfinement on water

June 2, 2020- 
Researchers have spent decades studying the properties of water and how they change when there are disruptions to their normal behavior. Research on the topic has a wide range of applications, from biochemical systems to water desalination. A team of scientists from Lawrence Livermore National Laboratory (LLNL), Argonne National Laboratory and the University of Chicago explored how the...

LLNS, North Wind sign supplemental labor agreement

June 1, 2020- 
North Wind Services (NWS), LLC, has been selected by Lawrence Livermore National Security (LLNS) as the supplemental labor provider for Lawrence Livermore National Laboratory (LLNL). LLNS manages the Laboratory for the U.S. Department of Energy/National Nuclear Security Administration. The transition from Akima Infrastructure Services (AIS), the current supplemental labor provider, to NWS...

Lab team studies calibrated AI and deep learning models to more reliably diagnose and treat disease

May 29, 2020- 
As artificial intelligence (AI) becomes increasingly used for critical applications such as diagnosing and treating diseases, predictions and results regarding medical care that practitioners and patients can trust will require more reliable deep learning models. In a recent preprint (available through Cornell University’s open access website arXiv), a team led by a Lawrence Livermore...

Lab activities increase, but remote work will continue

May 28, 2020- 
Since I spoke to you during my virtual all hands meeting, activity at the Laboratory has continued to increase, with approximately 25 percent of the Lab’s workforce now on site to support work prioritized by the National Nuclear Security Administration (NNSA), as well as some non-NNSA work supported by other sponsors. The scope of these efforts puts us in a new posture defined by NNSA as...

Simulations explain detonation properties in TATB

May 26, 2020- 
Two Lawrence Livermore National Laboratory (LLNL) scientists have discovered a new mechanism for ignition of high explosives that explains the unusual detonation properties of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB). The research will allow for systematic improvements to continuum mechanics models used to assess the performance and safety of the material accurately and reliably. Hi...

AI identifies change in microstructure in aging materials

May 26, 2020- 
Lawrence Livermore National Laboratory (LLNL) scientists have taken a step forward in the design of future materials with improved performance by analyzing its microstructure using AI. The work recently appeared online in the journal Computational Materials Science. Technological progress in materials science applications spanning electronic, biomedical, alternate energy, electrolyte...

Lab provides assistance in national swab shortage

May 21, 2020- 
In this era of COVID-19, tracking the disease adequately enough to allow state and local officials to lift shelter-in-place orders and return to a semblance of normalcy in the absence of a vaccine will require widespread testing, according to medical experts. However, such extensive testing efforts have been hampered due to a shortage of nasopharyngeal (NP) swabs, the preferred tool used by...

Membrane nanopore transport gets picky

May 20, 2020- 
Trying to determine how negatively charged ions squeeze through a carbon nanotube 20,000 times smaller than a human hair is no easy feat. Not only did Lawrence Livermore National Laboratory (LLNL) scientists do that but they found that those ions are unexpectedly picky depending on the anion (a negatively charged ion). The research appears in ACS Nano. Inner pores of carbon nanotubes...

COVID-19 research goes public through new portal

May 18, 2020- 
To help accelerate discovery of therapeutic antibodies or antiviral drugs for SARS-CoV-2, the virus that causes COVID-19, Lawrence Livermore National Laboratory (LLNL) has launched a searchable data portal to share its COVID-19 research with scientists worldwide and the general public. The portal houses a wealth of data LLNL scientists have gathered from their ongoing COVID-19 molecular...