Experiments shed light on pressure-driven ionization in giant planets and stars

Scientists have conducted laboratory experiments at Lawrence Livermore National Laboratory (LLNL) that provide new insights on the complex process of pressure-driven ionization in giant planets and stars. Their research, published today in Nature, unveils the material properties and behavior of matter under extreme compression, offering important implications for astrophysics and nuclear...

Igniting the future: Hundreds gather to celebrate historic fusion achievement

On a day certain to rank in the upper echelon of Lawrence Livermore National Laboratory’s historical milestones, Department of Energy (DOE) and National Nuclear Security Administration (NNSA) officials, members of Congress, past Lab directors, employees and partners gathered on May 8 to celebrate the Lab’s 2022 fusion ignition achievement. Even a light shower couldn’t dampen the...

NIF sustainment: Ensuring the next 20 years of progress

Part 9 in a series of articles describing the elements of Lawrence Livermore National Laboratory's fusion breakthrough. Having blazed the path to fusion ignition at the National Ignition Facility (NIF), Lawrence Livermore National Laboratory (LLNL) researchers and their collaborators are now making plans for sustained, and even higher, nuclear yields to enable and expand applications for...

NIF and JLF user groups look beyond ignition to bright possibilities in science

Attendees at this year’s National Ignition Facility (NIF) and Jupiter Laser Facility (JLF) User Groups Meeting celebrated Lawrence Livermore National Laboratory's (LLNL) recent fusion ignition breakthrough at the National Ignition Facility, but also kept their focus on looking ahead to a bright future of high energy density (HED) science research. The forward-thinking discussions included...

Krell Institute honors Ma with Corones Award

The Krell Institute, a nonprofit organization serving the scientific and educational communities, has awarded Lawrence Livermore National Laboratory (LLNL) physicist Tammy Ma with its 2023 James Corones Award Leadership, Community Building and Communication. The award, named for the institute’s founder, recognizes mid-career scientists and engineers who are making an impact on their...

Target evolution is a key to LLNL's continued success

Part 8 in a series of articles describing the elements of Lawrence Livermore National Laboratory's fusion breakthrough. The intricate, delicate targets used in Lawrence Livermore National Laboratory (LLNL)’s National Ignition Facility (NIF) experiments are marvels of design, engineering and precise manufacturing. “We’ve been working over the last 16 years on continuously improving the...

Lab scientist wins Springer Thesis Award

Elizabeth Grace, the High Energy Density Science (HEDS) Center Fellow at Lawrence Livermore National Laboratory (LLNL), has won a 2023 Springer Thesis Award for her work in short-pulse laser physics. “I am very honored to receive this award from Springer Theses, and I look forward to publication,” Grace said. Her thesis will be published in a book series: Springer Theses: Recognising...

LLNL’s Annie Kritcher named to TIME100 list of the 100 most influential people in the world

Time has named Lawrence Livermore National Laboratory (LLNL) design physicist Andrea “Annie” Kritcher to its annual list of the 100 most influential people in the world. The TIME100, now in its 20th year, recognizes the “impact, innovation and achievement of the world’s most influential individuals.”  Kritcher is recognized for her role as the principal designer for the December 2022...

Diagnostics were crucial to LLNL's historic ignition shot

Part 7 in a series of articles describing the elements of Lawrence Livermore National Laboratory's fusion breakthrough. Diagnostics — specialized, state-of-the-art measuring instruments — played an essential role in LLNL's Dec. 5, 2022, fusion ignition milestone. The data collected from NIF diagnostics were “really critical for our progress,” said Arthur Pak, team lead for stagnation...

Computing codes, simulations helped make ignition possible

Part 6 in a series of articles describing the elements of Lawrence Livermore National Laboratory's fusion breakthrough. For Lawrence Livermore National Laboratory (LLNL) physicist George Zimmerman, and for the hundreds of physicists, computer scientists and code developers who have worked on fusion for decades, computer simulations have been inexorably tied to the quest for ignition. Ha...

Alison Christopherson, Art Pak elected NAS Kavli fellows

Lawrence Livermore National Laboratory (LLNL) staff scientists Alison Christopherson and Art Pak have been elected Kavli fellows of the U.S. National Academy of Sciences (NAS). As new Kavli fellows, they participated in NAS’ annual Kavli Frontiers of Science U.S. symposium, which brings together outstanding young scientists to discuss exciting advances and opportunities in a broad range...

NIF’s optics meet the demands of increased laser energy

Part 5 in a series of articles describing the elements of Lawrence Livermore National Laboratory's fusion breakthrough. If Lawrence Livermore National Laboratory (LLNL)’s National Ignition Facility (NIF) were a race car, it would run at the redline most of the time. “NIF is the only laser system that intentionally operates above the laser damage growth threshold,” said Tayyab Suratwala...

Laser focused: Power and finesse drove fusion ignition success

Fourth in a series of articles describing the elements of Lawrence Livermore National Laboratory's fusion breakthrough. To achieve fusion ignition on Dec. 5, 2022, the National Ignition Facility (NIF)’s laser system needed to operate flawlessly at both ends of the performance spectrum, delivering immense energies while controlling the energy balance across all 192 laser beams with...

National Academies release report on high energy density science with LLNL contributions

The National Academies of Sciences, Engineering, and Medicine released a report, Fundamental Research in High Energy Density Science, which identifies key challenges and science questions for the field of High Energy Density (HED) science for the coming decade and proposes ways to address them. The report follows a year-and-a-half-long consensus study by a committee of 13 experts with...

Computational Engineering is key to ignition success

In a room illuminated by blinking lights and glowing monitors, more than 2,000 synchronized computers are triggered to run 5 million lines of code. The intricate code language is responsible for aligning and firing 192 laser beams — and carrying some 800 channels of target diagnostic data — efficiently and reliably several times a day. This isn’t a scene from a science fiction movie: it’s the...

Designing for Ignition: Precise changes yield historic results

Second in a series of articles describing the elements of Lawrence Livermore National Laboratory's fusion breakthrough. The National Ignition Facility (NIF) is the world’s biggest laser — three footballs fields could fit inside — but it’s what happened inside a capsule the size of a peppercorn that made scientific history on Dec. 5, 2022. The NIF experiment that produced fusion ignition...

Star Power: Blazing the path to fusion ignition

First in a series of articles describing the elements of Lawrence Livermore National Laboratory's fusion breakthrough. It was the middle of the night on Dec. 5, 2022, and anticipation was building among the handful of researchers and technicians in the National Ignition Facility (NIF) control room. A set of pre-shot simulations had predicted a slightly better than 50-50 chance that the...

NIF’s advances make Summer Scholar Program a coveted internship

Lawrence Livermore National Laboratory’s (LLNL) National Ignition Facility’s (NIF) recent scientific advances, including the achievement of fusion ignition in December, have increased interest among aspiring young scientists for the NIF&PS Summer Scholar Program. “That’s kind of the cool thing about this past year,” said Patrick Poole, the program director. “We had so many excited students...

Ignition gives U.S. ‘unique opportunity’ to lead world’s IFE research

Lawrence Livermore National Laboratory (LLNL)’s historic achievement of fusion ignition Dec. 5 at the National Ignition Facility (NIF) positions the United States with a “unique opportunity” to further lead the world scientific community’s pursuit of developing fusion as a future source of clean energy, according to a newly released report. Capitalizing on that opportunity will require a...

Lawrence Livermore National Laboratory achieves fusion ignition

The U.S. Department of Energy (DOE) and DOE’s National Nuclear Security Administration (NNSA) today (Dec. 13) announced the achievement of fusion ignition at Lawrence Livermore National Laboratory (LLNL) — a major scientific breakthrough decades in the making that will pave the way for advancements in national defense and the future of clean power. On Dec. 5, a team at LLNL’s National...