Scientists explore use of 3D printing to speed up target production for testing material strength

Oct. 20, 2016- 
Advanced 3D printing promises to redefine manufacturing in critical industries such as aerospace, transportation and defense, and now, Lawrence Livermore National Laboratory is exploring the use of 3D printing to achieve unprecedented flexibility in producing "on-demand" targets for testing how materials behave under extreme conditions. Through an additive manufacturing process called two...

Putting one foot in front of the other

Oct. 4, 2016- 
In just under the time it would take to fly around the world two times -- 85 hours -- Justin Galbraith ran and hiked more than 200 miles to cross the finish line of the Tahoe 200 Endurance Run. Fighting blisters on every toe, temperatures ranging from the 40s to the 80s and sleeping only three hours, Galbraith completed the course that follows the Tahoe Rim Trail and has more than 40,000 feet...

National Ignition Facility tops 400 shots in FY16

Sept. 26, 2016- 
LIVERMORE, California – On Sept. 18, the National Ignition Facility (NIF) performed its 400th experiment of fiscal year (FY) 2016, meeting the year's goal several weeks early. In comparison, the facility completed 356 experiments in FY15 and 191 experiments in FY14. NIF is on track to complete 415 experiments by the end of the fiscal year, more than doubling its FY14 accomplishments. Located...

NPS students work with Lab researchers

Aug. 4, 2016- 
U.S. Army Capt. Drake Brewster sees his academic studies and Lab research of today preparing him for his career of tomorrow. A seven-year Army officer who is pursuing a career as a nuclear counterproliferation officer, Brewster is studying for his master’s degree in physics from the Monterey, California-based Naval Postgraduate School (NPS). As part of his studies, Brewster is conducting...

NIF experiments study how 'starstuff' is made

July 5, 2016- 
When the renowned cosmologist Carl Sagan declared that "we are made of starstuff," he wasn’t speaking metaphorically. As Sagan said in the TV series "Cosmos," many of the elements in our bodies - "the nitrogen in our DNA, the calcium in our teeth, the iron in our blood" - were forged in the interiors of stars, in a process called stellar nucleosynthesis (element formation). Lighter elements,...

Diagnostic provides top-down view of neutrons

June 13, 2016- 
A new diagnostic built on the National Ignition Facility's (NIF) roof is giving researchers a clearer picture of the neutrons released during laser-driven implosions of target capsules containing deuterium or deuterium and tritium (DT).Instruments inside the North Pole neutron Time of Flight (nTOF) enclosure, a structure slightly larger than an industrial shipping container, detect and record...

DOE awards grants to early-career researchers

May 6, 2016- 
The Department of Energy on Tuesday named two Lawrence Livermore National Lab scientists among the winners of the prestigious DOE Office of Science’s Early Career Research Program (ECRP) awards, granting them up to $500,000 per year for five years.Félicie Albert, an experimental plasma physicist at the National Ignition Facility and expert in ultrafast X-ray sources and laser-plasma...

Experiments shine light on exotic cosmic rays

May 3, 2016- 
The Earth is under constant bombardment by subatomic particles called cosmic rays, including some, known as ultra-high-energy cosmic rays, which pack much more punch than the world’s most powerful particle accelerators. Fortunately, Earth’s atmosphere protects us by dissipating most of that energy before it reaches the ground.But where do these ultrafast cosmic rays come from, and how are...

New paper examines hydrogen at high pressure

April 15, 2016- 
Hydrogen is the most abundant element found in the universe, making up nearly three-quarters of all matter. Despite its prevalence, questions about the element remain.In a new paper published today by Nature Communications, a team of researchers, including scientists from Lawrence Livermore National Laboratory (LLNL), aims to answer one of those questions – what happens to hydrogen at high...

Physicist's laser research wins SPIE honor

April 11, 2016- 
Christopher Barty, the chief technology officer for the National Ignition Facility and Photon Science Directorate, has won the 2016 SPIE Harold E. Edgerton Award for his work on ultrafast lasers and laser-based X-ray and gamma ray science."I feel very honored to have won this award and to now be somehow associated with the legacy of ‘Doc’ Edgerton," Barty said.Edgerton was an MIT professor...

Shock compression research shows hexagonal diamond could serve as meteor impact marker

March 14, 2016- 
In 1967, a hexagonal form of diamond, later named lonsdaleite, was identified for the first time inside fragments of the Canyon Diablo meteorite, the asteroid that created the Barringer Crater in Arizona.Since then, occurrences of lonsdaleite and nanometer-sized diamonds have been speculated to serve as a marker for meteorite impacts, having also been connected to the Tunguska explosion in...

Lawrence Livermore physicist receives Presidential honor

Feb. 24, 2016- 
Lawrence Livermore National Laboratory (LLNL) physicist Tammy Ma has been selected for a 2016 Presidential Early Career Award for Science and Engineering (PECASE), one of 106 recipients nationwide and one of 13 from the Department of Energy. The awardees will be honored in a ceremony later this year.Ma was recognized for her "innovation and leadership in quantifying hydrodynamic instability...

Astrophysicist to field questions about NIF shots

Feb. 10, 2016- 
University of Oxford graduate student Jena Meinecke has literally prepared for years and traveled around the world for the chance to conduct experiments on the National Ignition Facility (NIF). Meinecke is one of about 600 members of the NIF user community — researchers who are interested in experiments on the world's most energetic laser. Her quest: probe the origins of magnetic fields in...

NIF experiments shed light on turbulent mix

Feb. 2, 2016- 
Scientists from Los Alamos National Laboratory (LANL) are leading an experimental campaign on the National Ignition Facility (NIF) designed to further understand turbulent mix models used in both high energy density (HED) and inertial confinement fusion (ICF) experiments. NIF is the only facility with the energy and shot-to-shot reproducibility needed for the experiments.During shots using...

New research paper highlights visualization of high-energy electrons in fast-ignition targets

Jan. 28, 2016- 
Fast ignition (FI) is an alternative approach to conventional inertial confinement fusion that involves separating the compression and heating phases of the implosion, using a more stable compression followed by a short burst of localized heating. By separating these two aspects, the fuel can be compressed isochorically (without a central hotspot), reducing the fuel density requirements or...

Petawatt laser system passes a key milestone

Jan. 22, 2016- 
The High-Repetition-Rate Advanced Petawatt Laser System (HAPLS) under construction at LLNL recently achieved a key average power milestone more than two months ahead of schedule, and is now moving into the next phase in its development.The HAPLS high-energy diode-pumped solid-state pump laser, firing at a repetition rate of 3.3 Hz (3.3 shots per second), achieved 70 joules of infrared (1,053...

Researchers go for the gold on a single chip

Jan. 20, 2016- 
Lawrence Livermore National Laboratory researchers have created a library of nanoporous gold structures on a single chip that has direct applications for high-capacity lithium ion batteries as well as neural interfaces.Nanoporous gold (np-Au), a porous metal used in energy and biomedical research, is produced through an alloy corrosion process known as dealloying that generates a...

LLNL wins three R&D 100 awards

Nov. 16, 2015- 
Lawrence Livermore National Laboratory researchers are the recipients of three awards among the top 100 industrial inventions worldwide for 2014.The trade journal R&D Magazine announced the winners of its annual awards, sometimes called the "Oscars of invention," Friday in Las Vegas. With this year's results, the Laboratory has now captured a total of 155 R&D awards since 1978.This year’s...

Event honors 20 years of Stockpile Stewardship

Oct. 22, 2015- 
The proven success of the Stockpile Stewardship Program (SSP) – which pushed the limits of modern science and engineering by requiring the transition from explosive nuclear weapons testing to what is effectively virtual nuclear testing – was celebrated Wednesday at a half-day public event hosted by the Department of Energy’s National Nuclear Security Administration (NNSA).Featured speakers...

Shaped laser pulse experiments boost understanding of NIF performance

Oct. 15, 2015- 
In a recent series of papers, Lawrence Livermore National Laboratory (LLNL) scientists examined the role of ablation-front instability and capsule convergence ratio in ignition science experiments at the National Ignition Facility (NIF).The papers address different aspects of an "adiabat-shaping" experimental campaign, which was performed to controllably assess the effects of ablation-front...