Ironing out the interiors of exoplanets

Jan. 13, 2022- 
The discovery of more than 4,500 extra-solar planets has created a need for modelling their interior structure and dynamics. As it turns out, iron plays a key role. Lawrence Livermore National Laboratory (LLNL) scientists and collaborators have used lasers at the National Ignition Facility to experimentally determine the high-pressure melting curve and structural properties of pure iron up...

LLNL scientist honored as 2022 American Astronomical Society fellow

Jan. 7, 2022- 
LLNL physicist Richard Klein has been selected as a 2022 fellow of the American Astronomical Society. Klein, who was selected “for broad and influential contributions to computational astrophysics, for scientific achievements on radiatively-driven stellar winds and star formation theory and for training a generation of students and postdoctoral scholars,” is one of 23 members honored as...

National Ignition Facility experiment puts researchers at threshold of fusion ignition

Aug. 18, 2021- 
On Aug. 8, 2021, an experiment at Lawrence Livermore National Laboratory’s (LLNL’s) National Ignition Facility (NIF) made a significant step toward ignition, achieving a yield of more than 1.3 megajoules (MJ). This advancement puts researchers at the threshold of fusion ignition, an important goal of the NIF, and opens access to a new experimental regime. The experiment was enabled by...

Researchers focus on how tantalum behaves at high pressure and temperature

Aug. 18, 2021- 
Lawrence Livermore National Laboratory (LLNL) researchers have explored high-pressure behavior of shock-compressed tantalum at the Omega Laser Facility at the University of Rochester’s Laboratory for Laser Energetics (LLE). The work showed tantalum did not follow the predicted phase changes at high pressure and instead maintained the body-centered cubic (BCC) phase until melt. The...

Scientists put additive manufactured foams to the test

March 25, 2021- 
Lawrence Livermore National Laboratory (LLNL) scientists recently published the results of a three-week experimental campaign at the Lab’s Jupiter Laser Facility to test the performance of laser-heated additive manufactured foams. The project helps support two major Laboratory focus areas, including helping to advance additive manufacturing and by enabling improvements in performance...

Study reveals cause of 3D asymmetry in ICF implosions

Feb. 25, 2021- 
Inertial confinement fusion (ICF) implosions require very high levels of symmetry in order to reach the high densities and temperatures required for fusion induced self-heating. Even percent-level deviations from perfect spherical symmetry can lead to significant distortions of the implosion and ultimately degrade fusion performance. To that end, researchers from Lawrence Livermore...

LLNL Weapon Engineers, Biologists Deliver Critical Samples to Identify Skin Proteins Left on IEDs

Feb. 17, 2021- 
Following a terrorist bombing, can the bomb maker be identified by skin proteins left on the bomb components they handled? To address this question, Lawrence Livermore National Laboratory (LLNL) personnel from Weapons Complex Integration (WCI) and Global Security (GS) Forensic Science and Biosecurity Centers (FSC/BSC) subjected notional bomb components handled by LLNL volunteers to...