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...

LLNL hosts Test Site Verification Team orientation

Aug. 6, 2021- 
Lawrence Livermore National Laboratory (LLNL) hosted an in-person orientation meeting recently for members of the National Nuclear Security Administration’s (NNSA) Test Site Verification Team (TSVT). TSVT is sponsored by NNSA’s Office of Nuclear Verification (ONV) Nuclear Compliance Verification (NCV) Program. The TSVT is led by Kim Knight from LLNL and Emily Schultz-Fellenz from Los...

LLNL's Forensic Science Center earns 'A' grade in OPCW environmental test

Aug. 5, 2021- 
This fall, a score of scientists from Lawrence Livermore National Laboratory's (LLNL) Forensic Science Center (FSC) will start two weeks of long days to undertake the Organisation for the Prohibition of Chemical Weapons (OPCW) environmental proficiency test. Livermore scientists have been taking the proficiency tests each October since 2001, with LLNL serving as one of two United States...

Advanced Data Analytics for Proliferation Detection shares technical advances during two-day meeting

May 7, 2021- 
The Advanced Data Analytics for Proliferation Detection (ADAPD) program held a two-day virtual technical exchange meeting recently. The goal of the meeting was to highlight the science-based and data-driven analysis work conducted by ADAPD to advance the state-of-the-art to accelerate artificial intelligence (AI) innovation and develop AI-enabled systems to enhance the United...

Different neutron energies enhance asteroid deflection

April 8, 2021- 
A research collaboration between Lawrence Livermore National Laboratory (LLNL) and the Air Force Institute of Technology (AFIT) investigates how the neutron energy output from a nuclear device detonation can affect the deflection of an asteroid. Scientists compared the resulting asteroid deflection from two different neutron energy sources, representative of fission and fusion neutrons...

Lab develops new method for probing material strength

Feb. 9, 2021- 
In an effort to better understand how materials deform under extreme conditions, researchers at Lawrence Livermore National Laboratory (LLNL) have developed a new experimental method for probing large-strain and high-rate material strength. In a paper recently published in Acta Materialia, Jonathan Lind, LLNL physicist and lead author, said results of the work aid in providing updated...

Kim Budil selected as director of Lawrence Livermore

Jan. 28, 2021- 
Kim Budil has been named director of Lawrence Livermore National Laboratory (LLNL). Charlene Zettel, chair of Lawrence Livermore National Security, LLC (LLNS), which manages the Laboratory for the Department of Energy's (DOE) National Nuclear Security Administration (NNSA), made the announcement to Laboratory employees Jan. 28. Budil will begin her new role on March 2. Appointed with...

Lab teams earn DOE Secretary Achievement Awards

Jan. 27, 2021- 
Lawrence Livermore National Laboratory (LLNL) employees, participating in 10 project teams, recently earned Department of Energy (DOE) Secretary Achievement Awards. Representing some of the highest internal, non-monetary recognition that DOE employees and contractors can receive, these awards recognize DOE employees and contractors for their service and contributions to the department’s...

Warhead replacement program passes first key milestone

Oct. 1, 2020- 
Lawrence Livermore National Laboratory (LLNL) researchers passed their first program level key milestone in the W87-1 Modification Program (W87-1 Mod) on Sept. 24, keeping the program on schedule despite work stoppages due to the COVID-19 pandemic. The W87-1 Mod will replace the W78 thermonuclear warhead with a modified design of the W87 warhead. The W78 is nearing the end of its...

Lab delivers innovation jolt with pulsed power modules

July 1, 2020- 
Lawrence Livermore National Laboratory (LLNL) researchers delivered four pulsed power modules to Nevada National Security Site (NNSS) this month, making excellent time despite many challenges presented by COVID-19. The modules are key elements in a novel diagnostic capability jointly developed by Los Alamos National Laboratory (LANL), NNSS and LLNL to be deployed in the U1A underground...

Laboratory researchers describe how antineutrino detectors could aid in nuclear nonproliferation efforts

March 16, 2020- 
A tiny, invisible particle could offer help for a big problem — the threat of nuclear proliferation. For more than six decades, scientists have been developing instruments for fundamental physics that can detect antineutrinos, particles that have no electric charge, almost no mass and easily pass through matter. Antineutrinos are emitted in vast quantities by nuclear reactors, and since...

Theory aids analysis of nuclear materials

Aug. 22, 2018- 
Nuclear emergency teams, safeguards specialists and others may one day benefit from an expanded nuclear fission chain theory and detectors developed by a team of Lawrence Livermore Nationla Laboratory (LLNL) physicists.          The Livermore scientists have bolstered their theory for understanding nuclear fission chains --  a cascade of atomic nuclei splitting, each initiated by a neutron...

John Nuckolls to be awarded John S. Foster Jr. Medal for contributions to nuclear security

Aug. 8, 2018- 
For more than 60 years, John Nuckolls has dedicated his career to advancing science and technology in support of U.S. national security. In recognition of his outstanding leadership and service to the nation, he has been named the fourth recipient of the John S. Foster Jr. Medal. Established by Lawrence Livermore National Security, LLC (LLNS) and bestowed on an annual basis by the director...

Experiment aims to advance nuclear monitoring

May 12, 2016- 
A Lawrence Livermore National Laboratory (LLNL) team played a key role in fielding the recent Source Physics Experiment (SPE-5) detonated at the Nevada Nuclear Security Site (NNSS).The SPE shots, including the most recent one on April 26, consist of a series of six underground high-explosive detonations in hard rock that are designed to improve the United States’ ability to detect and...

Moniz awards Ian Hutcheon memorial fellowship

Feb. 4, 2016- 
Energy Secretary Ernest Moniz last Thursday awarded the first Office of Defense Nuclear Nonproliferation (DNN) fellowship in honor of the late Ian Hutcheon, a longtime nuclear forensics expert at Lawrence Livermore National Laboratory, to Thomas Gray.Gray serves as a nonproliferation graduate fellow in the National Nuclear Security Administration’s Office of Defense Nuclear Nonproliferation...

Harsh conditions can't contain researchers' efforts to test radiation detection systems

Sept. 21, 2015- 
Researchers from five laboratories and a private company recently spent two days in blistering 100 degree heat testing radiation detection technologies amidst cargo containers.The 15 researchers demonstrated the feasibility of using gamma-ray and neutron imaging detectors to identify radioactive materials using the Laboratory’s cargo container stack testbed."The purpose of our test was to...

Nonproliferation research nets excellence medal

Aug. 24, 2015- 
Anne Harrington, the National Nuclear Security Administration's (NNSA) deputy administrator for Defense Nuclear Nonproliferation, recently presented the NNSA Excellence Medal to Leon Berzins for the successful Source Physics Experiment 4 Prime (SPE4) campaign at the Nevada National Security Site (NNSS).The experiments, designed to provide a better understanding of seismo-accoustic propagation...

Top 10 science and technology stories of 2014

Dec. 17, 2014- 
In 2014, Lawrence Livermore National Laboratory (LLNL) built on a 62-year tradition of translating basic science into technologies that ensure national security, address pressing real world problems and expand the boundaries of fundamental science.The top stories of the year are a reflection of the Laboratory’s ability to apply its core national security competencies to a broad set of rapidly...

LLNL scientists pioneer the use of established technology for analyzing uranium ore concentrate samples

Oct. 2, 2013- 
A team of Lawrence Livermore National Laboratory (LLNL) researchers has pioneered the use of a long-standing technology for a new application -- analyzing the chemical composition of uranium samples.In a paper published as the cover story in the September edition of Applied Spectroscopy , the Laboratory scientists describe the first reported use of near-infrared spectrometry to study the...