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Nuclear, Chem, and Isotopic S&T

Forensic Science Center earns 8th straight ‘A’ in OPCW tests

During their 15 years as a certified laboratory for the Organization for the Prohibition of Chemical Weapons (OPCW), a score of LLNL chemists have developed some first-rate habits. One of them is earning “A” grades on the organization’s environmental proficiency tests. In recently-announced results, LLNL earned its eighth straight “A” grade during last fall’s OPCW…

Exotic Nucleus Exhibits Curious Shape

Our researchers and collaborators created a technique used to determine the shape of a neutron-rich ruthenium isotope.

2017 Research Slam is a hit

On Sept. 7, 2017, 12 postdoc finalists of Lawrence Livermore National Laboratory's 2017 Research Slam! talked for three minutes each about their work before a distinguished panel of judges. The postdocs were competing for monetary prizes of two, three and four thousand dollars for third, second and first place winners, but perhaps the biggest prize was the chance to…

Lab team uses pulsed ion beams to probe radiation defect dynamics in nuclear materials

Materials scientists at Lawrence Livermore National Laboratory (LLNL) have developed a novel experimental method to access the dynamic regime of radiation damage formation in nuclear and electronic materials. Their approach is based on using pulsed ion beams for measurements of defect lifetimes, interaction rates and diffusion lengths. The creation of stable radiation…

Zavarin named Director of Glenn T. Seaborg Institute

Mavrik Zavarin has been named the new Director of The Glenn T. Seaborg Institute (GTSI) in the Physical & Life Sciences Directorate. In this capacity, Mavrik will continue to develop the GTSI's mission to carry out cutting-edge research in areas key to LLNL's Nuclear Security and Energy & Environment mission areas, with an emphasis on providing opportunities for…

Providing data for nuclear detectives

Fans of the popular TV series "CSI" know that the forensics experts who investigate crime scenes are looking for answers to three key questions: "Who did it; how did they do it; and can we stop them from doing it again?"The field of nuclear forensics, an important element of LLNL’s national security mission, has similar goals and uses similar techniques — but with even…

White captures second award for nuclear forensics work

For the second time, Lab physicist Roger White, a designer in B-Division from the Weapons and Complex Integration (WCI) Directorate, has received an award from the Defense Threat Reduction Agency (DTRA) for his work in post-detonation nuclear forensics.White was named the "top contributor of the quarter" for the third quarter of the fiscal year 2013 (April-June, 2013) for…

NNSA completes removal of high security special nuclear material from the Laboratory

The National Nuclear Security Administration (NNSA) on Friday announced that the last of the Security Category I/II special nuclear material items that required the highest level of security at the Laboratory have been removed. LLNL's primary mission will continue to be to ensure the safety, security and reliability of the nuclear weapons stockpile, but this mission will…

Lawrence Livermore Laboratory team achieves breakthrough detecting nuclear materials

When a young man was advised to pursue a career in plastics in the 1967 movie, "The Graduate," people could not have envisioned one of the material's uses developed by Lawrence Livermore National Laboratory (LLNL) scientists. In a key discovery, a team of LLNL researchers has developed the first plastic material capable of efficiently distinguishing neutrons from gamma…

From the stars to nuclear forensics

Using an instrument originally developed to probe the minute amounts of stellar dust found in meteorites, Kim Knight has developed a technique to analyze raw materials to determine the fallout from a nuclear explosion. Called Resonance Ionization Mass Spectrometry or RIMS, Knight and LLNL colleague Ian Hutcheon, along with collaborators at Argonne National Laboratory and…

NTI works to reduce danger of nuclear, bio and chemical weapons

The Washington, D.C.-based Nuclear Threat Initiative (NTI) combines the voices of its experts with projects to reduce the dangers from nuclear, biological, and chemical weapons and material. That's the view of Lab employee Page Stoutland, who for the past seven months has been serving on a high-level assignment as vice president for the nuclear materials security program…