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Nuclear and Chemical Sciences
Lab earns 'A' grade in OPCW test
In another month-and-a-half, a score of chemists from Lawrence Livermore National Laboratory's Forensic Science Center (FSC) will start two weeks of long days to undertake the Organization for the Prohibition of Chemical Weapons (OPCW) environmental proficiency test. Livermore chemists have been taking the proficiency tests each October since 2001, with LLNL serving as one…
LLNL an OPCW-designated lab for biomedical samples
In addition to maintaining its Organization for the Prohibition of Chemical Weapons (OPCW) laboratory designation for analyzing suspect environmental samples, LLNL also is an OPCW-designated laboratory for the analysis of biomedical samples. (See "Lab earns 'A' in OPCW test) In this instance, OPCW inspectors have the ability to collect biomedical samples for cases of…
R&D 100 Winner: Portable Threat Assessment
Livermore physicist Sean Walston is a co-developer for the MC-15 portable neutron multiplicity detector.
Tuning into Dark Matter
Lawrence Livermore researchers and collaborators are searching for the axion—a low-mass particle that could make up the majority of dark matter.
A Revelation in Nuclear Science
Livermore scientists, in collaboration with university partners, are studying ways to harvest rare isotopes, including a radioactive isotope of the element zirconium.
E-waste-eating protein extracts rare earth elements
Lawrence Livermore National Laboratory (LLNL) researchers, in collaboration with Pennsylvania State University (PSU) and Idaho National Laboratory (INL), have designed a new process, based on a naturally occurring protein, that could extract and purify rare earth elements (REE) from low-grade sources. It could offer a new avenue toward a more diversified and sustainable…
DOE honors two early career Lab scientists
Two scientists from Lawrence Livermore National Laboratory (LLNL) are recipients of the Department of Energy’s (DOE) Office of Science Early Career Research Program award. Federica Coppari and Erin Nuccio are among 76 scientists nationwide selected for the recognition. Under the program, typical awards for DOE national laboratory staff are $500,000 per year for five years…
Second skin protects against chem, bio agents
Recent events such as the COVID-19 pandemic and the use of chemical weapons in the Syria conflict have provided a stark reminder of the plethora of chemical and biological threats that soldiers, medical personnel and first responders face during routine and emergency operations. Personnel safety relies on protective equipment which, unfortunately, still leaves much to be…
Experiment improves predictions of uranium dispersion
The predictive models that describe the fate and transport of radioactive materials in the atmosphere following a nuclear incident (explosion or reactor accident) assume that uranium-bearing particulates would attain chemical equilibrium during vapor condensation. In a new study, funded by the Office of Defense Nuclear Nonproliferation Research and Development (DNN R&D…
Laboratory researchers describe how antineutrino detectors could aid in nuclear nonproliferation efforts
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…
Forensic scientist wins 'outstanding' early career award
A chemist who is the director of Lawrence Livermore National Laboratory’s (LLNL) Forensic Science Center is the recipient of the 2020 “Outstanding Early Career Achievement in Forensic Science Award.” The award, given to LLNL’s Audrey Williams, is presented annually by the American Academy of Forensic Sciences (AAFS) Past Presidents Council. This year’s award will be…
Lab teams recognized by Secretary of Energy awards
Former Secretary of Energy Rick Perry recognized Lawrence Livermore National Laboratory (LLNL) staff with six Secretary’s Honor Awards at a ceremony at Department of Energy (DOE) headquarters. The Secretary’s Honor Awards are bestowed on teams that have achieved a singular accomplishment that demonstrates a high level of performance and dedication to public service. As his…
PLS postdocs shine at Research Slam! competition
On October 29, 2019, twelve Lawrence Livermore postdocs took to the stage, each with three slides and three minutes to answer the question: “Why is your research important?” The presentations, part of a yearly competition known as the Research Slam!, were a culmination of months of development, training, and practice. The 2019 program kicked off with seminars about…
Nuclear melt glass-derived colloid experiments explain why plutonium is migrating in groundwater
The migration of low levels of plutonium has been observed at the Nevada National Security Site (NNSS) and attributed to colloid-facilitated transport. (A colloid is a mixture in which one substance of microscopically dispersed particles is suspended throughout another substance.) To understand why plutonium is migrating, LLNL scientists performed experiments using mineral…
Livermore researchers contribute to major plutonium publication
This fall, the American Nuclear Society is publishing the second edition of the Plutonium Handbook, a 4000-page, 7-volume compendium that delivers a comprehensive review of plutonium chemistry. (The first edition was published 50 years ago.) Five years in the making, this publication includes contributions from 17 Lawrence Livermore researchers, two of whom are also on the…
PLS wraps up summer student programs
Approximately 1000 students came to the Laboratory this summer to engage in work-study employment in science, technology, engineering, mathematics, and administrative fields. PLS hosted a number of these students through its summer student programs (described below). Nuclear science and security The Glenn T. Seaborg Institute hosted 12 students this summer, including 8…
Furthering the application of human identification techniques using hair
Human hair is invaluable to forensic investigations because it is one of the few biological specimen types that persist for long periods of time. However, hair contains minimal intact nuclear DNA, leading researchers to search for alternate identification methods using hair. Previous research led to a new protein-based identification technique, providing a way to identify…
Victory Through Annihilation: Jason Brodsky’s Neutrinos that Saved the Universe
Jason Brodsky says his work is like “looking for a candle in a raging inferno.” But the Lawrence Livermore physicist believes finding that “candle” could be the key to understanding existence itself. Brodsky’s specialty is rare-event detection, both during his Princeton graduate work on dark matter and his current postdoctoral research at LLNL, in which he searches for…
Theory aids analysis of nuclear materials
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…
Quest for source of black hole dark matter
Like a game of "hide and seek," Lawrence Livermore astrophysicists know that there are black holes hiding in the Milky Way, just not where. If they find them toward the galactic bulge (a tightly packed group of stars) and the Magellanic Clouds, then black holes as massive as 10,000 times the mass of the sun might make up dark matter. If they are only toward the galactic…
