Seaborg Institute Affiliates and Student Mentors

Adam Bernstein

Research Interests:

The development of improved radiation detection techniques that facilitate global nuclear arms control, nonproliferation, and disarmament, rare neutral particles, in particular the measurement of neutrino oscillations using reactor sources, and the search for direct interactions of dark matter in Earthly detectors

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Adam Bernstein

Physicist

Email: bernstein3 [at] llnl.gov
Phone: 925-422-5918

Richard Bibby

Research Interests:

  • Environmental radiochemistry
  • Low level radiochemistry
  • Radiological emergency response
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Richard Bibby

EMRL Lead

Email: bibby1 [at] llnl.gov
Phone: 925-422-4386

Research Interests:

Geochronology and geochemistry of samples from asteroids, Moon, and Mars and in order to constrain the nature and timing of processes occurring in the proto-planetary disk and planetary bodies early in the history of the Solar System.

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Lars Borg

Chemist

Email: borg5 [at] llnl.gov
Phone: 925-424-5722

Jason Burke

Research Interests:

Astrophysics, cosmology, experimental gravitational detection methods, the physics of isomer population and decay modes, and fundamental tests of the standard model of particle physics and cosmology.

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Jason Burke

Physicist

Email: burke26 [at] llnl.gov
Phone: 925-423-5848

Research Interests:

  • Applications of noble gases to nuclear forensics
  • Earth and planetary science
  • Inertial confinement fusion at the National Ignition Facility
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Bill Cassata

Research Staff

Email: cassata2 [at] llnl.gov
Phone: 925-423-2812

Research Interests:

  • Noble gas monitoring/investigation
  • Post-detonation nuclear forensics
  • Radioisotope production techniques
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Christine Egnatuk

Research Staff

Email: egnatuk1 [at] llnl.gov
Phone: 925-424-3586

Research Interests:

The development and application of radiometric chronometry and isotope geochemistry to problems in nuclear forensics and planetary geochronology and petrogenesis.

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Amy Gaffney

Research Staff

Email: gaffney1 [at] llnl.gov
Phone: 925-422-4396

Research Interests:

  • Development of reference materials for the interest of producing realistic nuclear forensic samples
  • Separation methods related to actinides, transactinides and superheavy elements
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Narek Gharibyan

Research Staff

Email: gharibyan1 [at] llnl.gov
Phone: 925-423-5289

Research Interests:

  • Nuclear forensics
  • The security of nuclear materials in general (e.g., safeguards, nonproliferation, and illicit trafficking)
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Brett Isselhardt

Research Staff

Email: isselhardt1 [at] llnl.gov
Phone: 925-424-3347

Research Interests:

The application of micro-analytical techniques for nuclear forensics, nuclear safeguards, and the transport of actinides in the environment.

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Ruth Kips

Nuclear Engineer

Email: kips1 [at] llnl.gov
Phone: 925-422-3860

Research Interests:

  • The analysis of nuclear and associated materials to better understand clues about the origins, locations or processes
  • The renaissance of historical fallout research to better understand fallout formation and interpretation in near surface nuclear events
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Kim Knight

Isotope Geochemist

Email: knight29 [at] llnl.gov
Phone: 925-422-9396

Research Interests:

The application of analytical techniques to national security problems, as well as advancing the state-of-the-art in mass spectrometry, elemental/molecular imaging, and surface and microanalysis.

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Mike Kristo

Senior Scientist

Email: kristo2 [at] llnl.gov
Phone: 925-422-7714

Simon Labov

Research Interests:

  • Nuclear detection systems
  • Advanced spectral and multisource analysis algorithms
  • Distributed detector systems
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Simon Labov

Staff Scientist

Email: labov1 [at] llnl.gov
Phone: 925-423-3818

Research Interests:

Geochronology and geochemistry of planetary samples, formation and evolution of meteorites and planets, mineralogy and petrology of meteorites, isotopic and chemical evolution of the early solar system materials; nuclear forensics and attribution; and hydrothermal alteration and water-rock interaction in active and fossil hydrothermal systems and their relation to ore forming processes.

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Naomi Marks

Research Staff

Email: marks23 [at] llnl.gov
Phone: 925-422-3853

Research Interests:

Developing a better understanding of the physical and chemical processes that shaped the origin of our solar system from the condensation of the first solid materials to the evolution of planetary bodies.

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Jennifer Matzel

Research Staff

Email: matzel2 [at] llnl.gov
Phone: 925-422-0051

Steven Padgett

Research Interests:

Beta decay, gamma-ray, and neutron spectroscopy studies for nuclear forensics and nuclear safeguards applications.

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Steven Padgett

Staff Scientist

Email: padgett4 [at] llnl.gov
Phone: 925-422-5969

Research Interests:

Fundamental actinide chemistry, actinide behavior at solid-liquid interfaces, environmental transport and behavior of f-elements, engineered nanomaterials, extractions and separations of f-elements, microscopy, spectroscopic measurements, radiological measurements, nuclear forensics.

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Tashi Parsons-Davis

Radiochemist

Email: parsonsmoss1 [at] llnl.gov
Phone: 925-423-2304

Research Interests:

  • Modeling, chemometrics, and database development
  • Use of reactor modeling codes to generate spent fuel compositions, dose rates, and decay heat for nuclear forensics, nonproliferation, and nuclear security research
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Martin Robel

Research Staff

Email: robel1 [at] llnl.gov
Phone: 925-422-0314

Research Interests:

Advanced mass spectrometry for nuclear forensics and cosmochemistry.

Michael Savina

Physical Chemist

Email: savina1 [at] llnl.gov
Phone: 925-422-5060

Research Interests:

Low-energy nuclear physics, electroweak interactions, atom and ion trapping techniques, nuclear astrophysics, rare or exotic nuclear phenomena.

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Nicholas Scielzo

Research Staff

Email: scielzo1 [at] llnl.gov
Phone: 925-422-4172

Research Interests:

Study of the nuclear and chemical properties of actinides, transactinides, and superheavy elements; fission properties; target preparation and radiochemical separation techniques; rapid heavy element atom-at-a-time chemistry; the behavior of radioactive contaminants in the environment.

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Dawn Shaughnessy

Physicist

Email: shaughnessy2 [at] llnl.gov
Phone: 925-422-9574

Mike Singleton

Research Interests:

Predicting the hydrological response of alpine groundwater systems to climate change, tracking contaminants from agriculture and legacy nuclear material production in groundwater systems, developing geolocation signatures of nuclear materials, and establishing forensic signatures of toxic chemicals.

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Mike Singleton

Staff Scientist

Email: singleton20 [at] llnl.gov
Phone: 925-424-2022

Research Interests:

Studying the sustainability of water resources by applying environmental tracers in a variety of hydrological systems to investigate sources, path ways and travel times of water.

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Ate Visser

Research Staff

Email: visser3 [at] llnl.gov
Phone: 925-423-0956

Research Interests:

  • Environmental radiochemistry
  • Actinide chemistry
  • Surface complexation modeling of contaminant-mineral interactions
  • Reactive transport modeling
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Mavrik Zavarin

Geochemist

Email: zavarin1 [at] llnl.gov
Phone: 925-424-6491