The Distinguished Member of Technical Staff (DMTS) classification, created to serve as a career ladder for LLNL scientists and engineers, appropriately recognizes ST&E excellence with distinction and compensation while allowing the honored recipients to remain focused on delivering ST&E solutions to critical mission areas of the Laboratory. Only a limited number of scientists and engineers are selected for DMTS recognition: following the practices of other laboratories and industry, Lawrence Livermore expects its DMTS population to remain within 3 to 5 percent of the eligible pool of scientists and engineers.
Eleven Lawrence Livermore National Laboratory researchers were named Distinguished Members of Technical Staff (DMTS) in 2015 for their extraordinary scientific and technical contributions to the Laboratory and its missions, as acknowledged by their professional peers and the larger community.
Gilbert (Rip) Collins of Physical and Life Sciences (PLS), Dale Darling of Global Security, Bronis de Supinski of Computation, John Elmer of Engineering, Steve Haan of Weapons and Complex Integration, Brian MacGowan of NIF and Photon Sciences, Harry Martz of Engineering, Roger Miller of Engineering, Stephen Payne of PLS, Dean Williams of Computation and Natalia Zaitseva of PLS have earned the DMTS designation by reaching the highest technical staff level achievable by a scientist or engineer at the Lab.
Top row from left: Gilbert (Rip) Collins, Dale Darling, Bronis de Supinski, John Elmer and Steve Haan.
Bottom row from left: Harry Martz, Brian MacGowan, Roger Miller, Stephen Payne, Dean Williams and Natalia Zaitseva.
Gilbert (Rip) Collins
Over the past 17 years, Rip Collins has been a leading figure in establishing a new branch of science – experimental condensed matter physics at extreme, high-energy-density (HED) conditions. His pioneering work on the measurement of the equation of state of deuterium, which used laser-generated shocks to compress the sample, launched an international effort to use a new generation of HED facilities to explore the properties of material at these extreme conditions, which had previously been experimentally inaccessible. Now, as more HED facilities are becoming available, Collins is playing a pivotal international leadership role in building a broad scientific community to fully exploit these emerging capabilities for scientific discovery.
“What a great feeling it is to be selected as a DMTS,” Collins said. “Frankly, this honor is a reflection of the outstanding people I have had the privilege to work with during my years at Livermore.”
During his 35-year career at LLNL, Dale Darling has had a sustained history of distinguished scientific and technical achievements. Early in his career, his collaboration with researcher Richard Sacks in the invention of wetted foam cryogenic capsules was a key contributor to the Inertial Confinement Fusion Program, with important implications for the establishment of National Ignition Facility parameters. In later years, Darling became a recognized authority on foreign nuclear weapons programs. He also has been a key player in Comprehensive Test Ban Treaty issues and how the test ban might relate to future nuclear weapons threats.
“Being named a DMTS is a great honor and a privilege,” Darling said. “My career at LLNL has allowed me to pursue a variety of interests and has greatly benefited from a wide range of inspiring coworkers. After 35 years at LLNL, mainly working national security issues, I realize that sometimes a career path that is less traveled can result in the most interesting journey.”
Bronis de Supinski
In his 17 years at the Laboratory, Bronis de Supinski has established himself as a prolific researcher and an influential voice in the high performance computing (HPC) community. As an internationally respected leader in HPC system operations and efficiencies, particularly programming models, algorithms, performance, code correctness and resilience, he has made a direct impact on large-scale computing systems as well as shaping the Lab – and national – agenda for next-generation computing systems. His efforts have helped sustain LLNL’s extraordinary tradition of innovation and preeminence in HPC.
“I am honored to be included in the ranks of LLNL’s distinguished scientists,” de Supinski said. “The Lab’s commitment to high-quality science in general and high performance computing in particular creates an exciting work environment that has provided me with an excellent position from which to influence supercomputing.”
As an internationally recognized expert on welding and joining, John Elmer has been impacting the Department of Energy complex for more than 20 years. In addition to contributing to the advancement of the field through basic research, Elmer has been extremely effective at transforming those scientific advances into practical solutions for laboratory problems. He is best known for his pioneering development and application of synchrotron-based, in-situ, spatially resolved X-ray diffraction techniques to welding and phase transformation research. This work has had a major impact on materials research and is now applied by researchers around the world.
“LLNL has offered me the opportunity to extend welding research outside the traditional national security programmatic mission, and in doing so foster collaborations within the larger welding metallurgy community,” Elmer said. “Being recognized as a DMTS is a great honor that would not have been possible without these collaborations and the contributions of the outstanding scientists that I have had good fortune to work with during my career.”
Steve Haan, a 34-year LLNL veteran, is recognized for his compelling contributions to the Inertial Confinement Fusion (ICF) programs, both inside and outside the Lab; his in-depth knowledge of ICF science; and his ability to integrate science, technology and manufacturing. As a world-leading expert in the area of hydrodynamics, Haan is considered a pioneer in understanding hydrodynamic instabilities and mix in ICF implosions. In addition, Haan played a leading role in the design, fielding and analysis of the Halite-Centurion series of underground nuclear test experiments, knowledge that is still drawn from today by the National Nuclear Security Administration’s Stockpile Stewardship Program.
“It’s great to be recognized this way, and I am grateful to the people who put this through. I feel like everything I’ve done here has been a group effort, with other people helping me to figure out what questions we need to answer, and what kind of answers we need,” Haan said. “It’s been a lot of fun tracking ICF through the series of experimental programs — Halite-Centurion, Shiva, Novette, Nova, Omega and Naational Ignition FaciIity (NIF) — and I am excited about the progress that we continue to make. I’m glad I could be a part of it. And finally, it’s been fun watching new scientists grow into the field and I’m grateful that I could be a part of that process.”
For more than 30 years, Brian MacGowan has made significant contributions to science and programs important to LLNL. MacGowan became an internationally recognized expert in the field of soft X-ray lasers. He was instrumental in laying the experimental foundation that led to their development. His work in this area still is cited more than 20 years later. In addition, MacGowan has been a significant contributor to the physics basis of ICF on NIF through control of laser plasma interactions. He continues to be instrumental in developing, commissioning and operating NIF.
“I appreciate the varied career opportunities at LLNL that have allowed me to work with world-class people and facilities,” MacGowan said.
A national and international leader in his field, Martz has spent nearly three decades advancing X-ray computed tomography in the field of non-destructive characterization, resulting in significant impacts to United States aviation and portal security. His work has made important contributions to national security in the area of X-ray imaging for detection of illicit materials. This world-renowned expertise has been leveraged to position the Lab as an independent adviser to government agencies at critical stages of technology development in this area.
“I am honored and humbled to be selected as a DMTS. When I started at LLNL about 30 years ago to work on computed tomography, I could not imagine how rewarding my career would be. I have and continue to be fortunate to work with many brilliant and professional colleagues, as well as contribute to several important national security areas,” Martz said. “I share this honor with all of my colleagues. Without them this would not be possible. It is an opportune time for non-destructive characterization, and I hope my colleagues and I can continue as well as build upon our past successes into the future.”
Roger Miller is recognized for his myriad achievements in the national security arena as one of the United States’ premier technical experts on foreign nuclear programs, especially enrichment activities. He has been a key technical expert supporting U.S. negotiations in Iran. His expertise, recognized by his peers as well as senior domestic and international policymakers, directly results from his ability to apply his technical acumen to important national security challenges. Miller’s numerous assessments have provided the foundation for major U.S. policy initiatives in this area.
“I’m honored by the Laboratory’s recognition,” Miller said. “Any credit belongs to the dedicated professionals I work with — within the Lab, at various government agencies and among our international partners. I’ve been lucky to have a job that is exciting and offers the opportunity to support our nation’s goals by providing policymakers with the best possible technical analysis and understanding.”
During his 29-year tenure at LLNL, Stephen Payne has distinguished himself in two technical areas. As an internationally recognized expert on the material science and physics of solid-state laser materials and systems, Payne was the leader of teams that systematically identified, characterized, developed and demonstrated a variety of novel materials, several of which have been successfully commercialized and are used internationally. More recently, Payne turned his scientific and leadership capabilities to the identification, fabrication and demonstration of numerous novel materials for use in radiation detectors, a topic of critical importance for national security and other applications. He emphasizes that LLNL’s tradition of forming strong teams enabled his successes.
“I want to thank my current colleagues and all those I’ve had the pleasure of working with over the years,” Payne said. “Our shared moments of discovery and accomplishments have led to this honor, and for that I am most grateful.”
For more than 25 years, Dean Williams has contributed high-level achievements in climate science. As the principal investigator for the Earth System Grid Federation (ESGF) – a multi-agency international collaboration that provides interactive views of future climate changes based on projected natural and human factors – Williams has delivered an unrivaled and robust resource that allows scientists around the world unprecedented understanding of climate change, extreme weather events and environmental science. The project was asked to support the fourth Intergovernmental Program and Climate Change, work which was later honored with a 2007 Nobel Peace Prize, awarded jointly to former Vice President Al Gore and the IPCC team.
“It has been my deepest honor and pleasure to serve the climate research community and to work alongside some of the most talented scientists in the world,” Williams said. “Over the past 28 years, we have helped to create and develop multiple data and analysis frameworks that have been adopted by many global Earth system science projects. Obtaining this honor would not have been possible without the support and trust of my colleagues and the climate community at large.”
Over the course of her more than 20-year career at LLNL, Natalia Zaitseva has revolutionized the fields of crystal growth and radiation detection. She discovered mechanisms of solution growth that allowed high-quality crystals to be grown at rates up to 50 times faster than previously possible, a discovery that had immeasurable impact on the development of optical materials for NIF. The resulting scientific discoveries and technology developments have opened the way for other materials to be grown rapidly from solution and have significantly contributed to other areas of materials science. More recently, Zaitseva led a new area of crystal growth research based on applying solution methods to large-scale production of organic scintillators, which are of increasing importance for national security applications.
“I am very honored by this recognition, but at the end, any accomplishment I’ve been a part of became possible only because of the hard work and devotion of the people I’ve had a privilege to work with,” Zaitseva said. “I greatly appreciate the support of my colleagues, as well the support of the Lab itself for giving me the opportunity to do the work I like so much.”
Top row from left: George Anzelon, Ray Beach, Maya Gokhale, Juliana Hsu, and Ian Hutcheon.
Bottom row from left: Carlos Iglesias, John Moriarty, Ted Scharlemann, and Bob Tipton.
Nine LLNL researchers were named DMTS in 2013 (affiliations are in parentheses):
George Anzelon, a 36-year Laboratory veteran, is recognized for his leadership and deep understanding of technical, policy, and intelligence issues in nuclear nonproliferation. He has demonstrated expertise and leadership in difficult real-world situations in Libya, North Korea, and Iraq in support of ground inspections and actions to contain or eliminate nuclear proliferation in these countries. In addition, George mentors the next generation of LLNL experts in this field.
Ray Beach, a 26-year veteran of LLNL, has pioneered many current techniques in the field of high-average-power diode-pumped lasers and demonstrated a number of firsts in the field. His research and patents in diode-pumped lasers have enabled numerous commercial and Department of Defense applications, as well as the development of the National Ignition Facility and the Mercury laser.
Maya Gokhale, who joined the Laboratory in 2007, is one of the founders of the field of reconfigurable computing. She also has been instrumental in developing the hardware and software to make field-programmable gate array systems usable and accessible to the research community and in persistent memory solutions for high-performance computing. Her work has impacted both the design and planning of high-performance computing architecture.
Juliana Hsu is the foremost primary designer in the weapons complex, a status evidenced by successfully garnering two life-extension programs (LEPs) for LLNL. Juliana started at the Laboratory in 1996 and has been instrumental in developing the certification methodology—for use in the absence of testing—and applying it over the last decade to enable these LLNL successes. She has also been recognized by the JASON Defense Advisory Group, the STRATCOM Stockpile Assessment Team, and NNSA as the leading technical expert regarding primary design.
In his nearly 20 years at the Lab, Ian Hutcheon has played a key role in developing nuclear forensics as both a field of scientific investigation and a scientific discipline with significant application to national security. In addition to his national security research, Ian conducted groundbreaking investigations of nucleosynthetic processes, the formation mechanisms of planets and meteorites, and subtle diffusion-transport processes in terrestrial and planetary melts, glasses, and minerals. He also conducted (with Peter Weber) the first studies of biological materials with nanoscale secondary ion mass spectrometry and wrote (with Kenton Moody, a 2012 DMTS awardee) the definitive book on nuclear forensics, Nuclear Forensic Analysis.
Carlos Iglesias is recognized as a world leader in the theory, computational tools, algorithms, codes, and experimental analysis of hot dense plasmas. Carlos, along with Forrest Rogers, developed the OPAL opacity code for astrophysical and laboratory plasmas—a key part of the Standard Solar Model and deemed the "gold standard" in the field.
During his 31 years at the Laboratory, John Moriarty has distinguished himself as a recognized world leader in the microscopic modeling of the quantum behaviors of metals and alloys, particularly actinides important to LLNL national security missions. John has developed robust predictive methods, opening the way toward rigorous density-functional calculations of heavy-metal electronic structure. His methods underpin much of the atomistic and multiscale modeling work in the Laboratory's Condensed Matter and Materials Division and provided a scientific underpinning for the favored equation of state of plutonium.
During his nearly 30-year tenure at LLNL, Ted Scharlemann has become known among government agencies as a national expert on specific proliferation processes and their signatures. In the past 7 years, his work has had a major impact on National Intelligence Estimates, Presidential Daily Briefs, Intelligence Community Timeline Estimates, and more. He is recognized for developing the theoretical understanding for complex electromagnetic phenomena associated with several national security missions and their application to enable critical capabilities used in theater.
Robert Tipton, known as the "father of stockpile stewardship codes," is internationally recognized as the premier computational physicist in nuclear weapons. His achievements also include developing an arbitrary Lagrange-Eulerian hydrodynamics code—known as CALE—that is widely used by the Departments of Energy and Defense for many applications involving equation of state, opacity, radiation transport, high explosives, laser deposition, and magnetohydrodynamic munitions and armory.
Top row from left: Dmitry Ryutov, John Castor, Jim Candy, Tom Slezak, and Omar Hurricane.
Bottom row from left: Jim Hammer, Bruce Remington, Nino Landen, Ken Moody, and Neil Joeck.
Ten LLNL researchers were named Distinguished Members of Technical Staff (DMTS) in 2012 (affiliations are in parentheses):
Jim Candy has more than 36 years at the Laboratory in signal and image processing, which has made fundamental impacts inside and outside the Laboratory, where he has been called one of LLNL's "natural resources." His work is a critical element in a wide range of Lab projects and disciplines. Jim's work at LLNL has spanned a broad variety of technical areas, programs, and work-for-others projects, bringing national and international recognition to himself and the Laboratory with his novel signal and imaging processing research and development.
In his 30 years at the Laboratory, John Castor has made a name for himself inside and outside the weapons labs. His initial theoretical work in astrophysics on the theory of stellar pulsation led him to the study of non-local thermodynamics equilibrium processes in stellar atmospheres. His work on the theory of radiatively-driven stellar wind — the astrophysical work for which he is best known — allowed him to draw up a paper in 1975 that is widely considered one of the most influential papers in astrophysics of the 1970s and 1980s, with more than 1,000 citations. Castor joined the Laboratory in 1981 and he linked up with the secondary design physics division where he has been ever since. His efforts went from radiation transport techniques and applications in astrophysics to physical databases for the simulation codes to other studies such as the dynamics of missile flight. Recently, he has advised the NIF Ignition Campaign on material property questions.
Jim Hammer has been a physicist at the Laboratory since 1979, starting in the magnetic fusion area, then joining the Inertial Confinement Fusion Program in the early 1990s and continuing into A Program. He is recognized for the invention and demonstration of new fusion and high-energy-density concepts as well as groundbreaking science. Initially working on the Lab's spheromak experiment, he went on to come up with the idea that led to what is now known as "fast ignition." He also has worked on pulsed-power driven fast Z-pinches and the energy balance issue in the weapons program — he identified a previously unrecognized physical effect that plays a dominant role.
Omar Hurricane's impact on the important core LLNL mission of Stockpile Stewardship has been well recognized as transformative. He has established himself as a leading authority in secondary design physics as well as high-energy-density plasma physics. In 2009, he won the E.O. Lawrence Award for national security and nonproliferation, one of the highlights of his 18-year LLNL career. He won the award for providing the dominant solution to a 60-year-old problem in weapons design that is euphemistically called "energy balance." The implication is that underground nuclear tests will no longer be required to establish this empirical parameter and the design uncertainty associated with this phenomenon has been significantly reduced.
Neil Joeck, a 25-year Lab veteran in Z Division and the Center for Global Security Research, has conducted career-long work on weapons of mass destruction in South Asia, a subject in which he is recognized as a world expert in the academic community, the U.S. government national security community, and South Asia political circles. Joeck's seminal work in 1995 and 1998 at Z Division, in 2001 and 2002 at the State Department, in 2005 at the National Security Council, and in 2010 as National Intelligence Officer for South Asia provided unique insights, which drove senior U.S. government officials to formulate and implement policies that helped to reduce the nuclear and terrorist threat in South Asia.
Twenty-eight year Lab veteran Nino Landen has made outstanding experimental and analytical contributions to inertial fusion and high-energy-density plasma physics. He has demonstrated sustained innovation in x-ray based plasma experimental techniques and analysis. Landen's key areas of research have included short-pulse laser–plasma interaction, radiation transport experiments, and ignition tuning as part of the National Ignition Campaign.
Ken Moody, a 26-year Laboratory veteran, joined the Heavy Element Group in 1985 and has been a critical member of the team to discover six new elements — 113 through 118. In addition, he has added more than 40 new isotopes to the chart of nuclides. Trained under Glenn Seaborg, Moody has dedicated his career to the scientific advancement of radio- and nuclear chemistry for the scientific and programmatic communities. In addition, Moody is one of the creators of the discipline of nuclear forensics, and applications of radiochemistry to national security and law enforcement problems.
Bruce Remington joined the Lab as a physics postdoc in 1986 and two years later he joined the laser program (now NIF) and has been there ever since. His achievements span three major areas of high-energy-density physics. He performed seminal experiments in inertial confinement fusion; led the creation and development of the High Energy Density Laboratory Astrophysics (HEDLA) project through scientific achievements and the mobilization of an international community; and pioneered the use of lasers to achieve ultrahigh pressure, ultrahigh-strain-rate (deformation) conditions in solid materials, also known as material dynamics at extreme pressure and strain rate.
Dmitri Ryutov officially joined the Lab in 1994 but has closely collaborated with Lab physicists since the 1980s. He is recognized nationally and internationally for his contributions to fusion science and plasma physics research. During his decades-long research career in the United States and the former Soviet Union, he has made seminal contributions to magnetically confined fusion, space and astrophysical plasmas, and other applications of plasma physics and general physics. Ryutov's broad knowledge of general physics, combined with his talent for doing analytic calculations that are both relevant to and important for a given subject, has allowed him to identify and solve important problems in areas well outside of plasma physics.
Tom Slezak came to LLNL as a summer student in 1974, working part-time during the school year and full time during the summer. He joined the Lab as a full-time computer scientist in 1978, working for what was then called the Bio-Med Program. He eventually went on to work on the Human Genome Project, pioneering the use of what came to be called "bioinformatics" in DNA physical mapping, and was part of the team that built the Joint Genome Institute in Walnut Creek. In 1999, he was tasked to build a pathogen bioinformatics team that went on to build the BASIS system to provide wide-area monitoring for bioterrorism. His team also worked to create the nation's BioWatch system in early 2003.
Left to right: John Lindl, Mordy Rosen, Ben Santer, and Cary Spencer.
John Lindl has more than 38 years of exceptional contributions in plasma physics, high-energy-density physics, and inertial confinement fusion research, as well as significant scientific management experience. John joined the Laboratory in 1972 as a physicist after receiving his bachelor's degree in engineering physics from Cornell University and a Ph.D. in astrophysics from Princeton. In 1990, he was selected as program leader of the Nova Laser Program. His integrated model for ignition served as the basis for the Nova Laser program, which was designed to test the key physics issues and to ultimately set the design requirements for the National Ignition Facility.
Rosen's 35-year career at the Laboratory began when he was hired by former director John Nuckolls into X-Division (ICF design) in 1976. Not only did Rosen design the first demonstrated Laboratory soft x-ray laser in 1984, he led X-Division during in the 1990s when the Nova Technical Contract was completed, leading to DOE's final approval of NIF construction. Other achievements include design and analysis of many of the first laser-driven HED physics experiments, key contributions to solving the 50-year-old energy balance problem in nuclear testing, recent important contributions to understanding the very difficult and crucial boost physics problem and many significant theoretical contributions during the past 20 years to understand ICF experimental results at the Nova, Omega, and NIF laser facilities.
Ben Santer, a world-renowned expert in the climate change research community, joined the Lab in 1992. Ben was named a DMTS in recognition of his history of distinguished scientific achievements, his impact on the scientific community, and "for fearlessly providing objective scientific advice to policy-makers." Ben's research focuses on climate model evaluation, the use of statistical methods in climate science and the identification of natural and anthropogenic "fingerprints" in observed climate records. His work has had major influence on the field of climate-change attribution. He has worked in the Laboratory's Program for Climate Model Diagnosis and Intercomparison for nearly 20 years and is a frequent contributor to Congressional hearings on the science of climate change.
Cary Spencer joined the Lab in 1981, when he was hired by then Director George Miller as a nuclear designer. In that capacity, he participated in a number of nuclear weapons programs and was a key designer on six nuclear tests. In 1993, he began working to advance the intelligence community's and the policy community's technical understanding of foreign nuclear weapons systems capabilities and articulating the implication for U.S. national security. He skillfully uses U.S. nuclear weapons codes and data to conduct rigorous, physics-based all-source analysis of foreign nuclear weapons systems. In addition, Spencer's technical expertise across a wide range of topics related to foreign nuclear weapons systems is unparalleled, and he is a widely recognized leader and mentor in the U.S. and United Kingdom national security communities.