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Retired Fellows

Retired Fellows and their Biographies, listed by year of induction.

2018

James Boncella

James Boncella of the Chemistry division made the seminal discovery of the first set of nitrogen analogs of the ubiquitous uranyl ion. For decades, many other researchers sought to synthesize these complexes but were unsuccessful. Indeed, calculations even showed that they were unstable and not isolable. His elegant and simple synthetic technique paved the way for a resurgence in the actinide field to better investigate the concept of covalency in actinide-ligand bonding. His body of work with uranium imido complexes has established him as one of the world’s foremost authorities on fundamental actinide chemistry. He is a Fellow of the American Chemical Society and has published 129 manuscripts. In his 15 years at Los Alamos, Jim has mentored over 20 postdoctoral researchers and three graduate students.

2016

Dean Preston

Dean Preston, of Materials and Physical Data is recognized as a leader in the field of shock compression theory. Preston has made significant contributions leading to a better understanding of material strength at very high strain rates.

2017

Stephen Doorn

Stephen Doorn of the Laboratory’s Center for Integrated Nanotechnologies is a world leader in the field of carbon nanotube spectroscopy, establishing the first spectroscopic structure assignments that are universally used today and, more recently, pioneering the development of doped carbon nanotubes as tunable and bright quantum emitters in the near-infrared. In addition to authoring or co-authoring 130 publications with more than 6,500 citations, Doorn has also made important contributions to the leadership of nanoscience at Los Alamos and played a critical role as a mentor to young scientists.

2015

Michael Bernardin

Michael Bernardin is considered the nation’s expert in electromagnetic pulse (EMP) physics created by high-altitude nuclear detonations, and he is nationally recognized for his understanding of weapons physics.  He has authored or co-authored more than 250 classified publications. His expertise is solicited at the highest levels, representing the Laboratory and National Nuclear Security Administration through his testimonies to various committees and assessment teams. The NNSA Defense Programs Advisory Committee considers Bernardin “highly credible with an unimpeachable standard for technical credibility.”  Bernardin co-founded the Theoretical Institute for Thermonuclear and Nuclear Studies (TITANS) program to train and sustain nuclear weapons scientists when nuclear testing ceased, and was the principal author of its textbook.  Since its inception, more than 600 scientists from across the Laboratory have attended TITANS classes, bringing a new generation of talent into the Laboratory’s core mission.  

Carlos Tome

Carlos Tome is known as one of the world’s leading experts in the micromechanics of polycrystalline metals and possesses an outstanding publication record, with more than 11,000 citations that have far-reaching and influential impacts.  He has co-authored a now-classic reference book in the field of materials modeling, Texture and Anisotropy, a book with more than 1,400 citations.  His influence outside of Los Alamos is extensive. For example, a symposium was held in his honor in 2011 at The Minerals, Metals, and Materials Society (TMS) annual meeting, which included more than 90 presentations by researchers from all over the world.  TMS’s Structural Materials Division awarded the 2013 Distinguished Scientist/Engineer Award to Tome.  The theories, models, and numerical codes that he has developed with colleagues are widely used by academia, national laboratories, and industry. 

2014

David Moore

David Moore’s  laser shock experiments have opened the field of materials at extremes in pressure and temperature to a wide range of researchers. He has made it possible to study shocked materials in research labs with tabletop lasers, as well as to use de minimus quantities of materials to map out their equations of state under extreme conditions. Moore has contributed also to the lab through a continuous record of community service through mentoring and committee work, exemplified by Fellowship in the American Physical Society and International Union of Pure and Applied Chemistry, as well as a Los Alamos Fellows Prize for Leadership. He has contributed to national security through his work on explosives detection and by his work with a team initiating the lab’s homemade explosives course. Moore has performed high-impact work on national security in both the weapons program and the threat reduction directorate.

John Gordon

John Gordon has 18 years of distinguished service at Los Alamos where he has become an international leader in inorganic chemistry and chemical transformations. He has excelled in three disparate areas of inorganic chemistry; modern f-element chemistry, energy production and storage, and advances in conversion of biologically derived carbohydrates into chemical feedstocks and fuels. For his internationally recognized research, Gordon has been named a Fellow of the AAAS, a Fellow of the Royal Society of Chemistry and he also received a Los Alamos Fellows Prize for Leadership in Science. His research has resulted in fundamental discoveries, he has maintained a high level of achievements in programs important to the laboratory, and he has become a recognized international authority in his field.  Gordon served as a group leader in the Chemistry Division before making a return to research in chemistry related to energy applications. He is also known for his strong mentorship, having served as mentor or co-mentor for 19 post-doctoral researchers, five of them becoming successful and independent Laboratory staff members. Gordon was recognized for this with a 2011 Exceptional Mentor Award.

2013

Frank Pabian

Frank Pabian, of the International Research and Analysis group, is internationally recognized for his support of global security. A geospatial and remote-sensing specialist, Pabian is renowned for developing and applying new methodologies and science-based solutions to nuclear nonproliferation. Pabian’s extensive nonproliferation intelligence and satellite-imagery analysis garnered notable awards from the Central Intelligence Agency (gold medal) and he was among the first analysts to be named to the Director of National Intelligence’s collaboration network Hall of Fame. He won multiple Distinguished Performance Awards from Los Alamos. In Iraq, Pabian served as Nuclear Chief Inspector for the United Nation’s International Atomic Energy Agency (IAEA). He helped locate, map and evaluate weapons of mass destruction development for the IAEA, and his work helped secure a Nobel Peace Prize for the nuclear watchdog. 

Cheryl Kuske

Cheryl Kuske, environmental microbiologist, built a world-renowned research program that touches many scientific areas important to Los Alamos National Laboratory: biothreat detection, climate change ecology, environmental bioremediation, microbial genetics and genomics and information science and technology. An international leader, Kuske is a pioneer in the field of microbial ecology, and her understanding of complex microbial communities in the environment led to major developments in biodefense and national security, including biothreat detection technologies that can be used in the field.  Kuske’s expertise with difficult-to-culture and genetically diverse acidobacteria (abundant in soils) laid the foundation for important molecular research. Cited approximately 7000 times in articles in which she is often first author, she has continually supported scientific growth and success at the Laboratory, recruiting and mentoring many of our best young researchers. Kuske won the Laboratory’s Fellows Prize and Distinguished Patent awards.

2011

Michael Maclnnes

Michael MacInnes, of the Applied Physics Improvised Foreign Design Group, is a leader in nuclear weapons evaluation who has developed and refined the science of weapons assessment, and introduced new diagnostic capabilities into our evaluation arsenal. MacInnes’s deep understanding of the breadth of nuclear science, radiochemistry, weapons physics, and experimental science at the Los Alamos Neutron Science Center (LANSCE) and critical assembly facilities contributes consistently to weapons program requirements and global security programs. His insight into radiochemical analyses and development of new metrics utilizing available data from the test program has lead to new evaluation diagnostics, increasing the fidelity of radiochemistry as a tool. MacInnes represents one of a very few technical experts who has the stature to affect national policy relating to the evaluation of nuclear weapons. MacInnes received a Letter of Appreciation from Steven Aoki, deputy under secretary of energy for counterterrorism, for service as project leader for nuclear counterterrorism in 2010. He has contributed to numerous classified reports, publications and proceedings. MacInnes received the Defense Programs Award of Excellence recognition for contributions to the Stockpile Stewardship Program, the W-76 Dual Revalidation Project, and the Divider Radiochemical Diagnostics Project; a Lab Distinguished Performance Individual Award, a Lab Distinguished Performance Small Team Award as a member of the Fission Basis Team, and three Lab Distinguished  Performance Large Team Awards as a member of the National Technical Nuclear Forensics (Attribution) Simulation Team, the Combined Nuclear Test Response Team, and the EDOTX for Attribution Team; the NNSA Recognition for Excellence; and two awards from the National Intelligence Council.

Mike Leitch

Mike Leitch, of the Subatomic Physics Group, is an internationally recognized leader in the study of nuclei and nuclear interactions involving quarks and gluons. One of his letters of reference called labeled him "the" world expert on how binding a nucleon within a nucleus affects the nucleon’s ability to produce heavy quarks in high-energy collisions. He is recognized as the leading experimental expert on the effects of nuclear matter on production and propagation of bound states of heavy quark-antiquark pairs. Such pairs are a key probe tool of color screening in quark gluon plasma and have been discovered to be suppressed in high-energy heavy ion collisions. The fact that Leitch holds several of the most important scientific leadership roles within the PHENIXPhysics Working Group on heavy quarks demonstrates the high esteem in which the community holds him. He has given 45 invited talks, delivered several plenary lectures at top international conferences, and has over 200 publications with more than 13,000 citations (12 having more than 250 citations each). He was elected a Fellow of the American Physical Society in 2001.

Amit Misra

Amit Misra has had a tremendous impact on the field of structural materials. He has pioneered the development of metal nanostructured multilayers for a range of structural applications, and he has defined this class of materials as a critical platform for understanding the underlying principles that drive new discoveries. His work on plastic flow stability provided insight into the development of damage-tolerant nanocomposites that is being explored in the Energy Frontier Research Center at Materials and Irradiation Extremes, for which he serves as codirector. Misra has also explored thermal and irradiation stability of nanolayered materials. Through this work, he discovered that interfaces can trap and annihilate radiation-induced point defects, which has significant implications for the design of new radiation tolerant materials. Another important discovery made by Amit was his research on nanometer-spaced preferentially aligned twins in sputter-deposited face-centered cubic metals is expected to lead to the development of high tensile strength electrical conductors. His cumulative work earned him a 2008 Lab Fellows Prize for Research and has been published in more than 220 peer-reviewed journal articles (in excess of 2,400 citations) and five book chapters.

Richard Martin

Richard Martin, of the Theoretical Division’s Physics and Chemistry of Materials Group, is an international leader in electronic structure theory of molecules and solids. He has done seminal work on electronic properties of actinides, transition metal complexes, and polymers using density functional theory, relativistic effective core potentials, and excited state theories. His groundbreaking density functional approaches are used in VASP, the most widely used suite of programs for band structure calculations of solids. He has 183 publications, 6 book chapters, and nearly 7,300 citations. He is a fellow of AAAS and received a DOE Award of Excellence (Pit Lifetime Assessment Team). He was a member of the DOE Advisory Team for the NWCHEM Review, a member of the NSF Alliance Allocations Board and the National Resource Allocations Committee, a panel member of several DOE/BES workshops, and editor of the Wiley Series in Theoretical Chemistry. Martin also is a consultant to DuPont. Bill Goddard (Caltech, NAS member) states that Martin "has proved to be a virtuoso in developing first principles quantum methods" and refers to him as "one of the best in the world for such difficult problems." Alfred Sattelberger (Argonne Associate Laboratory Director) affirms that Martin is "one of the key reasons that Los Alamos is regarded as the top chemistry organization in the entire DOE complex."

2010

Giday Woldegabriel

Giday Woldegabriel is co-leader of an international research team responsible for discovering the oldest nearly intact skeleton of Ardipithecus Ramidus, who lived 4.4 million years ago. “Ardi” is the earliest skeleton known from the human branch of the primate family tree; its discovery provides new insights into how hominids may have emerged from an ancestral ape. The discovery and associated research were named Science magazine’s Breakthrough of the Year for 2009 and Time magazine’s number one science story of 2009. Woldegabriels’ key scientific contribution to this discovery is the geologic interpretation and geochronologic dating of the strata in which the fossils were found. Additionally, he was instrumental in facilitating the entire field investigation that enabled the discoveries and interpretation of the flora and fauna of the time period in which the early hominid existed. Woldegabriel’s most recent work includes invaluable geology-related contributions to multiple programs. His work has helped track migration of radionuclides in groundwater, geothermal energy exploration, and carbon management of fossil fuel combustion byproducts. His work has led to substantially increased understanding of the complex volcanic structure and evolution of the Pajarito Plateau and the Nevada Test Site. Woldegabriel received the Fellows Prize for Research in 2001, and has nearly 45 publications and about 1,500 citations to his credit.

Brenda Dingus

Brenda Dingus has pioneered work in gamma-ray bursts and is a major contributor to the relatively young scientific field of very-high-energy gamma-ray astronomy. As someone at the forefront of her field, she is described as being peerless. Dingus’s seminal contributions span two decades, from her discovery of the high-energy component of gamma-ray burst emissions to her current work developing the next generation of all-sky, ground-based gamma-ray detectors. In 2006 she was elected a Fellow of the American Physical Society, and in 2000 she received the Presidential Early Career Award for Scientists and Engineers. Dingus has more than 100 publications to her credit with more than 7,600 citations.

Dipen Sinha

Dipen Sinha is known for his expertise over a wide range of disciplines, including low-temperature physics, ultra high-speed measurements, infrared detector arrays, organic thin films, biomedical instrumentation, acoustics, and geophysics. One of his major accomplishments is the development, refinement and exploitation of Swept Frequency Acoustic Interferometry (SFAI), a technique for noninvasive characterization of fluids. Applying theory and novel instrumentation, Sinha extended this technique to allow noninvasive interrogation of fluids in sealed containers. His work has enabled wide application of SFAI to national security missions, including chemical and biological warfare treaty verification, and rapid identification of chemical and biological warfare agents inside sealed munitions. In 2005, Scientific American identified his bioweapons detection work as one of the top five inventions in acoustics. Applying additional creative and innovative ideas to nonlinear acoustics, his work is being applied to remote landmine and concealed weapons detection. In the fields of medicine and biology Sinha’s work has led to development of the Acoustic Flow Cytometer, which recently was licensed by a pharmaceutical company for detection of and discrimination between benign and cancerous breast tumors. He has won three R&D 100 awards, the Lab Distinguished Licensing Award, and twice received the Distinguished Patent Award.

2009

Tom Picraux

Tom Picraux is known internationally for the use of energetic ion beams for the characterization of materials, as well as for his advances in surface processing and epitaxy. Using his quantitative ion beam analysis developments, he and his group pioneered the use of surface probes of the plasma edge to diagnose conditions in U.S. and European tokamak experiments in fusion energy. He and his colleagues pioneered the field of ion implantation metallurgy, creating a standard process for fabrication in the semiconductor industry.

Joachim Birn studies complex plasma physics phenomena and reconnection, particularly in the Earth's magnetosphere and solar corona. His development of a physical model of the static terrestrial magnetotail and the most comprehensive magnetohydrodynamic computational model for the dynamic magnetotail are used as benchmarks for many calculations of magnetotail dynamics. His research has been valuable to the Laboratory's nuclear-test-detection satellite programs, and his work is significantly increasing the accuracy of predictions for the behavior of energetic electrons from high-altitude nuclear explosions.

Patrick L. Colestock is an expert in basic and applied plasma physics and the physics of intense charged-particle beams. He has made pioneering contributions to the historic cyclotron resonance heating experiments on the Tokamak Fusion Test Reactor and the Princeton Large Torus. He also helped optimize the performance of the Main Ring and Tevatron at Fermilab.

Lowell S. Brown has made many contributions to physics, from quantum field theory and particle and nuclear physics to gravitation and astrophysics, cold atom traps, and fully ionized plasmas. His research has spanned an era from the rise of ion beam science to current breakthroughs in nanoscience. His textbook on quantum field theory is quickly becoming a classic.

2008

Robert Albers

Robert C. Albers is an internationally recognized expert on the role of electronic structures on the physical properties of complex materials. His pioneering work has greatly contributed to the Laboratory's leadership in understanding the electronic structures of actinides and other metals and alloys.

2007

Harvey Rose has a sustained record of contributions in plasma physics, fluid dynamics, and statistical physics.

2006

Jane E. (Beth) Nordholt has an international reputation in space science, having developed mass spectrometry and concentrator instrumentation deployed on the NASA Cassini, Deep Space 1, and Genesis missions. In addition, she has made substantial, high-level contributions to intelligence community programs and is recognized and acknowledged for work in quantum cryptology.

Petr Chylek is a world-recognized expert in optical sciences, aerosol physics, atmospheric science, and climate change research.

2005

Gary Wall is a leader in the nuclear weapons program, developing primaries that incorporate insensitive high explosives, a major safety enhancement.  He was the lead designer for several nuclear tests and a member of the design team for 25 additional tests.  He was a member of the original design teams certifying the W76, W80, and B61 systems, three of the five systems in the US stockpile.  He is also a leading weapons expert external to the Laboratory (e.g., JASONS, STRATCOM, JOWOG s, NNSA, DoD, and a charter member of the Nuclear Emergency Search Team).

Dan Winske is recognized for his seminal and definitive work in the field of basic plasma physics and its application to both laboratory and space plasmas.  He is widely considered to be a founding father of hybrid simulations of space plasmas, and his codes are among the most widely used and emulated tools for the study of intermediate scale dynamics in these media.  He has been instrumental in the Laboratory s efforts to understand the effects of nuclear explosions in space and he has made significant contributions to uncovering the effects of plasma turbulence on the early expansion phase of nuclear explosions in the ionosphere.

James Theiler has been critical to the success of the key remote sensing programs at the Laboratory, being the lead theoretical developer of the GENIE algorithm and instrumental in correcting motion problems in ALEXIS.  He is lead author on a series of highly cited papers that introduce the surrogate data method, which has now become a widespread and standard tool in Nonlinear Time Series Analysis.  He played an important role in tracking the history of the HIV virus.  He has 132 publications that have been cited over 3000 times.

Alexander Balatsky is a world-renowned expert in the theory of high-temperature superconductivity, heavy fermion systems, and nanoscience.  He developed a theory of impurities in unconventional superconductors, which was recently validated in scanning-tunneling microscope experiments; he was instrumental in developing new local spectroscopic techniques for these systems.  He has published over 100 papers that have been cited over 2500 times. 

Andrew Hime is one of the leading physicists in the world in the field of weak interactions.  His recent work has led to the discovery of neutrino mass one of the most important discoveries in physics during the past several decades.  Indeed, it is unusual to be a principal author of the most cited article in a calendar year (2003) in all of science.  His papers have over 3600 citations.  Among Hime s other credits is the resolution of the 17-keV neutrino anomaly.

Michael Baskes developed an important new theoretical approach to predict the behavior of metals and alloys, including transition metals and actinides in the solid, liquid, and amorphous states.  He has been able to simulate and predict the behavior of materials surprising well, ranging from the diffusion of hydrogen in metals to the phase stability of Pu and Pu-Ga alloys as well as modeling the plasticity of polycrystalling metals.

2004

Byron B. Goldstein was recognized for his contributions in the field of mathematical immunology and cell biology, specifically in modeling cell signaling cascades, pursuing cutting-edge research in cell activation, cell-signaling, cell surface receptor-ligand interactions, and the generation of allergic responses.

Alan Bishop was recognized for his major contributions in the areas of solitons and low-dimensional materials, quantum complexity, nonlinear excitations in structural and magnetic transitions, collective excitations in low-dimensional materials, and complex electronic materials with strong spin-charge-lattice coupling.

Richard I. Epstein was selected for his pioneering efforts in high-energy astrophysics-cosmic rays, neutron stars, and gamma-ray bursts; nuclear astrophysics-supernova and the origin of elements; and his substantial contributions to the field of optical cooling of solid-state media.

2003

Robert S. Hixson was named for his exceptional basic and applied research in shockwave physics. He has spent the last two and a half decades focusing on experiments to determine the equations of state and constitutive properties of materials under extreme conditions. His work on the shock response of plutonium has been an essential element of stockpile stewardship and he played a leading role in the design and implementation of a gas-gun capability for plutonium at Technical Area 55.

Quanxi Jia, working in the areas of superconductivity, magnetic materials and thin-films, has conducted pioneering research in complex oxide thin film growth and is a recognized leader in the field of electronic device fabrication. Some of his important contributions include the development of high-performance Josephson Junctions in superconducting quantum interference devices (SQUIDS) and the invention of fabrication methods for multi-layer thin films used to develop novel microwave devices.

Carol J. Burns was honored for her seminal contributions to transition metal and actinide coordination and organometallic chemistry. Burns has a number of "firsts" which have resulted in her international reputation, including the preparation and characterization of the first uranium (VI) monoxo compounds and first reactive uranium imido complexes, and uranium phosphinidenes. The 2003 Fellows Prize recently recognized the importance of this work and its impact on the field of actinide chemistry.

Arthur F. Voter was named Laboratory Fellow for research on increasing the power and quality of atomistic simulation methods. In particular, his work on methods for accelerating molecular dynamics (hyperdynamics and temperature-accelerated dynamics) have allowed the world to perform materials simulations on much longer time-scales than has previously been possible -- time scales at which processes such as metallic surface diffusion, protein or polymer folding and surface growth occur.

 R. Brian Dyer was named Laboratory Fellow for having attained international recognition in the application of time resolved vibrational spectroscopy to protein folding, the functional dynamics of redox metalloproteins and electron transfer reactions of inorganic model compounds. Dyer's impact on these fields is perhaps most notable in his work on protein folding, where he developed techniques that now allow for the study of early events in protein folding.

2002

Harry A. Crissman was recognized both for his role in the development of the widely used flow cytometry technique and his expertise in cell biology.

2001

John B. Bdzil was named Laboratory Fellow for having attained international recognition in the field of detonation theory. His work has had an impact on many of the important theoretical developments in detonation theory over the last 30 years. Bdzil's detonation shock dynamics method has become the recognized standard for highly accurate numerical modeling of detonation in high-explosive systems. This work has improved the Laboratory's ability to model the behavior of complex explosive systems.

Thomas C. Terwilliger was recognized for his outstanding work in the development of the computer program SOLVE, which enables the creation of automated solutions of protein crystal structures from x-ray diffraction data sets. He also has been a leader in the development of a new field called "structural genomics," which aims to discover the three-dimensional shapes of all proteins in nature. He is the leader of a worldwide consortium of more than 250 scientists applying the ideas of structural genomics to find new anti-tuberculosis drugs by identifying the structures of proteins from mycobacterium tuberculosis. Terwilliger is an American Academy of Arts and Sciences Fellow and a recipient of the Presidential Young Investigator Award, a 1998 R&D 100 Award, and a Los Alamos Distinguished Copyright Award.

Joe D. Thompson was honored for his efforts in discovering and understanding unconventional forms of superconductivity and magnetism that have contributed substantially to Los Alamos' reputation as a center of world-class materials research. Thompson is a Fellow of the American Physical Society and has received awards for his work from the Laboratory, the Department of Energy, and the Japan Society for the Promotion of Science. He is one of the top 150 most frequently cited physicists in the world.

Merri M. Wood-Schultz was honored for major contributions to the Laboratory's nuclear weapons program, particularly for her work in weapons certification both before and after the cessation of nuclear testing. She has distinguished herself as a foremost expert on the physics certification of the secondaries of nuclear weapons and is widely recognized for her important contributions in nuclear weapons intelligence. She has served as a long-time steward of a stockpiled thermonuclear weapon system and in that capacity has pioneered the technical management of emerging weapons issues.

Paul J. Jackson was recognized for his creative, highly regarded research in the fields of molecular and cellular biology and his recent efforts in the area of biological threat reduction. He is responsible for developing novel applications and pioneering research tools used in the field including polymerase chain reaction-based and amplified fragment length polymorphism-based methods for the rapid detection and unambiguous identification of biological threat agents and other human and animal pathogens. Jackson came to Los Alamos as a Director's Funded Postdoctoral Fellow. He was awarded the Laboratory's Distinguished Patent Award in 1990 and is the co-author on five U.S. patents.

2000

P. Chris Hammel was recognized for his creative, highly regarded research in the competitive field of high-temperature superconductivity. Also a Fellow of the American Physical Society, Hammel received the Los Alamos Fellows Prize in 1995 for his frequently cited work elucidating the microphysics of copper-based high-temperature superconductors.

Mike Nastasi has developed a new method for surface modification of materials called plasma immersion ion processing, and received, among other awards, the 1995 Los Alamos Fellows Prize for his extensive research on ion-solid interactions. Nastasi is co-author of a widely used textbook, "Ion Beam Processing: Fundamentals and Applications," and edits a handbook on ion beam materials analysis.

Richard J. Hughes was named for having attained international recognition in the field of quantum information science. A Fellow of the American Physical Society known for his efforts in quantum cryptography and quantum computing, Hughes received the Los Alamos Fellows Prize in 1997 for his quantum information research, which brought quantum cryptography from a laboratory curiosity to a fieldable demonstration.

1999

Shiyi Chen was recognized for his breakthroughs in simulating turbulent flows, which have advanced the field of direct numerical simulation and understanding of turbulence at the deepest level.

Steve K. Lamoreaux was recognized for his many important, pioneering experimental studies of fundamental symmetries using neutrons and atoms and his successful first observation of the Casimir force.

Shimshon Gottesfeld has attained international recognition in the field of fuel cell technology, including the first complete treatment of the basic elements of water management in fuel cells.

Robert P. Weaver was recognized for his efforts to improve the predictive capability of radiation-hydrodynamics calculations and his standing as one of the foremost experts in the physics of thermonuclear weapons, both of which are widely acknowledged throughout both the national and international scientific communities.

1998

Edward E. Fenimore is a recognized authority in gamma-ray imaging, gamma-ray burst astrophysics, and treaty verification. His early patent of Uniformly Redundant Arrays, a high-energy imaging technique based on coded apertures, has become the standard technique for astronomical observations between 10 kilovolts and 1 megavolts. He also is widely recognized for his dedication to attracting and mentoring a wide range of students.

Joel M. Moss, who also recently received the prestigious Tom W. Bonner Prize, the highest honor given by the Division of Nuclear Physics in the American Physical Society, has made many contributions in the field of nuclear physics. His work has provided a great deal of insight into the sea quark distribution in nuclei and is generally regarded as one of the truly important research efforts in nuclear physics.

Jack G. Hills has made large contributions to Laboratory and international programs in astrophysics, interplanet science, and asteroid interdiction. He also is recognized worldwide as one of the major authorities in the field of stellar dynamics and has made seminal contributions to the quantitative understanding of interactions between binary and single stars in clusters.

1997

R. F. Benjamin has achieved significant accomplishments in inertial confinement fusion, fluid interfaces and shock waves, and other areas.

Bernhard H. Wilde is one of the foremost experts in nuclear weapons design and the physics of thermonuclear weapon operations.

R. Arthur Forster was recognized for developing new algorithms that make detailed photon radiography possible and performing the first weapons-converted production code and algorithms.

Michel G. Tuszewski is a recognized world leader in the field of plasma science, including magnetically confined plasmas for nuclear fusion and inductively-coupled plasmas.

Michelle F. Thomsen is a world-renown expert on the radiation belts of Jupiter, Earth's magnetosphere, and other areas of space physics.

Robert E. Ecke is an expert in such areas as pattern formation in rotation convection and turbulence in convection.