For his internationally recognized leadership in neutron diffraction and crystallography, his role in developing new diffraction facilities at both the High Flux Isotope Reactor and the Spallation Neutron Source, and his leadership of high-impact research programs in high-temperature superconductivity and thermoelectrics; for outstanding mentorship of many early career staff members; and for his representation of ORNL as a fellow in numerous professional societies.
For his innovative contributions to many facets of biofuel sciences focused on lowering costs across the fuel and bioproduct production life cycle, including breakthroughs in fermentation, bioproduct formation, bioprocessing, catalysis, and recalcitrance minimization; for his service (2011–2017) as the scientific coordinator for the BioEnergy Science Center based at ORNL; and for his representation of ORNL as a fellow of the American Institute of Chemical Engineering (AIChE) and Society for Industrial Microbiology and Biotechnology and his service on the AIChE’s Society for Biological Engineering board of directors.
For research that has revolutionized the field of scanning probe microscopy, breaking new ground in atom-scale nanofabrication by combining scanning transmission electron microscopy with artificial intelligence and machine learning methods, and for his representation of ORNL as a fellow in numerous professional societies.
For research that has revolutionized the design of epitaxial complex oxide thin films and heterostructures that deliver novel properties and functionality for a wide array of applications in energy; for his leadership of the Quantum Heterostructures Group in ORNL’s Materials Science and Technology Division; for his central role in the expanding the landscape of the National Quantum Initiative; for his representation of ORNL as a fellow of the American Physical Society; and for his outstanding reputation as a mentor.
For developing innovative, transformative architectures and software for high-performance computing that have been integral in the deployment and exploitation of the world’s most powerful extreme-scale, energy-efficient, productive high-performance computing systems for science; for his leadership of the Future Technologies Group in ORNL’s Computer Science and Mathematics Division; and for his representation of ORNL as a fellow of the Institute of Electrical and Electronics Engineers and a Distinguished Scientist Member of the Association for Computing Machinery.
For his leadership in separations science and technology; for improving nuclear fuel recycling and waste removal; and for leading the development process that was instrumental in the cleanup of waste at the Savannah River Site.
For innovative and fundamental contributions to the understanding of the interactions and transport of electrons in gases and liquids, negative ion processes, the interfacing of the gaseous and condensed phases of matter, and the use of fundamental knowledge in the development of gaseous dielectrics, radiation detectors, and pulsed power
For fundamental studies in radiation physics, radiation dosimetry, and surface physics and for pioneering theoretical work on collective electron modes, surface electromagnetic waves in solids, and elucidation of the interaction of charged particles with matter.
For original studies of the genetic effects of radiation in mammals. A world authority on mammalian mutagenesis, he and co-workers provided the experimental basis for estimating the genetic hazards of radiation to man and for the corresponding recommendations of national and international standards bodies