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Seymour Sack in Livermore’s Defense and Nuclear Technologies (DNT) Directorate was one of three winners of the 2003 Enrico Fermi Award. At an awards banquet in October 2003, Sack received a gold medal and a citation signed by President George W. Bush and Secretary of Energy Spencer Abraham. He was recognized for “his contributions to the national security of the United States in his work assuring the reliability of nuclear weapons and thus deterring war between the superpowers.”
Sack, 74, received a B.S., M.S., and Ph.D. in physics from Yale University. He retired from the Laboratory in 1990 and continues as a Laboratory associate. During his 35 years at Livermore, he emerged as one of the foremost U.S. nuclear weapons designers. His weapon designs introduced insensitive high explosives, fire-resistant plutonium pits, and other important nuclear safety elements. Sack’s design concepts are found in all U.S. stockpile weapons.
The Fermi Award recognizes scientists of international stature for lifetimes of exceptional achievement in the development, use, or production of energy—broadly defined to include nuclear, atomic, molecular, and particle interactions and effects. One of the nation’s oldest and most prestigious science and technology awards, it dates back to 1956 and honors physicist Enrico Fermi, who in December 1942 led scientists at the University of Chicago in achieving the first self-sustained, controlled nuclear reaction. Information about the Fermi Award, prior winners, and their contributions is available online at www.sc.doe.gov/sc-5/fermi.

The American Physical Society (APS) has named Steve Hatchett of the Defense and Nuclear Technologies Directorate as an APS Fellow for his contributions to inertial confinement fusion (ICF). Hatchett is well known throughout the international ICF community for innovative implosion designs for fast ignition. These “cone focus” designs solve a critical issue—getting the fast ignition beam to the compressed fuel. Throughout his 20-year career at Livermore, Hatchett has been highly sought after as a collaborator, particularly by experimentalists. He is now working to identify opportunities and requirements for implosion diagnostics on the National Ignition Facility.

In October 2003, the American Ceramics Society (ACS) honored Livermore researcher Jack Campbell with the George W. Morey Award. The award cites Campbell’s “work and leadership in the development, characterization, and manufacturability of phosphate laser glass for high-peak-power lasers.” Campbell, now the group leader for Advanced Optical Materials for the National Ignition Facility (NIF), has been at Livermore since 1975. His early work involved the development of glass and polymer targets for the Laboratory’s Nova laser. For most of the past 20 years, his goal has been to develop ever-higher-quality optics needed to transport and amplify beams for Livermore’s various lasers.
The George W. Morey Award is named for a pioneer in the scientific study of glass. Morey, of the Carnegie Institution of Washington, systematically studied the composition and properties of a wide range of glasses, much of which is summarized in his classic 1938 textbook Properties of Glass.

T. G. Nieh of the Chemistry and Materials Science Directorate was recently named Fellow of the Minerals, Metals and Materials Society (TMS) for his expertise in superplasticity research. Superplasticity is the high-temperature deformation of metal and ceramics. Under normal room-temperature conditions, metal can be stretched so that it extends about 50 percent without fracturing. But when the metal is heated and its microstructure is modified, it can be stretched to 8,000 percent of its original length. Nieh discovered how to streamline the procedure and make it cost-effective so that it could be used on industrial assembly lines. Nieh’s solution turned out to involve adding nanometer-size second-phase particles to an alloy to refine its microstructure during the thermomechanical process.
In naming Nieh a fellow, TMS cited his “contributions to the understanding of superplasticity behavior of metals and ceramics, including high-strain-rate superplasticity and superplastic ceramics.” Although nearly 10,000 members from more than 70 countries belong to TMS, the society has no more than 100 living fellows at any time.

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UCRL-52000-04-1/2 | January 6, 2004