Sack in Livermore’s Defense and Nuclear Technologies
(DNT) Directorate was one of three winners of the 2003 Enrico
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
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.
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.
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
October 2003, the American Ceramics Society (ACS) honored Livermore
researcher Jack Campbell with the George
W. Morey 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.
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.
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
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.