Seven Lab physicists elected APS fellows
Seven Lab physicists have been named fellows of the American Physical
Society, one of the largest selections of fellows named from the Lab in
a single year.
Tomas Diaz de la Rubia, associate director for Chemistry and Materials
Science, was elected for his work in computational physics, notably "his
contributions to multi-scale modeling of materials and seminal research
on defect processes in solids under irradiation or high strain-rate conditions,"
according to the APS citation.
That seven researchers from Livermore were elected this year is a reflection
not only of individual talent and achievement, but of the Lab’s dynamic
research culture, de la Rubia said. "The Lab is a place where I have
been able to do cutting edge science that matters to the Laboratory and
the nation, and is recognized by my peers in the broad scientific community."
Yu-Jiuan Chen of the Fusion Energy Division of the Physics and Advanced
Technologies Directorate was named for her work in revolutionizing the
achievable beam quality of linear induction accelerators and advancing
the state-of-the-art of flash X-ray radiographic technology.
Chen, who has worked at the Lab since 1981 and is the Theory Group leader
in the Beam Research Program, said she didn’t know she had been nominated
for the APS Fellowship. She was nominated for her work in physics of beams.
"I was totally surprised," she said. "Then I started thinking,
‘Oh, there are a lot of people that are better qualified than me.’
But then when it sank in, I felt very honored to receive such recognition."
Forrest Rogers, a physicist in V Division of PAT who has worked at the
Lab for more than 30 years, was also surprised at the nomination for his
work in plasma physics."I’m honored to receive the recognition
from my peers for significant scientific achievement," he said.
Rogers was cited for developing the ACTEX equation of state and OPAL opacity
models and applying them to a range of astrophysical and laboratory plasma
problems including helioseismology, variable stars and laser shock experiments.
Rogers said he plans to continue his research in this area because it
"is the core subject matter of what the Lab does."
Barbara Lasinski, long-time A/X Division physicist of the Defense and
Nuclear Technologies Directorate, was cited by APS for "...development
and application of particle-in-cell codes for laser-plasma interaction
physics, and a long series of contributions to the understanding of the
physics of targets for high-power laser experiments."
Lasinski joined John Nuckoll’s X group in A Division and began laser-plasma
instability modeling for the laser fusion program during the 1970s. She
played key roles in the development of the Lab’s two main laser-plasma
codes and in their application to experimental issues on the Nova, PetaWatt
and Omega lasers. She conducted key radiation-hydrodynamic modeling in
support of high-energy-density experiments on Omega and planning for NIF.
Otto "Nino" Landen, acting associate program leader for ignition
physics experiments within the ICF Program of the National Ignition Facility
Programs Directorate, was cited for his work in picosecond laser-plasma
interactions, advanced diagnostics, X-ray driven inertial confinement
fusion implosions and time-dependent hohlraum symmetry control. He was
nominated for his work in plasma physics.
Landen’s most significant achievements have been in the fields of
implosion physics for indirect-drive inertial confinement fusion and short-pulse
laser-matter interactions.
In particular, he conducted and led the first demonstrations of indirect-drive
time-dependent hohlraum symmetry control at the level required for NIF
ignition capsules. He has also invented several new X-ray imaging and
spectroscopy techniques for diagnosing dense plasmas as found in ICF.
Andrew McMahan, a physicist in H Division of PAT for 28 years, was named
a fellow for his work in the computation of effective Hamiltonian parameters
for the super conducting copper oxides and phase transitions of materials
under high pressure, and the subsequent solution of the associated models.
He was nominated for his work in the computational physics category.
Donald Prosnitz, a physicist in the Nonproliferation, Arms Control and
International Security Directorate who is on leave from the Lab to serve
as chief scientist for the Department of Justice, was cited for his pioneering
work at the Lab in free electron lasers, part of the Strategic Defense
Initiative.
"The free electron laser research was the result of the cumulative
effort of a large group of creative and dedicated LLNL individuals including
scientists, engineers and administrative staff," he said. "The
whole team deserves credit for the work."
Prosnitz, who will return to the Lab in January, was nominated by the
forum on physics and society not only for his work at LLNL, but also for
his contributions to physics and society spanning fundamental physics
research to national security and law enforcement technologies that he
has performed at the Department of Justice.
The APS Fellowship Program was created to recognize members who have made
advances in knowledge through original research and publication or made
significant and innovative contributions in the application of physics
to science and technology. They may also have made significant contributions
to the teaching of physics or service and participation in the activities
of APS.
Each year, no more than one-half of 1 percent of the current membership
of the Society is recognized by their peers for election to the status
of fellow in APS.
Each new fellow is elected after careful and competitive review and recommendation
by a fellowship committee on the unit level, additional review by the
APS Fellowship Committee and final approval by the full APS Council. This
year a total of 192 new fellows were named.
To be nominated as an APS fellow, the nominee must be a member of APS
in good standing; obtain signatures of two sponsors who are members of
APS in good standing; submit a complete original nomination packet (signed
nomination and supporting letters) and one photocopy packet prior to unit
deadline. The deadlines vary for subject matter. The 2002 APS Fellows
will officially be announced in the March issue of APS News.