| John H. Booske
received the Ph.D. degree in nuclear engineering from the University
of Michigan, Ann Arbor in 1985, studying under Professor Ronald
Gilgenbach, and co-advised by Professor Ward Getty. He was a Research
Scientist at the University of Maryland, College Park, from 1985
– 1989. In 1990 he joined the University of Wisconsin faculty,
where he is currently the Duane H. and Dorothy M. Bluemke Professor
of Electrical and Computer Engineering.
Ever since the invention of the magnetron, there has been an unrelenting
demand for more powerful and efficient microwave sources. Since
the mid 1950’s it was recognized that vacuum devices designed
with thin sheet or “ribbon” electron beams would be
especially effective. In their “thin” dimension, these
beams easily fit in small, high frequency electromagnetic structures,
while their large other dimension accommodates large currents (for
high power) without exceeding the maximum current densities that
can be practically focused by magnetic fields. Unfortunately, it
was also discovered in the mid-1950’s that these sheet electron
beams are unstable in the uniform, axial magnetic fields commonly
used with many microwave vacuum tubes up through the 1970’s
and 80’s. Hence, they were abandoned as a potential solution
for high power millimeter-wave coherent radiation sources.
In the 1980s and 1990s, at the Universities of Maryland and Wisconsin,
respectively, John conducted, collaborated on, and directed research
showing that periodic magnetic fields will stably confine sheet
electron beams. This work is recognized as the enabling foundation
for numerous current projects developing high power, millimeter-wave
coherent radiation sources, for important applications in communications,
defense, and homeland security. Such projects include active development
programs at the Los Alamos National Laboratory, the Naval Research
Laboratory, and the Stanford Linear Accelerator Center.
Meanwhile, since the 1960s researchers studying the use of microwave
heating in materials processing occasionally reported observations
of anomalously-enhanced reaction rates in comparison to conventional
furnace heating. Lacking a credible theoretical explanation, these
results were generally dismissed as artifacts of inaccurate measurements.
In the 1990s, John directed research that experimentally confirmed
the existence of a previously-unknown effect, termed the ponderomotive
force, by which strong microwave fields can accelerate solid state
reaction rates. Working with students and colleagues at the University
of Wisconsin and the Institute for Applied Physics in Nizhny Novgorod
(Russia), computer simulations and theoretical analyses showed how
the mechanism can be understood in terms of solid state ionic transport
using solid state plasma concepts. This work has placed the discussion
of microwave-enhanced solid state reaction rates on a firm scientific
basis, and enlightened the consideration of microwaves for industrial
processing of materials. These fundamental insights, along with
studies of microwave absorption in ceramics and semiconductors are
regarded as key contributions to understanding how microwave radiation
energy couples to and is absorbed by materials during microwave
heating.
Currently, John is working with colleagues and students to pioneer
the application of microfabrication technologies for production
of high-power millimeter-wave and submillimeter-wave vacuum electronic
radiation sources. Through other collaborations, John has produced
detailed, fundamental descriptions of how phase distortion occurs
in traveling wave tube amplifiers.
John has also contributed as a leader and an educator. He coedited
and coauthored a leading reference book on vacuum electronics, Modern
Microwave and Millimeter Wave Power Electronics (Wiley-IEEE Press,
2005). He was a Guest Editor of a Special Issue of IEEE Transactions
on Plasma Science (2000). He served as Director of the UW-Madison’s
Materials Science Program from 2001 to 2005, leading a thorough
restructuring of the Program’s curriculum while building and
diversifying the Program’s faculty. He has established a reputation
for training graduate and undergraduate students who are highly
coveted in the vacuum electronics industry and graduate research
groups around the country. He led a national collaboration researching
innovations in microwave vacuum electronics as Co-Director of a
five-university, DoD-funded, Multi-University Research Initiative
(MURI) consortium (1999-2004). He is currently Director of a second,
five-year, five-university MURI consortium researching the nanoscale
physics of field emission cathodes and vacuum window breakdown effects
in high power microwave sources. He has been recognized for his
research creativity and pedagogical skills through numerous awards,
including the National Science Foundation’s Presidential Young
Investigator award, the University of Wisconsin Chancellor’s
Distinguished Teaching award, the University of Wisconsin’s
Vilas Research Associates faculty award, and the Bluemke Professorship.
In addition to the fields of vacuum electronics and microwave materials
processing, John has an active research interest in bioelectromagnetics,
collaborating on studies of microwave imaging of breast cancer tumors
and the use of pulsed electric fields to facilitate trans-membrane
molecular transport in biological cells. In 2007, John was elected
to Fellow grade in the IEEE.
Citation: for contributions to vacuum electronics and microwave
processing of materials.
John Booske can be reached at the University of Wisconsin-Madison,
Dept Electrical & Computer Eng, 1415 Engineering Dr, Madison,
WI 53706-1607; Phone: +1 608 262 8548; Fax: +1 608 262 1267; E-mail:booske@engr.wisc.edu
Simon R. Cherry
Simon R. Cherry, Ph.D. received his B.Sc.(Hons) in
Physics with Astronomy from University College London in 1986 and
a Ph.D. in Medical Physics from the Institute of Cancer Research,
University of London in 1989. After a postdoctoral fellowship with
Dr. Edward Hoffman at UCLA, he joined the faculty in the Department
of Molecular and Medical Pharmacology at UCLA in 1993. From 1998-2001
he was Associate Director of the UCLA Crump Institute for Molecular
Imaging. In 2001, Dr. Cherry joined UC Davis as a Professor in the
Department of Biomedical Engineering and Director of the Center
for Molecular and Genomic Imaging. In 2007, Dr. Cherry became Chair
of the Department of Biomedical Engineering at UC Davis.
Dr. Cherry’s research interests center around in vivo molecular
imaging systems. A focus of his research is the development of very
high resolution positron emission tomography (PET) systems for preclinical
imaging, in particular the development of the microPET scanner that
was subsequently widely adopted in academia and industry. Additional
interests include multimodality imaging, especially the integration
of PET with CT and MRI, and 3-D fluorescence tomography. Dr. Cherry
is a founding member of the Society of Molecular Imaging. He serves
on the Editorial Board of the journals Physics in Medicine and Biology,
Molecular Imaging and Biology, and Molecular Imaging. In 2006, Dr.
Cherry was invited to give the Henry Wagner Distinguished Lectureship
at the Society of Nuclear Medicine annual meeting and in 2007, Dr.
Cherry received the Academy of Molecular Imaging Distinguished Basic
Scientist Award. Dr. Cherry is the author of more than 150 peer-reviewed
journal articles or book chapters in the field of biomedical imaging.
He is also coauthor of the 3rd edition of the textbook Physics in
Nuclear Medicine.
Citation: For contributions to molecular imaging.
Simon Cherry can be reached at the Dept of Biomedical Eng, Univ
of California, 1 Shields Ave, Davis, CA 95616-8500; Phone: +1 530
754 9419; Fax: +1 530 754 5739; E-mail: srcherry@ucdavis.edu
Avraham Gover
Avi Gover holds the Ludwig Jokel Electronics chair
and is professor in the Physical Electronics Department of Tel-Aviv
University and head of the FEL Knowledge Center for Radiation Sources
in Ariel.
He is one of the pioneers in the field of Free Electron Lasers (FEL)
on which he has worked since 1977, when he started the theoretical
modeling of this class of lasers with Amnon Yariv at Caltech. His
expertise is in both theory and experiment. He participated in the
design of a number of FEL experiments with different kinds of accelerator
technologies in the US, and constructed an experimental FEL facility
based on an electrostatic accelerator in Israel.
Professor Gover has contributed to the development of numerous innovative
theoretical and experimental concepts related to free electron lasers.
These include the identification and study of the general FEL dispersion
relation (analogous to Pierce equation), the fundamental relations
of spontaneous and stimulated emission in FEL, Smith-Purcell FEL,
and Electrostatic Accelerator FEL. His theoretical and experimental
work on schemes and concepts of prebunched beam FEL revealed the
connection of “coherent emission” from bunched electron
beams to Dicke's superradiance of atomic medium. Based on this work
he developed the concepts and theory of superradiant and stimulated-superradiance
FELs.
In recognition for his outstanding contribution to FEL science and
technology he was awarded in 2005 the annual International FEL prize.
In Nov. 2007 he was awarded fellowship in the American Physical
Society for outstanding scientific achievements and leadership in
international cooperation in the area of Free Electron Lasers. Concurrently
he was awarded Fellowship in the IEEE .
Citation: for contributions to free electron lasers and superradiant
bunched e-beam radiators.
Avi Gover can be reached by E-mail: gover@eng.tau.ac.il;
Phone: +972-3-6408149
Yue Ying Lau
Y.Y. Lau received his SB, SM, and PhD degrees in Electrical
Engineering from the Massachsetts Institute of Technology in 1968,
1970, and 1973, respectively. From 1973 to 1979, he was an Instructor
and then an Assistant Professor in applied mathematics at MIT. He
was with Science Applications Inc., McLean, VA, from 1980 to 1983,
and with the Naval Research Laboratory, Washington, DC, from 1983
to 1992, as a Research Physicist at each. In 1992, he joined the
University of Michigan, Ann Arbor as a Professor in the Department
of Nuclear Engineering and Radiological Sciences, and in the Applied
Physics Program. He has worked on electron beams, coherent radiation
sources, plasmas and discharges. His contributions include: wideband
and low magnetic field operation of gyrotron amplifiers, multipactor
discharge, accelerator stability, diode physics (higher dimensional
and quantum), low noise magnetron, high power microwave sources,
Thomson X-ray sources, and heating phenomenology. He has nine patents
and over 170 refereed publications. He served three terms (1994-2005)
as an Associate Editor of the Physics of Plasmas, and was a Guest
Editor of the IEEE Transactions on Plasma Science Special Issue
on High Power Microwave Generation (June, 1998). He was elected
Fellow of the American Physical Society in 1986. He received the
1989 Sigma-Xi Scientific Society Applied Science Award, and the
1999 IEEE Plasma Science and Applications Award.
Citation: for contributions to electron beam devices, coherent radiation
sources, and discharge physics.
Y. Y. Lau can be reached at University of Michigan, Cooley Bldg,
Ann Arbor, MI 48109-2104; Phone: +1 734 764-5122; Fax: +1 734 763-4540;
E-mail: yylau@umich.edu.
Jane M. Lehr
Jane Lehr received the Ph.D. degree in Electro-Physics
from Polytechnic University- New York and a Bachelor’s of
Engineering from Stevens Institute of Technology. After several
years in industry, she joined the Air Force Research Laboratory,
Directed Energy Directorate in 1997. There, she continued earlier
work on the physics of electrical breakdown and switching. She made
key contributions toward advancing the state of the art of high
peak power, ultra-wideband radiating systems, including the compact
and fully transportable system known as JOLT, where she led the
pulsed power segment. She, along with several colleagues, was awarded
a patent for the high efficiency transformer design used in the
JOLT system.
In 2002, Dr. Lehr joined Sandia National Laboratories, Pulsed Power
Sciences Center. During the Z Refurbishment project, she performed
component evaluation and development and led the system assessment
test program and component development. Presently, she is again
focusing on the physics of electrical breakdown and high power switching.
Dr. Lehr has been an active IEEE volunteer. She has been a Guest
Editor for the IEEE Transactions on Plasma Science, an Associate
Editor for the IEEE Transactions on Dielectrics and Electrical Insulation,
Student Activity Chair for Region 6 and Albuquerque Chapter Chair.
She currently serves as President of the Nuclear and Plasma Sciences
Society.
Citation: For contributions to high power switches and the generation
of high power electromagnetic radiation.
Jane Lehr can be reached at Sandia National Laboratories, MS 1193,
PO Box 5800,Albuquerque, NM 87185-1193; Phone: +1 505 844 8554;
E-mail: jane.lehr@ieee.org
Tom K. Lewellen
Tom K. Lewellen is a Professor of Radiology and Electrical
Engineering at the University of Washington. He received a B.A.
in Physics from Occidental College in 1967 and a Ph.D. in Experimental
Nuclear Physics in 1972. After a postdoctoral fellowship designing
beam optics for neutron therapy applications, he joined the Division
of Nuclear Medicine at the University of Washington (UW) in 1974.
Dr. Lewellen is currently the director of the Physics group in the
Division of Nuclear Medicine (the group has 5 faculty, 6 scientific
staff, and several graduate students and postdoctoral fellows).
His major research interests are positron emission tomography (PET)
system development and improving methods for quantitative imaging
(both in PET and single photon emission tomography). The UW group
is currently working on design and construction of new high resolution
animal PET scanners and MRI inserts, improved quantitative data
corrections for 3D PET systems, faster Monte Carlo simulation software
for emission tomographs, and new data analysis techniques for a
wide variety of Nuclear Medicine studies. Past services for IEEE
include being the chair for the 1997 IEEE NSS/MIC, local arrangements
chair for the 1999 IEEE NSS/MIC, 2005 IEEE NSS/MIC general chair,
and NMISC chair from 2005 – 2007.
Citation: For contributions to nuclear medicine and positron emission
tomography imaging systems.
Tom Lewellen can be reached at Radiation, Nuclear Medicine, NW-0040,University
of Washington Medical Center, PO Box 357897, Seattle, Washington,
USA; Phone: +1 206 543-2365; E-mail:tkldog@u.washington.edu.
|
