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Yves M. Acremann
Ultrafast Solid State Physics / Microscopy
PULSE Center at SLAC, Stanford;
Staff scientist
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Background
October, 2004-present: Staff
Scientist at the PULSE center, SLAC, Stanford
January, 2002 - October 2004: Research
associate at SLAC, Stanford
October, 2001: Ph.D.
exam, ETH Zurich, Switzerland
April, 1998 - October, 2001: Ph.D.
student at ETH Zurich, Switzerland
November, 1997 - April, 1998 : Diploma
at ETH Zurich, Switzerland
October, 1993 - October, 1997 : Physics
student at ETH Zurich
Interests
My research interests are dynamic processes in magnetism and time
resolved microscopy techniques. I am currently working on experiments
at the STXM at beamline 11 to image switching processes in spin
valves. I was involved in the development of time resolved x-ray
microscopy techniques at STXM as well as the PEEM at beamline 7.3.1.
I believe it is important that the ALS is a progressive yet user
friendly light source. |
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Weiwei Gu
Soft X-Ray Microscopy
Department of Anatomy, University of California - San Francisco, CA
94720
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Background
I am a research scientist at the department of Anatomy,
University of California - San Francisco. I obtained B.S. in biology
from the University of Science and Technology at China. My Ph.D.
in biophysics was obtained at the University of California - Davis.
The work in my Ph.D. thesis was done at the ALS and SSRL. Being an
ALS user since 1998, I am experienced in TXM, STXM and EXAFS/XANES,
mostly in biological systems. My current research employs soft x-ray
microscopy to study cell structures, such as yeasts and bacteria.
Interests
Biology in the synchrotron radiation field is growing. The cutting
edge technology such as x-ray microscopy and x-ray crystallography
has opened up new research directions and attracted lots of new users.
I would like to serve in the ALS Users' Executive Committee to make
ALS a better working environment for users in the biological and
biomedical fields. |
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Phil Heimann
Ultrafast Science and X-Ray Optics
Advanced Light Source, Lawrence Berkeley National Laboratory
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Background
B.S., Chemistry, University of Chicago, 1981
Ph.D., Physical Chemistry, University of California, Berkeley, 1986
Postdoctoral fellow, Technical University Munich, 1987-88
Postdoctoral fellow, Chemical Sciences Division, LBNL, 1988-90
Staff scientist, Experimental Systems Group, Advanced Light Source,
LBNL, 1990- present.
Interests
My research interests include the study of materials between the
condensed matter and plasma phases. I am interested in x-ray
monochromators and spectrometers. I am a beamline scientist
for the ALS ultrafast beamline 6.0 and was involved in the development
of the beamline from its beginning. |
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Olav Hellwig
Magnetic Nanostructures and Recording Media,
Soft X-Ray Magnetic Scattering and Imaging
San Jose Research Center, Hitachi Global Storage
Technologies, San Jose, CA
Research Staff Member
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Background
Diplom physika (M.S. in physics): Ruhr-Universität Bochum, Germany,
1997
Deutsches Staatsexamen (State examination – for teaching high
school and college)
Mathematics & Physic, Ruhr-Universität Bochum, Germany, 2000
PhD in Physics, Ruhr-Universität Bochum, Germany, 2000
Postdoctoral Fellow, IBM Almaden Research Center, Advanced Media, San
Jose, CA (2000-2003)
Staff Scientist, BESSY
GmbH, In-House Research, Berlin, Germany (2003-2005)
Research Staff Member, San Jose Research Center, Hitachi GST, Fundamentals
of Nanostructured
Materials (supervising postdocs and visiting students), San Jose, CA
(since July 2005)
Interests
After studying the epitaxy of MBE grown thin metal films for various
growth parameters in my Masters thesis, I focused during my PhD
time on the oxidation characteristics of single crystalline Nb(110)
films for applications in surface catalysis. For both studies I
used hard X-ray reflectivity and diffraction as key characterization
techniques with external experiments at the HASYLAB in Hamburg
as well as the ESRF in Grenoble. In the following postdoc time
my interests shifted from physical chemistry towards magnetism.
Being familiar with X-ray techniques, I started using soft X-rays
at the ALS for XMCD, magnetic scattering and imaging studies of
advanced magnetic recording materials as well as other magnetic
nanostructure systems that I sputter-deposited at the IBM Almaden
Research Center.
During my time as staff scientist at BESSY in Berlin I developed
together with the group of Stefan Eisebitt at BESSY and Joe Stöhr
at SSRL lensless magnetic imaging from coherent diffraction patterns
using Fourier Transform Holography in transmission geometry. Since
returning back to the US in 2005 I am applying XMCD based techniques,
such as scattering, microscopy and holography to problems in magnetic
data storage applications. In this context nano-structured magnetic
materials and systems are my center of interest.
If elected, one of my goals is to help the ALS to develop and extend
fruitful industry collaborations, while maintaining scientifically
high output levels. I think that there could be much more interaction
between industry, universities and user facilities, such as the ALS
with the goal to address challenging scientific problems in connection
with exciting new industrial applications. |
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Jay Nix
Macromolecular Crystallography
Molecular Biology Consortium
Advanced Light Source Beamline 4.2.2
Lawrence Berkeley National Laboratory
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Background
B.Sc. (Biochemistry and Molecular Biology) UCSC 1996
Ph.D. (Molecular, Cellular and Developmental Biology UCSC 2000
Post Doc, Lab of Harry Noller working on Ribosome Crystallography 2000-2003
Beamline Scientist/Beamline, Manager Molecular Biology Consortium 2003-present
Interests
My interests include the development of macromolecular beamline user
operations and instrumentation. My current focus is on the
development of remote collection capabilities and have reached
a major milestone with the installation and integration of a robotic
sample changer. We have been able to offer remote data collection
to both Consortium members and General Users since February 2007
and the capability has increased productivity of participating
labs as well as helping to reduce the carbon footprint of scientists
using the facility. I am also working on the automation of
data processing and structure solution at the beamline. I
have always appreciated the experience of performing science at
the ALS and it has been my pleasure to develop a close working
relationship with the other MX beamlines and floor staff. I
welcome the chance to serve the ALS while on the UEC. |
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Regina Soufli
EUV/X-Ray Optics and Materials ScienceLawrence Livermore National Laboratory, Physics and Advanced Technologies
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Background
Diploma in Electrical Engineering, National Technical University of
Athens, Greece (1992)
Ph.D. in Electrical Engineering, University of California, Berkeley
(1997)
Staff Scientist, Harvard-Smithsonian Center for Astrophysics, 1997-1999
Physicist, Lawrence Livermore National Laboratory, 1999-present
Interests
Regina Soufli has been an ALS experimenter for about 12 years. She
has worked at beamline 6.3.2. to study the atomic scattering factors
of materials in the EUV/x-ray energy region, and to develop and
test extreme ultraviolet (EUV)/x-ray optics for semiconductor photolithography,
solar physics, x-ray astronomy, and free-electron laser sources. Her
primary interests are: EUV/x-ray optics, instrumentation for astrophysics
and synchrotron applications, multilayer thin films, surface roughness
and scattering. If elected at the UEC she would try to facilitate
the interests of the ALS User community and promote world-class
science at the ALS. |
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Wayne Stolte
Atomic and Molecular Physics
University of Nevada, Las Vegas, Department
of Chemistry
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Background
Ph.D. (Physics) University of Nevada, Reno, 1994
B.S. (Geophysics) University of Nevada, Reno, 1987
B.S. (Geological Engineering) University of Nevada, Reno, 1987
Post-Doctoral Research Associate, Department of Physics,
University of Nebraska, Lincoln, 1994-1998 (with J.A.R. Samson)
Post-Doctoral Research Associate, Department of Chemistry, University
of Nevada, Las Vegas, 1998-2001 (with D.W. Lindle)
Associate Beamline Scientist for BL 9.3.1, Advanced Light Source, Lawrence
Berkeley National Laboratory, Berkeley CA, 1998-2001
Asst. Research Professor, Department of Chemistry, University of Nevada,
Las Vegas, 2001- present
Interests
Currently, I am interested in x-ray emission spectroscopy including
Resonant Inelastic X-ray Scattering on sulfur and chlorine containing
gas phase molecules. I have also had a strong interest in studying
photoionization of atoms and photofragmentation of molecules using
ion time-of-flight and magnetic mass spectroscopy techniques. Over
the last decade I have also played a major role in the upkeep and development
of beamline 9.3.1. I particularly enjoy the design and development
of new instrumentation to further my own research interests and the
interests of other users at beamline 9.3.1.
I am a long term user at the ALS, I have been doing research on
many different beamlines since 1994. Over that time I have
also harmoniously performed experiments or offered help to uncounted
ALS users from all over the world, allowing them to achieve their
goals in the limited time they had to do their experiments. If elected,
I will work to increase the level of user happiness.
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Lothar Weinhardt
Materials Science (currently) Postdoctoral Fellow, Department
of Chemistry, University of Nevada, Las Vegas
starting 1/1/2008: Teaching position at the University of Würzburg,
Germany
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Background
Diplom (Physics) University of Würzburg, Germany, 2001
Ph.D. (Physics) University of Würzburg, Germany, 2005
Postdoctoral Fellow, University of Nevada, Las Vegas, 2006-2007
Interests
Ever since my Diploma and PhD theses research in the group of Eberhard
Umbach at the University of Würzburg, I have been frequently
performing experiments at the ALS and at BESSY, especially during
my current post-doctoral research in the group of Clemens Heske
at UNLV. My research focuses on the investigation of the electronic
and chemical properties of surfaces and interfaces using soft x-ray
and electron spectroscopies. This covers both a basic science point
of view and an application-driven approach. I am interested in
applications related to renewable energies, including solar cells,
materials for hydrogen production, storage, and fuel cells, as
well as organic materials for electronic applications. I have been
involved in the development and use of novel instrumentation to
study liquids and bio-relevant materials using soft x-ray spectroscopies
at BL 8.0. In all of my experiments, I have learned that successful
experiments require outstanding support and infrastructure at the
synchrotron light source.
I believe that the UEC is a very important committee, voicing the
concerns and satisfaction of the user community, both internally
and externally. Based on my seven years of experience at the ALS
and at BESSY, I am very aware of the needs of outside users (e.g.,
experimental support, food, housing, transportation, etc.). I would
be very happy to be able to contribute this knowledge to preserve
the outstanding scientific conditions at the ALS as well as improve
them where needed. |
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Trevor Willey
Materials Science
Materials Science and Technology Division, Lawrence
Livermore National Laboratory
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Background
B. S., Physics, minor Mathematics, Utah State University, Logan Utah,
1997
Ph.D., Physics, University of California, Davis, 2004
Post-Doctoral Researcher, Lawrence Livermore National Laboratory, 2004-2006
Staff Scientist, Lawrence Livermore National Laboratory, 2006-present
Interests
My research interests involve using NEXAFS and other synchrotron-based
techniques to characterize self-assembled monolayers and group IV
nanoclusters. including work on both the electronic structure and
self-assembly of higher-diamondoids. We have also used small-angle
x-ray scattering and x-ray microtomography to study porous materials. I
have been an ALS user since the year 2000, primarily at beamline
8.0. I would like to give back to the ALS community by serving
on the UEC during exciting upcoming improvements in both operations
and user support at the ALS. |
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Petrus Zwart
Protein Crystallography
Berkeley Center for Structural Biology (BCSB)
Lawrence Berkeley National Laboratory
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Background
M.Sc. (Chemistry) University of Amsetrdam, 1999
Ph.D. (Crystallography) UNiversity of Amsterdam / EMBL-Hamburg 2003.
Postdoctoral Fellow at PX beam line X9B, NSLS, 2004
Postdoctoral Fellow, Lawrence Berkeley National Laboratory (Physical
Biosciences)/ 2005-2007
Beam line Scientist, sector 5 PX beam lines. 2007 - present
Interests
My research interests include crystallographic software
and methods development, design and execution of optimized data collection
protocols and utilization of weak anomalous scatterers in phasing.
I am particularly interested in crystallography of samples that exhibit
pathologies such as twinning and pseudo symmetry.
On beam lines 5.0.1, 5.0.2 and 5.0.3 I see a large number of industrial
and academic crystallographers, and if elected, will do my best to
represent their interests in the UEC. |
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Student Candidate |
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Anne Sakdinawat
X-Ray Microscopy and Life Sciences
University of California Berkeley/University of California San
Francisco, Bioengineering
Center for X-Ray Optics, Lawrence Berkeley
National Laboratory
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Background
B.S. Electrical Engineering and Computer Sciences & Bioengineering,
University of California Berkeley, 2002
Staff Research Associate, University of California San Francisco, 2002-2003
Graduate Student, University of California Berkeley and University
of
California San Francisco, Bioengeering, 2003-present
Interests
My research interests include developing new x-ray imaging methods
that
can be used to study biological systems and materials. I am especially
interested in the use of various diffractive optical designs to enable
high-resolution, contrast-enhanced imaging techniques. I have been
involved in experiments at beamlines 6.1.2, 12.0.2, and 9.0.1. |
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