From Our Director
We are preparing for an important triennial review of SSRL by the DOE Office
of Basic Energy Sciences, and we need your help to compile the following
DOE-requested information related to SSRL user experiments during the period of
2014 through 2016.
By April 14, please provide lists of the following
information directly related to your utilization of SSRL beam lines:
- citations for theses and dissertations awarded (include
institution, year, author name, title, advisor(s));
- awards received (awardee name, award title, year);
- patents, commercialized technology or relationships with
- invited talks (talk title, conference/meeting name and date,
conference location, conference title);
- papers (published or in press) if not already listed in the SSRL
You can search for your papers in the SSRL publications database by title, last name, beamline or
DOI within a time period.
On the Submit Publication tab you can submit publications individually or
paste approximately 10 citations in the text box once you've entered your
contact information. You can also submit information on invited
talks up to ~400 characters in the box provided.
Your response can also be sent to Lisa Dunn directly at
I cannot stress enough how important this is for the facility, and I thank
you in advance for your prompt attention and reply.
Bioaccumulation Dynamics of Arsenate at the Base of Aquatic Food
Contacts: David Buchwalter and Dean Hesterberg, North Carolina State
Coal-ash spills in Tennessee and North Carolina rivers have prompted
concerns that toxic trace elements like arsenic could be concentrated in the
food web to potentially affect humans. At the base of these freshwater food
webs are periphyton biofilms, which contain a complex ecosystem of
micro-organisms including bacteria, fungi, diatoms, and algae. Such biofilms
can concentrate trace elements hundreds to thousands of times. To investigate
whether arsenic concentrated in biofilms is propagated up the food chain, a
team of scientists has studied the bioavailability of arsenic to organisms that
feed on the periphyton biofilms. Read more...
More SSRL-Related Science
So Long Stiffness: Stanford Engineers Use Soup Additive to Create a
Stretchable Plastic Electrode
Excerpt from March 10, 2017 Stanford News Article by Shara Tonn
highly stretchy "electronic skin" patch forming an intimate interface with the
human skin to potentially measure various biomarkers. (Image credit:
The brain is soft and electronics are stiff, which can make combining the
two challenging, such as when neuroscientists implant electrodes to measure
brain activity and perhaps deliver tiny jolts of electricity for pain relief or
other purposes. Chemical engineer Zhenan Bao is trying to change that. For more
than a decade, her lab has been working to make electronics soft and flexible
so that they feel and operate almost like a second skin. Along the way, the
team has started to focus on making brittle plastics that can conduct
electricity more elastic.
In a recent article in Science Advances, Bao’s team describes
how they took one such brittle plastic and modified it chemically to make it as
bendable as a rubber band, while slightly enhancing its electrical
conductivity. As Bao and her team sought to preserve conductivity while
adding flexibility to the plastic they also carried out GIWAXS measurements at
SSRL Beam Line 11-3 to study this material at the molecular level. The result
of the overall study is a soft, flexible electrode that is compatible with our
supple and sensitive nerves. Read more...
Awards and Honors
|David L. Clark. (Photo
credit: Rod Searcey, Stanford)|
LANL Scientist Receives 2017 Glenn T. Seaborg Award for Nuclear
Los Alamos National Laboratory chemist David L. Clark has been selected as
the 2017 recipient of the Glenn T. Seaborg Award for Nuclear Chemistry,
sponsored by the American Chemical Society Division of Nuclear Chemistry and
Clark is being honored for his innovative systematic studies of the
fundamental chemistry of actinide elements using novel experimental techniques
and giving new insights into chemical bonding of 5f electrons.
Clark is widely regarded for his efforts to bring state-of-the-art
molecular-level understanding to the chemistry of the actinides and to apply
that understanding to unravel the behavior of actinide ions in chemical
solutions or the environment. Those efforts were applied to the original
scientific case for the Waste Isolation Pilot Plant (WIPP) and to the
environmental cleanup of the Rocky Flats Site. XAS experiments on samples
of contaminated RFETS soils at SSRL helped to provide a framework for decision
makers to guide the remediation efforts.
The American Chemical Society will present Clark with the award at the
Society’s 253rd ACS National Meeting & Exposition April 4, 2017
in San Francisco, California. Read more...
SSRL Summer School on Synchrotron X-ray Absorption Spectroscopy and
SSRL's 2017 Summer School on Synchrotron X-ray Absorption Spectroscopy
and Imaging will be held June 19-23. The five-day session will provide training
in XAS and Imaging theory, experimental design, data acquisition strategies and
FEFF based EXAFS data analysis useful to both new and experienced users. The
two-day practical training session will focus on teaching detailed sample
preparation and data acquisition procedures at the beam lines. Data processing
and analysis techniques will be covered on subsequent days and will include
introductions to EXAFS data fitting on simple systems leading into more
involved data analysis methods to tackle difficult problems. The parallel
session for XAS imaging data acquisition and analysis will cover sample
preparation, methods for optimal data collection, hands-on data analysis using
the imaging data analysis software, microanalysis toolkit. The final day of the
summer school will be targeted towards experienced users and will include
lectures on near-edge analysis techniques, combining advanced spectroscopic
techniques with EXAFS and guidelines for proper reporting of EXAFS data.
Students and researchers wishing to participate in the Summer School
must first apply to attend through the school web portal and should select either the
Imaging or EXAFS hands-on data analysis session. The deadline to submit
an application is April 10, 2017. Accepted participants will be notified
by April 25, 2017 and given instructions for completing the registration
The Summer School will be chaired by SSRL Staff Scientist Ritimukta Sarangi
and held at SSRL with additional facilities used at the SLAC National
Acceleratory Laboratory site. Funding for the SMB Summer School program is
provided by NIH-NIGMS, DOE-BES, and DOE-BER.
We look forward to your participation and a fruitful Summer School.
More Upcoming Events
RapiData 2017 at SSRL – Data Collection and Structure
Solving: A Practical Course in Macromolecular X-ray Diffraction Measurement,
April 16-21, 2017, Menlo Park, CA
The announcement, agenda, registration and additional information are now
available at the RapiData 2017 website
canSAS-IX Meeting, June 5-7, 2017, San Francisco, CA
Please join us in San Francisco for canSAS-IX Meeting from June 5-7, 2017.
The meeting will be hosted jointly between the Advanced Light Source at
Lawrence Berkeley National Laboratory and Stanford Synchrotron Radiation
Lightsource at SLAC National Accelerator Laboratory. The collective action for
nomadic materials science small angle scatterers (canSAS) is an ongoing
activity to provide the small-angle scattering user community with shared tools
and information. For more information please visit both canSAS and the meeting
7th International Conferences on Hard X-ray Photoelectron
Spectroscopy, September 11-15, 2017, Berkeley, CA
The 7th International Conferences on Hard X-ray Photoelectron Spectroscopy
(HAXPES, HXPS, HX-PES,...) brings together researchers from a wide variety of
fields, from fundamental condensed matter and atomic and molecular physics to
more applied surface and interface studies of catalysis, energy and IT device-
and process- development, and environmental research. HAXPES is here defined as
involving photon energies in the multi-keV range above about 2 keV, but the
conference also encourages studies involving complementary photoemission
measurements at lower energies, as well as other x-ray-based techniques. The
use of HAXPES as a newly developed analytical tool, is expanding rapidly, both
making use of synchrotron radiation and laboratory sources. Register online or
contact the Co-Chairs for more information: Piero Pianetta (Stanford/SSRL),
Chuck Fadley (UC Davis/LBNL), and Zahid Hussain (LBNL). Conference website
SSRL/LCLS Users' Conference & Workshops, September 27-29,
2017, Menlo Park, CA – Save the Date
Planning is underway for the next joint SSRL/LCLS Users' Conference.
Please mark your calendars to save these dates: September 27-29, 2017. We
would appreciate your suggestions or feedback about what worked well, who you
would like to hear from, or what you would like to see at the Users'
Please contact David
Bushnell (SSRL UEC), Christoph
Bostedt (LCLS UEC) or the Users
Office to share your input.
User Research Administration
SSRL Beam Time Request Deadline
- April 18, 2017 – Macromolecular Crystallography (June through
July beam time)
SSRL Proposal Deadlines
- June 1, 2017 – X-ray / VUV
- July 1, 2017 – Macromolecular Crystallography
Note: Rapid Access Requests for selected beam lines can be submitted at
any time. Submit proposals and beam time requests through the user portal.
The Stanford Synchrotron Radiation Lightsource (SSRL) is a third-generation
light source producing extremely bright x-rays for basic and applied
research. SSRL attracts and supports scientists from around the world who
use its state-of-the-art capabilities to make discoveries that benefit society.
SSRL, a U.S. DOE Office of Science national user facility, is a Directorate of
SLAC National Accelerator Laboratory, operated by Stanford University for the
U.S. Department of Energy Office of Science. The SSRL Structural
Molecular Biology Program is supported by the DOE Office of Biological and
Environmental Research, and by the National Institutes of Health, National
Institute of General Medical Sciences. For more information about SSRL science,
operations and schedules, visit http://www-ssrl.slac.stanford.edu.
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Questions? Comments? Contact Lisa Dunn