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Important Changes to User Badging & Access

User Research Admin

AS OF OCTOBER 1, 2014, only SLAC Security will issue SLAC ID badges.
 
Please ensure that you have informed all members of your research team about these change and have also alerted us about who will participate in your scheduled experiments or they may not be permitted access to SLAC.
 
Before traveling to SLAC, review check in procedures and complete training.
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Researchers Watch Protein 'Quake' after Chemical Bond Break

LCLS News

Scientists for the first time have precisely measured a protein’s natural “knee-jerk” reaction to the breaking of a chemical bond – a quaking motion that propagated through the protein at the speed of sound.  The result, from an X-ray laser experiment at LCLS, could provide clues to how more complex processes unfold as chemical bonds form and break.
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Detectors Expert Gabriella Carini Prepares for Next Generation of X-ray Experiments

LCLS News

Gabriella Carini leads a new LCLS Detectors Department within the Science, Research and Development Division at LCLS.  This new role has been created to ensure very close integration between the scientific programs at LCLS and the requirements for advanced detectors, and their deployment in the facility. This role will thus link closely with the newly created Technology Innovation Directorate at SLAC, which has substantial expertise in the development of novel detector systems.
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Journal Highlights X-ray Laser Scientific Capabilities, Advances

LCLS News

A special issue of the Journal of Synchrotron Radiation, released last week, recognizes the rapid growth spurt for X-ray free-electron lasers (XFELs) like SLAC's LCLS, which are the brightest sources of X-rays on the planet, and highlights related technical developments that are advancing their scientific capabilities.
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New Tool Shrinks Big Data in Biology Studies at SLAC's X-ray Laser

LCLS News

A team led by Stanford University scientists is using software to breathe new life into results from past biological experiments at SLAC’s X-ray laser.more...


X-ray Study May Aid in Designing Better Blood Pressure Drugs

LCLS News

An experiment at the Department of Energy's SLAC National Accelerator Laboratory has revealed in atomic detail how a hypertension drug binds to a cellular receptor that plays a key role in regulating blood pressure. The results could help scientists design new drugs that better control blood pressure while limiting side effects.
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From the Director of LCLS: Strategic Next Steps

LCLS News

Now six months into my new role, I would like to share my perspective on where LCLS stands and lay out some priorities for the coming months.
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Scientists Track Ultrafast Creation of a Catalyst with X-ray Laser

LCLS News

Researchers use X-ray laser at SLAC to track light-triggered chemical reactions in a molecule that serves as a simple model for the conversion of solar energy into fuel.
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Experiment Provides the Best Look Yet at 'Warm Dense Matter' at Cores of Giant Planets

LCLS News

In an experiment at the Department of Energy's SLAC National Accelerator Laboratory, scientists precisely measured the temperature and structure of aluminum as it transitions into a superhot, highly compressed concoction known as “warm dense matter.”
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Scientists Watch Quantum Dots 'Breathe' in Response to Stress

LCLS News

Researchers at the Department of Energy’s SLAC National Accelerator Laboratory watched nanoscale semiconductor crystals expand and shrink in response to powerful pulses of laser light. This ultrafast “breathing” provides new insight about how such tiny structures change shape as they start to melt – information that can help guide researchers in tailoring their use for a range of applications.
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SLAC Spirit Propels Development of New Initiative for Ultrafast Science with Electrons

LCLS News

Multiple SLAC divisions work together to build SLAC’s UED/UEM facility, which will enhance the lab’s portfolio of techniques for ultrafast science.
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New 2-Color X-ray Laser Technique Could Reveal Atomic Detail of Medically Important Proteins

LCLS News

Developed at SLAC’s LCLS, it could also yield new information from hard-to-study samples in materials science, chemistry and other fields.
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Giant Virus Revealed in 3-D Using X-ray Laser

LCLS News

For the first time, researchers have produced a 3-D image revealing part of the inner structure of an intact, infectious virus, using a unique X-ray laser at the Department of Energy’s SLAC National Accelerator Laboratory. The virus, called Mimivirus, is in a curious class of “giant viruses” discovered just over a decade ago.
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Study Could Pave the Way for Painkillers with Fewer Side Effects

LCLS News

Researchers have long sought alternatives to morphine – a powerful and widely used painkiller – that curb its side effects, including dependency, nausea and dizziness. Now, an experiment at the Department of Energy’s SLAC National Accelerator Laboratory has supplied the most complete atomic-scale map of such a compound docked with a cellular receptor that regulates the body’s pain response and tolerance.
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BBC Video & News on LCLS

LCLS News

Researchers in California have developed the most powerful X-ray laser in the world.  It is a billion times brighter that the previous generation of lasers and is being used to see how atoms move in living systems.
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Scientists Get First Glimpse of a Chemical Bond Being Born

LCLS News

Scientists have used an X-ray laser at the Department of Energy’s SLAC National Accelerator Laboratory to get the first glimpse of the transition state where two atoms begin to form a weak bond on the way to becoming a molecule.
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Scientists Take First X-ray Portraits of Living Bacteria at the LCLS

LCLS News

Researchers working at the Department of Energy’s SLAC National Accelerator Laboratory have captured the first X-ray portraits of living bacteria.
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X-ray pulses uncover free nanoparticles for the first time in 3D

DESY News

For the first time, a German-American research team has determined the three-dimensional shape of free-flying silver nanoparticles, using DESY’s X-ray laser FLASH. The tiny particles, hundreds of times smaller than the width of a human hair, were found to exhibit an unexpected variety of shapes, as the physicists from the Technical University (TU) Berlin, the University of Rostock, the SLAC National Accelerator Laboratory in the United States and from DESY report in the scientific journal Nature Communications. Besides this surprise, the results open up new scientific routes, such as direct observation of rapid changes in nanoparticles.
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New Lab Offers Testbed for LCLS Experiments

LCLS News

A new lab at SLAC allows scientists to test out how best to study their samples at LCLS prior to an actual experiment. The Injector Characterization Lab, launched in January, gives users access to tools for fabricating and testing sample delivery systems onsite and remotely.
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5 Ways to Put Tiny Targets in Front of an X-ray Laser

LCLS News

Scientists have assembled an exotic toolbox for experiments that tap into the brightest X-rays on the planet.
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Submit New Protein Crystal Screening Proposals by 4 pm Pacific on May 5, 2015

User Research Admin

The LCLS Protein Crystal Screening (PCS) program aims to enable increased access to LCLS beamtime for biological structure determination by making use of short, 6-hour runs to screen the quality of different sample preparations or potentially collect a full data set under good running conditions. To enable measurements within such a short time frame and maximize efficiency and the chances of success, these studies must be carried out with limited flexibility to minimize the time impact of setup changes. The following configurations are expected to be supported for PCS in this current call for proposals: gas dynamic virtual nozzle (GDVN) liquid jet system and fixed targets in vacuum at CXI. Other liquid jet systems supplied by user groups compatible with the basic CXI system will also be considered if the schedule allows it and at the discretion of the LCLS facility. Furthermore, atmospheric pressure measurements on fixed targets using a goniometer system at XPP are expected to be available. Measurements using other demonstrated atmospheric pressure sample delivery techniques can be considered if the schedule allows it and at the discretion of the LCLS facility. Schedule constraints are unpredictable and no guarantees can be made that any of the mentioned experimental setups will be available for PCS in any given run.
 
LCLS is seeking proposals for PCS beamtime to be awarded during LCLS Run 12, expected to be between October 2015 and March 2016.
 
Detailed PCS Proposal Guidelines can be found at http://www-ssrl.slac.stanford.edu/lcls/users/proposals.html#prop-pcs
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SLAC Road Closure: Beginning 1/19/15, the SLAC Loop Road between Starbucks and Gate 17 will be closed

LCLS News

At the SLAC Sand Hill Road entrance, turn right (instead of left) and follow the Loop Road around the main SLAC campus to enter the experimental areas through Sector 30 or Gate 17. Access to Gate 17 from the “Starbucks” side is expected to re-open in late February. 
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February Workshops to Highlight Science Potential of LCLS-II

LCLS News

Scientists will gather at SLAC in February for a weeklong series of free workshops focused on new science that can be realized with LCLS-II, a planned upgrade and expansion of the lab’s LCLS X-ray laser. LCLS-II will deliver X-rays with a much higher repetition rate, broader photon energy range, short pulse duration and high coherence.
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Ultrafast imaging of complex systems in 3-D at near atomic resolution becoming increasingly possible

LCLS News

An experiment at SLAC's LCLS provides new insight on how atoms' electrons are stripped and rearranged by intense X-ray pulses.
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DESY's Henry Chapman Awarded Leibniz Prize for X-ray Laser Research

LCLS News

A scientist at Germany’s DESY lab who participated in pioneering studies at SLAC's LCLS has been awarded a scientific prize by a research foundation.
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X-ray Laser Reveals How Bacterial Protein Morphs in Response to Light

LCLS News

Researchers captured the highest-resolution snapshots ever taken with an X-ray laser that show changes in a protein’s structure over time.
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Rattled Atoms Mimic High-temperature Superconductivity

LCLS News

An experiment at SLAC provided the first fleeting glimpse of the atomic structure of a material as it entered a state resembling room-temperature...
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SLAC, RadiaBeam Build New Tool to Tweak Rainbows of X-ray Laser Light

LCLS News

SLAC and RadiaBeam Systems have teamed up to construct a “dechirper” that will allow scientists to adjust the “color spectrum” of X-ray pulses in pioneering LCLS experiments.
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From the Director of LCLS: Preparing for the Future

LCLS News

Since joining SLAC as director of LCLS a month ago, I’ve learned a tremendous amount and would like to share some initial perspectives and plans.more...


Robotics Meet X-ray Lasers in Cutting-edge Biology Studies

LCLS News

Scientists at the Department of Energy’s SLAC National Accelerator Laboratory are combining the speed and precision of robots with one of the brightest X-ray lasers on the planet for pioneering studies of proteins important to biology and drug discovery.

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SLAC X-ray Laser Brings Key Cell Structures into Focus

LCLS News

Scientists have made high-resolution X-ray laser images of an intact cellular structure much faster and more efficiently than ever possible before. The results are an important step toward atomic-scale imaging of intact biological particles, including viruses and bacteria.
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New Project Will Expand Opportunities for Biological Discovery With SLAC’s X-ray Laser

LCLS News

A planned experimental station at the Department of Energy's SLAC National Accelerator Laboratory will expand capabilities for atomic-scale explorations in human health, biology, energy and environmental science using one of the brightest X-ray sources on the planet.
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New Directors, New Science Share Spotlight at Annual Meeting and Workshops

LCLS News

Nobel Prize-winning scientists and other prominent researchers, including new directors for the X-ray free-electron laser and synchrotron light sources at the Department of Energy's SLAC National Accelerator Laboratory, led workshops and other scientific presentations at the Oct. 7-10, 2014 LCLS/SSRL Annual Users' Meeting and Workshops.
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LCLS Call for Protein Crystal Screening Proposals, Closing Date: November 11, 2014

LCLS News

The LCLS Protein Crystal Screening (PCS) program aims to enable increased access to LCLS beamtime for biological structure determination by making use of short 6-hour runs to screen the quality of different sample preparations or potentially collect a full data set under good running conditions. To enable measurements within such a short time frame and maximize efficiency and the chances of success, these studies must be carried out with limited flexibility to minimize the time impact of setup changes.
 
SUBMIT NEW PROTEIN CRYSTAL SCREENING PROPOSALS BY 4 pm PACIFIC on November 11, 2014.
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LCLS Director Announcement

LCLS News

Today, I’m pleased to announce that our global search for a leader for the Linac Coherent Light Source (LCLS), our premier X-ray laser facility, has also successfully come to an end.

Michael Dunne, currently the director for Laser Fusion Energy at the Lawrence Livermore National Laboratory (LLNL), has agreed to become the next director of LCLS. Mike will officially start in his new position on Oct. 20.

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Five Years of Scientific Discoveries with SLAC's LCLS

LCLS News

Since the success of its inaugural experiment five years ago, thousands of scientists have used SLAC's X-ray laser to probe previously unreachable extremes in fields ranging from biology to astrophysics.
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Register for the Oct 7-10, 2014 LCLS/SSRL Users' Conference

LCLS News

Help us spread the news that registration has opened for the LCLS/SSRL Annual Users' Conference and Workshops, October 7-10, 2014. The activities scheduled over this multi-day event provide opportunities to learn about the latest user research results, current/future capabilities and new science opportunities as well as to interact with other scientists and vendors of light source related products and services.
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LCLS Call for Proposals for Run 12: Due 2/3/15

LCLS News

LCLS Call for Proposed Experiments with Soft and Hard X-rays at the AMO, SXR, XPP, CXI, XCS, and MEC Experimental Stations
Closing Date:   February 3, 2015
 
The Linac Coherent Light Source (LCLS) encourages scientists from diverse fields to propose experiments utilizing the LCLS's unique capabilities to be carried out October 2015-March 2016.
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NUFO News: The Future of America is the Research of Today

LCLS News

National User Facility Organization (NUFO) News is attached (also available on the NUFO website http://nufo.org/files/news/August%202014%20Annual%20Meeting_Incorporation-2.pdf) Please share this news with your colleagues. The Future of America is the Research of Today Susan White-DePace Executive Administrator for the National User Facility Organization susan.white-depace@nufo.org www.nufo.org 630-252-7172 more...


Vote for LCLS UEC Candidates

LCLS News

The LCLS Users' Executive Committee (UEC) holds an annual election to fill positions for rotating members in various science areas (UEC members generally serve 3 year terms). The UEC would appreciate your vote for candidates to serve on the LCLS UEC. more...


Save the date for an LCLS-II workshop at SLAC February 9-12, 2015

LCLS News

Save the date for an LCLS-II workshop which will be held at SLAC February 9-12, 2015. The workshops will focus on new scientific opportunities enabled by the unique capabilities of LCLS-II. Contact Jerry Hastings/Bill Schlotter for more details.more...


Plastics in Motion: Exploring the World of Polymers

LCLS News

Researchers have shown X-ray laser pulses can capture natural motion in a polymer that behaves in unusual ways when heated to a middle ground between its melting point and solid state.more...


LCLS Users' Executive Committee Update -- Submit Nominations by September 19, 2014

LCLS News

The Linac Coherent Light Source (LCLS) has a users' organization which provides an organized framework for interaction between the scientists who are interested in using the LCLS (the users) and LCLS/SLAC Management. The LCLS Users' Executive Committee (LCLS UEC) is the formal organizational unit and is broadly concerned with representing the scientific user community and facilitating the availability and effective use of LCLS. The LCLS UEC meets 3-4 times during the year to communicate the interests of users regarding LCLS operating policies, use of LCLS, user support, and other relevant issues of concern to those engaged in research at this facility. The committee includes user representatives from various scientific disciplines. Contact members of the UEC if you have questions, suggestions or other feedback.
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Scientists Map Protein in Living Bacterial Cells

LCLS News

Scientists have for the first time mapped the atomic structure of a protein within a living cell. The technique, which peered into cells with an X-ray laser, could allow scientists to explore some components of living cells as never before.
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SLAC Q&A: Michele Swiggers Keeps X-ray Laser Experiments on Track

LCLS News

Michele Swiggers joined SLAC's LCLS in 2009, its first year of operation, and soon after took a position with the Atomic, Molecular and Optical Science (AMO) team. Now she is area manager for the Soft X-ray Department, which oversees two of the six LCLS experimental stations. She helps schedule, set up and troubleshoot LCLS experiments, which requires a special blend of technical know-how, engineering ingenuity and the right wrench (her go-to tool is a 5/16-inch and 1/4-inch ratcheting wrench).
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From the Director of LCLS-II: LCLS Transformed

LCLS News

Throughout the past year, the LCLS-II project team has been working on a proposal to replace sectors 0-10 of SLAC’s linear accelerator with a new superconducting linac that would transform the science capabilities of LCLS.
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X-ray Laser Probes Tiny Quantum Tornadoes in Superfluid Droplets

LCLS News

An experiment at the Department of Energy's SLAC National Accelerator Laboratory revealed a well-organized 3-D grid of quantum "tornadoes" inside microscopic droplets of supercooled liquid helium – the first time this formation has been seen at such a tiny scale.more...


Catching Chemistry in Motion

LCLS News

SLAC researchers have developed a laser-timing system that could lead to X-ray snapshots fast enough to reveal the triggers of chemical and material reactions.more...


Nature Milestones in Crystallography

LCLS News

Nature Publishing Group has released a supplement, "Nature Milestones in Crystallography," that calls out contributions from SLAC's Linac Coherent Light Source X-ray laser – and the future potential of this and other X-ray sources – to advance the field of crystallography, in which scientists work to obtain the intact 3-D structure of important biological samples, including viruses and proteins, by exposing them to intense X-ray light.
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X-ray Laser Measures Leaping Electrons

LCLS News

Many chemical reactions – such as those at work in batteries and photosynthesis – rely on electrons moving from one atom or molecule to another. Now, scientists have directly measured the movement of electrons as they leap across parts of the same molecule, which provides useful insight about the mechanisms involved in forming and breaking chemical bonds.
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Update: Call for LCLS Run 11 Proposals - Register and Submit by July 29, 2014

LCLS News

See updated call for LCLS Run 11 proposals attached.

UPDATE:  For users who require a monochromator, seeded beams can provide 2 to 4 times more photons per pulse than SASE beams, and with similar pulse durations and shot-to-shot intensity fluctuations. The narrow seeded line, 0.4 to 1.1 eV fwhm,  for 50 fs pulse duration typically contains an average pulse energy of 0.3 mJ, with occasional shots up to 1 mJ. It is accompanied by a relatively broadband SASE background of comparable total energy. Seeded beams are available from 5.5 keV to 9.5 keV and can be tuned up from a SASE beam in about 30 minutes.

Soft X-ray self seeding has been demonstrated across the range 500-1000 eV.  This mode may help users who benefit from more photons through a monochromator or would like a narrow bandwidth but cannot use a monochromator.  Soft X-ray seeding development will continue over the next year, and may be available during the October 2014-March 2015 run.  Check with srd-sxd@slac.stanford.edu for latest developments and estimated parameters.

Register as a user and submit LCLS proposals through the user portal:
https://www-ssrl.slac.stanford.edu/URAWI/


Cathy Knotts
User Research Administration Manager
650-926-3191

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From the Interim Director of LCLS: Recent Activities and Changes at LCLS

LCLS News

The last six months have been a whirlwind of activities and changes at LCLS. As we approach steadier times ahead, with different sets of challenges and opportunities, I want to thank everyone at the lab for your great help during this recent demanding period.
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X-ray Laser Gives Buckyballs a Big Kick

LCLS News

Scientists have been blowing up "buckyballs" – soccer-ball-shaped carbon molecules – with an X-ray laser to see how they fly apart. The results will help them understand important biomolecules.
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Scientists Use X-rays to Look at How DNA Protects Itself from UV Light

LCLS News

The molecular building blocks that make up DNA absorb ultraviolet light so strongly that sunlight should deactivate them – yet it does not. Now scientists have made detailed observations of a “relaxation response” that protects these molecules, and the genetic information they encode, from UV damage.
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Scientists Take First Dip into Water’s Mysterious ‘No Man’s Land’

LCLS News

Scientists at the Department of Energy’s SLAC National Accelerator Laboratory have made the first structural observations of liquid water at temperatures down to minus 51 degrees Fahrenheit, within an elusive “no man’s land” where water’s strange properties are super-amplified.
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Curiosity Created the Chemist

LCLS News

In recent years, Gaffney’s group has shown how hydrogen bonds switch between water molecules and resolved questions posed in the 1980s about how important catalysts respond to light and promote chemical reactions.

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Journal Highlights X-ray Laser Impacts on Biological Science

LCLS News

Even in their infancy, X-ray lasers such as SLAC's Linac Coherent Light Source (LCLS) are notching a list of important discoveries. A special issue of a scientific journal highlights their unique contributions to biological sciences and details technical milestones that are likely to secure their growing role in these fields.
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A New Way to Create Compact Light Sources

LCLS News

SLAC scientists have found a new way to produce bright pulses of light from accelerated electrons that could shrink "light source" technology used around the world since the 1970s to examine details of atoms and chemical reactions.
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Revealed at Last: Atomic Mechanism for Historic Materials Transformation

LCLS News

SLAC-led researchers have made the first direct measurements of a small, extremely rapid atomic rearrangement that dramatically changes the properties of many important materials.
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Rolls-Royce, Collaborators Study Ways to Strengthen Titanium Aircraft Parts at LCLS

LCLS News

Rolls-Royce researchers came to SLAC earlier this month as part of a team testing titanium and its alloys, such as those used in engine parts, landing gear and other aircraft components.
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SLAC Accelerator Physicist Receives European Prize

LCLS News

Agostino Marinelli, a postdoctoral researcher in the Accelerator Directorate, has been named the 2014 recipient of the Frank Sacherer Prize from the European Physical Society.more...


Scientists Capture Ultrafast Snapshots of Light-driven Superconductivity

LCLS News

A new study pins down a major factor behind the appearance of superconductivity – the ability to conduct electricity with 100 percent efficiency – in a promising copper-oxide material. 
Scientists used carefully timed pairs of laser pulses at SLAC National Accelerator Laboratory's Linac Coherent Light Source (LCLS) to trigger superconductivity in the material and immediately take X-ray snapshots of its atomic and electronic behavior as superconductivity emerged.
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Five Years of Illumination: SLAC's Linac Coherent Light Source

LCLS News

Five years ago, the brightest source of X-rays on the planet lit up at SLAC. The Linac Coherent Light Source (LCLS) X-ray laser's scientific and technical progress since its momentous "first light" have been no less luminous, say those who have played a role in its success.
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Construction Update & Stanford Guest House Survey

LCLS News

There are several construction projects currently underway at SLAC including the above mentioned Starbucks kiosk and patio dining area under construction in the parking lot of the Guest House.  Please read updates concerning travel during this construction.
 
Your input to the Stanford Guest House Survey helps the Guest House provide better services.
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Update on Food Options at SLAC

LCLS News

New EAT Club Delivery Service:
In an effort to expand the food service available, EAT Club, a “virtual cafeteria," now delivers meals to SLAC. You can review daily selections and place an online order with Eat Club by 10:30 am using a personal credit card.  Your meal will be delivered to the location you specify for pickup. Once meals are delivered, an email or text notification will be sent specifying the location (building, rack and shelf) of your meal.
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Data-mining for Crystal 'Gold' at SLAC's X-ray Laser

LCLS News

A new tool for analyzing mountains of data from SLAC’s Linac Coherent Lightsource (LCLS) X-ray laser can produce high-quality images of important proteins using fewer samples. Scientists hope to use it to  reveal the structures and functions of proteins that have proven elusive, as well as mine data from past experiments for new information.
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A New Way to Tune X-ray Laser Pulses

LCLS News

A new system at SLAC National Accelerator Laboratory's X-ray laser narrows a rainbow spectrum of X-ray colors to a more intense band of light, creating a much more powerful way to view fine details in samples at the scale of atoms and molecules.
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Register for Ultrafast X-ray Summer Seminar (UXSS), June 15-19, 2014

LCLS Announcement

Registration for the Ultrafast X-ray Summer Seminar 2014 is open.  UXSS 2014 will be held at SLAC National Accelerator Laboratory from June 15th to 19th 2014.  The goal of UXSS 2014 is to disseminate information and train students and post-docs on new opportunities in ultrafast science, particularly using X-ray Free Electron Lasers. Lectures will be presented by expert scientists in this exciting new field.
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X-ray Laser Sheds New Light on Quest for Faster Data Storage

LCLS News

An experiment at SLAC’s X-ray laser has revealed the first atomic-scale details of a new technique that could point the way to faster data storage in smartphones, laptops and other devices.
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AAAS Symposium: Innovations in Crystallography Meet Demands in Materials Science, Energy, and Health Saturday, February 15, 2014

LCLS News

Targeted drug design, auto components and computer memory keep getting better thanks to atomic-scale studies of their molecular structure that enable industry to improve effectiveness, high-performance materials, and storage density. Our daily world is awash with examples of the benefits of X-ray crystallography.
 
2014 is the International Year of Crystallography - see events scheduled throughout the year http://www.iycr2014.org/
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From the Interim Director of LCLS: Successes, Challenges and New Opportunities

LCLS News

2013 was another exciting year for LCLS, with a record number of new publications and new experiments. By employing novel X-ray optics that allow us to share the LCLS beam between instruments, we can now perform two experiments simultaneously in some cases. This way we are able to carry out 20 percent more experiments. This is very welcome news for the scientific community, as their demand for LCLS time is still steadily rising.

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LAMP: A New Tool Turns On at SLAC's X-ray Laser

LCLS News

A 2-ton instrument the size of a compact car, now available at SLAC's X-ray laser, makes it possible to capture more detailed images of atoms, molecules, nanoscale features of solids, and individual particles such as viruses and airborne soot.
more...


X-ray Laser Maps Important Drug Target

LCLS News

Researchers have used one of the brightest X-ray sources on the planet to map the 3-D structure of an important cellular gatekeeper known as a G protein-coupled receptor, or GPCR, in a more natural state than possible before. The new technique is a major advance in exploring GPCRs, a vast, hard-to-study family of proteins that plays a key role in human health and is targeted by an estimated 40 percent of modern medicines.
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LCLS Call for Proposals for Run 10 - Due February 11, 2014

LCLS Announcement

Experiments with Soft and Hard X-rays at the 
AMO, SXR, XPP, CXI, XCS, and MEC Experimental Stations
Closing Date:   February 11, 2014
 
The Linac Coherent Light Source (LCLS) (http://lcls.slac.stanford.edu) encourages scientists from diverse
fields to propose experiments utilizing the LCLS’s unique capabilities to be carried out October 2014–
March  2015.
more...


Scientists Line Up Unruly Gas Molecules for X-rays

LCLS News

A study with SLAC's X-ray laser is a key step toward producing movies that show how a single molecule changes during a chemical reaction.
more...


LCLS Call for MEC Optical-Laser-Only Proposals, Due January 14, 2014

LCLS Announcement

The Linac Coherent Light Source (LCLS) Matter in Extreme Conditions (MEC) Optical-laser-only program will dedicate shifts at the MEC instrument in the period from April 2014 to December 2014. The MEC instrument combines the LCLS free electron laser x-ray beam with high power optical laser beams, a large target chamber and a suite of diagnostics. MEC Optical-laser-only proposals must be submitted by January 14, 2014 to be considered for beam time anticipated to be during the summer and early fall of 2014.
more...


New X-ray Laser Technique Measures Atomic Vibrations Faster, More Accurately

LCLS News

An international team led by scientists from two SLAC/Stanford institutes has devised a much faster and more accurate way of measuring subtle atomic vibrations that underlie important hidden properties of materials.  This advance will help researchers design new materials with desirable but elusive traits, such as room-temperature superconductivity or the ability to efficiently convert heat into electricity.

more...


LCLS Powers Chain Reaction of Light: A New Tool for X-ray Studies

LCLS News

Researchers have found a new way to probe molecules and atoms with an X-ray laser, setting off cascading bursts of light that reveal precise details of what is going on inside. The technique may allow scientists to see details of chemical reactions and home in on the properties of specific elements within complex molecules in a way not possible before.
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Scientists Prove X-ray Laser Can Solve Protein Structures from Scratch

LCLS News

A study shows for the first time that X-ray lasers can be used to generate a complete 3-D model of a protein without any prior knowledge of its structure.
more...


Completing the Circuit: SLAC-designed Chips Empower X-ray Science

LCLS News

To reveal new details about science at these extremes, a small team of scientists in SLAC's Integrated Circuits Department is designing intricate signal-processing chips known as application-specific integrated circuits, or ASICs. The chips translate signals picked up by sensors into bits of data for analysis. ASICs and sensors are at the core of complex detector systems in development at SLAC.
more...


Important News: Changes to Access and Food Service at SLAC

LCLS News

To avoid delays or disruptions to your experiment beam time, review NEW automated gate access requirements and check-in procedures!
more...


Annual Meeting, Workshops Highlight SLAC's LCLS, SSRL

LCLS News

A record crowd of more than 400 researchers came to the 2013 LCLS/SSRL Annual Users' Meeting and Workshops, held Oct. 1-4 at SLAC, to learn about the latest capabilities, scientific results and planned upgrades at the lab's premier X-ray facilities. Associated workshops focused on research with high-power lasers and using X-rays to study cultural artifacts.
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Copper Shock: An Atomic-scale Stress Test

LCLS News

X-ray laser at the U.S. Department of Energy's SLAC National Accelerator Laboratory to create movies detailing trillionths-of-a-second changes in the arrangement of copper atoms after an extreme shock. Movies like these will help researchers create new kinds of materials and test the strength of existing ones.
more...


New Technique Traces Ejected Electrons Back to Atomic Shells

LCLS News

In a detailed study of how intense light strips electrons from atoms, researchers used an X-ray laser, SLAC's Linac Coherent Light Source (LCLS), to measure and sort the ejected electrons and discover how this process takes place.more...


From the Director: A Modified Proposal for LCLS-II

by Chi-Chang Kao

Recently, I wrote about a report from the Subcommittee on Future X-ray Light Sources of the Basic Energy Sciences Advisory Committee (BESAC). I want to give you more details about how we've proposed incorporating the report's recommendations into our plans for LCLS-II.more...


Journal's Special Issue Highlights New Frontier of X-ray Lasers

LCLS News

A special issue of a physics publication highlights the contributions of SLAC's Linac Coherent Light Source X-ray laser and the few similar lasers around the globe in probing the interaction of light and matter at the scale of atoms and electrons.more...


LCLS Gets New Equipment, Upgrades During Downtime

LCLS News

Crews will install a powerful new instrument, start assembling a new "self-seeding" system that will focus soft X-ray laser pulses into a bright, narrow band of colors, and upgrade several laser systems during two months of routine downtime at SLAC's Linac Coherent Light Source (LCLS) X-ray laser.
more...


Ribosome Research Takes Shape at SLAC

LCLS News

In a new state-of-the-art lab at SLAC, components of ribosomes – tiny biological machines that make new proteins and play a vital role in gene expression and antibiotic treatments – form crystals in a liquid solution.
more...


From the SLAC Director: Future Light Sources and Great Opportunities

LCLS News

As many of you know, last month I participated in an important meeting of the Subcommittee on Future X-ray Light Sources of the Basic Energy Sciences Advisory Committee (BESAC). In January 2013, then Director Bill Brinkman charged BESAC to assess scientific challenges that could best be explored with current and especially future light sources and to describe performance specifications of those future light sources.more...


Rapid Beam-switching Allows SLAC X-ray Laser to Multitask

LCLS News

A new tool offers a nearly seamless way to switch X-ray laser pulses between two experiments at SLAC's Linac Coherent Light Source, providing more operating time for experiments.
more...


High-power Laser Workshop Will Highlight New Capabilities at LCLS

LCLS News

An Oct. 1-2 workshop at SLAC will feature the latest results and opportunities in research with high-power lasers. It will also highlight upgrades to a high-power laser system at SLAC’s LCLS that will enable experiments exploring the properties of matter at extreme temperatures and pressures.
more...


Register Now for LCLS/SSRL Annual Users' Meeting and Workshops Oct. 1-4

LCLS News

Registration is now open for SLAC's LCLS and SSRL Annual Users' Meeting and Workshops, scheduled Oct. 1-4. More than a dozen workshops, awards presentations and keynote talks will highlight the scientific capabilities, new developments and latest research at SLAC's user facilities, and provide a forum to interact with scientists, potential colleagues and vendors.
more...


A New Tool to Split X-ray Laser Pulses

LCLS News

A new tool at SLAC's LCLS splits X-ray laser pulses in two and allows researchers to precisely control the delay between them. It’s used to trigger and measure ultrafast changes in atoms and molecules.more...


Speed Limit Set for Ultrafast Electrical Switch

LCLS News

Researchers from the U.S. Department of Energy's (DOE) SLAC National Accelerator Laboratory have clocked the fastest-possible electrical switching in magnetite, a naturally magnetic mineral. Their results could drive innovations in the tiny transistors that control the flow of electricity across silicon chips, enabling faster, more powerful computing devices.more...


New Automated Access Gates at Sector 30

LCLS News

On Friday, the new automated access gates at SLAC will begin operating. Gate 17 will be activated first, followed by Sector 30 on Wednesday, July 31. Both gates will allow 24/7 automated access from SLAC's general campus into the laboratory’s accelerator area.more...


New Test Bed Probes the Origin of Pulses at LCLS

LCLS News

A new test facility studies the complex chemistry and physics that converge on a tiny spot on a copper plate where every pulse at SLAC's Linac Coherent Light Source X-ray laser gets its start.
more...


From the Interim Director of LCLS: Finding Our Balance

LCLS News

Across the lab, we’re juggling many important activities, ranging from immediate needs to fantastic new opportunities that might have a profound impact on the lab’s future. It is during these times in particular that we must remember to keep balance in our lives.more...


New Program Broadens the Reach of LCLS Crystallography Experiments

LCLS News

A new screening program will allow researchers to quickly confirm whether precious biological samples yield useful information when struck by the intense X-ray pulses at SLAC's Linac Coherent Light Source (LCLS).
more...


LCLS Call for Protein Crystal Screening Proposals, Due October 22, 2013

LCLS News

The Linac Coherent Light Source (LCLS) Protein Crystal Screening (PCS) program will dedicate shifts at the CXI instrument during Run 9, April - July 2014.  PCS proposals must be submitted by October 22 to be considered for beam time starting in spring of 2014.
more...


Gate 17 Construction Access Changes May-June 2013

LCLS News

Reposted: Construction is planned to update Gate 17 with proximity access hardware and to change the steps next to the Security hut to an ADA compliant ramp. This construction is scheduled to begin Tuesday 5/28 and be completed by 6/28. During this construction, access to the LCLS and SSRL buildings and experimental facilities will be provided as follows...
more...


New Tool to Measure X-ray Pulses Borrows from SLAC History

LCLS News

A tool developed half a century ago for sorting subatomic particles has been redesigned to measure X-ray laser pulses at SLAC's Linac Coherent Light Source (LCLS). The result is a new device that pinpoints the duration of X-ray pulses to within a couple of quadrillionths of a second.more...


All Systems Go: A New High-energy Record for LCLS

LCLS News

SLAC accelerator staff pushed the Linac Coherent Light Source X-ray laser to record energies during an experiment by visiting scientists last month.
more...


SLAC's X-ray Laser Explores Big Data Frontier

LCLS News

It's no surprise that the data systems for SLAC's Linac Coherent Light Source X-ray laser have drawn heavily on the expertise of the particle physics community, where collecting and analyzing massive amounts of data are key to scientific success.
more...


From the Director: Moving LCLS-II Forward

LCLS News

Last week, the U.S. Department of Energy conducted a status review of SLAC’s LCLS-II project. Following the review, which focused in part on planning for the possibility of a continuing resolution in fiscal year 2014, we’re working with DOE to refine our contingency plans and keep LCLS-II moving forward.more...


X-ray Laser Brings Gold Exploration to the Nanoscale

LCLS News

To better understand the properties of nanocrystals, a team of researchers explored tiny gold samples with SLAC's Linac Coherent Light Source X-ray laser.

more...


LCLS Call for Proposals, Due July 9, 2013

LCLS News

Scientists seeking to conduct cutting-edge research at SLAC's Linac Coherent Light Source X-ray laser – one of just three X-ray free-electron lasers in operation worldwide – can tap into a range of new capabilities. The latest call for proposals to use LCLS during its March 2014 to July 2014 operating run is open until July 9, 2013.
more...


Work to Begin in May to Automate Access at Gate 17, Sector 30 Gate

LCLS News

Contractors will begin installing automated access controls this month at the Sector 30 gate and Gate 17 as the next stage in SLAC's Site Security Improvement project gets underway.
more...


X-ray Laser Brings Cellular Messengers into Focus

LCLS News

In March, a team of researchers successfully tested a technique to study cellular messengers, called G protein-coupled receptors, at SLAC's Linac Coherent Light Source X-ray laser.
more...


From the Interim Director of LCLS: Making the Right Choices

LCLS News

Five years from now, LCLS will be a very different facility operating in a very different scientific climate. We will maintain our leadership position in this new environment by making the right choices and having the full support of an excited, motivated and creative staff, not just at LCLS, but throughout the lab.
more...


Sharper Images for Extreme LCLS Experiments

LCLS News

An imaging technique conceived 50 years ago has been successfully demonstrated at SLAC's Linac Coherent Light Source, where it is expected to improve results in a range of experiments, including studies of extreme states of matter formed by shock waves.more...


Former SLAC Intern is Youngest to Lead LCLS Experiment

LCLS News

Stephanie Mack is the youngest scientist to lead an experiment at the Linac Coherent Light Source.
more...


LCLS Motivates Closer Inspection of Tiny Protein Crystals

LCLS News

A staff scientist for a SLAC and Stanford University joint institute details the rapid advances in studies of biomolecules – made possible by X-ray lasers like SLAC's Linac Coherent Light Source – in an article featured today on the cover of the journal Analytical Chemistry.
more...


Producing X-ray Laser Pulses in Two Colors

LCLS News

SLAC researchers demonstrate for the first time how to produce pairs of X-ray laser pulses in slightly different wavelengths, or colors, with finely adjustable intervals between them – a feat that will allow them to watch molecular motion and explore other ultrafast processes.more...


X-ray Laser Explores How to Write Data with Light

LCLS News

Using laser light to read and write magnetic data by quickly flipping tiny magnetic domains could help keep pace with the demand for faster computing devices.  Now experiments with SLAC's Linac Coherent Light Source (LCLS) X-ray laser have given scientists their first detailed look at how light controls the first trillionth of a second of this process, known as all-optical magnetic switching.
 
more...


Breakthrough Research Shows Chemical Reaction in Real Time

LCLS News

The ultrafast, ultrabright X-ray pulses of the Linac Coherent Light Source (LCLS) have enabled unprecedented views of a catalyst in action, an important step in the effort to develop cleaner and more efficient energy sources.
more...


'Beam Sharing': Two Experiments with One X-ray Laser

LCLS News

SLAC researchers and collaborators used diamond crystals to separate ultrabright X-ray pulses at the Linac Coherent Light Source into two beams for experiments spaced about 250 meters apart.
more...


X-ray Laser Explores New Uses for DNA Building Blocks

LCLS News

A pioneering experiment at SLAC's Linac Coherent Light Source X-ray laser explores the structure of DNA crystals that researchers have built from geometric DNA nanostructures.
more...


An Impressive and Growing Array of Lasers at SLAC

LCLS News

In less than a decade, SLAC has built up an impressive array of dozens of laser systems – and a team of laser scientists and engineers – with capabilities that make it one of the most cutting-edge national laboratories under the U.S. Department of Energy.
more...


New X-ray Tool Proves Timing is Everything

LCLS News

Researchers have found a way to better pinpoint the arrival time of high-energy X-ray laser pulses, which can measure a few quadrillionths of a second in duration, with other laser pulses at LCLS.
more...


X-ray Laser Sees Photosynthesis in Action

LCLS News

Researchers used SLAC’s X-ray laser to simultaneously look at the structure and chemical behavior of a natural catalyst involved in photosynthesis for the first time.
 
more...


A Global Update on X-ray Laser R&D

LCLS News

About 90 scientists and managers for SLAC's Linac Coherent Light Source and other X-ray lasers in operation or under construction around the globe shared updates on research and development efforts during an annual meeting held Feb. 4 to 6 at SLAC.
more...


Watch SLAC Public Lecture on Ultrafast Electronics

LCLS News

The Jan. 29 SLAC Public Lecture, "Quantum Lightswitch: A New Direction in Ultrafast Electronics," is now on YouTube. Joshua Turner, a staff scientist at the Linac Coherent Light Source, explains how the manipulation of atoms' electrons could revolutionize computing.more...


The Man at the End of the X-ray Laser

LCLS News

Daniel DePonte, a pioneer in finding ways to serve up a steady supply of crystals, viruses and other precious samples for laser experiments, is the newly hired sample-delivery group leader for SLAC’s Linac Coherent Light Source.
more...


From the Director of LCLS: Thank You

by Joachim Stöhr

Last week I announced I will step down from my role as ALD at the end of April to return full time to my passion: science. In this, my last column as an ALD, I want to tell you how much I owe this incredible laboratory.more...


X-rays Capture Electron 'Dance'

LCLS News

The way electrons move within and between molecules, transferring energy as they go, plays an important role in many chemical and biological processes. Now researchers have shown they can manipulate and study the fastest steps in these energy transfers with SLAC's X-ray laser, the Linac Coherent Light Source.more...


LCLS announcement

LCLS News

From Jo Stόhr, LCLS Director: After 13 years in SLAC management at SSRL and LCLS, I have decided to step down from my role as Associate Lab Director and return full time to my passion - practicing science - starting May 1 of this year. I consider myself a fortunate man to have experienced the development of synchrotron radiation and X-ray free electron laser science.
more...


A Growth Spurt for X-ray Lasers

LCLS News

Four years after SLAC’s Linac Coherent Light Source opened, blazing new trails in studying ultrafast processes at the scale of atoms and molecules, the field of X-ray laser science is exploding. More than a dozen X-ray free-electron lasers are now under construction or planned across the globe.
more...


A Few Questions with John Galayda

LCLS News

John Galayda talks about what the Linac Coherent Light Source means to him, why he always wears shirts with SLAC logos and how the turtle is doing.
more...


Short Film 'Light Source' Captures Human Side of SLAC Research

LCLS News

A 3-minute film called "Light Source," produced by Alf Seccombe for the Palo Alto Film Festival, profiles the work of Joshua Turner, a scientist at SLAC’s Linac Coherent Light Source X-ray laser facility.
more...


REMINDER: Submit new proposals by Jan. 15th, Update on Long-term Operations, and Holiday Closures

LCLS News

SUBMIT NEW PROPOSALS BY 4 pm PACIFIC on Tuesday, January 15, 2013. This is the only call for regular proposals in 2013. The next opportunity to submit new proposals will be in early 2014 (due to the long shutdown anticipated ~March-October 2014 to begin LCLS II tunneling construction).
  
Submit protein crystal screening (PCS) proposals for the CXI instrument before 4 pm PACIFIC on Tuesday, February 12, 2013.
more...


X-ray Laser Research Ranks in Science Magazine's Top 10

LCLS News

Research at SLAC that could lead to the development of specialized drugs to better combat African sleeping sickness was recognized last month by Science as one of the nine runners-up to its selected science "Breakthrough of the Year."

more...


NEW OPPORTUNITY TO SUBMIT LCLS CXI Protein Crystal Screening Proposals -- Due 2/12/2013

LCLS News

To enhance the effectiveness of the serial crystallography program at the Linac Coherent Light Source (LCLS), we will dedicate shifts for Protein Crystal Screening (PCS) at the CXI instrument during Run 8, July 2013 - March 2014 (LCLS will be shut down August-September 2013). Successful PCS proposals are expected to receive very short allocations of beam time (~up to 6 hours). These PCS proposals will be reviewed by the LCLS PRP BIO panel separately from regular proposals.
 
Submit PCS proposals by February 12, 2013 (Regular LCLS proposals must be submitted by January 15, 2013).
more...


X-ray Laser Takes Aim at Cosmic Mystery

LCLS News

Scientists have used powerful X-rays from the Linac Coherent Light Source to study and measure a key process at work in extreme plasmas like those found in stars, the rims of black holes and other massive cosmic phenomena.
more...


LCLS Scientist Receives Prestigious Prize for X-ray Research

LCLS News

Christoph Bostedt, an instrument scientist at SLAC's Linac Coherent Light Source X-ray laser, is the latest recipient of a prestigious annual prize named for Wilhelm Conrad Röntgen, who discovered X-rays in 1895.
more...


X-ray Laser Helps Fight Sleeping Sickness

LCLS News

An international group of scientists working at SLAC has mapped a weak spot in the parasite that causes African sleeping sickness, pinpointing a promising new target for treating a disease that kills tens of thousands of people each year.
more...


Exploring Middle Ground of Solids and Liquids

LCLS News

In experiments at SLAC's Linac Coherent Light Source, researchers made snapshots of atomic-scale fluctuations in liquids and glasses. The results are a first step toward better understanding the mysterious middle-ground between solid and liquid.
more...


Study Provides Recipe for 'Supercharging' Atoms with X-ray Laser

LCLS News

Researchers using the Linac Coherent Light Source (LCLS) at the U.S. Department of Energy’s (DOE) SLAC National Accelerator Laboratory have found a way to strip most of the electrons from xenon atoms, creating a “supercharged,” strongly positive state at energies previously thought too low.
 
more...


X-ray 'Prism' Explores Chemical Changes at the Molecular Scale

LCLS News

Research at SLAC National Accelerator Laboratory demonstrates that ultrashort, ultrabright X-ray laser pulses can reveal details of chemically important molecules at room temperature and in their natural state. The technique could aid studies of photosynthesis and industrial catalysts, and opens the door to development of other analytic tools at SLAC’s Linac Coherent Light Source.
 
more...


New Tool Puts LCLS X-ray Crystallography on a Diet

LCLS News

A tiny device invented at SLAC National Accelerator Laboratory will make it much easier for scientists to determine the structures of important, delicate proteins by greatly reducing the amount of protein needed for study.
more...


LCLS Fires Up Again

LCLS News

The Linac Coherent Light Source X-ray laser facility restarted experiments this month after a scheduled two-month break for maintenance, upgrades and research and development.
 
The work extended the energy range of X-ray laser pulses and tested a technique for conducting simultaneous experiments, rather than running them one at a time as the LCLS does now.
 
more...


From the Director of LCLS: Exploiting Scientific Synergies Between LCLS Instruments

LCLS News

The instrument scientists who help Linac Coherent Light Source users carry out their experiments are a vital source of expertise. Anyone who glances into one of LCLS’ six experimental hutches can see what a complex task this is, requiring a team of highly skilled people who are dedicated to helping researchers get their desired data. Without our instrument scientists, users would leave empty handed.
 
more...


Users' Meeting and Workshops Draw Hundreds to SLAC

LCLS News

Three hundred participants learned about the latest scientific capabilities at two of SLAC National Accelerator Laboratory's premier experimental facilities for visiting researchers – the Stanford Synchrotron Radiation Lightsource and Linac Coherent Light Source – during the 2012 LCLS/SSRL Users' Meeting and Workshops.  (additional article in SRN)
more...


Using Light to Switch Off Magnetism

LCLS News

One way to make magnetic storage drives faster would be to use light to flip the polarity of tiny patches of material, called magnetic domains, back and forth – from 0 to 1 and back again, in computing terms. Now an experiment at a German X-ray laser facility has captured nanoscale, light-induced changes in a material made of layered cobalt and platinum.
 
more...


Long-Pulse Laser Fires Up at Linac Coherent Light Source

LCLS News

A powerful new laser has fired up at SLAC and is in its final steps toward full operation. It will be an integral component of an instrument designed to study extremely dense, hot matter at levels of detail never before possible.
more...


Register for LCLS/SSRL User Meeting & LCLS II/LUSI II Workshop October 3-6

LCLS News

In conjunction with the annual users' meeting, the LCLS-II / LUSI-II workshop on Saturday, October 6th will follow up on the March LCLS II New Instruments Workshops and provide an opportunity for discussing the design concepts for the LUSI II x-ray instruments. The success of the LCLS-II depends on user input even at this stage as we begin the process of developing detailed specifications for the instrument suite.
more...


LCLS Call for Proposals, Due January 15, 2013

LCLS News

The Linac Coherent Light Source (LCLS) encourages scientists from diverse fields to propose experiments utilizing the LCLS’s unique capabilities to be carried out July 2013 – March 2014 (shutdown August-September 2013).
 
Interested scientists are encouraged to learn more about the instruments and latest developments by contacting LCLS scientists and by reviewing detailed instrument descriptions available on the LCLS User web site.
more...


Bendable Crystals Resolve Properties of X-ray Pulses

LCLS News

A frustrating flaw in a set of custom crystals for an instrument at SLAC National Accelerator Laboratory inspired a solution for an important scientific challenge: how to accurately measure individual pulses from a powerful X-ray laser.
more...


Laser Mashup: Researchers Mix X-ray, Optical Beams to Create Atomic Gauge

LCLS News

In a paper published today in Nature, an international team of researchers working at SLAC's Linac Coherent Light Source describe a promising new method that directly measures, in atomic detail, how light manipulates electric charge in a material.more...


New Single-shot X-ray Technique Makes Magnetic Image

LCLS News

Scientists working at SLAC's Linac Coherent Light Source have captured the first single-shot X-ray microscope image of a magnetic nanostructure and shown that it can be done without damaging the material.more...


DOE Performs Important CD-2 Review for LCLS-II

LCLS News

In a closeout session capping last week’s Department of Energy CD-2 review for the LCLS-II project, SLAC Director Persis Drell said she was very pleased with the review committee’s report and recommendations.more...


Experiments Probe Megavirus in High Resolution

LCLS News

Scientists at SLAC's Linac Coherent Light Source recently lined up samples of some of the largest known viruses for an X-ray "photo shoot" that may produce the highest-resolution 3-D images yet of the mysterious specimens.more...


World's Most Powerful X-ray Laser Beam Refined to Scalpel Precision

LCLS News

With a thin sliver of diamond, scientists at SLAC have transformed the Linac Coherent Light Source into an even more precise tool for exploring the nanoworld. The improvements yield laser pulses focused to higher intensity in a much narrower band of X-ray wavelengths, and may enable experiments that have never before been possible.
more...


Extreme Plasma Theories Put to the Test

LCLS News

The first controlled studies of extremely hot, dense matter have overthrown the widely accepted 50-year-old model used to explain how ions influence each other’s behavior in a dense plasma. The results should benefit a wide range of fields, from research aimed at tapping nuclear fusion as an energy source to understanding the inner workings of stars.more...


From the Deputy Director of LCLS: The Buzz About LCLS Continues

LCLS News

Last week, I met a young scientist from Korea who was at SLAC attending the 2012 Structural Molecular Biology Summer School organized by the Stanford Synchrotron Radiation Lightsource. I took the opportunity to ask for his thoughts on the lack of Linac Coherent Light Source (LCLS) proposals from Korea, given that Korea is building an X-ray free electron laser at their Pohang Accelerator Laboratory.
 
more...


Organic Crystals Put Laser Focus on Magnetism

LCLS News

In the first successful experiment of its type at SLAC's Linac Coherent Light Source, scientists used terahertz frequencies of light to change the magnetic state of a sample and then measured those changes with ultrafast pulses from a powerful X-ray laser.
more...


LCLS-II Project Approaching Critical Milestone Next Month

LCLS News

LCLS-II, the expansion of the world's most powerful X-ray laser, is slated to begin construction at SLAC in late 2013 and be up and running as soon as the middle of 2018. But first it must pass important project review and approval milestones, Project Director John Galayda said during a brown-bag session on July 11.

more...


User Spotlight: Pushing Crystallography to the Extremes at LCLS

LCLS News

Arizona State's Petra Fromme, among the leading researchers in the emerging field of X-ray laser crystallography, visited SLAC in mid-June with a research team to serve as the principal investigator in experiments studying photosynthesis and a series of proteins.
more...


Bringing Telescope Tech to X-ray Lasers

LCLS News

Technology that helps ground-based telescopes cut through the haze of Earth's atmosphere to get a clearer view of the heavens may also be used to collect better data at cutting-edge X-ray lasers like SLAC's Linac Coherent Light Source.more...


Seen Around SLAC: Making Crystals in the Dark

LCLS News

For a series of recent experiments at LCLS, an international research team led by Arizona State University scientists set up a temporary lab at SLAC to grow crystals of biological samples. Because the crystals performed light-induced reactions, the researchers worked in a darkroom and wore night-vision goggles to prepare the samples. more...


LCLS Captures Molecular Shape-Shifting

LCLS News

In pioneering experiments at SLAC National Accelerator Laboratory, an international team of researchers used light to break open simple ring-structured molecules and explored their transformations using a powerful X-ray laser.

more...


X-ray Vision Exposes Aerosol Structures

LCLS News

Researchers at SLAC have captured the most detailed images to date of airborne soot particles, a key contributor to global warming and a health hazard.

The discovery reveals the particles' surprisingly complex nanostructures and could ultimately aid the understanding of atmospheric processes important to climate change, as well as the design of cleaner combustion sources, from car engines to power plants.

more...


LCLS Finding May Lead to Better Models of Matter Under Extreme Conditions

LCLS News

Any nanometer-sized sample exposed to the intense X-ray pulses of SLAC’s Linac Coherent Light Source is quickly ionized – stripped of electrons – and soon explodes. The trick is to collect information on the sample before the damage from the X-rays sets in, a technique known as “diffract before destroy.”
 
more...


Taking Aim at Electrons: an Atomic-scale Shooting Gallery

LCLS News

In experiments resembling an atomic-scale shooting gallery, researchers are pioneering a new way to do advanced chemical analysis by zapping the innermost electrons out of atoms with powerful X-ray laser pulses from SLAC’s Linac Coherent Light Source (LCLS).
more...


LCLS will offer self-seeded mode in Run 7

LCLS News

Since January 2012, LCLS has been testing the use of a diamond crystal monochromator located part way down the FEL undulator to produce self-seeded pulses of hard X-rays.  The tests have successfully demonstrated seeding of very short FEL pulses, though R&D is continuing.  It is anticipated that self-seeded operation may be advantageous to some user experiments, and that by the beginning of Run 7 LCLS will be in a position to reliably offer self-seeded operation to users in an exploritory mode.
more...


Power Plants: Scientists Use X-ray Laser to Probe Engines of Photosynthesis

LCLS News

The molecular power plants that carry out photosynthesis are at the root of a scientific quest to learn how they channel energy from sunlight to split water into oxygen and hydrogen.

Understanding these fundamental processes could help scientists develop technologies that replicate nature’s handiwork to produce cheaper and more efficient fuels.

more...


8-Detector Array Now Available for LCLS Experiments

LCLS News

A team of researchers at SLAC has built and tested an array of compact, modular detectors that provides more flexibility in capturing data from experiments at the Linac Coherent Light Source (LCLS) X-ray laser.
The detectors provide a miniaturized, customizable complement to the larger detectors already in place at the Coherent X-ray Imaging (CXI) and X-ray Pump Probe (XPP) instruments at LCLS. Eight of the modular detectors were installed for use during a CXI experiment in May – the first time more than one of them had been used in an experiment – and they are now available for scientific users
more...


X-ray Laser Probes Biomolecules to Individual Atoms

LCLS News

An international team led by the U.S. Department of Energy's (DOE) SLAC National Accelerator Laboratory has proved how the world's most powerful X-ray laser can assist in cracking the structures of biomolecules, and in the processes helped to pioneer critical new investigative avenues in biology.

more...


Lower Energy Could Lead to More Biological Imaging at LCLS

LCLS News

While SLAC's Linac Coherent Light Source was designed to push the limits as a high-energy X-ray laser, users' requests have led staff at the facility to successfully step it back to a lower minimum energy for some experiments.
more...


LCLS Graphite Experiment Poses New Questions for Researchers

LCLS News

In experiments at SLAC National Accelerator Laboratory, a powerful X-ray laser blasted solid carbon crystals into a liquid and plasma even faster than expected, raising new questions about how these intense beams interact with matter.

more...


X-ray Laser Uncovers Secrets of Complex Oxide Material

LCLS News

An international team of researchers has used SLAC’s Linac Coherent Light Source (LCLS) to discover never-before-seen behavior by electrons in complex materials with extraordinary properties.

more...


From the Director of LCLS: Prioritizing Scientific Instruments for LCLS-II

LCLS News

Growing SLAC into the premier photon science laboratory, a key part of our scientific mission, requires us to build and operate world-leading facilities. This means the Linac Coherent Light Source (LCLS) must remain at the cutting edge of hard X-ray free-electron laser (XFEL) science and technology across the globe.

more...


FLASH Experiment Opens New Avenue for FEL Research

LCLS News

An experiment conducted at FLASH, a free-electron laser located at the German national laboratory DESY, has already made its mark on research at SLAC’s Linac Coherent Light Source, says LCLS instrument scientist Christoph Bostedt.
more...


LCLS Shines at Prestigious Celsius Lecture

LCLS News

SLAC’s Linac Coherent Light Source (LCLS) was a star of the show at this year’s prestigious Celsius Lecture at Uppsala University in Sweden, given by Professor Henry Chapman of the Center for Free-Electron Laser Science, DESY, and University of Hamburg, Germany.

more...


Scientists Use LCLS to See Photovoltaic Process in Action

LCLS News

A surprising atomic-scale wiggle underlies the way a special class of materials reacts to light, according to research that may lead to new devices for harvesting solar energy.
For decades, scientists have known that some ferroelectric materials – materials that possess a stable electrical polarization switchable by an external electric field – are also photovoltaic: They produce an electric voltage when exposed to light, just as solar cells do. But it was not clear how the light induced voltages in these materials.
more...


Shaken, Not Heated: the Ideal Recipe for Manipulating Magnetism

LCLS News

Scientists have found a way to distort the atomic arrangement and change the magnetic properties of an important class of electronic materials with ultra-short pulses of terahertz (mid-infrared) laser light without heating the material up. While the achievement is currently of purely scientific interest, the researchers say this new approach control could ultimately lead to extremely fast, low-energy, non-volatile computer memory chips or data-switching devices.
more...


World’s Most Powerful X-ray Laser Creates 2-Million-Degree Matter

LCLS News

Researchers working at the U.S. Department of Energy’s (DOE) SLAC National Accelerator Laboratory have used the world’s most powerful X-ray laser to create and probe a 2-million-degree piece of matter in a controlled way for the first time. This feat, reported today in Nature, takes scientists a significant step forward in understanding the most extreme matter found in the hearts of stars and giant planets, and could help experiments aimed at recreating the nuclear fusion process that powers the sun.

more...


Scientists Create First Atomic X-ray Laser

LCLS News

Scientists working at the U.S. Department of Energy’s (DOE) SLAC National Accelerator Laboratory have created the shortest, purest X-ray laser pulses ever achieved, fulfilling a 45-year-old prediction and opening the door to a new range of scientific discovery.

more...


Controlling the Inner Electron Dance

LCLS News

When an electron is propelled out of an atom’s innermost orbital, the hole the departing electron leaves usually is filled within a few micro-billionths of a second by a different electron moving in from a higher orbital. But is there a way to force the original electron back where it came from, making the atom immune to such electron rearrangements?

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LCLS Teams Up with DESY on Shortest X-ray Exposure of a Protein Crystal Ever

LCLS News

An international research team headed by DESY scientists from the Center for Free-Electron Laser Science (CFEL) in Hamburg, Germany, has recorded the shortest X-ray exposure of a protein crystal ever achieved. The incredible brief exposure time of 30 femtoseconds (0.000 000 000 000 03 seconds) opens up new possibilities for imaging molecular processes with X-rays.

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Fifth X-ray Instrument at LCLS Debuts, With a Bead on Disorderly Structures

Glennda Chui

After five night shifts of shooting pairs of X-ray pulses through soups of fine sand and gold, Aymeric Robert was tired but exhilarated. The first experiment with an instrument he helped bring into being – the X-ray Correlation Spectroscopy (XCS) instrument at SLAC’s Linac Coherent Light Source – had just ended, launching a new tool for understanding liquids, glasses and other less-than-orderly substances.more...


Seen Around SLAC: Thanksgiving Shift

Lori Ann White

The LCLS doesn't shut down for Thanksgiving, so LCLS laser division member Ryan Coffee and the rest of his team did the next best thing: They brought Thanksgiving dinner to their experiment.

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Researchers Freely Share LCLS Experiment Data on Public Database

Helen Shen

In 2009, when biophysicist Ilme Schlichting and her colleagues applied to use the X-ray laser at SLAC’s Linac Coherent Light Source, they added a radical idea to their proposal: They would make all the data they collected on two viruses and a nanoparticle available to the public one year after the experiment ended. more...


Firing Up LCLS for Fifth Run - With All Six Instruments

Janet Rae-Dupree

After four hugely successful runs, operation of the Linac Coherent Light Source has been paused briefly to prepare for the Nov. 17 start of Run 5 – the first that will see all six experimental stations come online. more...


New Life for Old Electrons in Biological Imaging, Sensing Technologies

Janet Rae-Dupree

Using leftover high-speed electrons from SLAC’s Linac Coherent Light Source, researchers have successfully generated intense pulses of light in a largely untapped part of the electromagnetic spectrum – the so-called terahertz gap. more...


LCLS-II Passes Key Milestone in DOE Approval Process

Glennda Chui

The Department of Energy has approved a preliminary budget, schedule and design plans for the LCLS-II project, an expansion of SLAC’s Linac Coherent Light Source. This approval, known as “Critical Decision 1” (CD-1), sets the stage for the development of a more detailed engineering plan for the project.more...


Tools of the Trade: Diamonds Are Forever … for Focusing Intense X-rays

Mike Ross

Diamonds can add more than sparkle and style to X-ray experiments at the Linac Coherent Light Source. They are giving scientists a way to focus the LCLS’s powerful X-rays to a much tinier, brighter point without destroying the very device that does the focusing, according to a report from the Swiss team that created the new diamond-based technology.

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Richard Lee: New LCLS Division Chief for Science, Research and Development

Janet Rae-Dupree

When Richard “Dick” Lee arrives at SLAC today to assume his duties heading up the Science, Research and Development Division of the Linac Coherent Light Source, he’ll feel right at home.  Lee jokes that he has spent more time over the last few years at SLAC while working at Lawrence Livermore National Lab than he has at Lawrence Livermore.

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Sorting Millions of Snapshots from the LCLS

Glennda Chui

The great thing about SLAC’s Linac Coherent Light Source is that it churns out incredible volumes of data about things no one has ever seen before, such as snapshots of individual viruses. The hard thing is: What to do with all that data? This is the problem that Abbas Ourmazd and colleagues Peter Schwander and Chun Hong Yoon of the University of Wisconsin-Milwaukee are working on. 

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Tools of the Trade: New X-ray Microscopy Technique Images Magnetic Nanostructure

Mike Ross

A new X-ray technique for producing instantaneous nanoscale images of the magnetic polarity in materials has been demonstrated by SLAC scientist Joshua Turner. Such a capability is important for understanding the basics of magnetism and how new “spintronic” materials, which use the  "up-down" spins of electrons to furnish the "on-off" instructions currently provided to electronic devices by plus and minus electric charges, would behave in future energy-efficient computers, digital memories and data storage devices. more...


Ultrafast Lasers at the Linac Coherent Light Source

Alan Fry

The Linac Coherent Light Source at SLAC is the world’s first hard X-ray free-electron laser, or FEL, and one of the most complex light sources ever developed. Its ultrashort pulses of X-ray laser light, a billion times brighter than any light source before it, are uniquely capable of probing the detailed structure and dynamics of atoms, molecules, and materials. But this brilliant beam is not the only laser at work in the LCLS. Other ultrafast lasers kick off the process that generates the X-ray laser beam and play an essential role in experiments at the LCLS.more...


Claudio Pellegrini: A Patriarch of the LCLS

Lori Ann White

"It takes a village," as Hillary Clinton famously wrote, "to raise a child." Similarly, says physicist Claudio Pellegrini, it takes an entire scientific community to create a ground-breaking new piece of technology—one that not only adds to the store of human knowledge through its use, but requires its designers to push back scientific and technological frontiers just to build it in the first place. The Linac Coherent Light Source is a case in point. more...


LCLS-II Test Undulator

Brad Plummer

This test undulator is on loan from Argonne National Laboratory and currently resides in SLAC's Building 26, where the Metrology Department's Magnetic Measurement Group is trying out measurement techniques to be used on the LCLS II project, a proposed second X-ray free-electron laser that would expand on SLAC's Linac Coherent Light Source. Originally built for the Advanced Photon Source lightsource at Argonne, this "hybrid" undulator uses permanent magnets interposed with steel poles, an arrangement which helps intensify the magentic field (and which creates the appearance of "teeth"). Unlike LCLS I, the LCLS II will use variable-gap undulators, like this one, in which the movable "jaws" can be opened or closed to alter the properties of X-rays the undulator generates. more...


LCLS Beam Demonstrates Groundbreaking Flexibility

Kelen Tuttle

In the first 18 months of Linac Coherent Light Source operation, the electron beam that drives the X-ray laser has exceeded expectations—so much so that SLAC’s accelerator operators can offer impressive flexibility in crafting the beam to suit experiments, often changing its performance in mere minutes. more...


Fourth LCLS Instrument Captures Its First X-ray Image

Lauren Rugani

The Coherent X-ray Imaging instrument at the Linac Coherent Light Source achieved the first X-ray image from its newly installed detector last Tuesday. The detector was installed inside the instrument’s vacuum-sealed experimental chamber in January. Through this week, CXI instrument scientists will test and adjust the new device in preparation for arrival of the first experimental users this Sunday. more...


Giant Virus, Tiny Protein Crystals Show X-ray Laser's Power and Potential

SLAC Press Release

Two studies to be published February 3 in Nature demonstrate how the unique capabilities of the world’s first hard X-ray free-electron laser—the Linac Coherent Light Source, located at the Department of Energy’s SLAC National Accelerator Laboratory—could revolutionize the study of life. more...


LCLS CXI Instrument Receives First X-rays

Lauren Rugani

X-rays entered the Linac Coherent Light Source's Far Experimental Hall for the first time Saturday, as part of commissioning for the Coherent X-ray Imaging instrument. The team of instrument scientists, accompanied by many staff members of the Photon Controls and Data Systems groups, other LCLS staff and a few onlookers welcomed X-rays to CXI shortly before 2:30 p.m. This was followed by several hours of SLAC Radiation Physics Department surveys and validation of the instrument hutch. more...


First Experiments with Third LCLS Instrument Go to the Source

Lauren Rugani

The third round of experiments at the Linac Coherent Light Source began earlier this month at a whole new level of capability. For the first time they included research with the third LCLS instrument, the X-Ray Pump Probe, whose hard X-rays penetrate deeper into matter than the soft X-rays used by the first two instruments. This makes the LCLS XPP unique in the world. more...


XPP Instrument Blasts Past Key Milestones

Lauren Rugani

The X-ray Pump Probe instrument at the Linac Coherent Light Source is installed and ready for its first user experiments several weeks ahead of schedule, thanks in part to funds provided by the American Recovery and Reinvestment Act. more...


Fourth LCLS Instrument Moves In

Brad Plummer

Last Saturday brought perfect chamber-moving weather, and a handful of SLAC riggers, vacuum assembly personnel and scientists took full advantage of the conditions by moving the central piece of the Coherent X-ray Imaging instrument into the Far Experimental Hall of the Linac Coherent Light Source. The 4,000 pound, red girder and primary chamber assembly made their way to the FEH at one mile an hour, strapped to a flatbed trailer. There, the team guided the instrument down the tunnel incline and into the CXI hutch, the middle of three hutches in the FEH. Assembly crews will spend the next few weeks mounting a further complement of instruments and chambers to the girder in preparation for beam this December. more...


Hollow Molecules Take Center Stage

Kelen Tuttle

Barely two months after publication of the first Linac Coherent Light Source results on hollow atoms, two papers published in Physical Review Letters last Friday unveil the first results for hollow molecules. These studies show that the unprecedented intensity of the LCLS beam can reveal detailed information about a molecule's structure and dynamics. more...


LCLS Dedication: The Celebration (Photos and Video)

LCLS News

Monday's dedication of the Linac Coherent Light Source celebrated the construction, commissioning and first results from the groundbreaking new scientific tool.  more...


From the SLAC Director: Remarks on the Dedication of LCLS

Persis Drell

On Friday, April 10, 2009 at 10 p.m. the phone rang. I was sound asleep (lab directors go to bed early on Friday night) and as I struggled to open my eyes, the voice on the other end said "We have a laser!" And with that, the LCLS era at SLAC had begun. more...


Energy Secretary Dedicates World's Most Powerful X-ray Laser

SLAC Press Release

Secretary of Energy Steven Chu on Monday dedicated the Linac Coherent Light Source (LCLS), the world's most powerful X-ray laser, at the Department of Energy's SLAC National Accelerator Laboratory. more...


First Results from the LCLS: Unpeeling Atoms and Molecules from the Inside Out

SLAC Press Release

The first published scientific results from the world's most powerful hard X-ray laser, located at the Department of Energy's SLAC National Accelerator Laboratory, show its unique ability to control the behaviors of individual electrons within simple atoms and molecules by stripping them away, one by one—in some cases creating hollow atoms. more...


First Results from the LCLS: Unpeeling Atoms and Molecules from the Inside Out

SLAC Press Release

The first published scientific results from the world's most powerful hard X-ray laser, located at the Department of Energy's SLAC National Accelerator Laboratory, show its unique ability to control the behaviors of individual electrons within simple atoms and molecules by stripping them away, one by one—in some cases creating hollow atoms. more...


First Scientific Paper from LCLS Explores Molecules' Interaction with Ultrashort, Ultrafast X-ray Pulses

Glennda Chui

The first published scientific results from experiments at SLAC's Linac Coherent Light Source are out! The report, published today in Physical Review Letters, is the first look at how molecules respond to ultrafast pulses of ultra-bright light from the world's most powerful X-ray laser. more...


First Soft X-rays Explore Ultrafast Magnetic Behaviors

Lauren Rugani

The first user experiments on the Soft X-ray instrument at the Linac Coherent Light Source wrapped up yesterday. Research led by Andreas Scherz, a physicist at the Stanford Institute for Materials and Energy Science, and Jan Lüning from the University Pierre and Marie Curie in France looked to explain on the nanoscale how magnetic fields switch between "up" and "down" states—a key process used to store data in computers. more...


Hard X-rays Reach LCLS Pump Probe Instrument

Julie Karceski

On June 7, the X-ray Pump Probe instrument became the first of the Linac Coherent Light Source's scientific instruments to receive hard X-rays.  "This is a big milestone for everyone involved," said instrument scientist David Fritz. "Now the fun begins!" more...


First X-ray Laser's Early Success Brings Approval for Next-phase Facility

SLAC Press Release

The U.S. Department of Energy has granted approval for SLAC National Accelerator Laboratory—home of the Linac Coherent Light Source (LCLS), the world's first hard X-ray laser—to begin planning a second X-ray laser at the laboratory. The LCLS, which began operation in April 2009, generates ultra-fast, ultra-bright pulses of X-ray laser light which are already providing new insights into the atomic world. LCLS-II would give investigators access to new regions of the X-ray spectrum and improved control over the X-ray beam. It will also accommodate a larger number of research scientists working simultaneously. more...


Matter in Extreme Conditions Instrument on Track for Early 2011 Construction Start

Julie Karceski

The Linac Coherent Light Source's sixth scientific instrument, the Matter in Extreme Conditions instrument, is blitzing through the project planning and approval stages. Project Manager Richard Boyce and Instrument Scientist Hae Ja Lee hosted a successful review of the Department of Energy milestone Critical Decision 1 in January, and received final approval on March 1. With CD-1, the project's preliminary budget and design plans are now approved, and Boyce and Lee are working hard to obtain approvals to start construction by early next year. more...


LCLS Launches User Science Today

Kelen Tuttle

SLAC's Linac Coherent Light Source opened for business this morning, and the first user experiment is now underway. As the world's first hard X-ray laser, the LCLS offers scientists the ability to study the fundamental behavior of atoms and molecules on unprecedented length- and time scales. more...


Where the LCLS Ends: The SXR Beamline

Kelen Tuttle

The Linac Coherent Light Source beam will pack a wallop, providing 10 trillion X-ray photons in a flash of about 100 femtoseconds. For comparison, it takes today's best storage-ring-based synchrotron radiation facilities a full second to provide that many photons. Beginning next spring, researchers will begin to conduct experiments with these powerful bursts of X-ray light using the Soft X-Ray instrument, located on the second LCLS beamline to begin operation. more...


Where the LCLS Ends: The MEC Instrument

Kelen Tuttle

The sixth and final instrument currently planned for the Linac Coherent Light Source will investigate the extremes of the universe around us. The Matter in Extreme Conditions instrument, supported by DOE Office of Science Recovery Act funds, will allow researchers to create and probe matter at extreme temperatures, extreme pressures and extreme densities. The instrument is slated for completion in 2013. more...


LCLS AMO Instrument Sees First Light

Kelen Tuttle

Yesterday evening, the Linac Coherent Light Source X-ray beam streamed into the Atomic, Molecular and Optical Science instrument for the first time. more...


Where the LCLS Ends: The CXI Instrument

Kelen Tuttle

The Coherent X-ray Imaging instrument, the fourth scientific instrument to be installed at the Linac Coherent Light Source, will view single objects smaller than a micron, or one millionth of a meter—tiny. But even better than that, it may be the first X-ray instrument ever to do so for individual biological molecules when it comes online in 2011. more...


Where the LCLS Ends: The XCS Instrument

Kelen Tuttle

The Linac Coherent Light Source will pack a wallop. When it begins operation later this year, the LCLS will provide 10 trillion X-ray photons in a flash of about 100 femtoseconds—a quadrillion times faster than accomplished by today's best storage-ring-based synchrotron lightsources. When these powerful bursts of X-ray light reach the LCLS Far Experimental Hall in 2012, they will for the first time encounter the X-Ray Correlation Spectroscopy instrument, XCS for short. Using the powerful LCLS beam and a new extension of an experimental technique, the XCS will allow researchers to observe dynamical interactions within molecules on very short time scales. more...


Where the LCLS Ends: The XPP Instrument

Kelen Tuttle

After journeying more than 100 meters through undulators and diagnostic equipment, X-rays from the Linac Coherent Light Source will wiggle into the subterranean Near Experimental Hall and, beginning in 2010, zip into the X-ray Pump Probe science instrument. There they will meet a sample undergoing a reaction or in an excited state and, like a camera flash in a dark room, light the sample so that researchers can photograph it in detail. more...


Where the LCLS Ends: The AMO Instrument

Kelen Tuttle

When the Linac Coherent Light Source starts producing the world's first hard X-ray laser pulses later this year, they will all be headed to one place: the Atomic, Molecular and Optical science instrument. A complex creature comprising spectrometers, focusing optics, and a synchronized high-power optical laser, the AMO will be the first instrument in operation at LCLS—and the only one until March 2010. more...


 

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