Detector program for the LCLS complex

Over five years of operation the Linac Coherent Light Source has helped established free-electron lasers as a radically new paradigm for x-ray-based science. Part of this has been the demonstration of novel experimental techniques and the qualification of established methods in the LCLS environment. To take full advantage of this machine, a complimentary suite of detectors must be made available to scientists. Progress towards this goal will be described along with experience gained from operating within the LCLS environment. The status of currently installed detectors as well as future plans will be presented.

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Seventh User Workshop on High-Power Lasers at the Linac Coherent Light Source

Instruments ◽

10.3390/instruments4020013 ◽

2020 ◽

Vol 4 (2) ◽

pp. 13

Author(s):

Gilliss Dyer ◽

Cindy Bolme ◽

Siegfried Glenzer

Keyword(s):

Light Source ◽

High Power ◽

Free Electron Lasers ◽

Coherent Light ◽

High Power Lasers ◽

X Ray ◽

Linac Coherent Light Source ◽

User Workshop ◽

Coherent Light Source ◽

Future Plans

We report on a seventh annual workshop in a series focused on science realized by the combination of hard X-ray free electron lasers with high power optical lasers, hosted at the SLAC National Accelerator Laboratory in Menlo Park, CA. Members from the user community of the Matter in Extreme Conditions (MEC) endstation of the Linac Coherent Light Source (LCLS) and other scientists met with local scientists to discuss developments at LCLS and MEC and related facilities, including experimental results and future plans.

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X-ray–optical cross-correlator for gas-phase experiments at the Linac Coherent Light Source free-electron laser

Applied Physics Letters ◽

10.1063/1.3695163 ◽

2012 ◽

Vol 100 (12) ◽

pp. 121107 ◽

Cited By ~ 64

Author(s):

S. Schorb ◽

T. Gorkhover ◽

J. P. Cryan ◽

J. M. Glownia ◽

M. R. Bionta ◽

...

Keyword(s):

Gas Phase ◽

Light Source ◽

Free Electron ◽

Free Electron Laser ◽

Coherent Light ◽

X Ray ◽

Linac Coherent Light Source ◽

Coherent Light Source

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Photon-in photon-out hard X-ray spectroscopy at the Linac Coherent Light Source

Journal of Synchrotron Radiation ◽

10.1107/s1600577515004488 ◽

2015 ◽

Vol 22 (3) ◽

pp. 612-620 ◽

Cited By ~ 28

Author(s):

Roberto Alonso-Mori ◽

Dimosthenis Sokaras ◽

Diling Zhu ◽

Thomas Kroll ◽

Mathieu Chollet ◽

...

Keyword(s):

Electronic Structure ◽

Light Source ◽

Atomic Level ◽

Free Electron Lasers ◽

Coherent Light ◽

X Ray ◽

Source Characteristics ◽

Structure And Dynamics ◽

Linac Coherent Light Source ◽

Coherent Light Source

X-ray free-electron lasers (FELs) have opened unprecedented possibilities to study the structure and dynamics of matter at an atomic level and ultra-fast timescale. Many of the techniques routinely used at storage ring facilities are being adapted for experiments conducted at FELs. In order to take full advantage of these new sources several challenges have to be overcome. They are related to the very different source characteristics and its resulting impact on sample delivery, X-ray optics, X-ray detection and data acquisition. Here it is described how photon-in photon-out hard X-ray spectroscopy techniques can be applied to study the electronic structure and its dynamics of transition metal systems with ultra-bright and ultra-short FEL X-ray pulses. In particular, some of the experimental details that are different compared with synchrotron-based setups are discussed and illustrated by recent measurements performed at the Linac Coherent Light Source.

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Compound refractive lenses as prefocusing optics for X-ray FEL radiation

Journal of Synchrotron Radiation ◽

10.1107/s1600577516001636 ◽

2016 ◽

Vol 23 (2) ◽

pp. 425-429 ◽

Cited By ~ 9

Author(s):

Philip Heimann ◽

Michael MacDonald ◽

Bob Nagler ◽

Hae Ja Lee ◽

Eric Galtier ◽

...

Keyword(s):

Energy Range ◽

Light Source ◽

Free Electron ◽

Free Electron Laser ◽

Extreme Conditions ◽

Coherent Light ◽

Angular Aperture ◽

X Ray ◽

Linac Coherent Light Source ◽

Coherent Light Source

The performance of X-ray free-electron laser beamlines may be limited by the angular aperture. Compound refractive lenses (CRLs) can be employed to prefocus the X-ray beam, thereby increasing the beamline transmission. A prefocusing CRL was implemented in the X-ray transport of the Matter under Extreme Conditions Instrument at the Linac Coherent Light Source. A significant improvement in the beamline transmission was calculated over the 3–10 keV photon energy range. At 5 keV, the relative X-ray intensity was measured and a factor of four increase was seen in the beamline transmission. The X-ray focus was also determined by the ablation imprint method.

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Development and calibration of mirrors and gratings for the soft x-ray materials science beamline at the Linac Coherent Light Source free-electron laser

Applied Optics ◽

10.1364/ao.51.002118 ◽

2012 ◽

Vol 51 (12) ◽

pp. 2118 ◽

Cited By ~ 15

Author(s):

Regina Soufli ◽

Mónica Fernández-Perea ◽

Sherry L. Baker ◽

Jeff C. Robinson ◽

Eric M. Gullikson ◽

...

Keyword(s):

Light Source ◽

Free Electron ◽

Free Electron Laser ◽

Materials Science ◽

Coherent Light ◽

X Ray ◽

Linac Coherent Light Source ◽

Coherent Light Source

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The soft x-ray instrument for materials studies at the linac coherent light source x-ray free-electron laser

Review of Scientific Instruments ◽

10.1063/1.3698294 ◽

2012 ◽

Vol 83 (4) ◽

pp. 043107 ◽

Cited By ~ 90

Author(s):

W. F. Schlotter ◽

J. J. Turner ◽

M. Rowen ◽

P. Heimann ◽

M. Holmes ◽

...

Keyword(s):

Light Source ◽

Free Electron ◽

Free Electron Laser ◽

Coherent Light ◽

X Ray ◽

Linac Coherent Light Source ◽

Coherent Light Source

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Development of ultrafast capabilities for X-ray free-electron lasers at the linac coherent light source

Philosophical Transactions of The Royal Society A Mathematical Physical and Engineering Sciences ◽

10.1098/rsta.2018.0386 ◽

2019 ◽

Vol 377 (2145) ◽

pp. 20180386 ◽

Cited By ~ 14

Author(s):

Ryan N. Coffee ◽

James P. Cryan ◽

Joseph Duris ◽

Wolfram Helml ◽

Siqi Li ◽

...

Keyword(s):

Light Source ◽

Free Electron ◽

Cross Correlation ◽

X Rays ◽

Coherent Light ◽

High Brightness ◽

X Ray ◽

Linac Coherent Light Source ◽

Optical Laser ◽

Coherent Light Source

The ability to produce ultrashort, high-brightness X-ray pulses is revolutionizing the field of ultrafast X-ray spectroscopy. Free-electron laser (FEL) facilities are driving this revolution, but unique aspects of the FEL process make the required characterization and use of the pulses challenging. In this paper, we describe a number of developments in the generation of ultrashort X-ray FEL pulses, and the concomitant progress in the experimental capabilities necessary for their characterization and use at the Linac Coherent Light Source. This includes the development of sub-femtosecond hard and soft X-ray pulses, along with ultrafast characterization techniques for these pulses. We also describe improved techniques for optical cross-correlation as needed to address the persistent challenge of external optical laser synchronization with these ultrashort X-ray pulses. This article is part of the theme issue ‘Measurement of ultrafast electronic and structural dynamics with X-rays’.

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Atom Specific Ultrafast Surface Chemistry using a Soft X-ray Laser

Acta Crystallographica Section A Foundations and Advances ◽

10.1107/s2053273314098751 ◽

2014 ◽

Vol 70 (a1) ◽

pp. C124-C124

Author(s):

Anders Nilsson

Keyword(s):

Emission Spectroscopy ◽

Catalytic Reactions ◽

Hot Electron ◽

Free Electron Lasers ◽

Coherent Light ◽

X Ray ◽

Linac Coherent Light Source ◽

X Ray Absorption ◽

Optical Laser ◽

Coherent Light Source

Catalysis is central for many chemical energy transformations that occur at interfaces. One of the dreams is to follow catalytic reactions in real time from reactants over various intermediates to products. The prospective for the study of chemical reactions on surfaces using X-ray free-electron lasers (Linac Coherent Light Source, or LCLS, at SLAC National Accelerator Laboratory) will be presented. We induced the hot electron and phonon mediated excitation of adsorbates on Ru(0001) with synchronized excitation by a femtosecond optical laser pulse. We have followed the ultrafast evolution of the bond distortions, weakening and breaking, using x-ray absorption spectroscopy and x ray emission spectroscopy resonantly tuned to the oxygen core level with ultrashort x-ray pulses delivered from LCLS. We can directly follow the time evolution of the molecular orbitals in an atom-specific way on a subpicosecond timescale. Three examples will be shown CO desorption, Oxygen activation and CO oxidation on Ru(0001).

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