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An Office of Science User Facility

Soft X-ray Materials Science (SXR)

Beamline Components

A comprehensive overview of the SXR instrument is published in
Review of Scientific Instrument, 83, 043107 (2012).

The optical design and monochromator performance are published in
Review of Scientific Instruments, 82, 093104 (2011).



Transmission Sample System

Transmission Sample System The transmission sample system (TSS) may be used to introduce transmission samples upstream of the monochromator. It is used for calibrating the wavelength selection of the monochromator but is also available to users for experiments. As shown, the TSS has a single manipulator attached for sample insertion. The TSS can be used to measure the pulse arrival time by measuring the x-ray to optical cross correlation.








Plane Grating Monochromator

Single Pulse Shutter
The PGM system integrates a four jaw entrance aperture, two gratings located in the AMO hutch.  The exit slit is in the SXR Hutch.  The monochomator system was designed and fabricated by BesTec in Berlin Germany.








Gas Monitor Detector

Gas Monitor Detector
The gas monitor detector is located after the exit slit for the monochromator and can provide shot to shot measurements of the number of photons in each pulse from 5uJ to 5mJ with 4-6% absolute uncertainty. The detection system uses rare gas ionization and was developed at DESY.





Focusing Optics

Focusing OpticsTwo elliptically bent mirrors will be used to image the FEL beam into the experimental chamber. Dynamically bent mirrors can be adjusted to focus the beam into an arbitrary position in the endstation to effectively change the focal spot on the sample, depending upon the experimental requirements.



SLAC SLAC National Accelerator Laboratory, Menlo Park, CA
Operated by Stanford University for the U.S. Dept. of Energy