The Spectroscopy and Coherent Scattering (SCS) instrument will enable time-resolved experiments to unravel the electronic and structural properties of complex materials and nanostructures in their fundamental space-time dimensions.
Scientific Instrument SCS
Scientific objectives include, but are not limited to, the understanding and control of complex materials, the investigation of ultrafast magnetization processes on the nanoscale, the real-time observation of chemical reactions in liquids, and the exploration of nonlinear X-ray spectrocopy techniques that are cornerstones at optical wavelengths.
The two baseline SCS experiment stations are complemented with a chemistry station and a high-resolution spectrometer by the Heisenberg RIXS (hRIXS) user consortium. A combination of coherent X-ray scattering with spectroscopy methods will make it possible to investigate atomic as well as electronic details and dynamics on femtosecond time scales with spatial resolutions down to a few nanometers.
Early user science workshop took place in February 2018 where the day one instrumentation was presented and early science cases were discussed. The instrument talks and details on open community proposals can be found here.
Please contact the SCS team for further details and discuss your experiment plans before submitting your proposal.
The beam parameters and instrument specifications for Run 4 can be found here.
Key (expected) features in full user operation
|
Photon Energy |
0.25–3.00 keV |
|---|---|
|
Bandwidth |
0.5% |
|
X-ray pulse energy |
Up to 10 mJ |
|
X-ray pulse duration |
1–100 fs (FWHM) |
|
Mono resolving power |
Up to 10 000; high-resolution grating upgrade <40 000 |
|
Polarization |
Linear and circular |
|
Focal spot size at sample |
1–2 µm (horizontal, vertical) Tunable up to 500 µm |
|
FFT experiment station |
Fixed target sample holder with 50 mm x 50 mm frame Sample transfer system DC electromagnet ≤0.5 T Cryostat sample holder and THz mirror stage |
|
XRD experiment station |
UHV diffractometer for fixed targets (six degrees of freedom) Continuous rotating detector flange: 60º ≤ 2θ ≤ 150º (2θ is scattering angle) Cryostat, THz mirror stage, sample transfer system |
|
Chemistry station |
Liquid jet system |
|
Detectors |
1 Mpx DSSC (4.5 MHz, 640 frames per train) 2 Mpx FastCCD (60 Hz, 1 frame per train) |
|
RIXS Spectrometer |
Information follows, inquire for details |
|
Optical laser system |
800 nm, up to 1 mJ, 15–100 fs 1030 nm, >20 mJ, 850 fs Conversions from visible to IR via SHG, THG, OPA THz (0.3 THz, LiNbO3) |