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Ce contenu n'est pas disponible en français.SwissFEL Furka
The SwissFEL Furka Experimental Station
The Furka experimental endstation, located at the soft x-ray Athos beamline of the SwissFEL, is dedicated to the study of quantum materials using time-resolved Resonant Inelastic and Elastic X-ray Scattering (tr-RIXS and tr-REXS) as well as X-Ray Absorption (tr-XAS) spectroscopy. In particular, tr-RIXS opens new scientific opportunities thanks to its unique capability to probe energy and momentum-resolved dynamics of elementary excitations involving different degrees of freedom in solids.
The endstation is in pilot phase, and user operation will start in January 2024.
FEL parameters
| Athos parameters at Furka |
|---|
| Photon energy range: 400 - 1900 eV |
| Pulse energy (SASE): 4 mJ @710 eV |
| Monochromator resolving power: up to 10'000 |
| Pulse duration: 30 fs rms |
| Repetition Rate: 100 Hz |
| UHV 4-circle diffractometer |
|---|
| Theta range: -95 to 95 deg |
| Azimuth range: -45 to 45 deg |
| Tilt range: -30 to +30 deg |
| 2Theta range: 0 to 180 deg |
| Temperature at the sample: 25 K to room temperature |
Pump laser parameters
| Furka pump laser |
|---|
| NIR/Visible: 800, 400 & 266 nm with up to 100 mJ/cm2 |
| Mid-IR: 4 to 20 um with up to 50 uJ per pulse |
| Thz: generation with various organic crystals available, e.g, peak field with OH1 about 200 KV/cm |
RIXS parameters
| Furka RIXS spectrometer |
|---|
| resolving power E/DE: up to 15 000 |
| 2D Cmos detector |
| 2theta range: 140 to 50 deg |
