cSAXS - X12SA:
Coherent Small-Angle X-ray Scattering
Experimental types
Besides the biannual call for proposals, the cSAXS facility offers as part of the European soft-matter infrastructure (ESMI) an additional line of proposals. Frequently, such experiments can be scheduled on shorter notice. The ESMI program can offer travel support for up to two researchers.Experiments performed at cSAXS include, inter alia,
- 3D coherent diffractive imaging (CDI), in particular by ptychographic means, see for example Dierolf et al., Nature 467, 436 (2010). Dedicated instrumentation, which is available to users, is described in Holler et al., Rev. Sci. Instrum. 83, 073703 (2012).
- optics characterization, see for example Vila-Comamala et al. Opt Express 19, 21333 (2011)
- small-angle X-ray scattering (SAXS), e.g., Smeulders et al., Nature 478, 412 (2011), can be performed with spatial resolution as microscopy technique (Deyhle et al. Nanomed-Tanotechnol 7, 694 (2011)) and/or with time resolution in the millisecond range (Westenhoff et al., Nature Methods 7, 775 (2010)).
Setup Images
Images of some typical setups can be found under Endstations.Technical Data
| Energy range | 4 – 19 keV |
|---|---|
| Energy resolution | ΔE/E < 0.02% |
| Spot size on sample (horizontal × vertical) | variable from 1.5 × 0.8mm2 to 20 × 5µm2 |
| total flux (at sample position)* | ~1012photons/sec (at E = 11.2keV, 400mA ring current) |
| Coherent flux* | ~5×109photons/sec (at E = 11.2keV, 400mA ring current) |