Small-angle options of the upgraded ultrasmall-angle x-ray scattering beamline BW4 at HASYLAB
- HASYLAB, DESY, Notkestrasse 85, D-22603 Hamburg (Germany)
We present the upgrade and present status of the ultrasmall-angle x-ray scattering (USAXS) beamline BW4 at the Hamburg Synchrotronstrahlungslabor. In order to extend the accessible scattering vector range, new small-angle setups have been established, making use of the high flux and small divergence of BW4. In standard transmission geometry using a beam size of B=400x400 {mu}m{sup 2} (horizontalxvertical), typical small-angle resolution ranges from d{sub max}=90 to 650 nm, depending on sample-to-detector distance. Additionally a new microfocus option has been established. This microfocus option allows reducing the sample size by one order of magnitude. Using parabolic beryllium compound refractive lenses, a new standard beam size of B=65x35 {mu}m{sup 2} (horizontalxvertical) can be provided. The {mu}-SAXS resolution is as high as d{sub max}=150 nm. Using {mu}-SAXS in combination with grazing incidence ({mu}-GISAXS) on a standard noble metal gradient multilayer, we prove the feasibility of {mu}-GISAXS experiments at a second generation source.
- OSTI ID:
- 20853516
- Journal Information:
- Review of Scientific Instruments, Vol. 77, Issue 8; Other Information: DOI: 10.1063/1.2336195; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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