Microbeam small-angle scattering experiments and their combination with microdiffraction

The brilliance of undulator X-ray sources can be used to develop microfocus ing optics for wide-angle (WAXS) and small-angle (SAXS) X-ray scattering. A t the ESRF microfocus beamline, a beam size of 10 mu m is obtained by a pin hole collimating system coupled to a double focusing mirror. This allows re solving the first order of collagen (67 nm). Glass capillary optics provide s a beam size close to one micron, however, with a more limited resolution. A high resolution CCD detector allows combined SAXS/WAXS experiments for o ne detector setting.