A small angle x-ray scattering workstation for National Laboratory for Synchrotron Light

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Abstract
A versatile, modular, and high-vacuum compatible small angle x-ray scattering workstation is under construction at National Laboratory for Synchrotron Light. It will use a wiggler source to be installed in the 1.15-GeV UVX2 electron storage ring. The white beam is monochromatized by Bragg reflection using a silicon triangular-shaped, asymmetrically cut and bent crystal. The movements required for θ rotation, crystal bending, and tilting are performed by an external goniometer and two specially designed translation stages, respectively. The x-ray wavelength will cover the range 1 Å<λ<2 Å and can be varied by θ rotation of the whole monochromator crystal and housing and 2θ rotation of the monochromatic beam path setup. The monochromator, secondary shutter, slits, sample holder, beam stopper, and detection system are stepping motor driven and computer controlled

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