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| Keywords: GISAXS.png en Scheme 1 GISAXS scattering geometry The incident beam strikes the sample under a small angle close to the critical angle of total external x-ray reflection The intense reflected beam as well as the intense scattering in the incident plane are attenuated by a rod-shaped beam stop The diffuse scattering from the sample is recorded with an area detector As an example the scattering from a PSPB block copolymer film with perpendicular lamellae is shown in the detector plane The two lobes of scattering correspond to the lateral lamellar period of about 80 nm own Smilgies 2008-10-07 X-ray diffraction | ||||
