indexGIXS: software for visualizing and interactive indexing of grazing-incidence scattering data.

Grazing-incidence small- and wide-angle X-ray scattering are widely applied for the study of functional organic thin films, be it for the characterization of nanostructured morphologies in block copolymers, nanocomposites or nanoparticle assemblies, or the packing and orientation of organic semiconductors such as small aromatic molecules and conjugated polymers. Typically, organic thin films are uniaxial powders, with specific crystallographic planes oriented parallel to the substrate surface. The associated fiber-texture scattering patterns are complicated by refraction corrections and multiple scattering. Here, we present an interactive graphics tool to index such patterns.