Beamline 6-2c is a wiggler end-station dedicated to hard x-ray transmission microscopy. The full-field transmission X-ray microscope (TXM) is capable of 2D and 3D imaging (radiography and tomography), as well as spectroscopic imaging. Scientific areas include batteries, catalysts, fuel cells, among other nanoscale chemistry, materials science, and geology applications.
The instrument resolution is ~30 nm with a ~30 micron field-of-view, depending on the photon energy. The energy range is ~5 to 13 keV, suitable for spectroscopic imaging of many transition metals in energy materials, and also for absorption contrast imaging of other materials. Elemental mapping is accomplished via acquisition of images above and below the X-ray absorption edge. Mapping of chemical states is accomplished with XANES (X-ray absorption near edge structure) imaging. Absorption contrast, elemental mapping, and chemical state mapping are possible in 2D and 3D imaging modes. Larger sample areas can be imaged in mosaic imaging mode, stitching together multiple fields-of-view.
