title: Three-dimensional chemical mapping by scanning transmission X-ray spectromicroscopy.
abstract: Three-dimensional (3-d) chemical mapping using angle-scan tomography in a scanning transmission X-ray microscope is demonstrated. Apparatus, experimental procedures and data processing are presented and the 3-d spatial resolution is evaluated. The technique is illustrated using mapping of a low-density acrylate polyelectrolyte in and outside of polystyrene microspheres dispersed in water in a 4 microm-diameter microcapillary. The 3-d chemical visualization provides information about the microstructure that had not previously been observed.
authors: Department of Chemistry and BIMR, McMaster University, Hamilton, Canada L8S 4M1. gajonsson@lbl.gov
authors: Göran A
authors: GA
authors: Johansson
authors: Tolek
authors: T
authors: Tyliszczak
authors: Gary E
authors: GE
authors: Mitchell
authors: Melinda H
authors: MH
authors: Keefe
authors: Adam P
authors: AP
authors: Hitchcock