3-d chemical imaging using angle-scan nanotomography in a soft X-ray scanning transmission X-ray microscope
- First Online:
- 114 Downloads
Three-dimensional chemical mapping using angle scan nanotomography in a soft X-ray scanning transmission X-ray microscope (STXM) has been used to investigate the spatial distributions of a low density polyacrylate polyelectrolyte ionomer inside submicron sized polystyrene microspheres. Acquisition of tomograms at multiple photon energies provides true, quantifiable 3-d chemical sensitivity. Both pre-O 1s and C 1s results are shown. The study reveals aspects of the 3-d distribution of the polyelectrolyte that were inferred indirectly or had not been known prior to this study. The potential and challenges for extension of the technique to studies of other polymeric and to biological systems is discussed.
PACS68.37.Yz 81.70.Tx 82.35.Lr
Unable to display preview. Download preview PDF.
- 2.G.A. Johansson, J.J. Dynes, A.P. Hitchcock, T. Tyliszczak, G.D.W. Swerhone, J.R. Lawrence, Proc. SPIE 6318, 6318–1I 2006) Google Scholar
- 7.J. Stöhr, NEXAFS Spectroscopy. Springer Tracts in Surface Science, vol. 25 (Springer, Berlin, 1992) Google Scholar
- 11.E. Beach, M. Keefe, W. Heeschen, D. Rothe, Polymer 46, 11195–11197 (2005) Google Scholar