title: Spectral processing for parallel recording of elemental maps.
abstract: Seven different one-, two-, or three-parameter analytic expressions were tested for their applicability to electron energy-loss spectral processing for mapping of atomic distributions in images of magnesium oxide crystals. Two-point two-parameter fits all provided indistinguishable results. Fine structure in the spectrum produced major quantitative inconsistencies for any given expression. This effect was exacerbated with the use of three-parameter expressions. Mass-thickness effects on the oxygen map of Mg0 were inconsequential up to a crystal thickness of 30 nm, but became dominant and unacceptable at a 50% increase in thickness above this. This observation can be explained by a specific single inelastic scatter coupled with any number of elastic scattering events.
authors.affiliation: Department of Medical Biophysics, University of Toronto, Ontario, Canada.
authors.forename: F Y
authors.initials: FY
authors.lastname: Ottensmeyer
authors.forename: B W
authors.initials: BW
authors.lastname: Frankland
mesh_terms: D003460:Crystallization; D004577:Electron Probe Microanalysis / Q000379:methods*; D004602:Elements; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008277:Magnesium Oxide
chemical_list: D004602:Elements; D008277:Magnesium Oxide