title: Three-dimensional chemical mapping with a confocal XRF setup.
abstract: A new approach for the nondestructive reconstruction of stratified systems with constant elemental composition but with varying chemical compounds has been developed. The procedure is based on depth scans with a confocal X-ray fluorescence setup at certain energies near absorption edges. These so-called marker energies, where XAFS signals of the involved chemical compounds differ significantly, can also be used to uncover the chemical composition and its topology. A prominent field of application is homogeneous material that is degraded due to chemical reactions like oxidation or reduction. A procedure for the semiquantitative reconstruction of stratified material by means of depth scans at marker energies is elaborated and validated and a three-dimensional mapping is presented.
authors: Technische Universität Berlin, Berlin, Germany. Lars.Luehl@physik.tu-berlin.de
authors: Lars
authors: L
authors: Lühl
authors: Ioanna
authors: I
authors: Mantouvalou
authors: Ina
authors: I
authors: Schaumann
authors: Carla
authors: C
authors: Vogt
authors: Birgit
authors: B
authors: Kanngießer