Polycapillary Optics Based Confocal Micro X-ray Fluorescence and X-ray Absorption Spectroscopy Setup at The European Synchrotron Radiation Facility Collaborative Research Group Dutch–Belgian Beamline, BM26A

Stephen Bauters, Pieter Tack, Jennifer Rudloff-Grund, Dipanjan Banerjee, Allessandro Longo, Roelof Van Silfhout, Laszlo Vincze

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    Abstract

    A novel plug-and-play setup based on polycapillary X-ray optics enables three-dimensional (3D) confocal X-ray fluorescence (XRF) and X-ray absorption spectroscopy down to 8 × 8 × 11 μm3 (17 keV) at the European Synchrotron Radiation Facility Collaborative Research Group Dutch–Belgian Beamline, BM26A. A complete description and analytical characterization is presented, together with two recently performed experimental cases. In Deep Earth diamond São Luiz-Frankfurt am Main 16, an olivine-rich inclusion was mapped with full 3D XRF elemental imaging. The preliminary tests on Iron Gall ink contained in an historical document, a letter from the court of King Philip II of Spain, reveal both the delicate nature of Iron Gall ink and the lack of Fe–Ni chemical bonding.
    Original languageEnglish
    Pages (from-to)2389-2394
    Number of pages6
    JournalAnalytical Chemistry
    Volume90
    Issue number3
    Early online date10 Jan 2018
    DOIs
    Publication statusPublished - 6 Feb 2018

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