Spatially Resolved X-ray Fluorescence Analysis with a Pyroelectric X-ray Emitter

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  • HATAKEYAMA So
    Department of Materials Science and Engineering, Kyoto University
  • KUNIMURA Shinsuke
    Department of Materials Science and Engineering, Kyoto University
  • SASAKI Nobuharu
    Department of Materials Science and Engineering, Kyoto University
  • YAMAMOTO Takashi
    Department of Materials Science and Engineering, Kyoto University
  • KAWAI Jun
    Department of Materials Science and Engineering, Kyoto University

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Abstract

A portable instrument for two-dimensional X-ray fluorescence imaging was assembled with an X-ray source using a pyroelectric crystal, which was driven by a 9-V dry battery, a Si-PIN detector, a slit, and pulse motors. Line scanning for a mug and a knife-edge-scan of an iron sheet were carried out using this spectrometer. The sensitivity of the spectrometer was sufficient for elemental analysis of a mug using a 1 mm2 slit, and several elements, such as Co, Ni, Zn, Pb and Zr, were detected. The estimated spatial resolution using a 0.8-mm pinhole was 3.5 mm.

Journal

  • Analytical Sciences

    Analytical Sciences 24 (7), 847-850, 2008

    The Japan Society for Analytical Chemistry

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