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

HATAKEYAMA So, KUNIMURA Shinsuke, SASAKI Nobuharu, YAMAMOTO Takashi, KAWAI Jun

doi:10.2116/analsci.24.847

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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抄録

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.