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Portable x‐ray fluorescence spectrometer with a pyroelectric x‐ray generator
Author(s) -
Ida Hiroyuki,
Kawai Jun
Publication year - 2005
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.800
Subject(s) - spectrometer , detector , materials science , x ray fluorescence , generator (circuit theory) , x ray , optics , foil method , fluorescence , aluminium , detection limit , x ray detector , analytical chemistry (journal) , physics , chemistry , metallurgy , composite material , power (physics) , chromatography , quantum mechanics
A portable x‐ray fluorescence spectrometer was assembled with an x‐ray generator that was driven by a 9 V dry electric battery. Several possible optimum geometries of the x‐ray generator and detector were evaluated, and the results showed that the intensity of fluorescent x‐rays was strong enough when the angle between the x‐ray generator and detector was as small as 30°. The geometrically optimized x‐ray spectrometer was applied to the analysis of paints, plastics and aluminum foils. Pigments in paint and toxic elements in plastic could be easily detected with on‐site analysis. Fe in aluminum foil was quantitatively determined down to the sub‐% level. The detection limit of Fe was 180 ppm for 100 s of measurement. Copyright © 2005 John Wiley & Sons, Ltd.