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Studies were made the possibilities of increasing the wave-dispersive X-ray
fluorescence spectrometer analytical characteristics due to using the superfine beryllium foils 5-8
µm thick in the X-ray detector. Investigations by the example of spectrometer SPECTROSCAN
MAX-GVM showed that the decrease of foil thickness can significantly increase the
spectrometer analytical characteristics in the determination of light elements (sodium and
magnesium). It has been established what count rate increases 8.5 times for sodium and 4.6 times
for magnesium due to using the X-ray windows with thickness of 5 and 8 .m. Reducing of X-ray
window thickness can be achieved by using beryllium foils obtained by severe cold plastic
deformation. Such foils have increased plasticity, which allows reducing the X-ray window
thickness without spectrometer reliability decreasing.
Keywords: x-ray spectroscopy analysis; spectrometer; x-ray detector; thin beryllium foils; x-rays transmission. |
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