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Updated: Jul 6, 2026

Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples
Published on: June 19, 2018
Improved analyzer multilayers for aluminium and boron detection with x-ray fluorescence
P Ricardo1, J Wiesmann, C Nowak
1Institute of Materials Research, GKSS Research Centre, 21502 Geesthacht, Germany. paulo.ricardo@gkss.de
Abstract:
We have developed improved analyzer multilayers for the detection of aluminium (Al) and boron (B) on silicon (Si) wafers with wavelength-dispersive x-ray fluorescence spectrometers. For the detection of Al on Si wafers we show that WSi(2)/Si and Ta/Si multilayers provide detection limits that are 42% and 60% better, respectively, than with currently used W/Si multilayers. For the detection of B on Si wafers we show that La/B(4)C multilayers improve the detection limit by approximately 28% compared with a conventionally used Mo/B(4)C multilayer.
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