Influence of Polarization of Exciting X-Radiation on Sensitivity of Energy Dispersive X-Ray Fluorescence Trace Analysis at Rocks and Soils
作者:
M. Brumme,
J. Heckel,
K. Irmer,
期刊:
Isotopenpraxis Isotopes in Environmental and Health Studies
(Taylor Available online 1990)
卷期:
Volume 26,
issue 7
页码: 341-342
ISSN:0021-1915
年代: 1990
DOI:10.1080/10256019008624324
出版商: Taylor & Francis Group
关键词: X-ray fluorescence analysis;trace analysis;X-ray spectra;polarization;geology;soils;sensitivity
数据来源: Taylor
摘要:
The application of polarized X-rays in energy dispersive X-ray fluorescence analysis (EDXRF) is prooved to be one method for improvement the sensitivity of trace analysis at rock- and soil-samples. The use of a high power X-ray tube in connection with an amorphous Barkla-scattering target for polarization makes possible the increase of peak-to-background ratios in a wide energy range (5 keV < E < 40 keV) in comparison to direct excitation. The influence of the polarization on the peak-to-background ratios at trace analysis at geological samples will be shown.
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