X-ray fluorescence analysis based on Kumakhov optics

Details X-ray fluorescence analysis based on Kumakhov optics X-ray fluorescence analysis based on Kumakhov optics

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3444..451n&link_type=abstract

Proc. SPIE Vol. 3444, p. 451-459, X-Ray Optics, Instruments, and Missions, Richard B. Hoover; Arthur B. Walker; Eds.

Physics

Optics

Scientific paper

The use of Kumakhov optics in x-ray fluorescence analysis is considered. Thanks to high efficiency of a polycapillary lens the concentration of x-ray detector in a close proximity to the sample decreases sufficiently the time of exposure. It is shown experimentally that in the case of use of a small x-ray source with power of 2W the minimal detection limit may be of the order of 0.1 pg. A new portable x-ray fluorescence analyzer based on Kumakhov optics is described. Minimal detection limit may achieve 10(superscript -16) g if 100 W microfocus source and the lens with approximately 10 micrometers focal spot are used.

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