19 November 1998 X-ray fluorescence analysis based on Kumakhov optics
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Abstract
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 10-16 g if 100 W microfocus source and the lens with approximately 10 micrometers focal spot are used.
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Svetlana V. Nikitina, Svetlana V. Nikitina, Nariman S. Ibraimov, Nariman S. Ibraimov, Alexander S. Stcherbakov, Alexander S. Stcherbakov, } "X-ray fluorescence analysis based on Kumakhov optics", Proc. SPIE 3444, X-Ray Optics, Instruments, and Missions, (19 November 1998); doi: 10.1117/12.331260; https://doi.org/10.1117/12.331260
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