The work is devoted to the development, fabrication and analysis of broadband W / Si multilayer mirrors for a broadband monochromator, calculated for the spectral range of 7-10 keV. The possibility of using the stacking approach to obtain multilayer mirrors with a reflection coefficient of about 30% and a spectral bandwidth Delta E/E of about 20% is shown. The results of measurements of the angular and spectral reflection curves of the mirror obtained on a laboratory diffractometer and on a synchrotron in Novosibirsk are presented. Keywords: hard X-ray range, monochromator, synchrotron radiation, broadband mirrors, stack structures, multilayer X-ray mirrors.
The method of X-ray fluorescence analysis involving synchrotron radiation (SR XRAF) is used to determine the element composition of soil and plants Hemerocallis hybrida hort., growing in the places of different pollution level in the Novosibirsk Oblast. It has been established that the main element pollutants of a technogenic environment, accumulated in excess concentrations in plant leaves and rhizomes are lead, nickel, iron, titanium, and chromium. The SR XRF method provides the reliable data on the content of 20 micro- and macroelements of the plants Hemerocallis hybrida, in the various industrial and transport conditions of pollution.
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