PROTECTIVE POLYMER FILMS IN X-RAY FLUORESCENCE ANALYSIS
https://doi.org/10.26896/1028-6861-2017-83-11-29-34
Abstract
Some aspects of using protective polymer films in practice of x-ray fluorescence are considered. Data of practice guidelines regulating the measurement procedure in part of the requirements for x-ray films, are summarized. Data of practice guidelines regulating the measurement procedure in part of the requirements regarding x-ray films, are summarized. A review and comparison of the physical and chemical properties of films presented on the Russian market are analyzed. The influence of the polymer type on the absorption of secondary fluorescence intensity is shown for the Ká lines of Al, Si, and Ti. The analysis of the dependence of fluorescence intensity on the atomic number of the radiating element is considered for different polymer types. Chlorine- and sulfur-containing films can be used as filters of secondary fluorescence. Regulatory requirements for different thicknesses of films and actually different thicknesses are specified for a polypropylene film. Decreases and fluctuations of the fluorescence intensity of the analytical lines of light elements are calculated as a function of the unevenness of physical and chemical properties of the films thus used. The influence of impurities present in the polymer material on the intensity of the analytical lines of these elements is estimated. Important from a practical point of view performance characteristics of the films are analyzed. Recommendations regarding the types of polymers are specified depending on the analytical tasks being solved.
About the Authors
N. Ya. Varkentin
АО Чепецкий механический завод, г. Глазов
Russian Federation
Russian Federation
O. A. Karavaeva
АО Чепецкий механический завод, г. Глазов
Russian Federation
Russian Federation
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Review
For citations:
Varkentin N.Ya., Karavaeva O.A. PROTECTIVE POLYMER FILMS IN X-RAY FLUORESCENCE ANALYSIS. Industrial laboratory. Diagnostics of materials. 2017;83(11):29-34. (In Russ.) https://doi.org/10.26896/1028-6861-2017-83-11-29-34
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