Operative quality control of the ferrous metal ore using gamma radiation

A. Azaryan V. Azaryan V. Morkun А. Gritsenko А. Trachuk
Received 03.01.2022, Revised 14.03.2022, Accepted 26.04.2022
Abstract

Purpose. To improve the accuracy of determining the content of useful component in ferrous ores of gamma-gamma method, it is necessary to develop a mathematical model of gamma-ray interaction with samples of ferrous metals and geometric parameters of the measurement zone (dimensions of the collimation hole, also the distance to the surface of the test sample) and the content of adjacent components that are part of the ores. Research methods. To achieve this goal, a comprehensive research method is used, which includes theoretical and instrumental methods: analysis of domestic and foreign sources, planning experiments, mathematical processing of results, analysis of ore material composition, theoretical generalizations using the theory of gamma radiation interaction with rocks, methods mathematical, simulation and computer modeling, experimental research in the laboratory. Scientific novelty. As a result of research, the method of mathematical modeling of theoretical determination of the magnitude of gamma radiation intensity as a function depending on the geometric parameters of the measurement zone and the material composition of the studied sample was further developed. The mass attenuation coefficients for different contents of the useful component are determined. Practical significance. It is expedient to use the received analytical expressions at designing of means of operative definition of the maintenance of useful components for definition of the optimum sizes of a zone of measurement. Results. Based on the laws of interaction of gamma radiation with rocks, a mathematical model of calculating the magnitude of the flux of scattered gamma radiation, which allows to take into account the characteristics of the measurement area. The adequacy of the obtained model is proved by a satisfactory coincidence of the experimental data with the calculated ones

Keywords:
mathematical model; radiation intensity; central geometry; radiation interaction; iron content; attenuation coefficients; incoherent radiation; chromium ores

Retrieved from Vol. 56, No. 1, 2022

Pages 13–22

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Azaryan, A., Azaryan, V., Morkun, V., Gritsenko, А., & Trachuk, А. (2022). Operative quality control of the ferrous metal ore using gamma radiation. Mining Journal of Kryvyi Rih National University, 56(1), 13-22. https://doi.org/10.31721/2306-5435-2022-1-110-13-22
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