MODELING AND IMPROVEMENT OF RADIO FREQUENCY MASS SPECTROMETERS FOR THE ANALYSIS OF THE COMPOSITION OF MINERALS AND THE ENVIRONMENT
Tuyakovich I.A. Diana A.
2023National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2023#2023Issue 484 - 96 pp.
Analytical instruments and devices are widely used to solve a wide range of technological and managerial tasks in various fields of industry and society. For example, in geology, in the oil and gas, mining, metallurgical and chemical sectors of the economy, in environmental pollution control systems, as well as in many other areas of industry and the production of goods, there is a constant need to analyze the chemical composition of substances, minerals and gas mixtures. Currently, gas analyzers and chromatographs are often used to analyze the composition of binary and multicomponent gas mixtures. The advantages of these devices are simplicity and low cost. The main disadvantages of gas analyzers and chromatographs are: the duration of the analysis time, the small number of components analyzed by one device, low reliability and relatively short service life. These devices are practically not suitable for qualitative analysis of multicomponent minerals. Therefore, mass spectrometers are used for effective and qualitative analysis of the composition of various minerals and gas mixtures. Currently, there are various types of mass spectrometers whose operating principles are based on the focusing properties of magnetic and electric fields. At first, magnetic mass spectrometers were invented for a detailed analysis of the composition of substances, which were not widely used due to their high cost and bulkiness. Later, several types of less bulky mass spectrometers were invented, which do not use a magnetic field. These include time-of-flight and radio frequency (high frequency) mass spectrometers. The disadvantages of time-of-flight mass spectrometers are their rather large dimensions and insufficiently high resolution, and high-frequency mass spectrometers have relatively low sensitivity. The disadvantages of a highfrequency mass spectrometer are associated with the presence of grid electrodes, which significantly impair its sensitivity and resolution. Therefore, in this article, in order to solve theoretical problems of improving radio frequency mass spectrometers, a method for modeling and analyzing the movements of charged particles in fields with a high-frequency component of the field in emission systems without grid electrodes is considered. The method proposed in the article for studying the focusing properties of charged particle sources with a high-frequency component of the field makes it possible to provide the necessary conditions for eliminating grid electrodes when designing specific radio frequency mass spectrometers with improved technical characteristics. Copyright
emission system , highfrequency potential , mass spectrometer , mineral composition , property , sensitivity
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Kazakhstan University of Innovative and Telecommunication Systems, Uralsk, Uzbekistan
Kazakhstan Academy of Information and Business, Almaty, Kazakhstan
Kazakh National University named by Al-Farabi, Almaty, Kazakhstan
Kazakhstan University of Innovative and Telecommunication Systems
Kazakhstan Academy of Information and Business
Kazakh National University named by Al-Farabi
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