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A. S. Smirnov

Publications and source records attributed to A. S. Smirnov.

4 recordsLinked to original sources
arXiv2019

Development of Internet of Things, Augmented Reality and 5G technologies (review)

Just as the emergence of personal computers and smartphones has changed the life of modern society, the Internet of Things, augmented reality and ultra-fast and reliable telecommunications networks of the new generation, by combining the physical objects of the real world with the ever-increasing computing power and intelligence of cyberspace, will make the next big revolution in all spheres of human activity. Keywords: Internet of Things, 5G, augmented reality.

cs.CY↗
arXiv2013

Secondary electron emission yield in the limit of low electron energy

Secondary electron emission (SEE) from solids plays an important role in many areas of science and technology.1 In recent years, there has been renewed interest in the experimental and theoretical studies of SEE. A recent study proposed that the reflectivity of very low energy electrons from solid surface approaches unity in the limit of zero electron energy2,3,4, If this was indeed the case, this effect would have profound implications on the formation of electron clouds in particle accelerators,2-4 plasma measurements with electrostatic Langmuir probes, and operation of Hall plasma thrusters for spacecraft propulsion5,6. It appears that, the proposed high electron reflectivity at low electron energies contradicts to numerous previous experimental studies of the secondary electron emission7. The goal of this note is to discuss possible causes of these contradictions.

physics.acc-ph↗
arXiv2010

Theoretical and experimental study of ion flux formation in an asymmetric high-frequency capacitive discharge

Parameters of a high frequency capacitive discharge in argon in axially symmetric chambers of different geometries are studied in experiments and by means of two-dimensional kinetic modeling by the Particle-in-Cell method. It is demonstrated that a change in the ratio of the areas of the driven and grounded electrodes can substantially increase the ion energy on the electrode practically without disturbing the plasma parameters. Particular attention is paid to studying the self-bias voltage and the ion distribution function on the electrode for gas pressures ranging from 15 to 70 mTorr. The results of self-consistent calculations are in good agreement with experimental data.

physics.plasm-ph↗