Registration Number
0123U101803,
(
0224U001123
0225U002236
0226U002854
)
R & D request
Title
Transport processes and kinetics of low-temperature and fusion plasmas
Head
Denysenko Ihor B., Доктор фізико-математичних наук
Registration Date
23-03-2023
Organization
V.N. Karazin Kharkiv National University
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The aim of this project is to develop a theory and a methodology for description of transport processes in low-temperature and fusion plasmas using kinetic approaches. To achieve this aim, it is planned to solve the following tasks: to develop an arc discharge model for the convective mode of evaporation of a metal anode; to study how the speed of vapor expansion in the near-anode layer depends on the temperature of anode and the current flowing through the discharge, as well as to investigate the properties of the arc discharge under these conditions; to describe the processes in the near-anode layer using phenomenological approaches, as well as using the Boltzmann kinetic equation; to develop theoretical and numerical models describing motion of nanoparticles in an afterglow plasma with taking into account that the charging of nanoparticles is a stochastic process, and using these models to investigate how the motion and deposition of nanoparticles on surfaces depend on external conditions; to study the conditions of formation of low-energy ion beams with a high current density in the plasma created by a source based on an arc discharge with a thermocathode; to determine the conditions for the formation of a double layer of volume charge around the plasma created in the vapors of the anode material; to investigate the conditions for the formation of H– ions near the metal hydride cathode and to develop methods for their effective extraction; to obtain the dispersion characteristics of low-frequency waves in 2D tokamaks taking into account the toroidal magnetic drift of both untrapped and trapped plasma particles, their finite Larmor radius and the finite width of their banana trajectories. A revision of the Braginsky standard transport model is planned to include the electron relativity and to find relativistic corrections to the transport coefficients. A relativistic generalization of the neoclassical transport theory for toroidal systems is also planned.
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2024-12-09
