Plasma Oscillations at Cathode Spot Region of Vacuum Arc

Autor:	A. V. Ushakov, I. V. Karpov, E. A. Goncharova, A. A. Shaikhadinov, L. Yu. Fedorov, M. V. Brungardt
Rok vydání:	2021
Předmět:	Materials science Physics::Plasma Physics Ionization Multiphysics General Engineering General Materials Science Plasma Vacuum arc Electron Atomic physics Diffusion (business) Plasma oscillation Finite element method
Zdroj:	Inorganic Materials: Applied Research. 12:204-207
ISSN:	2075-115X 2075-1133
Popis:	The model of ionization processes in high-temperature plasma of the near-cathode region of vacuum arc is given. The model is mathematically represented as a system of second-order nonlinear differential equations of drift diffusion for the electron density and mean energy of electrons. The solution of the presented system of equations was derived using the finite element method according to two coordinates in numerical form using the COMSOL Multiphysics program. It is shown that Langmuir waves, which result in a multiple-step ionization of metallic vapor, are generated in plasma owing to nonstationary processes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ff5d58a5add35adb27e3a41998b4cc75 https://doi.org/10.1134/s207511332101041x Zobrazit plný text záznamu Full text from SpringerLink