| Autor: |
Kiziridi, P. P., Ozur, G. E. |
| Zdroj: |
Bulletin of the Russian Academy of Sciences: Physics; Apr2024, Vol. 88 Issue 4, p623-630, 8p |
| Abstrakt: |
A brief review and several new results on non-relativistic, high-current electron beams production in the guns based on the cathode unit with built-in resistively decoupled plasma sources based on vacuum arc triggered by dielectric surface flashover are presented. The production both planar-axial and radially converging wide-area, high-current electron beams has been demonstrated. It was shown that the sources of high-current electron beams based on such guns have several advantages in comparison with traditional sources with explosive-emission cathode and plasma anode: increased average current density, improved stability of the beam parameters and some others. The operation of the sources in the mode of vacuum, gas-filled and plasma filled diode has been investigated. It was founded that beam pulse energy is very sensitive to the working gas pressure and it decreases at some critical value because of beam-plasma discharge in the diode. For the case of radially converging beams, a method of the beam pulse energy increasing with the use of electrostatic screens limiting an outflow of charged particle and UV radiation towards surrounding space was proposed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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