Mechanism of High-Efficiency Electron Beam Generation in a High-Voltage Discharge in Helium and Its Mixtures with Oxygen and Nitrogen
| Autor: | P. P. Gugin, P. A. Bokhan, D. E. Zakrevsky, M. A. Lavrukhin |
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| Rok vydání: | 2020 |
| Předmět: |
inorganic chemicals
010302 applied physics Materials science genetic structures 010308 nuclear & particles physics Analytical chemistry General Physics and Astronomy chemistry.chemical_element Pure oxygen respiratory system Kinetic energy 01 natural sciences Nitrogen Oxygen respiratory tract diseases chemistry 0103 physical sciences Physics::Atomic and Molecular Clusters Cathode ray Physics::Atomic Physics Physics::Chemical Physics Helium circulatory and respiratory physiology Voltage |
| Zdroj: | Russian Physics Journal. 62:1989-1992 |
| ISSN: | 1573-9228 1064-8887 |
| DOI: | 10.1007/s11182-020-01933-8 |
| Popis: | The results of investigation of the current-voltage characteristics (CVCs) and electron beam generation efficiency in continuous discharges in helium, its mixtures with oxygen and nitrogen, as well as in pure oxygen and helium are presented. Peculiarities of CVCs are singled out and interpreted in terms of a changed role of the principal emission mechanisms with an increase in the voltage. It is shown that a high efficiency of the electron beam generation of more than 80% can be achieved in glow discharges in helium, oxygen, and nitrogen. In helium, it is provided by the predominating photoemission, while in oxygen and nitrogen and their mixtures with helium – mainly by the kinetic emission under the impact of fast heavy particles. |
| Databáze: | OpenAIRE |
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