| Autor: |
Louksha Oleg, Trofimov Pavel, Malkin Alexander |
| Jazyk: |
English<br />Russian |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
St. Petersburg Polytechnical University Journal: Physics and Mathematics, Vol 16, Iss 4 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2405-7223 |
| DOI: |
10.18721/JPM.16410 |
| Popis: |
This study presents the results of a complex physical modeling of a moderate power gyrotron operating at the 4-mm wavelength range. The characteristics of electrodes and magnetic coils in a four-stage recovery collector were optimized taking into account the coordinate and velocity distributions of electrons. These distributions were obtained through a trajectory analysis in the electron optical system and calculation of electron-wave interaction in the gyrotron cavity. To reduce parasitic effects of the bundles of a toroidal solenoid used to create an azimuthal magnetic field in the collector region, a sectioned electron beam was employed. The study demonstrated that the gyrotron's total efficiency of approximately 79 % could be achieved, being close to the maximum efficiency value achievable with separation of electron fractions with different energies, provided that the current of electrons reflected from a collector should not exceed 1% of the total current of an electron beam. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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