| Инд. авторы: | Berendeev E.A., Dudnikova G.I., Efimova A.A., Vshivkov V.A. |
| Заглавие: | Generation of terahertz radiation by electron beam-plasma interaction |
| Библ. ссылка: | Berendeev E.A., Dudnikova G.I., Efimova A.A., Vshivkov V.A. Generation of terahertz radiation by electron beam-plasma interaction // 2018 20th International Symposium on High-Current Electronics (ISHCE). - 2018. - Art.8521220. |
| Внешние системы: | DOI: 10.1109/ISHCE.2018.8521220; РИНЦ: 38655738; SCOPUS: 2-s2.0-85058109674; |
| Реферат: | eng: At present, the search for new methods of generation electromagnetic radiation in the terahertz frequency range (THz) has emerged as one of the most promising rapidly developing areas of research in science and engineering, including security and medical diagnostics. One of the modern solutions of the problem is the generation of electromagnetic (EM) waves due to the interaction of high-current relativistic electron beams with plasma. Since in this case the radiation frequency is comparable with the plasma frequency, it can be easily adjusted by simply changing the plasma density. The efficient terahertz electromagnetic emission was produced during the injection of relativistic electron beams into plasma in laboratory experiments at the GOL-3 facility INP SB RAS. In this paper the mechanisms of the high efficiency of energy transfer from the relativistic electron beam to the EM radiation in turbulent regime of collisionless plasma are investigated on the base of computer simulation. The kinetic approach for ion and electron plasma components, as well as for electron beam, was used in 2D numerical model with the real mass ratio of charged particles. A parallel electromagnetic particle-in-cell (PIC) code UMKA2D3V was applied to simulate beam-plasma system for parameters close to the parameters of laboratory experiments at GOL-3 facility. Regimes of injection of one electron beam into the plasma and the counter injection of electron beams were considered. Computational experiments were performed using modern computer systems with massively parallel architecture. © 2018 IEEE. |
| Ключевые слова: | PIC-method; plasma physics; terahertz radiation; Collisionless plasmas; Diagnosis; Electromagnetic wave emission; Electromagnetic waves; Electron beams; Electrons; Energy transfer; Network security; Parallel architectures; Plasma density; Plasma diagnostics; Terahertz waves; Computational experiment; Electromagnetic emissions; In-laboratory experiments; PIC method; Plasma physics; Beam plasma interactions; Terahertz radiation; Terahertz frequency range; electron beam-plasma interaction; Relativistic electron beam; |
| Издано: | 2018 |
| Физ. характеристика: | 8521220, с.39-42 |
| Конференция: | Название: 20th International Symposium on High-Current Electronics Аббревиатура: ISHCE-2018 Город: Tomsk Страна: Russia Даты проведения: 2018-09-16 - 2018-09-22 |