Effect of plasma density gradients on generation of terahertz radiation in magnetized plasma column during relaxation of kiloampere REB inside it

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Abstract

Generation of terahertz radiation in the magnetized plasma column due to the two-stream instability developing in the relativistic electron beam (REB) with a current of 10 kA is studied at the GOL-PET facility. In the first series of the experiments, at the regular transverse plasma density gradients, power of the generated terahertz radiation increased thirty times. At a frequency of the upper-hybrid oscillations (0.2-0.3 THz) and pulse duration of few microseconds, it reached 4 MWs. In the next experiments, when the additional longitudinal density gradients were created in plasma, the radiation power exceeded 10 MWs. These results are described in this paper.

Original languageEnglish
Article number012010
JournalJournal of Physics: Conference Series
Volume1647
Issue number1
DOIs
Publication statusPublished - 12 Oct 2020
Event47th Zvenigorod International Conference on Plasma Physics and Controlled Fusion, ICPAF 2020 - Zvenigorod, Moscow Region, Russian Federation
Duration: 16 Mar 202020 Mar 2020

OECD FOS+WOS

  • 1.03.UF PHYSICS, FLUIDS & PLASMAS

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