Experimental study of coupling of low-frequency electromagnetic waves with plasma in strong magnetic field

Polosatkin, S. V.; Batkin, V. I.; Burdakov, A. V.; Burmasov, V. S.; Иванов, И. А.; Kalinin, P. V.; Kotelnikov, I. A.; Mekler, K. I.; Minaylo, M.; Murasev, A.; Поступаев, В. В.; Sidorov, E. N.; Sorokina, Natalia

doi:10.1063/1.4964183

Cited by 1 publication

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“…The results of laboratory experiment on the GOL-3 facility showed the possibility of emitting electromagnetic waves of the terahertz ranges in the beam-plasma interaction, as well as an increase of its efficiency when the transverse dimensions of the system and the length of the generated waves is comparable [1,2]. Existing theoretical estimates, based on the linear approximation, show the possibility of substantially increase of the radiation power by setting a preliminary modulation of the plasma density [3].…”

Section: Introductionmentioning

confidence: 99%

PIC-simulation of the electron beam interaction with modulated density plasma

Berendeev

Dudnikova

Efimova

2017

AIP Conference Proceedings

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Abstract. In this paper, the processes of electromagnetic radiation generation as a result of the interaction of a relativistic electron beam with hydrogen and argon plasma are studied on the basis of numerical modeling by the particle-in-cells method (PIC). Series of numerical experiments for different background plasma parameters, beam and magnetic field have been performed using modern computer systems with massively parallel architecture. Estimates of the radiation efficiency for both the initially homogeneous plasma and for longitudinal density modulation are obtained. It is shown that the change in the plasma density due to the development of the modulation instability makes it possible to increase substantially the power of the generated sub-THz radiation. The parameters used in numerical experiments correspond to the conditions of laboratory experiments on GOL-3 facility (BINP SB RAS, Novosibirsk, Russia).

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Section: Introductionmentioning

confidence: 99%