6533b82ffe1ef96bd1295a9c

RESEARCH PRODUCT

Control of electron-cyclotron instability driven by strong ECRH in open magnetic trap

Olli TarvainenE. D. GospodchikovIvan IzotovVadim SkalygaDmitry MansfeldA. G. Shalashov

subject

PhysicsCyclotronGeneral Physics and AstronomyElectronPlasmaKinetic energy01 natural sciencesElectromagnetic radiationInstability010305 fluids & plasmaslaw.inventionPhysics::Plasma PhysicslawMagnetic trapPhysics::Space Physics0103 physical sciencesMaserAtomic physics010306 general physics

description

We discuss the laboratory experiment on a controlled transition from the generation of periodic bursts of electromagnetic radiation into the continuous-wave regime of a cyclotron maser formed in a magnetically confined non-equilibrium plasma (Shalashov A. G. et al. , Phys. Rev. Lett. , 114 (2018) 205001). The kinetic cyclotron instability of the extraordinary wave of a weakly inhomogeneous magnetized plasma is driven by the anisotropic electron population resulting from electron cyclotron plasma heating in a MHD-stable minimum-B open magnetic trap. In the present communication we focus on a theoretical model that explains the existing data and motivates further experiments.

https://doi.org/10.1209/0295-5075/124/35001