Influence of Inhomogeneity on Transformation and Radiation Processes in Plasma with Upper Hybrid Pump

Authors

  • V. G. Panchenko Institute for Nuclear Research, Nat. Acad. of Sci. of Ukraine
  • P. V. Porytsky Institute for Nuclear Research, Nat. Acad. of Sci. of Ukraine

DOI:

https://doi.org/10.15407/ujpe64.9.814

Keywords:

kinetic theory of fluctuations, turbulent plasma, upper hybrid pump, transformation, plasma radiation

Abstract

On the basis of the kinetic theory of fluctuations, the processes of the longitudinal Langmuir wave transformation into a transverse electromagnetic wave in the turbulent inhomogeneous plasma have been studied. The plasma turbulence is assumed to arise owing to the parametric decay of the upper hybrid pump wave into a daughter wave and electron-drift oscillations. The transformation coefficient under the parametric instability saturation conditions is determined. The intensity of the electromagnetic radiation emission from the plasma is calculated, and its dependence on the plasma and pump wave parameters is found.

References

Q. Chen, Z. Wu, L. Johnson, D. Gordon, P. Sprangle, S. Suckewer. Pulse splitting of stimulated Raman backscattering with a chirped pump. Phys. Plasmas 24, 052115 (2017). https://doi.org/10.1063/1.5009553

E.Z. Gusakov, A.Yu. Popov, P.V. Tretinnikov. Kinetic theory of electrostatic waves nonlinear coupling in the magnetized plasma in presence of extraordinary pump wave. Plasma Phys. Control. Fusion 61, 085008 (2019). https://doi.org/10.1088/1361-6587/ab2180

Y. Oda, R. Ikeda, K. Kajiwara, T. Kobayashi, K. Hayashi, K. Takahashi, S. Moriyama, K. Sakamoto, T. Eguchi, Y. Kawakami et al.. Development of the first ITER gyrotron in QST. Nucl. Fusion 59, 086014 (2019). https://doi.org/10.1088/1741-4326/ab22c2

E.Z. Gusakov, A.Yu. Popov. Saturation of the low-threshold parametric decay of the O-mode pump in the fundamental harmonic ECRH experiment. Phys. Plasmas 25, 082117 (2018). https://doi.org/10.1063/1.5039745

F. Sayed, S.V. Vladimirov, Yu. Tyshetskiy, O. Ishihara. Modulational and filamentational instabilities of a monochromatic Langmuir pump wave in quantum plasmas. Phys. Plasmas 25, 052115 (2015). https://doi.org/10.1063/1.4921135

A.I. Akhiezer, I.G. Prohoda, A.G. Sitenko. Scattering of electromagnetic waves in a plasma. J. Exper. Theor. Phys. 6, 576 (1958).

J.P. Dougherty, D.T. Farley. A theory of incoherent scattering of radio waves by a plasma. Proc. Roy. Soc. A 259, 79 (1961). https://doi.org/10.1098/rspa.1960.0212

M.N. Rosenbluth, N. Rostoker. Scattering of electromagnetic waves by a nonequilibrium plasma. Phys. Fluids 5, 776 (1962). https://doi.org/10.1063/1.1724446

E.E. Salpeter. Electron density fluctuations in a plasma. Phys. Rev. 120, 1528 (1960). https://doi.org/10.1103/PhysRev.120.1528

J. Bekefi. Radiation Processes in Plasmas (Wiley, 1966).

A.I. Akhiezer, I.A. Akhiezer, R.V. Polovin, A.G. Sitenko, K.N. Stepanov Plasma Electrodynamics (Pergamon Press, 1978) [ISBN: 978-0-08-017783-0].

V.E. Golant. High-Frequency Wave Effects on the Shaping and Heating of Plasma in a High-Frequency Magnetic Field (Nauka, 1968) (in Russian).

V.Yu. Bychenkov, V.P. Silin. A kinetic equation for a plasma in a high-frequency field. J. Exper. Theor. Phys. 75, 40 (1975).

A.G. Sitenko. Fluctuations and Non-Linear Wave Interaction in Plasmas (Pergamon, 1982). [ISBN: 978-0-08-025051-9]. https://doi.org/10.1016/B978-0-08-025051-9.50011-1

V.N. Pavlenko, V.G Panchenko, S.M. Revenchuk. Anomalous absorption of electromagnetic wave energy near the lower hybrid resonance. Plasma Phys. Contr.Fusion 26, 1221 (1984). https://doi.org/10.1088/0741-3335/26/10/006

Yu.L. Klimontovich. Kinetic Theory of Nonideal Gases and Nonideal Plasmas (Pergamon, 1982) [ISBN: 978-0-08-021671-3]. https://doi.org/10.1016/B978-0-08-021671-3.50005-0

V.P. Silin. Parametric Effects of High-Power Radiation on Plasma (Nauka, 1973) (in Russian).

V.N. Pavlenko, V.G Panchenko, S.M. Revenchuk. Turbulent conductivity of a magnetoactive plasma. J. Exper. Theor. Phys. 64, 50 (1986).

H. Wilhelmsson, V.N. Pavlenko, V.G Panchenko. Electromagnetic wave scattering by a turbulent plasma in the presence of a lower hybrid pump. Phys. Scripta 43, 323 (1991). https://doi.org/10.1088/0031-8949/43/3/020

V.N. Pavlenko, V.G Panchenko. Parametric absorption of lower hybrid waves in a nonuniform magnetized plasma. Plasma Phys. Rep. 25, 288 (1999).

Published

2019-10-11

How to Cite

Panchenko, V. G., & Porytsky, P. V. (2019). Influence of Inhomogeneity on Transformation and Radiation Processes in Plasma with Upper Hybrid Pump. Ukrainian Journal of Physics, 64(9), 814. https://doi.org/10.15407/ujpe64.9.814

Issue

Section

Plasma physics