Cyclotron resonance in plasma flow

Artemyev, A. V.; Agapitov, O. V.; Krasnoselskikh, V. V.

doi:10.1063/1.4853615

Title: Cyclotron resonance in plasma flow

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Abstract

This paper is devoted to the mechanism of particle acceleration via resonant interaction with the electromagnetic circular wave propagating along the inhomogeneous background magnetic field in the presence of a plasma flow. We consider the system where the plasma flow velocity is large enough to change the direction of wave propagation in the rest frame. This system mimics a magnetic field configuration typical for inner structure of a quasi-parallel shock wave. We consider conditions of gyroresonant interaction when the force corresponding to an inhomogeneity of the background magnetic field is compensated by the Lorentz force of the wave-magnetic field. The wave-amplitude is assumed to be about 10% of the background magnetic field. We show that particles can gain energy if kv{sub sw}>ω>kv{sub sw}−Ω{sub c} where k is the wave number, v{sub sw} is a plasma flow velocity, and ω and Ω{sub c} are the wave frequency and the particle gyrofrequency, respectively. This mechanism of acceleration resembles the gyrosurfing mechanism, but the effect of the electrostatic field is replaced by the effect of the magnetic field inhomogeneity.

Authors:

Artemyev, A. V.; Agapitov, O. V.; Krasnoselskikh, V. V. ^[1]

LPC2E/CNRS-University of Orleans, Orleans (France)

Publication Date:: Sun Dec 15 00:00:00 EST 2013

OSTI Identifier:: 22218394

Resource Type:: Journal Article

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 20; Journal Issue: 12; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCELERATION; CYCLOTRON RESONANCE; ELECTROMAGNETIC RADIATION; GAIN; GYROFREQUENCY; LORENTZ FORCE; MAGNETIC FIELD CONFIGURATIONS; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; PLASMA; SHOCK WAVES

Citation Formats


                    Artemyev, A. V., Agapitov, O. V., and Krasnoselskikh, V. V. Cyclotron resonance in plasma flow.  United States: N. p., 2013. 
        Web.  doi:10.1063/1.4853615.

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                    Artemyev, A. V., Agapitov, O. V., & Krasnoselskikh, V. V. Cyclotron resonance in plasma flow.  United States.  https://doi.org/10.1063/1.4853615

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                    Artemyev, A. V., Agapitov, O. V., and Krasnoselskikh, V. V. 2013.  
        "Cyclotron resonance in plasma flow".  United States.  https://doi.org/10.1063/1.4853615.

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@article{osti_22218394,

  title        = {Cyclotron resonance in plasma flow},

  author       = {Artemyev, A. V. and Agapitov, O. V. and Krasnoselskikh, V. V.},

  abstractNote = {This paper is devoted to the mechanism of particle acceleration via resonant interaction with the electromagnetic circular wave propagating along the inhomogeneous background magnetic field in the presence of a plasma flow. We consider the system where the plasma flow velocity is large enough to change the direction of wave propagation in the rest frame. This system mimics a magnetic field configuration typical for inner structure of a quasi-parallel shock wave. We consider conditions of gyroresonant interaction when the force corresponding to an inhomogeneity of the background magnetic field is compensated by the Lorentz force of the wave-magnetic field. The wave-amplitude is assumed to be about 10% of the background magnetic field. We show that particles can gain energy if kv{sub sw}>ω>kv{sub sw}−Ω{sub c} where k is the wave number, v{sub sw} is a plasma flow velocity, and ω and Ω{sub c} are the wave frequency and the particle gyrofrequency, respectively. This mechanism of acceleration resembles the gyrosurfing mechanism, but the effect of the electrostatic field is replaced by the effect of the magnetic field inhomogeneity.},

  doi          = {10.1063/1.4853615},

  url          = {https://www.osti.gov/biblio/22218394},
  journal      = {Physics of Plasmas},

  issn         = {1070-664X},

  number       = 12,

  volume       = 20,

  place        = {United States},

  year         = {Sun Dec 15 00:00:00 EST 2013},

  month        = {Sun Dec 15 00:00:00 EST 2013}

}

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