Thermal effects in the dissipative instability of the electron beam-plasma systems

Shokri, Babak; Khorashadizadeh, S. M.

doi:10.1016/j.physleta.2005.12.060

Cited by 6 publications

(8 citation statements)

References 18 publications

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“…It is well known that the ion beam-plasma interaction is most significant when the Cherenkov resonant condition is satisfied [12,27]. Therefore, the solution of Equations (7) and (8) is…”

Section: Ion Beam Interaction With An Unmagnetized Plasmamentioning

confidence: 99%

“…pi , the effect of the magnetic field on the dispersion relation of electromagnetic waves becomes considerable and must be taken into account. This case is specially applicable in a fully magnetized beam-plasma waveguide [6,12]. Here, we consider that the beam is directed strictly parallel to the external magnetic field and this field is so strong that it can freeze the transversal motion of the beam and plasma particles.…”

Section: Ion Beam Interaction With Strongly Magnetized Plasmamentioning

confidence: 99%

“…0. Using the corresponding dispersion relation of high-frequency waves, Equation (12), in both strongly magnetized and unmagnetized plasmas, it can be found that the cut-off frequency is equal to ! pe and beams with high velocity can interact with the plasma.…”

Section: Waves In Random and Complex Media 365mentioning

confidence: 99%

“…Therefore, in order to examine the exact behavior of plasma instabilities, it is essential to consider both thermal and collisional effects. These effects have been studied for the dissipative instability of a relativistic electron beam in a fully magnetized plasma waveguide by Shokri and Khorashadizadeh [12].…”

Section: Introductionmentioning

confidence: 99%

“…[12] for the interaction of an underlimiting electron beam with a fully magnetized plasma. Therefore, in this case the components of the dielectric tensor are…”

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confidence: 99%

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Ion beam driven instabilities in unmagnetized and strongly magnetized plasmas

Niknam

Rastbood

Khorashadizadeh

2012

Waves in Random and Complex Media

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In this paper, the dissipative instabilities in the interaction of an ion beam with unmagnetized and strongly magnetized plasmas are investigated. In both cases, relevant dispersion equations of high-frequency and ion acoustic waves are obtained. In addition, the resonance frequencies and growth rates of the instabilities are derived. It is shown that the thermal motion of charged particles has positive effects on the resonance frequency but its influence on the growth rate of an instability depends on the plasma conditions. Although in all cases the collisions are found to have a stabilizing effect, it is shown that the dominant type of collisions (electronneutral or ion-neutral collisions) depends on the frequency range. It is also indicated that the resonance frequency and the growth rate of an instability in the unmagnetized plasma is higher than in the strongly magnetized plasma for non-zero propagation angles.

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“…It is well known that the ion beam-plasma interaction is most significant when the Cherenkov resonant condition is satisfied [12,27]. Therefore, the solution of Equations (7) and (8) is…”

Section: Ion Beam Interaction With An Unmagnetized Plasmamentioning

confidence: 99%

Section: Ion Beam Interaction With Strongly Magnetized Plasmamentioning

confidence: 99%

Section: Waves In Random and Complex Media 365mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…[12] for the interaction of an underlimiting electron beam with a fully magnetized plasma. Therefore, in this case the components of the dielectric tensor are…”

mentioning

confidence: 99%

See 3 more Smart Citations