Dissipative instability of a highly relativistic electron beam through the excitation of surface waves on a conducting medium

Shokri, Babak; Khorashadizadeh, S. M.

doi:10.1016/j.physleta.2005.06.047

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…It is well-known that the effects of dissipation, such as collisions, in the plasma not only lead to spatial and temporal variations of electromagnetic fields but can also influence the structure and stability of the system. The instability that occurs due to high dissipation effects and frequent collisions between particles is known as dissipative instability [5][6][7][8][9]. It is also known that the temperature of a plasma species significantly affects the beam-plasma instability via their thermal motions [10,11].…”

Section: Introductionmentioning

confidence: 99%

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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Section: Introductionmentioning

confidence: 99%

Ion beam driven instabilities in unmagnetized and strongly magnetized plasmas

Niknam

Rastbood

Khorashadizadeh

2012

Waves in Random and Complex Media

Self Cite

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“…6 Due to their special properties, the surface waves have already been the subject of many theoretical, experimental, and numerical researches. [7][8][9][10][11][12][13][14][15] These waves can be excited on a sufficiently dense plasma and essentially depend on the plasma properties. The surface waves propagation characteristics in dense plasmas are also affected by quantum effects.…”

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confidence: 99%

Theoretical study of the surface waves in semi-bounded quantum collisional plasmas

et al. 2012

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The propagation of surface waves on a semi-bounded quantum plasma is investigated taking into account the collisional effects. The quantum hydrodynamic model includes Bohm's quantum force, Fermi-Dirac statistical, and collisional corrections are used to derive the dispersion relation of these waves. It is shown that the collisions play a significant role on the decay of surface wave amplitude. Furthermore, the surface waves can be unstable in the presence of collisional effects. It is also indicated that the growth rate of the surface wave instability increases with the increase of collisional and quantum effects, especially in the high wavenumber region. V C 2012 American Institute of Physics. [http://dx.

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Propagation of a TE surface mode in a relativistic electron beam–quantum plasma system

Aziz¹

2012

Physics Letters A

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Dissipative instability of a highly relativistic electron beam through the excitation of surface waves on a conducting medium

Cited by 3 publications

References 17 publications

Ion beam driven instabilities in unmagnetized and strongly magnetized plasmas

Ion beam driven instabilities in unmagnetized and strongly magnetized plasmas

Theoretical study of the surface waves in semi-bounded quantum collisional plasmas

Propagation of a TE surface mode in a relativistic electron beam–quantum plasma system

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