Energy exchange in strongly coupled plasmas with electron drift

Journal Article · Sun Nov 15 04:00:00 EST 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4935921· OSTI ID:22489826

Akbari-Moghanjoughi, M. ^[1]; Ghorbanalilu, M. ^[2]

---

1. Department of Physics, Faculty of Sciences, Azarbaijan Shahid Madani University, 51745-406 Tabriz (Iran, Islamic Republic of)
2. Physics Department, Shahid Beheshti University, G.C., Evin, Tehran (Iran, Islamic Republic of)

In this paper, the generalized viscoelastic collisional quantum hydrodynamic model is employed in order to investigate the linear dielectric response of a quantum plasma in the presence of strong electron-beam plasma interactions. The generalized Chandrasekhar's relativistic degeneracy pressure together with the electron-exchange and Coulomb interaction effects are taken into account in order to extend current research to a wide range of plasma number density relevant to big planetary cores and astrophysical compact objects. The previously calculated shear viscosity and the electron-ion collision frequencies are used for strongly coupled ion fluid. The effect of the electron-beam velocity on complex linear dielectric function is found to be profound. This effect is clearly interpreted in terms of the wave-particle interactions and their energy-exchange according to the sign of the imaginary dielectric function, which is closely related to the wave attenuation coefficient in plasmas. Such kinetic effect is also shown to be in close connection with the stopping power of a charged-particle beam in a quantum plasma. The effect of many independent plasma parameters, such as the ion charge-state, electron beam-velocity, and relativistic degeneracy, is shown to be significant on the growing/damping of plasma instability or energy loss/gain of the electron-beam.

• OSTI ID: 22489826
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 11 Vol. 22; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ASTROPHYSICS
CHARGE STATES
COULOMB ENERGY
DIELECTRIC MATERIALS
ELECTRON BEAMS
ELECTRON DRIFT
ELECTRON EXCHANGE
ELECTRON-ION COLLISIONS
ENERGY LOSSES
ENERGY TRANSFER
HYDRODYNAMIC MODEL
IONS
PARTICLE INTERACTIONS
PLASMA DENSITY
PLASMA INSTABILITY
QUANTUM PLASMA
RELATIVISTIC RANGE
SHEAR
STOPPING POWER
VISCOSITY