Ion-acoustic solitary waves in ion-beam plasma with Boltzmann electrons
SCIE
SCOPUS
- Title
- Ion-acoustic solitary waves in ion-beam plasma with Boltzmann electrons
- Authors
- Choi, CR; Ryu, CM; Rha, KC; Min, KW; Lee, DY
- Date Issued
- 2012-03
- Publisher
- AMER INST PHYSICS
- Abstract
- Particle simulations and a pseudopotential method were used to study ion-acoustic solitary waves in a plasma composed of Boltzmann electrons and kinetic beam ions. Pseudopotential theory was first applied to determine how ion-acoustic solitary waves can exist in a two-component plasma. Then, particle simulations were carried out, wherein ion-acoustic solitary waves were excited by modulating the bias grid voltage in a double plasma model. For the modulation, the potential of the grid bias was rapidly decreased, such that hump-type ion-acoustic solitary waves with good Gaussian shape were excited one after another, forming a train of waves. The simulation also showed that the phase velocities of ions decrease sharply when the solitary wave occurs, which indicates that the solitary ion-acoustic wave is excited via the inverse Landau damping process. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3692049]
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12617
- DOI
- 10.1063/1.3692049
- ISSN
- 1070-664X
- Article Type
- Article
- Citation
- PHYSICS OF PLASMAS, vol. 19, no. 3, page. 32105-1 - 32105-6, 2012-03
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