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Collisional damping of the surface ion-acoustic mode in semi-bounded plasmas

Authors
Lee, Myoung-JaeJung, Young-Dae
Issue Date
Nov-2021
Publisher
Institute of Physics Publishing
Keywords
collisional damping; surface ion-acoustic mode; surface waves
Citation
Plasma Physics and Controlled Fusion, v.63, no.11, pp.1 - 8
Indexed
SCIE
SCOPUS
Journal Title
Plasma Physics and Controlled Fusion
Volume
63
Number
11
Start Page
1
End Page
8
URI
https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/108140
DOI
10.1088/1361-6587/ac1f6a
ISSN
0741-3335
Abstract
The dissipation of ion-acoustic surface waves in a fully ionized and semi-bounded plasma is investigated by solving the dispersion integral formulated by employing the specular reflection boundary condition. Non-zero ion temperature and ion-ion collisions are considered in the dielectric permittivity. The calculated damping rate is composed of the collisionless Landau damping and the collisional dissipation. The distinctions between them are addressed here. It is found that the collisionless damping is significant in the region where the wavelength is larger than the electron Debye length. The collisional dynamics, however, as well as the ion temperature, dominates the wave damping when the wavelength is smaller than the electron Debye length.
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