Non-thermal effects on decay of Lorentzian Trivelpiece-Gould waves
- Authors
- Lee, Myoung-Jae; Park, In Sun; Hong, Sunghoon; Chung, Kyu-Sun; Jung, Young-Dae
- Issue Date
- Mar-2022
- Publisher
- EDP Sciences
- Citation
- Europhysics Letters, v.137, no.5, pp 1 - 6
- Pages
- 6
- Indexed
- SCIE
SCOPUS
- Journal Title
- Europhysics Letters
- Volume
- 137
- Number
- 5
- Start Page
- 1
- End Page
- 6
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/107937
- DOI
- 10.1209/0295-5075/ac5a88
- ISSN
- 1286-4854
1286-4854
- Abstract
- The non-thermal effects on the low-frequency ion-acoustic Trivelpiece-Gould (TG) wave are examined in a Lorentzian weakly ionized dusty plasma waveguide such as the Hanyang University Diverter Plasma Simulator-2 (DiPS-2). By using the normal mode analysis and the separation of variables, the dispersion relation and the damping modes are obtained for the low-frequency ion-acoustic TG wave in a Lorentzian weakly ionized dusty plasma waveguide. With typical conditions of DiPS-2 such as plasma density n(e) congruent to n(i) < 10(11) cm(-3), ion-neutral collision frequency v(in) approximate to 20 kHz, electron temperature T-e congruent to 1-10 eV, and ion temperature T-i congruent to 0.1 eV, the following is found: 1) the magnitude of the damping rates of the low-frequency ion-acoustic TG wave in Lorentzian plasmas are always greater than those in Maxwellian plasmas; 2) the ion-acoustic TG wave for the first harmonic mode can also be existed for the shortest period of time; 3) the ion-acoustic TG wave in a smaller waveguide can be existed for a wide range of the wave number; and 4) the non-thermal character of a Lorentzian plasma enhances the anti-symmetric behavior of the damping rate for the ion-acoustic TG wave.
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