Boundary of the Transition to Hollow Dust Structures in a DC Discharge in Neon with Microparticles
| Autor: | V. V. Shumova, D. N. Polyakov, Leonid Vasilyak |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Dusty plasma Glow discharge Work (thermodynamics) Materials science Physics and Astronomy (miscellaneous) chemistry.chemical_element Plasma Condensed Matter Physics 01 natural sciences Molecular physics 010305 fluids & plasmas Temperature gradient Neon chemistry Physics::Plasma Physics 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Current (fluid) Astrophysics::Galaxy Astrophysics Line (formation) |
| Zdroj: | Plasma Physics Reports. 45:285-288 |
| ISSN: | 1562-6938 1063-780X |
| DOI: | 10.1134/s1063780x19020090 |
| Popis: | The boundary (line) of the transition from homogenous dust structures to hollow dust structures in the coordinates gas pressure–discharge current in a glow discharge in neon was found experimentally. The experiments were carried out with spherical particles 2.55 and 4.14 μm in diameter. The transition was simulated using the diffusion–drift model of the positive column of a glow discharge in neon with allowance for the radial temperature gradient. Simulations of the experimental data have shown that the thermophoretic force acting on the microparticles in the dust structure depends on the discharge parameters and the dimensions of the microparticles and the dust structure. The results of this work can be used in dusty plasma technologies. |
| Databáze: | OpenAIRE |
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