dorsal/arxiv
View SchemaInfluence of dissociative recombination on the LTE of argon high-frequency plasmas at atmospheric pressure
| Authors | Abel Sainz, Joelle Margot, Maria Carmen Garcia, Maria Dolores Calzada |
|---|---|
| Categories | |
| ArXiv ID | physics/0410129 |
| URL | https://arxiv.org/abs/physics/0410129 |
Abstract
This work presents a few preliminary results from a collisional-radiative (CR) model intended to describe an argon microwave (2.45 GHz) plasma at atmospheric pressure. This model aims to investigate the influence of dissociative recombination products on the Saha-Boltzmann plasma equilibrium. The model is tested through comparison with experimental results obtained in an argon plasma column generated by a traveling electromagnetic surface-wave, which is suitable to perform a parametric investigation of the plasma. It is shown that dissociative recombination predominantly populates the 4s levels and the ground state. It is further observed that it strongly influences the population of the levels, specially those of lower energy. However, the higher levels (close to the ionization limit) appear to be in equilibrium whatever the plasma density. This allows assuming that the excitation temperature Texc determined from the upper levels in the atomic system in the Boltzmann-plot is equal to Te.
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"abstract": "This work presents a few preliminary results from a collisional-radiative\n(CR) model intended to describe an argon microwave (2.45 GHz) plasma at\natmospheric pressure. This model aims to investigate the influence of\ndissociative recombination products on the Saha-Boltzmann plasma equilibrium.\nThe model is tested through comparison with experimental results obtained in an\nargon plasma column generated by a traveling electromagnetic surface-wave,\nwhich is suitable to perform a parametric investigation of the plasma. It is\nshown that dissociative recombination predominantly populates the 4s levels and\nthe ground state. It is further observed that it strongly influences the\npopulation of the levels, specially those of lower energy. However, the higher\nlevels (close to the ionization limit) appear to be in equilibrium whatever the\nplasma density. This allows assuming that the excitation temperature Texc\ndetermined from the upper levels in the atomic system in the Boltzmann-plot is\nequal to Te.",
"arxiv_id": "physics/0410129",
"authors": [
"Abel Sainz",
"Joelle Margot",
"Maria Carmen Garcia",
"Maria Dolores Calzada"
],
"categories": [
"physics.plasm-ph"
],
"title": "Influence of dissociative recombination on the LTE of argon high-frequency plasmas at atmospheric pressure",
"url": "https://arxiv.org/abs/physics/0410129"
},
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