Abstract
The complex dynamics of radio-frequency driven atmospheric pressure plasma jets is investigated using various optical diagnostic techniques and numerical simulations. Absolute
number densities of ground state atomic oxygen radicals in the plasma effluent are measured by two-photon absorption laser induced fluorescence spectroscopy (TALIF). Spatial profiles
are compared with (vacuum) ultra-violet radiation from excited states of atomic oxygen and molecular oxygen, respectively. The excitation and ionization dynamics in the plasma core are dominated by electron impact and observed by space and phase resolved optical emission spectroscopy (PROES). The electron dynamics is governed through the motion of the plasma boundary sheaths in front of the electrodes as illustrated in numerical simulations using a hybrid code based on fluid equations and kinetic treatment of electrons.
Original language | English |
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Article number | 012013 |
Pages (from-to) | 012013-012013-8 |
Number of pages | 12006 |
Journal | Journal of Physics: Conference Series |
Volume | 162 |
DOIs | |
Publication status | Published - May 2009 |
ASJC Scopus subject areas
- General Physics and Astronomy