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1-D fluid model of atmospheric-pressure rf He+O2 cold plasmas: Parametric study and critical evaluation
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Image of FIG. 1.
FIG. 1.

(Color online) Comparison of the current–voltage curve predicted by the plasma model and experimental data from the literature.19

Image of FIG. 2.
FIG. 2.

(Color online) Spatial distribution of positive ions (I), electron (II), negative ions (III), and net charge (IV) densities, at (a) t = 0, (b) t = 0.25τrf, (c) t = 0.50τrf, and (d) t = 0.75τrf, where τrf is the rf period (∼74 ns).

Image of FIG. 3.
FIG. 3.

(Color online) Time-averaged spatial distributions of (a) charged species and (b) neutral species.

Image of FIG. 4.
FIG. 4.

(Color online) The main (a) generation processes and (b) destruction processes of ground state atomic oxygen O. : collisional relaxation of O(1D) (R42-R44, R58); : electron impact dissociative excitation (R7-R8); : reaction between O2(b) and O3 (R52-R53); : electron impact dissociation (R6); : other generation processes; : recombination of ground state O via three-body reaction (R55); : three-body reaction for O3 formation (R57); : other destruction processes.

Image of FIG. 5.
FIG. 5.

(Color online) Spatial profile of the time-averaged power density dissipated by charged species.

Image of FIG. 6.
FIG. 6.

(Color online) Comparison of the normalized ground state O density profile in the radial direction obtained with (: Eq. (16)) and without (: Eq. (13)) volume loss.

Image of FIG. 7.
FIG. 7.

(Color online) Time-averaged (a) densities and (b) electrode loss rate of ROS at plasma-electrode interface as a function of electrode absorption probability. : O; : O(1d); :O (1s); : O2(a); : O2(b); : O2(v); : O3.


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Table I.

Transport coefficients (T in K).

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Table II.

Chemical reactions included in the models.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: 1-D fluid model of atmospheric-pressure rf He+O2 cold plasmas: Parametric study and critical evaluation