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Optical and electrical characterization of an atmospheric pressure microplasma jet with a capillary electrode
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10.1063/1.3330507
/content/aip/journal/pop/17/3/10.1063/1.3330507
http://aip.metastore.ingenta.com/content/aip/journal/pop/17/3/10.1063/1.3330507
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Photograph of the jet/plume from the quartz tube and (b) schematic of the experimental setup with diagnostics systems.

Image of FIG. 2.
FIG. 2.

Waveforms of voltage and total current.

Image of FIG. 3.
FIG. 3.

Plume length as functions of (a) gas flow rate of He and Ar gas (b) of the additive oxygen flow rate for the He and Ar jet (at the applied voltage 1.8 and 2.0 kV).

Image of FIG. 4.
FIG. 4.

Measured plume temperature as a function of (a) applied voltage (at 1 l/min) and of (b) gas flow rate (at 1.8 and 2.0 kV) for the He and the Ar jet.

Image of FIG. 5.
FIG. 5.

Comparison of experimental and simulated spectra of OH (, 306–310 nm) transition for measurement of the He jet (2.0 kV, 1 l/min).

Image of FIG. 6.
FIG. 6.

(a) Recorded line and Gaussian fit of the He–Ne laser radiation, (b) recorded He line and Voigt fit, and (c) line shape obtained from the experiment and Voigt fit.

Image of FIG. 7.
FIG. 7.

Emission spectra from 200 to 900 nm observed in the He jet driven by (a) pulsed wave (2.0 kV, 1 l/min), (b) sinusoidal wave (, 1 l/min), and (c) RF power (10 W, 2 l/min).

Image of FIG. 8.
FIG. 8.

Emission spectra from 200 to 900 nm observed in the Ar jet driven by (a) pulsed wave (2.0 kV, 1 l/min), (b) sinusoidal wave (, 2 l/min), and (c) RF power (10 W, 2 l/min).

Image of FIG. 9.
FIG. 9.

Variations of the emission intensities from NO, OH, and O as a function of the amount of additive for the pulsed Ar jet.

Image of FIG. 10.
FIG. 10.

(a) Side view (1.8–2.2 kV, 1–6 l/min) of the accumulated ICCD image of the pulsed Ar jet under the shutter mode. (b) Front view of the jet under the gate mode (1.8 kV, 2 l/min).

Image of FIG. 11.
FIG. 11.

High-speed photographs of the pulsed Ar plasma plume taken under the gate mode in the voltage rising phase for various conditions (applied voltage and duty cycle); (a) 2.0 kV, 50%, (b) 1.8 kV, 50%, (c) 1.8 kV, 25%, and (d) 1.8 kV, 10%. The pulse repetition rate is 50 kHz and the flow rate is 2 l/min. (e) Image of plume in the voltage falling phase. The duty cycle is 50%.

Image of FIG. 12.
FIG. 12.

Average bullet velocity vs (a) the applied voltage and (b) the duty cycle. Bullet velocities for several values of (c) the applied voltage and (d) the duty cycle vs time.

Image of FIG. 13.
FIG. 13.

MCF-7 cells were stained with DAPI, and observed under fluorescence microscopy at a magnificence of ; arrows indicate apoptotic cells. The images observed in the pulsed Ar plasma jet with different conditions: (a) nontreated control, (b) Ar only, (c) Ar with the 5 SCCM of oxygen gas, and (d) Ar with the 10 SCCM of oxygen gas.

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/content/aip/journal/pop/17/3/10.1063/1.3330507
2010-03-08
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Optical and electrical characterization of an atmospheric pressure microplasma jet with a capillary electrode
http://aip.metastore.ingenta.com/content/aip/journal/pop/17/3/10.1063/1.3330507
10.1063/1.3330507
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