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Open AccessArticle

On the Electrical and Optical Features of the Plasma Coagulation Controller Low Temperature Atmospheric Plasma Jet

1
Consorzio RFX, 35127 Padova, Italy
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Department of Industrial Engineering, University of Padova, 35131 Padova, Italy
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Department of Medical and Surgical Sciences, Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy
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Department of Physics “G. Galilei”, University of Padova, 35131 Padova, Italy
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Author to whom correspondence should be addressed.
Plasma 2019, 2(2), 156-167; https://doi.org/10.3390/plasma2020012
Received: 1 April 2019 / Revised: 27 April 2019 / Accepted: 29 April 2019 / Published: 4 May 2019
(This article belongs to the Special Issue Atmospheric Pressure Plasma Sources Applied in Biological Systems)
We report on the electrical and optical characterization of the Plasma Coagulation Controller (PCC) device, a low temperature atmospheric plasma source for biomedical applications. This device, designed for the study of plasma-induced blood coagulation, has been developed to operate flexibly in several operational conditions, since it is possible to vary the applied voltage V p and the pulse repetition rate f in a quite wide range ( V p range: 2–12 kV, f range: 1–40 kHz). Emission spectroscopy measurements were conducted by varying the line of sight along the axis of helium and neon plasma plumes. The increase of the Reactive Oxygen and Nitrogen Species (RONS) has been observed, as one moves from inside the gas pipe to the outside, as a consequence of the gas mixture with the surrounding air. Furthermore, high-speed photographs of the plasma jet were taken, showing that the plasma is not uniformly distributed in a continuous volumetric region, the plasma being concentrated in localized structures called Pulsed Atmospheric-pressure Plasma Streams (PAPS). The propagation velocities of these objects have been examined, noting that they are not related to the propagation of ion sound waves. Rather, we provide indications that the streamer propagation speed is proportional to the electron drift velocity. View Full-Text
Keywords: Atmospheric Pressure Plasma Jet (APPJ); Low Temperature Plasma (LTP); Cold Atmospheric Plasma (CAP); Plasma Medicine; Dielectric Barrier Discharge (DBD); Fast ICCD Imaging; Pulsed Atmospheric-pressure Plasma Streams (PAPS) Atmospheric Pressure Plasma Jet (APPJ); Low Temperature Plasma (LTP); Cold Atmospheric Plasma (CAP); Plasma Medicine; Dielectric Barrier Discharge (DBD); Fast ICCD Imaging; Pulsed Atmospheric-pressure Plasma Streams (PAPS)
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Cordaro, L.; De Masi, G.; Fassina, A.; Mancini, D.; Cavazzana, R.; Desideri, D.; Sonato, P.; Zuin, M.; Zaniol, B.; Martines, E. On the Electrical and Optical Features of the Plasma Coagulation Controller Low Temperature Atmospheric Plasma Jet. Plasma 2019, 2, 156-167.

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