Study of Dielectric Barrier Discharges in nitrogen and afterglows at atmospheric pressure
نویسندگان
چکیده
منابع مشابه
Atmospheric pressure plasma of dielectric barrier discharges*
The dielectric barrier discharge (DBD) has a number of industrial applications and has been a subject of research for many years. Many studies have been carried out to understand the underlying DBD physics. Despite the fact that much progress has been made, some important issues are still far from being clear. In this work, we summarize the basics of DBD physics and introduce innovative concept...
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Generally the discharge in a dielectric barrier arrangement consists of a great number of filaments in parallel. It has been shown in the past that barrier discharges without filaments could also be established in special electrode arrangements and in limited working domains at atmospheric pressure. Further it was shown that a reliable control of such discharges in a cheap gas like nitrogen is ...
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A reduction of more than 4 orders of magnitude of survivors was obtained by exposing a Bacillus Stearothermophilus spores contaminated surface to an atmospheric pressure DBD post-discharge for 20 minutes. Decontamination mechanisms are investigated assuming that (i) inactivation is obtained when the bacteria DNA is fragmented, (ii) the protein coats are the main protection of the cell core DNA ...
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The interaction of plasmas with liquids is of increasing importance in biomedical applications. Tissues treated by atmospheric pressure dielectric barrier discharges (DBDs) in plasma medicine are often covered by a thin layer of liquid, typically a blood serum like water with dissolved gases and proteins up to hundreds of micrometres thick. The liquid processes the plasma-produced radicals and ...
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To achieve suitable conditions for generation and observation plasma at over-atmospheric pressures we constructed a specially adapted reactor. Plasma was generated between two parallel electrodes covered by dielectric material. Observations were made in the dynamic mode (gas flow 1.4 l/min.) and static mode at pressures form 0.8 atm. to 2 atm. (from 0.9 atm. to 1.3 atm. in static mode) in high ...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2010
ISSN: 1742-6596
DOI: 10.1088/1742-6596/207/1/012007