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A Touchable Pulsed Air Plasma Plume Driven by DC Power Supply.
- Source :
-
IEEE Transactions on Plasma Science . 12/02/2010, Vol. 38 Issue 12, p3404-3408. 5p. - Publication Year :
- 2010
-
Abstract
- It remains a challenge to generate cold air plasma at atmospheric pressure. In this paper, a room-temperature atmospheric-pressure air plasma plume is generated by a dc power supply. Current–voltage measurements show that the discharge actually appears periodically with a frequency of about 25 kHz. The discharge current has a pulsewidth that is less than 100 ns while its peak value reaches about 17 mA. There is no risk of glow-arc transition. The plasma can be touched by a bare hand without any feeling of electrical shock or warmth. The maximum length of the plasma is about 2 cm. The whole device, including the power supply, is less than 1 kg. The preliminary inactivation experiment results show that the plasma can effectively kill Enterococcus faecalis, one of the main types of bacterium causing the failure of root canal treatment. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00933813
- Volume :
- 38
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Plasma Science
- Publication Type :
- Academic Journal
- Accession number :
- 57254942
- Full Text :
- https://doi.org/10.1109/TPS.2010.2082571