Abstract
Abstract : The use of microhollow cathode discharges (MHCD) as plasma cathodes has allowed us to generate stable, direct current atmospheric pressure glow discharges in air with dimensions up (0 centimeters, electron densities of 10 to the 13th power cm-3, and temperatures of not more than 2000 K. By sustaining the discharge through consecutive electrical pulses, with duration of less than the time constant for flow-to-arc transition, the required electrical power density could he drastically reduced, compared to the dc option. The temporal development of electron density and gas temperature in response to 10 ns pulses in single and dual pulse operation has been measured. The electron density increased during an applied pulse with a reduced electric field of 220 Td to values greater than 10 to the 15th power cm-3, before decreasing to 10 to the 13th power cm-3 due to recombination over a time of several microseconds. Power densities required to sustain atmospheric air plasmas in a repetitive pulsed mode were found to be less than 50 W/cm3 for electron densities exceeding 10 to the 12th power cm-3 during the discharge cycle.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
