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Low-power atmospheric pressure mini-plasma and array for surface and material treatment

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
An apparatus for creating an atmospheric mini-plasma. The apparatus uses both a plasma support gas and a plasma reactive gas attached to a conduit in communication with a plasma generating region. The plasma generating region is designed with a gas inlet leading to a tube containing two parallel electrodes. The electrodes are attached to a direct current, continuous or pulsed, power supply that provides the electrical potential to create the atmospheric mini-plasma. The atmospheric mini-plasma discharges from the generating region opposite to the gas inlet. As the design of the plasma generating region is relatively small, a plurality of generating regions may be coupled together in an array. The additional feature of a pulsed power supply allows a compact design that is portable for field use.
Duan, Yixiang (White Rock, NM)
10/ 616,610
July 9, 2003
[0001] This invention was made with government support under Contract No. W-7405-ENG-36 awarded by the U.S. Department of Energy. The government has certain rights in the invention.