Large Volume Non-Equilibrium Air Plasma at Atmospheric Pressure: A Novel Method with Low Power Requirements


Book Description

This document is the final technical report on the research activities carried out under AFOSR Grant F49620-03-1-0325. Here we present our research results, which took place in the last three years and a half. Particularly, during the later period of performance the focus of our activities was on carrying out diagnostics on plasma devices based on new approaches that use high voltage narrow pulses to ignite the plasma. These novel approaches allow for the generation of non-thermal high-pressure discharges that can be used as radiation sources and for biomedical applications.




Non-Equilibrium Air Plasmas at Atmospheric Pressure


Book Description

Atmospheric-pressure plasmas continue to attract considerable research interest due to their diverse applications, including high power lasers, opening switches, novel plasma processing applications and sputtering, EM absorbers and reflectors, remediation of gaseous pollutants, excimer lamps, and other noncoherent light sources. Atmospheric-pressu




Mechanisms of Ionizational Nonequilibrium in Air Plasmas


Book Description

The goal of this MURI program was to discover physical mechanisms for significantly reducing the power budget required to create and sustain large volume atmospheric air plasmas at temperature below 2000K with electron number densities of the order of 10 13 cm -3. The Stanford consortium Experimentally demonstrated the generation of over 10 12 electrons/cm 3 in atmospheric pressure air at 2000K, with an average power of 12 W/cm 3, i.e. 250 times smaller than a DC discharge at 10 12/cm3.




Low Temperature Plasma Technology


Book Description

Written by a team of pioneering scientists from around the world, Low Temperature Plasma Technology: Methods and Applications brings together recent technological advances and research in the rapidly growing field of low temperature plasmas. The book provides a comprehensive overview of related phenomena such as plasma bullets, plasma penetration i




Creation and Measurement of Air Plasmas


Book Description

The parent program focuses on minimization of power budget for the efficient creation of large volume, atmospheric pressure air plasmas, with minimum electron density of 10(exp 13)/cu cm and heavy species translational temperature not exceeding 2000 K. Since a thermal plasma with 10(exp 13)/cu cm electron density necessitates a heavy species temperature of approximately 4200 K. the stated program goals inherently define a nonequilibrium plasma. OSU's approach for attaining the program goals is two-pronged based on: (1) Creation of a low translational temperature, highly vibrationally excited environment in which the rates of principal electron loss channels are reduced by orders of magnitude. (2) Efficient electron production by means of an electron beam and/or application of a short pulse. high E/n electric field.







Encyclopedia of Plasma Technology - Two Volume Set


Book Description

Technical plasmas have a wide range of industrial applications. The Encyclopedia of Plasma Technology covers all aspects of plasma technology from the fundamentals to a range of applications across a large number of industries and disciplines. Topics covered include nanotechnology, solar cell technology, biomedical and clinical applications, electronic materials, sustainability, and clean technologies. The book bridges materials science, industrial chemistry, physics, and engineering, making it a must have for researchers in industry and academia, as well as those working on application-oriented plasma technologies. Also Available Online This Taylor & Francis encyclopedia is also available through online subscription, offering a variety of extra benefits for researchers, students, and librarians, including: Citation tracking and alerts Active reference linking Saved searches and marked lists HTML and PDF format options Contact Taylor and Francis for more information or to inquire about subscription options and print/online combination packages. US: (Tel) 1.888.318.2367; (E-mail) [email protected] International: (Tel) +44 (0) 20 7017 6062; (E-mail) [email protected]







Cold Plasma


Book Description

Non-equilibrium plasma (or low-temperature plasma, LTP) offers a chemically rich medium without the need for high power and elevated temperatures. This unique characteristic has made LTP very useful for various industrial and biomedical applications where thermal effects are not desirable. In addition, the relative simplicity of the design of sources capable of generating non-equilibrium plasma at atmospheric pressure makes LTP a very attractive technology that can accomplish the same or better results than much more complex and expensive approaches. This book describes various low-temperature plasma sources and some of their environmental and biomedical applications. The plasma sources covered in this book include low-temperature plasma jets which are novel devices that can launch low-power, low-temperature plasma plumes in ambient air. These plasma plumes can accurately and reliably be aimed at a surface to be treated or at a biological target such as cells and tissues. The application of these plasma jets in medicine, including in cancer therapy, are thoroughly discussed in this book. The contents of this book will appeal to engineers, medical experts, academics, and students who work with plasma technology.




DC Large Volume Non-Thermal Plasma at Atmospheric Pressure


Book Description

This document is the final report on the research activities carried out under AFOSR Grant F49620-00-1-0168. It describes the research results and the various events, which took place during the period of this research program. The focus of our activities is the investigation of the properties of a large volume, non-thermal, atmospheric pressure plasma generated by the "Resistive Barrier Discharge". The biological applications of this discharge have also been investigated. These include the study of the germicidal effects as well as the effects of the plasma on the biochemical pathways of bacteria.