High Flux Radical and Ultraviolet (UV) Generation by Atmospheric Pressure Nonequilibrium Plasmas.

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-04-C-0132
Agency Tracking Number: F033-0118
Amount: $749,273.00
Phase: Phase II
Program: STTR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: AF03T019
Solicitation Number: N/A
Small Business Information
2766 Indian Ripple Rd, Dayton, OH, 45440
DUNS: 884812025
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Peter Bletzinger
 Senior Physist
 (937) 429-4980
Business Contact
 Larry Goss
Title: President
Phone: (937) 429-4980
Email: gosslp@innssi.com
Research Institution
 Stevens Institute of Technology
 Erich E Kunhardt
 Castle Point on Hudson
Hoboken, NJ, 07030
 (201) 216-5671
 Nonprofit college or university
Presently available atmospheric pressure plasma sources of reactive radicals, ions or intense VUV/UV radiation for materials processing, treatment of toxic waste and removal of surface contamination use arc discharges (DC or low frequency), corona or rf discharges, have too small a volume or their volumetric efficiency is too low, and operate at too high a neutral gas temperatures for many sensitive AF applications. Stevens Institute of Technology and ISSI under a phase I STTR have investigated novel discharge configurations and excitation schemes to obtain maximum radical production and UV radiation intensity in plasmas. Initial measurements of UV radiation output for various gases and gas mixtures were performed and the production of O-atoms, as an example of a radical of interest, was measured spectroscopically. Under the proposed phase II effort the production of O and H-atoms and other radicals of interest such as OH will be optimized for volume scale-up by optimum power conditioning, discharge configuration and gas composition. Methods to accurately quantify the radical production will be developed. Larger area sources using newly developed high speed, high current switches will be investigated for flux scaling of both radicals and VUV/UV radiation.

* Information listed above is at the time of submission. *

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