Title :
Photo-enhanced plasma formation in air
Author :
Grimes, M.P. ; Kelley, J.D. ; Mullen, J.H. ; Reese, M.L.
Author_Institution :
Boeing Co., St. Louis, MO, USA
Abstract :
Summary form only given. We present results on RF plasma formation in air in the presence of broadband-visible to near IR-radiation. These initial studies will be done at relatively low pressure, a few torr or less. Our aim is to assess the degree to which photodetachment of electrons from O/sub 2//sup -/ can increase the steady state electron number density for a given RF energy input. The work will be done utilizing our 1.2 m diameter Plexiglas spherical chamber, which has been instrumented and used for plasma studies. This facility is equipped for electron density measurements using microwave interferometry. The light sources will be small quartz-halogen lamps with a total power of one or two kilowatts illuminating a small volume of plasma in the sphere.
Keywords :
electromagnetic wave interferometry; electron density; electron detachment; plasma density; plasma diagnostics; plasma production; Plexiglas spherical chamber; RF energy input; RF plasma formation; air; broadband radiation; electron density measurements; electrons photodetachment; microwave interferometry; near IR radiation; photo-enhanced plasma formation; quartz-halogen lamps; steady state electron number density; visible radiation; Density measurement; Electrons; Instruments; Light sources; Optical interferometry; Plasma density; Plasma measurements; Plasma sources; Radio frequency; Steady-state;
Conference_Titel :
Plasma Science, 1998. 25th Anniversary. IEEE Conference Record - Abstracts. 1998 IEEE International on
Conference_Location :
Raleigh, NC, USA
Print_ISBN :
0-7803-4792-7
DOI :
10.1109/PLASMA.1998.677866
