title: Two-photon excited LIF determination of H-atom concentrations near a heated filament in a low pressure H(2)environment.
abstract: With respect to the investigation of low pressure filament-assisted chemical vapor deposition processes for diamond formation, absolute concentrations of atomic hydrogen were determined by two-photon laserinduced fluorescence in the vicinity of a heated filament in an environment containing H(2) or mixtures of H(2)and CH(4). Radial H concentration profiles were obtained for different pressures and filament temperatures, diameters, and materials. The influence of the addition of various amounts of methane on the H atom concentrations was examined.
authors.forename: U
authors.initials: U
authors.lastname: Meier
authors.forename: K
authors.initials: K
authors.lastname: Kohse-Hoinghaus
authors.forename: L
authors.initials: L
authors.lastname: Schafer
authors.forename: C P
authors.initials: CP
authors.lastname: Klages