Accession Number : ADA264602


Title :   Observation of OH Radicals in a Filament-Assisted Diamond Growth Environment


Corporate Author : SRI INTERNATIONAL MENLO PARK CA MOLECULAR PHYSICS LAB


Personal Author(s) : Meier, Ulrich E ; Hunziker, Lukas E ; Crosley, David R ; Jeffries, Jay B


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a264602.pdf


Report Date : Jan 1991


Pagination or Media Count : 5


Abstract : The first observations of the hydroxyl radical in a hot filament assisted diamond growth environment are presented. Laser-induced fluorescence (LIF) is used to make in situ, nonintrusive, measurements of the spatial distribution of OH concentration near the filament as a function of feedstock composition, reactor pressure, and filament temperature. LIF measurements of the OH rotational level population distribution are used to determine spatially resolved gas temperature.... Optical diagnostics, Laser-induced fluorescence process control.


Descriptors :   *CRYSTAL GROWTH , *HYDROXYL RADICALS , SPATIAL DISTRIBUTION , REPRINTS , TEMPERATURE , LASER INDUCED FLUORESCENCE , CHEMICAL PROPERTIES , OBSERVATION , DIAMONDS , VAPOR DEPOSITION , CRYSTAL CHEMISTRY , SUBSTRATES , POPULATION , OXYGEN , CHEMICAL REACTIONS , PRESSURE , FILAMENTS , CARBON MONOXIDE


Subject Categories : Inorganic Chemistry
      Crystallography


Distribution Statement : APPROVED FOR PUBLIC RELEASE