Record Display for the EPA National Library Catalog


Main Title Development of Laser Instrumentation for Particle Measurement.
Author Matthew, B. J. ; Kem, R. F. ;
CORP Author TRW Systems Group, Redondo Beach, Calif.
Year Published 1971
Report Number TRW-14103-6003-RO00; CPA-70-4; 0870;
Stock Number PB-205 189
Additional Subjects ( Holography ; Flow distribution) ; ( Boilers ; Flow distribution) ; ( Adsorbents ; Limestone) ; ( Air pollution ; Holography) ; Particles ; Surfaces ; Sulfur dioxide ; Injection ; Feasibility ; Ruby lasers ; Distribution(Property) ; Resolution ; Light scattering ; Backscattering ; Electron microscopy ; Air pollution control
Library Call Number Additional Info Location Last
NTIS  PB-205 189 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 72p
The report summarizes recent developments in laser-illuminated instrumentation for measuring particulate density distributions in an operating coal-fired steam boiler. The work is a continuation of a previous effort which was concerned with applying single beam (Gabor) pulsed ruby laser holography to the recording of particulates over extreme distances. The present work attempts to determine if limestone dust in the presence of flyash background could be recorded holographically via back or side scattering of a ruby laser beam. To investigate the feasibility of making holograms of side or back scattering of a ruby laser beam, a mathematical model was first derived. This model related 4 factors which gives the transmittance along the scattering path from the laser to a detector and allows analysis of experimental measurements.