SBIR Phase II: Novel On-Line Characterization Method for Suspended Particles

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The objective of this program is to develop a new method of analysis of the chemical composition, size, and number density of gas-suspended solids and liquids. The program will have the following specific objectives: (1) to develop an improved instrument; (2) to improve the theoretical basis of the method through measurement of the optical constants of candidate materials and extension of the theories to non-spherical samples, and to include multiple scattering; (3) to optimize the data reduction procedures and develop the analysis for extracting data from spectra of mixed sizes, mixed compositions and non-dilute samples; and (4) to validate the methodology on a wide variety of materials, particle sizes, and number densities.