Session EC17 - Scattering From Particles and Surfaces.
ORAL session, Monday morning, March 22
Room 263W, GWCC
Results are reported of static and dynamic light scattering for the measurements of the size distribution function of soot particles. Particles of nominal size greater than 30 nm were represented as fractal objects, and the scattering and extinction kernels were obtained using the discrete dipole array method, were angle-averaged, and are compared with mean-field fractal scaling results. Cryodeposit samples of soot particles were obtained from a stoichiometric CH_4/O_2 flame, and the melted samples were centrifuged to separate spatially the size distribution. Optical measurements were performed and reported of particles of nominal size greater than 30 nm as well as the smaller Rayleigh-range particles.