AAAR 33rd Annual Conference
October 20 - October 24, 2014
Rosen Shingle Creek
Orlando, Florida, USA
Abstract View
The Crossover from Spherical Particle Scattering to Circular Aperture Diffraction in the Limit of Vary Large Spheres
WILLIAM HEINSON, Chris Sorensen, Amit Chakrabarti, Kansas State University
Abstract Number: 257 Working Group: Aerosol Physics
Abstract Using the Mie solutions to light scattering for a sphere and applying Q-space analysis, we look at how the scattered intensity evolves from being the square of the Fourier transform of a sphere at phase shift parameter of zero (small, low refractive particles) to the square of the Fourier transform of a circular aperture as the phase shift parameter approaches infinity. We find that as the phase shift parameter, rho, increases, different power law regimes develop. At qR<< rho a power law regime with exponent of -3 is present due to circular aperture diffraction. Then the intensity flattens out until qR=rho, after which a power law regime with exponent of -4 at qR>rho follows.