AAAR 34th Annual Conference
October 12 - October 16, 2015
Hyatt Regency
Minneapolis, Minnesota, USA
Abstract View
A Light-Scattering Study of the Scattering Matrix Elements of Irregularly Shaped Particles
YULI HEINSON, Amit Chakrabarti, Chris Sorensen, Kansas State University
Abstract Number: 201 Working Group: Aerosol Physics
Abstract We report measurements of the light scattering from several irregularly shaped particles such as Arizona Road Dust, Al$_(2)O$_(3) abrasives, soot particles, and processed soot particles. Our experimental apparatus used photodiode arrays to detect scattered light simultaneously at 31 angles including small angles which allows for characterizing the sizes of particles. Q-space analysis is applied and reveals a comprehensive description of scattering in terms of power laws with quantifiable exponents. The exponents of power laws show a functionality with respect to rho prime where rho prime is 2kR((m$^2-1)/(m$^2+2)) universal to all these shapes. The exponents start from 4 and decrease to 1.5 with increasing rho prime.