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...Recall dls basics fluctuations in scattered light arise from diffusive motion correlation intensity z t h k g exponential i decay s ms hardware correlators measure the signal at very short time scales nanoseconds which decays shows timescale of particles moving and out incident laser causing size measurement equations d measured diffusion constant qt obtained fit q scattering vector with units length l wavelength pnsin j angle n solvent index refraction use stokes einstein to obtain kt viscosity medium b where pha a radius fitting options exponentials single double stretched cumulant analysis contin nnls regularized aexp c e o bexp or parameters generate distribution exp first order one parameter average second mt two u related width third three skew assumptions p expc gaussian so polydispersity m alternative nd moment pdi not polymer mws...