Small-angle X-ray scattering: characterization of cubic Au nanoparticles using Debye's scattering formula.

ABSTRACT: A versatile software package in the form of a Python extension, named CDEF (computing Debye's scattering formula for extraordinary form factors), is proposed to calculate approximate scattering profiles of arbitrarily shaped nanoparticles for small-angle X-ray scattering (SAXS). CDEF generates a quasi-randomly distributed point cloud in the desired particle shape and then applies the open-source software DEBYER for efficient evaluation of Debye's scattering formula to calculate the SAXS pattern (https://github.com/j-from-b/CDEF). If self-correlation of the scattering signal is not omitted, the quasi-random distribution provides faster convergence compared with a true-random distribution of the scatterers, especially at higher momentum transfer. The usage of the softwar

SUBMITTER: Deumer J 

PROVIDER: S-EPMC9348877 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature