Visualizing Diffraction Patterns of Crystals with a Defect

Algorithm to Create a Defect in a Simulated Atomic Density Image :

Here, the algorithm will create new data which will be called

AtomDensityWithDefect

Look for a maximum in the atomic density map, and replace a circle around it with a "hole"

We will show some examples of the diffraction and image reconstruction of different kinds of simulated data, these data will be explored below in the Computational Microscopy sections.

In the above, the defect causes diffuse intensity to appear in the pattern. Using methods produced below, we can investigate how much of reciprocal space is needed to reproduce the defect in the inverse transform (i.e., the image of the scatters that is produced in a TEM).

Created by Wolfram Mathematica 6.0 (01 November 2007) |