Lecture 11 learning objec7ves
1. Illustrate constructive and destructive interference of waves.
2. Explain diffract/on of waves.
3. Explain how an x-‐ray diffract/on pattern arises.
4. Summarize the relationship between a diffract/on pattern and both molecular
structure and packing in a protein crystal.
5. Illustrate Bragg’s Law.
6. Outline the crystallographic phase problem, as well as some strategies for solving it
