Part I
Prerequisites

2 X-ray and Neutron Scattering
2.1 Terminology: 2theta and Q
2.2 The physics of scattering
2.3 Scattering Probabilities
2.4 Resonant scattering
2.5 Diffraction from materials
2.6 Absorption and Extinction
2.7 For More Information
3 Crystallographic Symmetry
3.1 The lattice
3.2 The unit cell and fractional coordinates
3.3 Fourier Space
3.4 The reciprocal lattice
3.5 The structure factor equation
3.6 The electron density equation
3.7 Site Occupancies
3.8 Ideal vs. real crystals
3.9 Centering and the 14 Bravais lattices
3.10 Crystallographic Symmetry Elements
3.11 Space groups
3.12 Systematic Extinctions
3.13 Site symmetry and the asymmetric unit
3.14 Space groups in GSAS-II
3.15 Why does GSAS-II allow non-standard space groups?
3.16 Polar space groups
3.17 For More Information
4 Powder Diffraction
4.1 History
4.2 Diffraction by Polycrystalline Materials
4.3 For More Information