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MSE 421/521 Structural Characterization MSE 421/521 Spring 2016 Dr. Rick Ubic Reading Assignment 4 Due 8 February 2016 Brandon & Kaplan, 2.1.1, 2.3-2.3.2 Think about: 1. What is the Bragg equation? 2. What is the order of reflection? 3. What three factors determine whether or not a given hkl gives rise to a diffraction maximum? 4. X-ray diffraction is sufficient to determine changes in crystal lattice parameters due to what three effects? 5. What is Bremsstrahlung radiation? 6. What is characteristic radiation? 7. How are the linear absorption coefficient and mass absorption coefficient related? 8. What is an absorption edge? 9. In terms of λ, what is the minimum d spacing observable via diffraction? R. Ubic