Diffraction From Materials

PrefaceAcknowledgmentsChapter 1 Principles of Crystallography 1.1 Introduction 1.2 One-Dimensional Symmetry 1.3 Two-Dimensional Symmetry—Point Groups 1.4 Two-Dimensional Symmetry—Lattices 1.5 Two-Dimensional Symmetry—Space Groups 1.6 Three-Dimensional Symmetry 1.7 Some Real Crystal Structures References ProblemsChapter 2 Geometrical Representations of Crystals 2.1 Naming Planes, Points, and Directions 2.2 Analytical Calculations in Crystallography 2.3 Graphical Methods in Crystallography 2.4 Practical Applications of Graphical Methods References ProblemsChapter 3 The Nature of Diffraction 3.1 Diffraction from a Grating 3.2 Diffraction from Planes of Atoms—Bragg's Law 3.3 Diffraction from a Row of Atoms 3.4 Diffraction from a Three-Dimensional Crystal 3.5 Calculation of the Structure Factor 3.6 Summary References ProblemsChapter 4 Properties of Radiation Useful for Studying the Structure of Materials 4.1 Production of Radiation—X Rays 4.2 Production of Radiation—Neutrons 4.3 Production of Radiation—Electrons 4.4 The Interaction of X Rays with Matter 4.5 The Interaction of Electrons with Matter 4.6 The Interaction of Neutrons with Matter 4.7 The Absorption of X Rays in Matter 4.8 The Absorption of Neutrons in Matter 4.9 Refraction of Radiation by Matter 4.10 Detection of Radiation—Film Techniques 4.11 Detection of Radiation—Counters and Associated Electronic Components References ProblemsChapter 5 Recording the Diffraction Pattern 5.1 Introduction 5.2 Using a Range of Wavelengths—Laue Patterns 5.3 The Rotating Crystal Method 5.4 The Weissenberg Method 5.5 The Precession Method 5.6 Orienting a Crystal for One Diffraction Spot 5.7 The Powder Method 5.8 Patterns with Very Short Wavelength Radiation References ProblemsChapter 6 Determination of Crystal Structures 6.1 Introduction 6.2 Obtaining FF* from Measured Intensities 6.3 Some Simple Crystal Structures 6.4 Refinement by Least Squares 6.5 Applications of Fourier Analysis to Diffraction 6.6 Electron Density Mapping 6.7 The Patterson Function 6.8 Heavy Atom Techniques 6.9 Intensity Statistics and Inequalities 6.10 Difference Techniques 6.11 Helical Structures References ProblemsChapter 7 What Else Can We Learn from a Diffraction Experiment besides the Average Structure? 7.1 Introduction 7.2 Thermal-Diffuse Scattering 7.3 Distortion and Mosaic Size 7.4 Slit Corrections 7.5 Stacking Disorder 7.6 Local Ordering and Clustering 7.7 Small-Angle Scattering 7.8 Liquids and Amorphous Solids References ProblemsChapter 8 The Dynamical Theory of Diffraction 8.1 Introduction 8.2 The Dielectric Constant in a Crystal 8.3 Waves That Satisfy Bragg's Law and Maxwell's Equations inside a Crystal 8.4 Boundary Conditions 8.5 Field Amplitudes 8.6 Poynting's Vector and Energy Flow in a Crystal 8.7 Absorption in More Detail 8.8 Physical Interpretation of Anomalous Absorption 8.9 Exit Beams Again 8.10 Intensity in Bragg Reflections 8.11 X-Ray Topography References ProblemsAppendix A Location of Useful Information in International Tables for CrystallographyAppendix Β Crystallographic Classification of the 230 Space GroupsAppendix C Determination of the Power of the Direct Beam in X-Ray DiffractionAnswers to Selected ProblemsIndex