Two techniques that explore how minimising the effects of dynamic interactions could lead to an improved understanding of underlying structural information in real and reciprocal space were reviewed and extended. The techniques of dislocation tomography and precession electron diffraction described here reflected  the pioneering work done on the weak-beam imaging of dislocations and structure-determination using kinematic diffraction. The weak-beam dark-field technique was extended to three dimensions to visualise networks of dislocations in a number of materials systems. Some of the issues that arise from using this technique were explored. It was shown how the overall reconstruction could be improved through careful image processing. Using scanning tunnelling electron microscopy medium-angle annular dark field imaging many of the artefacts seen in the weak-beam dark-field technique were minimised, with a significant increase in the ease of acquisition and processing of data. Recent developments in precession electron diffraction and the desire to better understand and optimise the technique were reported. In particular, the idea of 'intensity ordering' was explored as a means of judging the likely success of structure determination from precession data.

Dislocation Electron Tomography and Precession Electron Diffraction - Minimising the Effects of Dynamical Interactions in Real and Reciprocal Space. J.S.Barnard, A.S.Eggeman, J.Sharp, T.A.White, P.A.Midgley: Philosophical Magazine, 2010, 90[35-36], 4711-30