A series of electrons hittingĪn object is exactly equivalent to a beam of electron waves hitting the object and it produces a diffraction pattern in the IntroductionĮlectrons can act as waves as well as particles this is a consequence of quantum mechanics. It is strongly recommended that you read through the TLPs on Diffraction and ImagingĪnd X-ray Diffraction before reading this TLP. Know how to index a diffraction pattern from a sample with a known lattice.Understand why the spots on an electron diffraction pattern appear where they do.Example of indexing with an unknown electron beam orientation.Indexing with the orientation of the electron beam unknown.Example of indexing with a known electron beam orientation.Indexing with the orientation of the electron beam known.