EFTEM
As you prepare for an experiment, it is useful to understand EFTEM and the fundamental acquisition modes that support this technique.
Zero-Loss Image
Improve image contrast by filtering out inelastic scattering.
Unfiltered Image
Capture the full electron signal without energy filtering for a baseline EFTEM reference image.
Thickness Map
Visualize relative specimen thickness across the field of view using EFTEM‑based measurements.
Electron Spectroscopic Imaging
Generate element‑ and energy‑specific contrast by imaging electrons selected by their energy loss.
Jump-Ratio Map
Enhance elemental contrast by mapping intensity ratios above and below an ionization edge.
Elemental Map
Visualize the spatial distribution of elements by mapping energy‑loss signals across the specimen.
Follow these EFTEM mapping best practices to ensure you can isolate electrons from distinct energy ranges to form your image or diffraction pattern of interest.
