FeSuMa can quickly record Fermi surface maps, but not only this. By scanning the threshold energy and differentiating the resulted 4-dimensional dataset along the energy direction, one is able to obtain the full energy-momentum dataset. This example is recorded from the famous bismuth telluride within only 30 minutes. Energy range is 0.7 eV, step – 10 meV.
To see the dataset, please, follow this link: