Energy value corresponding to the intensity maximum in a
direct spectrum or to the intensity minimum (i.e. the negative excursion) for a
differential spectrum.
Notes: - The energy value can relate to the peak envelope for a group of overlapping peaks or to the positions of constituent peaks obtained by peak synthesis.
- For the differential spectrum in Auger electron spectroscopy (AES), the modulation, or differentiating amplitude should be given.
- Peak energies for the differential spectrum in AES have greater kinetic energy than those for the direct spectrum.
Source:
PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1809 (https://doi.org/10.1515/pac-2019-0404)