Title: electron spectrometer
Long Title: IUPAC Gold Book - electron spectrometer
DOI: 10.1351/goldbook.09329
Status: current

Definition
Measuring system, the essential part of which is an electron energy analyser.

Note
The term electron spectrometer can be used either as a synonym for electron energy analyser or to describe a more complex instrument based on an electron energy analyser and additional electron-optical components. Occasionally, the term is used to describe a complete working system with an energy analyser, possible electron-optical components, an electron detector, excitation sources, vacuum pumps, control electronics, and a data-processing system. The meaning will normally be made clear by the context.

Related Term
- electron energy analyser: https://goldbook.iupac.org//terms/view/09325

Source
- PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1825 (https://doi.org/10.1515/pac-2019-0404)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/09329/html
- json: https://goldbook.iupac.org/terms/view/09329/json
- xml: https://goldbook.iupac.org/terms/view/09329/xml

Citation: Citation: 'electron spectrometer' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.09329
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Accessed: 2026-04-20T15:29:20+00:00