Title: ion kinetic energy spectrum Long Title: IUPAC Gold Book - ion kinetic energy spectrum DOI: 10.1351/goldbook.I03218 Status: current Definition A spectrum obtained when a beam of ions is separated according to the translational energy-to-charge ratios of the ionic species contained within it. A radial electric field (E) achieves separation of the various ionic species in this way. Source - PAC, 1991, 63, 1541. 'Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)' on page 1550 (https://doi.org/10.1351/pac199163101541) Other Outputs - html: https://dev.goldbook.iupac.org/terms/view/I03218/html - json: https://dev.goldbook.iupac.org/terms/view/I03218/json - xml: https://dev.goldbook.iupac.org/terms/view/I03218/xml Citation: Citation: 'ion kinetic energy spectrum' 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.I03218 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-01-24T05:15:12+00:00