Title: fast neutrons Long Title: IUPAC Gold Book - fast neutrons DOI: 10.1351/goldbook.F02329 Status: current Definition Neutrons of kinetic energy greater than some specified value. This value may vary over a wide range and will be dependent upon the application. Related Term - kinetic energy: https://goldbook.iupac.org//terms/view/K03402 Source - PAC, 1994, 66, 2513. 'Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)' on page 2522 (https://doi.org/10.1351/pac199466122513) Other Outputs - html: https://goldbook.iupac.org/terms/view/F02329/html - json: https://goldbook.iupac.org/terms/view/F02329/json - xml: https://goldbook.iupac.org/terms/view/F02329/xml Citation: Citation: 'fast neutrons' 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.F02329 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: 2026-04-17T20:10:19+00:00