05519 IUPAC Gold Book - secondary-electron yield 10.1351/goldbook.S05519 S05519 current synonym: secondary electron yield 1 The number of secondary electrons generated per primary electron for a given specimen and experimental conditions. It depends on the (mean) atomic number of the excited area of the sample, the angle between electron beam and sample surface, the primary electron energy, thickness of the sample and sample potentials. angle https://goldbook.iupac.org//terms/view/A00346 atomic number https://goldbook.iupac.org//terms/view/A00499 primary electron https://goldbook.iupac.org//terms/view/P04829 secondary electrons https://goldbook.iupac.org//terms/view/S05518 PAC, 1983, 55, 2023. 'Nomenclature, symbols and units recommended for in situ microanalysis (Provisional)' on page 2026 (https://doi.org/10.1351/pac198355122023) https://goldbook.iupac.org/terms/view/S05519/html https://goldbook.iupac.org/terms/view/S05519/json https://goldbook.iupac.org/terms/view/S05519/plain Citation: 'secondary-electron yield' 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.S05519 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. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . 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. 2026-06-07T11:41:37+00:00