12380 IUPAC Gold Book - Daly detector 10.1351/goldbook.12380 12380 current 1 Detector consisting of an off-axis conversion dynode, scintillator, and photomultiplier. The dynode at high potential emits secondary electrons when ions impinge on the surface. The secondary electrons are accelerated onto the scintillator that produces light that is then detected by the photomultiplier detector, which can be outside the vacuum system. conversion dynode https://goldbook.iupac.org//terms/view/12372 ion-to-photon detector https://goldbook.iupac.org//terms/view/12446 PAC, 2013, 85, 1515. 'Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)' on page 1535 (https://doi.org/10.1351/PAC-REC-06-04-06) https://goldbook.iupac.org/terms/view/12380/html https://goldbook.iupac.org/terms/view/12380/json https://goldbook.iupac.org/terms/view/12380/plain Citation: 'Daly detector' 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.12380 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. 2026-07-22T21:15:29+00:00