Title: kinetic energy release
Long Title: IUPAC Gold Book - kinetic energy release
DOI: 10.1351/goldbook.12457
Status: current

Definition
Translational energy of fragments resulting from dissociation of a metastable ion measured relative to the center-of-mass.

Note
In this context, kinetic energy is interpreted as translational, rather than vibrational or rotational, kinetic energy.

Related Term
- kinetic energy release distribution (KERD): https://goldbook.iupac.org//terms/view/12458

Source
- PAC, 2013, 85, 1515. 'Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)' on page 1558 (https://doi.org/10.1351/PAC-REC-06-04-06)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/12457/html
- json: https://goldbook.iupac.org/terms/view/12457/json
- xml: https://goldbook.iupac.org/terms/view/12457/xml

Citation: Citation: 'kinetic energy release' 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.12457
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Accessed: 2026-07-12T10:24:01+00:00