Title: indirectly-ionizing radiation
Long Title: IUPAC Gold Book - indirectly-ionizing radiation
DOI: 10.1351/goldbook.08730
Status: current

Definition
Beam of electrically neutral particles that cause ionization by interacting with atoms in a material, producing electrically-charged particles that subsequently cause direct ionization in the material.

Example
Gamma-rays and X-rays, which produce electrons, and neutrons, which produce alpha and beta particles.

Related Term
- direct ionization: https://goldbook.iupac.org//terms/view/08724

Source
- PAC, 2021, 93, 69. 'Vocabulary of radioanalytical methods (IUPAC Recommendations 2020)' on page 82 (https://doi.org/10.1515/pac-2019-0302)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/08730/html
- json: https://goldbook.iupac.org/terms/view/08730/json
- xml: https://goldbook.iupac.org/terms/view/08730/xml

Citation: Citation: 'indirectly-ionizing radiation' 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.08730
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Accessed: 2026-04-20T18:16:26+00:00