half-value thickness

synonyms: half thickness, half-value layer thickness
https://doi.org/10.1351/goldbook.08729
Thickness of a specified material that, when introduced into the path of a given beam of radiation, reduces the intensity of a specified radiation by one half.
Source:
PAC, 2021, 93, 69. (Vocabulary of radioanalytical methods (IUPAC Recommendations 2020)) on page 82 [Terms] [Paper]
Citation: 'half-value thickness' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.08729 RIS BibTex EndNote
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