half-value layer

noun
half-val·​ue layer | \ -ˈval-(ˌ)yü-, -ˈval-yə- How to pronounce half-value layer (audio) \

Medical Definition of half-value layer

: the thickness of an absorbing substance necessary to reduce by one half the initial intensity of the radiation passing through it

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Cite this Entry

“Half-value layer.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/half-value%20layer. Accessed 29 Sep. 2020.

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