ker·​ma ˈkər-mə How to pronounce kerma (audio)
: the ratio of the sum of the initial kinetic energies of all charged particles liberated by uncharged ionizing particles (as neutrons) in an element of volume of irradiated matter to the mass of matter in the element of volume

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Cite this Entry

“Kerma.” Medical Dictionary, Merriam-Webster, Accessed 2 Dec. 2023.

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