## Wikipedia - Gray (unità di misura) gray

https://doi.org/10.1351/goldbook.G02696
SI derived unit of energy imparted to an element of matter by @I03216@ divided by the mass of that element (absorbed @DT07361@ of radiation) equal to one @J03363@ per @K03391@ and admitted for reasons of safeguarding human health, $$\text{Gy}=\text{J}\ \text{kg}^{-1}$$.
Sources:
Green Book, 2nd ed., p. 72 [Terms] [Book]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 975 [Terms] [Paper]