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Glossary » Units » Radiation, Specific Energy » Gray
Gray (Gy) is a unit in the category of Radiation, specific energy. It is also known as grays, greys. This unit is commonly used in the SI unit system. Gray (Gy) has a dimension of L2T-2 where L is length, and T is time. This unit is the standard SI unit in this category.
Note that the seven base dimensions are M (Mass), L (Length), T (Time), Q (Temperature), N (Aamount of Substance), I (Electric Current), and J (Luminous Intensity).

Other units in the category of Radiation, specific energy include Kerma, Kilogray (kGy), Megarad (Mrd), and Rad (rd).

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