What is the special unit of absorbed dose commonly referred to as?

The special unit of absorbed dose is known as the Gray (Gy). This unit measures the amount of radiation energy absorbed per kilogram of matter, providing a standardized way to quantify radiation exposure. One Gray is defined as the absorption of one joule of radiation energy by one kilogram of matter. The Gray is an important unit in radiological physics and is essential for ensuring safe radiation practices in medical and industrial settings.

In comparison, the Rad is an older unit of absorbed dose that has been largely replaced by the Gray in most contexts but is still used by some professionals, especially in the United States. The relationship is straightforward: one Gray is equivalent to 100 Rads. The other units listed, Sievert (Sv) and Rem, are used for measuring equivalent dose and are weighted for biological effects of radiation rather than absorbed dose itself.