Unit of absorbed radiation dose (1 Gy equals 100 rad)
Expansion
Radiation Absorbed Dose
Purpose
Measures radiation energy deposited in tissue
Clinical Context
RAD is older unit of radiation dose (replaced by Gray [Gy]). 1 Gy equals 1 joule per kilogram equals 100 rad. Doses in medical imaging typically in milligrays (mGy).
Related Terms
- DLP
- CTDIvol
- Sievert
Key Points
- Rad (traditional unit) being replaced by Gray (Gy); 1 Gy equals 100 rad