Absorbed dose is the quantity of radiation received per unit mass within a given period of time. The SI unit of absorbed dose is the gray (Gy). One gray is the absorbed dose when the energy per unit mass imparted to matter is 1 joule per kilogram. A former unit, the rad, = 0.01 gray.
The absorbed dose rate is the absorbed dose per unit of time. Its unit is the Gy/h.
See also equivalent dose.
Related categories• ATOMIC AND NUCLEAR PHYSICS
• HEALTH AND DISEASE
• SPACE AND AEROSPACE MEDICINE
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