Units of measurement
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Calculations
Gray (Gy)
Rad
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Information
Gray (Gy)
Gray (Gy) – unit of measurement for absorbed dose of ionizing radiation, equal to 1 joule per kilogram (1 Gy = 1 J/kg).
Rad
Rad (rad) – unit of measurement for absorbed dose of ionizing radiation in the older system, equal to 0.01 Gray (1 rad = 0.01 Gy).