Gy (Noun)
Meaning
The SI unit of energy absorbed from ionizing radiation; equal to the absorption of one joule of radiation energy by one kilogram of matter; one gray equals 100 rad.
Classification
Nouns denoting quantities and units of measure.
Examples
- The radiation exposure was measured in grays to determine the level of ionizing radiation absorbed by the patient's body.
- A dose of 1 gray is equivalent to the absorption of one joule of radiation energy per kilogram of matter.
- The worker's radiation exposure was calculated to be 0.5 grays over the course of the year.
- To put the risk into perspective, a typical chest X-ray delivers a dose of around 0.1 milligrays to the patient.
- The International Commission on Radiological Protection recommends that workers not exceed an annual dose limit of 20 grays.