: an SI unit for the dosage of ionizing radiation equal to 100 rems
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One sievert equals 1 joule per kilogram weighted for the biological effectiveness of the radiation and the tissues exposed.—IEEE Spectrum,
6 Mar. 2026 The sievert, by comparison, is the unit that quantifies the biological effect that a dose of radiation has on the body.—
Monique Brouillette,
Popular Mechanics,
28 Aug. 2023 The sievert is a unit that measures the amount of radiation absorbed by a person—while accounting for the type of radiation and its impact on particular organs and tissues in the body—and is equivalent to one joule of energy per kilogram of mass.—
Ramin Skibba,
Scientific American,
14 July 2021 One millisievert—a thousandth of a sievert—will have no effect; a chest CAT scan, for example, delivers a dose of seven millisieverts.—
Carolyn Kormann,
The New Yorker,
22 Dec. 2019