Sievert meaning

sē'vərt
The SI unit for the amount of ionizing radiation required to produce the same biological effect as one rad of high-penetration x-rays, equivalent to a gray for x-rays.
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The basic unit in the SI system that is used to measure the amount of biological damage caused by various types of ionizing radiation, equal to the dose that produces the same amount of damage in human tissue as one gray of X-rays (100 rem or 8.38 roentgens)
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The SI derived unit used to measure the amount of radiation necessary to produce the same effect on living tissue as one gray of high-penetration x-rays. The sievert is named after Swedish physicist Rolf Sievert (1896–1966).
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In the International System of Units, the derived unit of radiation dose; the dose received in one hour at a distance of 1 cm from a point source of 1 mg of radium in a 0.5 mm thick platinum enclosure. Symbol: Sv.
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Origin of sievert

  • After Rolf Maximilian Sievert (1896–1966), Swedish radiologist
    From American Heritage Dictionary of the English Language, 5th Edition
  • Named after the Swedish radiologist Rolf Sievert.
    From Wiktionary