| 释义 |
sievertenUK
sie·vert S0396375 (sē′vərt)n. Abbr. Sv 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.
[After Rolf Maximilian Sievert (1896-1966), Swedish radiologist.]sievert (ˈsiːvət) n1. (Units) the derived SI unit of dose equivalent, equal to 1 joule per kilogram. 1 sievert is equivalent to 100 rems. Symbol: Sv 2. (Units) (formerly) a unit of gamma radiation dose approximately equal to 8.4 × 10–2 gray[C20: named after Rolf Sievert (1896–1966), Swedish physicist]sie·vert (sē′vərt) A 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.TranslationssievertenUK
sievert[′zē·vərt] (nucleonics) The International System unit of dose equivalent, equal to the dose equivalent when the absorbed dose of ionizing radiation multiplied by stipulated dimensionless factors is 1 joule per kilogram. Abbreviated Sv. A unit of radiation dose, equal to the dose delivered by a point source of 1 milligram of radium, enclosed in a platinum container with walls 0.5-millimeter thick, to a sample at a distance of 1 centimeter over a period of 1 hour; equal to approximately 8.38 roentgens. Also known as millicurie-of-intensity-hour. sievertenUK
sievert [se´vert] the SI unit of radiation absorbed dose equivalent, defined as that producing the same biologic effect in a specified tissue as 1 gray of high-energy x-rays; 1 sievert equals 100 rem.sie·vert (Sv), (sē'vĕrt), The SI unit of ionizing radiation effective dose, equal to the absorbed dose in gray, weighted for both the quality of radiation in question and the tissue response to that radiation. The unit is the joule per kilogram and 1 Sv = 100 rem.
See also: effective dose, equivalent dose. [R. M. Sievert, Swedish physicist, 1896-1966] sievert Sv Radiation physics The SI unit of biologically effective dose–equivalent dose of ionizing radiation that produces the same biological effect–of ionizing radiaction–dose equivalence; 1.0 Sv = 1.0 joule/kilogram or 100 rem. See Gray, Rad; Roentgen. sie·vert (Sv) (sē'vĕrt) The SI unit of ionizing radiation effective dose, equal to the absorbed dose in gray, weighted for both the quality of radiation in question and the tissue response to that radiation. The unit is the joule per kilogram and 1 Sv = 100 rem.
See also: effective dosesievert The SI UNIT of equivalent absorbed dose of ionizing radiation. Compare RAD.sie·vert (Sv) (sē'vĕrt) The SI unit of ionizing radiation effective dose. AcronymsSeeSV |