absorbed dose
81Roentgen (unit) — This article is about the unit of measurement. For Röntgen radiation, see X ray. For other uses, see Roentgen. The roentgen (R, also röntgen) is a unit of measurement for exposure to ionizing radiation (such as X ray and gamma rays), and is named …
82Conversion of units — is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors. Contents 1 Techniques 1.1 Process 1.2 Multiplication factors …
83Rad (unit) — The rad is a unit of absorbed radiation dose. The rad was first proposed in 1918 as that quantity of X rays which when absorbed will cause the destruction of the malignant mammalian cells in question... [1] It was defined in CGS units in 1953 as… …
84sievert — 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 …
85gray — The SI unit of absorbed dose of ionizing radiation, equivalent to 1 J/kg of tissue; 1 Gy = 100 rad. SYN: griseus. [Louis H. G., British radiologist, 1905–1965] * * * gray or chiefly Brit grey grā n any of a series of neutral colors ranging… …
86Food irradiation — The Radura logo, used to show a food has been treated with ionizing radiation. Food irradiation is the process of exposing food to ionizing radiation[1] to destroy microorganisms, bacteria, viruses, or ins …
87Gray (unit) — The gray (symbol: Gy) is the SI unit of absorbed radiation dose of ionizing radiation (for example, X rays), and is defined as the absorption of one joule of ionizing radiation by one kilogram of matter (usually human tissue).[1] Named after the… …
88Physique médicale — La physique médicale est une branche de la physique appliquée qui regroupe les applications de la physique en médecine. Elle concerne essentiellement les champs de la radiothérapie, de l imagerie médicale, de la médecine nucléaire et de la… …
89Rad — Radiation absorbed dose, a measure for a dose of ionizing radiation. * * * 1. The unit for the dose absorbed from ionizing radiation, equivalent to 100 ergs per gram of tissue; 100 r. = 1 Gy. 2. Symbol for radian. * * * radial artery catheter;… …
90Kerma (physics) — Kerma is the sum of the initial kinetic energies of all the charged particles liberated by uncharged ionizing radiation (i.e., indirectly ionizing radiation such as photons and neutrons) in a sample of matter, divided by the mass of the sample.… …
