tissue roentgen

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• Roentgen (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 …   Wikipedia

• x-rays — roentgen rays * * * pl. n. electromagnetic radiation of extremely short wavelength (beyond the ultraviolet), which pass through matter to varying degrees depending on its density. X rays are produced when high energy beams of electrons strike… …   Medical dictionary

• Equivalent dose — The equivalent absorbed radiation dose, usually shortened to equivalent dose, is a computed average measure of the radiation absorbed by a fixed mass of biological tissue, that attempts to account for the different biological damage potential of… …   Wikipedia

• plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… …   Universalium

• radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

• rep — 1) Roentgen equivalent physical, a unit of absorbed radiation approximately equivalent to one roentgen. 2) An abbreviation for repetition when referring to an exercise maneuver. 3) An abbreviation for representative of sales for a pharmaceutical… …   Medical dictionary

• Radiology — is the medical specialty directing medical imaging technologies to diagnose and treat diseases. Originally it was the aspect of medical science dealing with the medical use of electromagnetic energy emitted by X ray machines or other such… …   Wikipedia

• Gray (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… …   Wikipedia

• radiation measurement — ▪ technology Introduction       technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement.       The term ionizing radiation refers to those… …   Universalium

• diagnosis — /duy euhg noh sis/, n., pl. diagnoses / seez/. 1. Med. a. the process of determining by examination the nature and circumstances of a diseased condition. b. the decision reached from such an examination. Abbr.: Dx 2. Biol. scientific… …   Universalium

• Rad (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… …   Wikipedia