medical roentgen equivalent

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• Roentgen equivalent man — Named after Wilhelm Röntgen (German scientist, 1845 1923), the roentgen equivalent in man (or mammal[1]) or rem (symbol rem) is a unit of radiation dose equivalent. It is the product of the absorbed dose in rads and a weighting factor, WR, which… …   Wikipedia

• 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

• Röntgen equivalent man — The röntgen (roentgen) equivalent in man or rem (symbol rem) is a unit of radiation dose. It is the product of the absorbed dose in röntgens (R) and the biological efficiency of the radiation. More precisely, assuming a radiation weighting factor …   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

• Acute radiation syndrome — Classification and external resources A Japanese girl recovering from the effects of radiation sickness ICD 10 T …   Wikipedia

• Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …   Wikipedia

• REM — Removal (Medical » Physiology) Remarks (Computing » File Extensions) *** Rapid Eye Movement (Medical » Physiology) *** Rapid Eye Movement (Medical » Laboratory) * Roentgen Equivalent Man (Governmental » US Government) * Real Estate Magazine… …   Abbreviations dictionary

• Naturally occurring radioactive material — Naturally Occurring Radioactive Materials (NORM) and Technologically Enhanced Naturally Occurring Radioactive Materials (TENORM) consist of materials, usually industrial wastes or by products enriched with radioactive elements found in the… …   Wikipedia

• REP — Representative (Governmental » Military) *** Reply (Governmental » Military) ** Repeat (Governmental » Military) ** Repeat (Computing » Assembly) ** Repeat (Community » Educational) * Repetitions (Community » Sports) * Repulse (Governmental »… …   Abbreviations dictionary

• 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

• X-ray — [ 22 December 1895 and presented to Professor Ludwig Zehnder of the Physik Institut, University of Freiburg, on 1 January 1896. The dark oval on the third finger is a shadow produced by her ring. [cite book last = Kevles first =Bettyann Holtzmann …   Wikipedia