positron emission — pozitroninis spinduliavimas statusas T sritis fizika atitikmenys: angl. positron emission; positron radiation vok. Positronenemission, f; Positronenstrahlung, f rus. испускание позитронов, n; позитронное излучение, n pranc. émission des positrons … Fizikos terminų žodynas
radiation des positrons — pozitroninis spinduliavimas statusas T sritis fizika atitikmenys: angl. positron emission; positron radiation vok. Positronenemission, f; Positronenstrahlung, f rus. испускание позитронов, n; позитронное излучение, n pranc. émission des positrons … Fizikos terminų žodynas
Positron emission tomography — (PET) is a nuclear medicine imaging technique which produces a three dimensional image or map of functional processes in the body. The system detects pairs of gamma rays emitted indirectly by a positron emitting radionuclide (tracer), which is… … Wikipedia
Radiation therapy — Radiation (medicine) redirects here. It is not to be confused with Radiation (pain) or Radiology. Radiation therapy Intervention ICD 10 PCS D ICD 9 CM … Wikipedia
Radiation protection — Radiation protection, sometimes known as radiological protection, is the science of protecting people and the environment from the harmful effects of ionizing radiation, which includes both particle radiation and high energy electromagnetic… … Wikipedia
Radiation — Radiation, as in physics, is energy in the form of waves or moving subatomic particles emitted by an atom or other body as it changes from a higher energy state to a lower energy state. Radiation can be classified as ionizing or non ionizing… … Wikipedia
positron-emission tomography — n tomography in which an in vivo, noninvasive, cross sectional image of regional metabolism is obtained by a usu. color coded cathode ray tube representation of the distribution of gamma radiation given off in the collision of electrons in cells… … Medical 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
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
radiation — n. energy in the form of waves or particles, especially electromagnetic radiation, which includes (in order of increasing energy) radio waves, microwaves, infrared rays (radiant heat), visible light, ultraviolet rays, X rays, and gamma rays. The… … The new mediacal dictionary
