-
1 комптоновская томография
Русско-английский физический словарь > комптоновская томография
См. также в других словарях:
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
Scintillator — Scintillation crystal surrounded by various scintillation detector assemblies … Wikipedia
electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… … Universalium
High energy X-rays — or HEX rays are very hard X rays, with 80 keV 1000 keV typically one order of magnitude higher in energy than conventional X rays (and well into the gamma ray energies of over 120 keV). They are produced at modern synchrotron radiation sources… … Wikipedia
Image-guided radiation therapy — (IGRT) is the process of frequent two and three dimensional imaging, during a course of radiation treatment, used to direct radiation therapy utilizing the imaging coordinates of the actual radiation treatment plan. The patient is localized in… … Wikipedia
Effects of nuclear explosions — An American nuclear test. Nuclear weapons … Wikipedia
Positronium — (Ps) is a system consisting of an electron and its anti particle, a positron, bound together into an exotic atom . Being unstable, the two particles annihilate each other to produce two gamma ray photons after an average lifetime of 125 ps or… … Wikipedia
x-ray — /eks ray /, n. Also, x ray, X ray. 1. Physics. a. Often, x rays. a form of electromagnetic radiation, similar to light but of shorter wavelength and capable of penetrating solids and of ionizing gases. b. such radiation having wavelengths in the… … Universalium
Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… … Universalium
gamma ray — Physics. 1. a photon of penetrating electromagnetic radiation (gamma radiation) emitted from an atomic nucleus. 2. a photon emitted by an electron as a result of internal conversion. 3. electromagnetic radiation with wavelengths shorter than… … Universalium
Radiography — For medical radiography see: RadiologyRadiography is the use of X rays to view unseen or hard to image objects. The main diagnostic purposes of X rays are to see inside ones body, especially of the brain and fetus, where the bones can be viewed… … Wikipedia