gamma-radiation counter

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• Radiation poisoning — Radiation poisoning, also called radiation sickness or a creeping dose , is a form of damage to organ tissue due to excessive exposure to ionizing radiation. The term is generally used to refer to acute problems caused by a large dosage of… …   Wikipedia

• Radiation hormesis — (also called Radiation homeostasis) is the hypothesis that chronic low doses of ionizing radiation are beneficial, stimulating repair mechanisms that protect against disease.Cite journal doi = 10.1038/421691a issn = 0028 0836 volume = 421 issue …   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

• 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

• 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

• Gamma ray spectrometer — A Gamma Ray Spectrometer, or (GRS), is an instrument for measuring the distribution (or spectrum see figure) of the intensity of gamma radiation versus the energy of each photon. Gamma rays are electromagnetic radiation at the short wavelength,… …   Wikipedia

• Gamma counter — A Gamma Counter is a machine to measure gamma radiation emitted by a radionuclide. Up to 300 samples are placed in sealed vials or test tubes, and move along a serpentine track on a horizontal plain. One at a time, they move down inside a… …   Wikipedia

• Gamma spectroscopy — The gamma ray spectrum of natural uranium, showing about a dozen discrete lines superimposed on a smooth continuum, allows the identification the nuclides 226Ra, 214Pb, and 214Bi of the uranium decay chain. Gamma ray spectroscopy is the… …   Wikipedia

• radiation — noun ADJECTIVE ▪ background ▪ low level ▪ damaging, harmful ▪ electromagnetic, gravitational, microwave, n …   Collocations dictionary

• counter — A device that counts, usually scintillations. automated differential leukocyte c. an instrument using digital imaging or cytochemical techniques to differentiate leukocytes. electronic cell c. an automatic blood cell c. in which cells passing… …   Medical dictionary

• Geiger counter — Infobox Laboratory equipment name = Geiger counter caption = A modern geiger counter acronym = other names = Geiger Müller counter uses = Particle detector inventor = Hans Geiger manufacturer = model = related = Geiger Müller tubeA Geiger counter …   Wikipedia