secondary gamma source

secondary gamma source
источник вторичного гамма-излучения

English-Russian small dictionary of medicine. 2015.

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  • Gamma-ray astronomy — is the astronomical study of the cosmos with gamma rays. Early history Long before experiments could detect gamma rays emitted by cosmic sources, scientists had known that the universe should be producing these photons. Work by Eugene Feenberg… …   Wikipedia

  • Gamma ray — Gamma rays (denoted as gamma;) are a form of electromagnetic radiation or light emission of frequencies produced by sub atomic particle interactions, such as electron positron annihilation or radioactive decay. Gamma rays are generally… …   Wikipedia

  • Gamma Cephei — Starbox begin name = Gamma CepheiStarbox observe epoch = J2000.0 constell=Cepheus ra = RA|23|39|20.8 dec = DEC|+77|37|56 appmag v = 3.22Starbox character 2s component1 = Gamma Cephei A class1 = K1IVe r i1 = v r1 = b v1 = 1.03 u b1 = 0.94… …   Wikipedia

  • Formation evaluation gamma ray — In the field of formation evaluation, gamma ray log records natural radioactivity emission of formation. Measurement of natural emission of gamma rays in oil and gas wells are particularly helpful because shales and sandstones typically have… …   Wikipedia

  • Startup neutron source — RBMK reactor control rod positions at the moment of the Chernobyl disaster; blue=startup neutron sources (12), yellow=shortened control rods from the reactor bottom (32), grey=pressure tubes (1661), green=control rods (167), red=automatic control …   Wikipedia

  • Unsealed source radiotherapy — relates to the use of soluble forms of radioactive substances which are administered to the body by injection or ingestion. Such substances are typically used for their biological properties, which are similar to their non radioactive parent… …   Wikipedia

  • 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

  • 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

  • telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …   Universalium

  • 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


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