scintillation counter unit

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• Scintillation counter — A scintillation counter measures ionizing radiation. The sensor, called a scintillator, consists of a transparent crystal, usually phosphor, plastic (usually containing anthracene), or organic liquid (see liquid scintillation counting) that… …   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

• X-ray fluorescence — (XRF) is the emission of characteristic secondary (or fluorescent) X rays from a material that has been excited by bombarding with high energy X rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis,… …   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

• 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

• Uranium mining — The Ranger Uranium Mine in Australia …   Wikipedia

• Ionizing radiation units — Radiation Measurement Units International System (SI) Activity of an isotope or material conventional unit: 1 curie = 37 billion disintegrations per second. SI unit: 1 becquerel = 1 disintegration per secondconversions1 curie (Ci) = 37… …   Wikipedia

• Measuring instrument — Captain Nemo and Professor Aronnax contemplating measuring instruments in Twenty Thousand Leagues Under the Sea …   Wikipedia

• List of crimes involving radioactive substances — This is a list of criminal (or arguably, allegedly, or potentially criminal) acts involving radioactive substances. Inclusion in this list does not necessarily imply that anyone involved was guilty of a crime. Contents 1 Use of alpha emitters for …   Wikipedia

• Enzyme assay — Beckman DU640 UV/Vis spectrophotometer. Enzyme assays are laboratory methods for measuring enzymatic activity. They are vital for the study of enzyme kinetics and enzyme inhibition. Contents …   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