radioactive decay


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Related to radioactive decay: alpha decay, half life, radioactivity

radioactive decay

n.
1. Spontaneous disintegration of a radionuclide with the emission of energetic particles or radiation, such as alpha or beta particles or gamma rays.
2. An instance of such disintegration.

radioactive decay

n
(Nuclear Physics) disintegration of a nucleus that occurs spontaneously or as a result of electron capture. One or more different nuclei are formed and usually particles and gamma rays are emitted. Sometimes shortened to: decay Also called: disintegration

ra·di·o·ac·tive decay

(rā′dē-ō-ăk′tĭv)
The spontaneous breakdown of a radioactive nucleus into a lighter nucleus. Radioactive decay causes the release of radiation in the form of alpha particles, beta particles, or gamma rays. The end result of radioactive decay is the creation of a stable atomic nucleus.

radioactive decay

The decrease in the radiation intensity of any radioactive material with respect to time.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.radioactive decay - the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
alpha decay - radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle
beta decay - radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle
nuclear reaction - (physics) a process that alters the energy or structure or composition of atomic nuclei
Translations
décroissance radioactive
radioaktivt sönderfall
References in periodicals archive ?
Lot 2: Radiological Monitoring of Wastewater Leaving the Establishment With Effluent Analysis of the Radioactive Decay Tanks
The fuel is highly radioactive and continues to produce a large amount of heat through radioactive decay, called decay heat, after its removal.
The heat could come from radioactive decay or be left over from when Ceres formed.
Like carbon dating, uranium/lead dating uses the radioactive decay of a naturally-occuring element, in this case uranium-238.
This will identify it by using periodogram analysis that depicts the periodicity in the radioactive decay of the given sample of Americium-241.
The geothermal energy of the Earth's crust originates from the original formation of the planet and from radioactive decay of materials.
Using models to account for radioactive decay and ingrowth (increasing concentrations of decay products), the researchers estimated how the total radioactivity concentration of the produced fluids would change in the foreseeable future.
Atoms of element 117 were separated from huge numbers of other nuclear reaction products in the TransActinide Separator and Chemistry Apparatus (TASCA) and were identified through their radioactive decay.
It is released by the radioactive decay of potassium in rocks.
Ocular and radiation oncologists from the US, Argentina, and Sweden address the fundamentals of radiation and radioactive decay, the mechanism of tumor cell damage, tissue tolerance, and radiation and treatment parameters; advanced techniques for intensity modulated radiotherapy, stereotactic radiotherapy, and heavy ion therapy; and brachytherapy for the treatment of intraocular tumors.
The Harvard team gathered its evidence by analyzing an afterglow that occurred when the heavy metals emitted underwent radioactive decay.