radioactive decay

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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 ?
Tsutomu Ohtsuki of Tohoku University in Sendai and his colleagues recorded a nearly 1 percent hike in the decay rate of beryllium-7 atoms that were each trapped inside a spherical shell-like, 60-carbon molecule known as a buckminsterfullerene, or buckyball.
2]-in-[alpha])-corrections in positronium-hyperfine splitting and decay rate.
Early reports indicate that over the past 45 days, the change of curve has maintained good consistency with a very little decay rate.
The team said that they chose Bismuth-213 because of several characteristics, including a half-life, or decay rate, of 46 minutes.
238) dealt with the alteration of the nuclear decay rate of beryllium-7.
1, which shows the yield for a 10 min run vs TOF bin for an assumed decay rate of 100 Hz for a 17 m long flight path.
One is statistical method, where we will find the dung decay rate, and find out the probable number of elephants which can be here, and the other method is the direct sighting method.
The researchers determine the coral ages by radiocarbon dating, based on the known decay rate for carbon-14.
58 (13), 1328; Precision measurement of the orthopositronium decay rate using the gas technique.
For our discussion, the relevant terms in the formula for the decay rate W for a semileptonic transition from an oriented sample of nuclei or particles with vector polarization J can be written as [1]:
32 memu/cm2, and an amplitude thermal decay rate of less than 1% per decade of time at 543 KFCI, which is considered to be stable against the superparamagnetic effect.
The company's flagship offering, Jigsaw Data Fusion, was launched in April 2009 and quickly gained traction by solving the problem of stale B2B data in CRM systems: on average, 80% of records in most CRM systems are incorrect or incomplete, while incurring a 30% per year decay rate.