radioactive decay

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Related to Decay mode: Nuclear decay

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 ?
The decay mode data used in the gamma ray spectroscopic analysis of the radioisotopes investigated were taken from Ref.
The time scale at which the slow decay mode occurs in PAN 6 solution with DMF as solvent is about 1 order of magnitude faster than in DMAc as solvent, suggesting that in comparison to DMAc, DMF is a better solvent for PAN to avoid larger polymer aggregation.
The current decay mode is selected after determining the voltage level at PFD input, in case VPFD voltage is greater than 0.
We know exactly what signal we are looking for in our data, and we see strong indications of the production and decay of Higgs bosons in a crucial decay mode with a pair of bottom quarks, which is difficult to observe at the LHC.
We describe the way to find events containing B-mesons among many background events for the case of a typical decay mode, [B.
Because the two accelerators hunt for the Higgs in different ways--the Tevatron would detect the proposed particle's most common decay products, a bottom quark and its antiparticle, while the Large Hadron Collider would record a rarer decay mode that produces two photons--the searches are not only competitive but complementary.
The driver board contains a fixed frequency PWM current control with automatic selection of fast and slow decay mode as well as a built-in ramp generator for autonomous positioning and speed control.
Results of the first experiment to search for the radiative decay mode of the free neutron are reported.
The system adds a secondary decay mode to measure the mobility of the charge in the atmosphere during the test.
These predictions show that the radiative decay mode of the neutron, while a rare process, should be observable in the laboratory.