beta decay

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beta decay

n.
Radioactive decay in which a beta particle is emitted by an atomic nucleus.

beta decay

n
(General Physics) the radioactive transformation of an atomic nucleus accompanying the emission of an electron. It involves unit change of atomic number but none in mass number. Also called: beta transformation or beta process

be′ta decay`


n.
a radioactive process in which a beta particle is emitted from the nucleus of an atom.
[1930–35]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.beta decay - radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particlebeta decay - radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle
radioactive decay, disintegration, decay - the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
References in periodicals archive ?
Analysis of Beta-Decay Rates for Ag-108, Ba-133, Eu-152, Eu-154, Kr-85, Ra-226, and Sr-90, Measured at the Physikalisch-Technische Bundesanstalt from 1990 to 1996.
Double-beta decay is when beta-decay happens twice - two neutrons in an element like germanium decay simultaneously into two electrons and two antineutrinos (or neutrinos).
At Los Alamos scientists have carried out detailed calculations of the specific, individual beta-decay properties of thousands of nuclides, all with different decay properties, and created databases with these calculated properties.
Ito, California Institute of Technology 9:30-9:45 Project of neutron beta-decay A-asymmetry measurement with accuracy on the level [10.
The theory was useful and helpful, and that neutrinos are given off as part of the process of Beta decay has been more than adequately confirmed by subsequent observations and experiments (though the particle emitted with the electron in the process of Beta-decay is now called an anti-neutrino, and it is considered an open scientific question whether anti-neutrinos are identical to neutrinos.
However, this tail end of the tritium beta-decay spectrum has a puzzling feature.