beta decay

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Related to Beta emission: Electron capture, gamma emission

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 ?
has just completed installation of helium isotope mass spectroscopy and beta emission analysis gear in its twinned engineering labs in Los Alamos, New Mexico, and Foster City, California.
Even as Caldicott discusses the medical effects of radioactive noble gas emissions, she misstates that these isotopes are gamma emitters instead of the less hazardous beta emissions.