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alpha decay

   Also found in: Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
alpha decay
n.
The radioactive decay of an atomic nucleus by emission of an alpha particle.
alpha decay
The radioactive decay of an atomic nucleus by emission of an alpha particle (two protons bound to two neutrons). When an element undergoes alpha decay, its atomic number decreases by two.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.alpha decay - radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle
radioactive decay, disintegration, decay - the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation


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Their blood level initially decays relatively rapidly, representing the alpha decay period (Flesch-Janys et al.
Biologic monitoring of exposure to environmental chemicals throughout ... by Needham, Larry L. / Environmental Health Perspectives
During a routine check for contamination in their bolometers, which happen to be built around crystals containing bismuth, the team noticed an unexpected alpha decay not listed in any reference tables.
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Some of the unique VIPER(TM) algorithms available through EARN(TM) include VIEESP, a statistical prediction algorithm which employs a short-term, predictive model that formulates expectations of the price and volume of a stock in the next one to three minutes, and INLINE, a mode which works best for stocks with high alpha decay, that participates at a higher percentage of non-block volume by being less patient for strong trade signals.
ESP and Vie Securities, LLC, Complete Electronic Algorithm Routing ... by Business Wire
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