alpha decay

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Related to Alpha emission: gamma emission, Beta emission

alpha decay

High-energy (i.e., in the million-electron-volt range) radioactive decay products caused by the emission of alpha particles, which themselves are products of a disintegrating nucleus.
References in periodicals archive ?
Nussbaum makes three points, namely that on the basis of the "source term" for the Chernobyl accident population, doses are underestimated by a factor up to 26, that Chernobyl dose estimates ignore exposure to alpha emissions, and that excess perinatal mortality and morbidity have been widely observed outside the main contaminated regions.
The new K&S alloy, LF-2, demonstrated alpha emissions well below the detection limits of existing measuring equipment and also exhibited higher reliability and a significant improvement in electromigration.
The measurements are from Voyager's ultraviolet spectrometer, or UVS, and include readings of what are called Lyman alpha emissions, given off by hydrogen atoms such as those released from water.