alpha decay

(redirected from Alpha emission)
Also found in: Dictionary, Thesaurus, Encyclopedia.
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.
Mentioned in ?
References in periodicals archive ?
This was intended to confirm the massic alpha emission rate obtained from the LS spectrometry, but the large uncertainty on the [gamma]-ray spectrometry precludes much of a conclusion.
The n = 31 determinations of decay-corrected massic alpha emission rate [E.sub.[alpha]] of solution M at reference time 1200 EST, 01 December 2013 as a function of the measurement midpoint time T, in 2013 Julian Day.
The 31 mean values of the massic alpha emission rate [E.sub.[alpha]] for the master solution M used to prepare [sup.209]Po solution standard SRM 4326a, as represented in a three-part Fitzgerald plot (see Ref.
Each of the 31 mean determinations (Table 4) of the massic alpha emission rate [E.sub.[alpha]] is shown in terms of % differences from the grand mean and as a function of source series, including quench conditions; 2013 sampling date; LS counter used for the measurements (B or W).
As the two Voyager probes moved farther and farther from the Sun-from 1993 to 2003, they travelled between six and 13 billion kilometers (40 to 90 Astronomical Units) from the Sun-the glow of local Lyman alpha emissions in the vicinity of the probes has become easier to detect, growing 20 times more intense than if observed from Earth orbit.