decay product

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decay product

An isotope formed during the decay of a radioactive material. Synonym: daughter product
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The combined effect of these two factors creates a non-exponential feature, the so-called shoulder in the time spectra of positron annihilation in inert gases (delayed [[gamma].sub.n] - [[gamma].sub.a]-coincidences; where [[gamma].sub.n] is the nuclear gamma-quantum of the daughter nucleus after the [[beta].sup.+]-decay of [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII])/"start", [[gamma].sub.a] is one of the annihilation gamma-quanta/"stop").
In note [10], we have drawn attention to the fact that the start in the lifetime method is marked by the detection of the nuclear [[gamma].sub.n]-quantum from transition of the excited daughter nucleus of [sup.22*]Ne to the ground state of [sup.22]Ne ([MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII]).
The next event during meiosis results in the actual reduction in the number of chromosomes each daughter nucleus receives.