proton radioactivity

proton radioactivity

[¦prō‚tän ‚rād·ē·ō·ak′tiv·əd·ē]
(nuclear physics)
A process by which an unstable nucleus spontaneously decays by the emission of a proton.
References in periodicals archive ?
It's a new example of proton radioactivity and, more than that, an excellent example of the ability to deduce something about the shape of a nucleus from the properties of the decay," says Richard F.
In proton radioactivity, a proton deep inside the nucleus penetrates an outer surface shell of protons.
During the last few years, Davids and his colleagues have been smashing stable nuclei together to create unstable, proton-rich nuclei and looking for evidence of proton radioactivity among these short-lived isotopes.
Recent improvements in detector sensitivity have enabled the researchers to detect proton radioactivity among certain unstable isotopes of elements containing between 55 and 69 protons.