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Updated: Jul 29, 2026

A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space
Published on: February 1, 2016
Theory of two-proton radioactivity with application to 19Mg and 48Ni
1Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom and Russian Research Center "The Kurchatov Institute, " 123182 Moscow, Russia.
Abstract:
We study the emission of two protons from nuclei where this is the only decay channel. A three-body model is developed. We compare the "diproton" model with the three-body calculations. We present exploratory studies of the 19Mg and 48Ni ground states, which are good candidates for two-proton radioactivity. The two-proton width for the 17Ne 3/2(-) state is also estimated. Our calculations give substantially lower values for the width than predicted by the diproton model, but larger than from direct decay to the continuum.
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