Decay of Exotic Nuclei, D.J.Morrissey

Projectile fragmenation reactions create nuclei that are so exotic that they rapidly undergo beta-decay with the release of large amounts of energy.  Often the decay leads to the emission of neutrons or protons.  We have developed a system to detect beta-delayed neutrons and measure their time-of-flight over a one meter flight path. This provides a spectroscopic measuremnet of the emitted neutron and allows us to follow the decay of the exotic nuclei in some detail. We have studied a variety of low-Z neutron-rich nuclei with this technique. We have also collaborated with P.F. Mantica's group at the NSCL to study other beta-decaying unusual nuclei.

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