Cluster Radioactivity

  • D. N. Poenaru Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), P.O. Box MG-6, RO-077125 Bucharest-Magurele, Romania; Frankfurt Institute for Advanced Studies, Johann Wolfgang Goethe University, Ruth-Moufang-Straße 1, 60438 Frankfurt am Main, Germany
  • R. A. Gherghescu Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), P.O. Box MG-6, RO-077125 Bucharest-Magurele, Romania; Frankfurt Institute for Advanced Studies, Johann Wolfgang Goethe University, Ruth-Moufang-Straße 1, 60438 Frankfurt am Main, Germany
Keywords: Heavy-particle decay, Alpha decay, Lifetimes, Properties of nuclei with A ≥ 220

Abstract

Cluster radioactivity (spontaneous emission of heavy particles from nuclei) is presented from a theoretical point of view in good agreement with experimental results. After a brief historical account, we give details about the analytical super asymmetric fission (ASAF) model extensively used for predicting the half-lives of heavy and superheavy (Z ≥ 104) elements. For the already measured 26 cluster decays (from 14C to 32,34Si of parent nuclides with Z = 87-96) it is clear that cluster radioactivity is a rare phenomenon in the best case about 9 orders of magnitude weaker than the competing alpha decay. Then we show the theoretical possibility of a strong cluster decay compared to alpha decay for some superheavy nuclei with Z ≥ 122, e.g. 306122; 310-314122; 306-324124, and 311-323124.

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Published
2020-12-03
How to Cite
(1)
Poenaru, D. N.; Gherghescu, R. A. Cluster Radioactivity. J. Nucl. Phy. Mat. Sci. Rad. A. 2020, 8, 65-71.
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