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Nachrichten, Termine, Experten
Nachrichten, Termine, Experten
Abb. 1. Bindungsenergie pro Nukleon der natürlich vorkommenden Nuklide in Abhängigkeit von der Kernmasse. Das Energieminimum ist im Bereich des stabilsten Eisen-Isotops 56Fe zu finden. Leichte Kerne können unter Energiegewinn fusionieren, während bei schweren Kerne Spaltung oder Alpha-Zerfall auftreten kann. Oberhalb einer Massenzahl von etwa 30 wird die Bindungsenergie durch das Tröpfchenmodell mit der Weizsäcker’schen Massenformel (grüne Kurve) gut beschrieben (Genauigkeit besser als 1%).
Grafik: MPI für Kernphysik
(23 KB, 1344 x 1008 pixels)
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