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Fission experiments with secondary beams |
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| Authors: | J Benlliure S Steinhäuser C Böckstiegel A Grewe H-G Clerc A heinz M de Jong A R Junghans J Müller K-H Schmidt M Pfützner |
| Affiliation: | 1. Gesellschaft für Schwerionenforschung m. b. H., Planckstrasse 1, 64291, Darmstadt, Germany 2. Institut für Kernphysik, Technische Universit?t Darmstadt, Schlossgartenstrasse 9, 64289, Darmstadt, Germany 3. Institute of Experimental Physics, University of Warsaw, Ul Hoza 69, 00-381, Warszawa, Poland |
| Abstract: | Nuclear fission from excitation energies around 11 MeV was studied at GSI, Darmstadt for 76 neutron-deficient actinides and pre-actinides by use of relativistic secondary beams. The characteristics of multimodal fission of nuclei around 226Th are systematically investigated and related to the influence of shell effects on the potential-energy and on the level density between saddle point and scission. A systematic view on the large number of elemental yields measured gave rise to a new interpretation of the enhanced production of even elements in nuclear fission and allowed for a new understanding of pair breaking in fission. |
| Keywords: | Nuclear reactions radioactive beams nuclear fission shell effects |
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