0000000000620325

AUTHOR

R. Du Rietz

showing 3 related works from this author

Study of fusion reactions forming Cf nuclei

2013

The formation of a compound nucleus in different projectile and target combinations is a powerful method for investigating the fusion process. Recently, the dominance of quasi-fission over fusion-fission has been inferred for 34 S+208 Pb in comparison to 36 S+206 Pb; both reactions lead to the compound nucleus 242 Cf* .The mass and angle distributions of the fission fragments from these reactions were studied in order to further investigate the presence of quasi-fission.

FusionFissionProjectilePhysicsQC1-999Nuclear TheoryEngineering physicsCrystallographymedicine.anatomical_structuremedicinePhysics::Atomic and Molecular ClustersNuclear fusionNuclear ExperimentNucleusEPJ Web of Conferences
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Experimental study of the quasifission, fusion-fission, and de-excitation of Cf compound nuclei

2015

Background: The fusion-evaporation reaction at energies around the Coulomb barrier is presently the only way to produce the heaviest elements. However, formation of evaporation residues is strongly hindered due to the competing fusion-fission and quasifission processes. Presently, a full understanding of these processes and their relationships has not been reached.Purpose: This work aims to use new fission measurements and existing evaporation residue and fission excitation function data for reactions forming Cf isotopes to investigate the dependence of the quasifission probability and characteristics on the identities of the two colliding nuclei in heavy element formation reactions.Method:…

Excitation functionPhysicsNuclear and High Energy Physics010308 nuclear & particles physicsFissionCoulomb barrierFusion fission01 natural sciences0103 physical sciencesAtomic physicsDetector arrayHeavy elementNuclear Experiment010306 general physicsExcitationPhysical Review C
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Quasifission in heavy and superheavy element formation reactions

2016

Superheavy elements are created in the laboratory by the fusion of two heavy nuclei. The large Coulomb repulsion that makes superheavy elements decay also makes the fusion process that forms them very unlikely. Instead, after sticking together for a short time, the two nuclei usually come apart, in a process called quasifission. Mass-angle distributions give the most direct information on the characteristics and time scales of quasifission. A systematic study of carefully chosen mass-angle distributions has provided information on the global trends of quasifission. Large deviations from these systematics reveal the major role played by the nuclear structure of the two colliding nuclei in de…

Physics010308 nuclear & particles physicsPhysicsQC1-999Nuclear TheoryNuclear structureSuperheavy Elements01 natural sciencesCoulomb repulsionNuclear physicsChemistryInorganic & Nuclear0103 physical sciencesNaturvetenskapNuclear010306 general physicsNatural SciencesNuclear ExperimentEPJ Web of Conferences
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