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Ternary alpha and triton emission in the spontaneous fission of {244}Cm, {246}Cm and {248}Cm and in the neutron induced fission of {243}Cm, {245}Cm and {247}Cm

Funded under: FP7-EURATOM

Abstract

The emission probabilities and the energy distributions of tritons and a particles emitted in the spontaneous ternary fission (zero excitation energy) of {244}Cm, {246}Cm and {248}Cm and in the cold neutron induced fission (excitation energy �6.5 MeV) of{243}Cm, {245}Cm and {247}Cm are determined. The particle identification was done with suited Difference E-E telescope detectors, at the IRMM (Geel, Belgium) for the spontaneous fission and at the ILL (Grenoble, France) for the neutron induced fission measurements. Hence particle emission characteristics of the fissioning systems {244}Cm, {246}Cm and {248}Cm are obtained at zero excitation energy and at an excitation energy around 6.5 MeV. Whilst the triton emission probability is hardly influenced by the excitation energy, the {4}He emission probability in spontaneous fission is about 20% higher than for neutron induced fission. This could be explained by the influence of the cluster preformation probability on the ternary alpha emission.

Additional information

Authors: VERMOTE S, Department of Subatomic and Radiation Physics, University of Gent, Gent (BE);WAGEMANS C, Department of Subatomic and Radiation Physics, University of Gent, Gent (BE);SEROT O, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);HEYSE J, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE);VAN GILS J, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE);SOLDNER T, Institut Laue-Langevin, Grenoble (FR);GELTENBORT P, Institut Laue-Langevin, Grenoble (FR)
Bibliographic Reference: An article published in: Nuclear Physics A, Volume 806, Issues 1-4 (2008), 14 pp.
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/10.1016/j.nuclphysa.2008.03.006
Record Number: 200910163 / Last updated on: 2009-01-23
Category: PUBLICATION
Original language: en
Available languages: en
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