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|Title:||Ternary Particle Emission in Spontaneous Fission of 250Cf and 252Cf and in Neutron Induced Fission of 249Cf and 251Cf|
|Authors:||VERMOTE S.; WAGEMANS Cyriel; SEROT O.; HEYSE J.; VAN GILS J.; SOLDNER T.; GELTENBORT P.; ALMAHAMID I.; TIAN G.; RAO L.|
|Citation:||NUCLEAR PHYSICS A vol. 837 no. 3-4 p. 176-194|
|Publisher:||ELSEVIER SCIENCE BV|
|Type:||Articles in Journals|
|Abstract:||The emission probabilities and the energy distributions of tritons, a and 6He particles emitted in the spontaneous ternary fission (zero excitation energy) of 250Cf and 252Cf and in the cold neutron induced fission (excitation energy ¿ 6.5 MeV) of 249Cf and 251Cf are determined. The particle identification was done with suited ¿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 250Cf and 252Cf are obtained at zero and at about 6.5 MeV excitation energies. While the triton emission probability is hardly influenced by the excitation energy, the 4He and 6He emission probability in spontaneous fission is higher than for neutron induced fission. This can be explained by the strong influence of the cluster preformation probability on the ternary particle emission probability.|
|JRC Institute:||Institute for Reference Materials and Measurements|
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