Isotopic distribution and dependency to fission product kinetic energy for $^{241}$Pu thermal neutron-induced fission

S. Julien-Laferrière (1, 2) , G. Kessedjian (2) , O. Serot (1) , A. Chebboubi (1) , D. Bernard (1) , A. Blanc (3) , U. Köster (3) , O. Litaize (1) , T. Materna (4) , O. Meplan (2) , M. Rapala (4) , C. Sage (2)

1 CEA Cadarache
2 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
3 ILL - Institut Laue-Langevin
4 DPHN - Département de Physique Nucléaire (ex SPhN)

Nuclear fission yields data measurements for thermal neutron induced fission of 241Pu have been carried out at the ILL in Grenoble, using the Lohengrin mass spectrometer. The relative isotopic yields for the masses 137 up to 141 have been derived with the associated experimental covariance matrices. Moreover, from preliminary results for the masses 92, 138 and 139, a clear evolution over fission product kinetic energy of the isotopic total count rate is observed.

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

S. Julien-Laferrière, G. Kessedjian, O. Serot, A. Chebboubi, D. Bernard, et al.. Isotopic distribution and dependency to fission product kinetic energy for $^{241}$Pu thermal neutron-induced fission. 6th Workshop on Nuclear Fission and Spectroscopy of Neutron-Rich Nuclei, Mar 2017, Chamrousse, France. pp.02002, ⟨10.1051/epjconf/201819302002⟩. ⟨hal-01952172⟩