Abstract
The fission fragment yield distribution has been measured in the reaction in the mass region of to 150 using the Lohengrin recoil-mass spectrometer. Three independent experimental campaigns were performed, allowing a significant reduction of the uncertainties compared to evaluated nuclear data libraries. The long-standing discrepancy of around 10% for the relative yield of reported in JEF-2.2 and JEFF-3.1.1 data libraries is finally solved. Moreover, the measured mass distribution in thermal neutron-induced fission does not show any significant dip around the shell closure () as seen in heavy-ion fission data of (, ) and (, ) reactions. Lastly, comparisons between our experimental data and the predictions from Monte Carlo codes (gef and fifrelin) are presented and discussed.
3 More- Received 13 February 2017
- Revised 17 April 2017
DOI:https://doi.org/10.1103/PhysRevC.96.014608
©2017 American Physical Society