Back to Search
Start Over
Status of fission fragment observables measured with the LOHENGRIN spectrometer
- Source :
- EPJ Web of Conferences, Vol 211, p 04004 (2019), EPJ Web Conf., 5th International Workshop On Nuclear Data Evaluation for Reactor Applications, 5th International Workshop On Nuclear Data Evaluation for Reactor Applications, Oct 2018, Aix-en-Provence, France. pp.04004, ⟨10.1051/epjconf/201921104004⟩, 'EPJ Web of Conferences ', vol: 211, pages: 04004-1-04004-8 (2019)
- Publication Year :
- 2019
- Publisher :
- EDP Sciences, 2019.
-
Abstract
- Nuclear fission yields are key parameters to evaluate reactor physics observables, such as fuel inventory, decay heat, spent fuel radiotoxicity, criticality but also for understanding the fission process. Despite a significant effort allocated to measure fission yields during the last decades, the recent evaluated libraries still need improvements in particular in the description of the uncertainties with the associated correlations. Additional kinds of measurements provide complementary information in order to test the models used in the nuclear data evaluation. Moreover, some discrepancies between these libraries must be explained. A common effort by the CEA, the LPSC and the ILL aims at tackling these issues by providing precise measurement of isotopic and isobaric fission yields with the related variance-covariance matrices. Nevertheless, the experimental program represents itself a large range of observables requested by the evaluations: isotopic yields, nuclear charge polarization, odd-even effect, isomeric ratio and their dependency with fission fragment kinetic energy as a probe of the nuclear de-excitation path in the (E*, Jπ) representation. Measurements for thermal neutron induced fission of 241Pu have been carried out at the Institut Laue Langevin using the LOHENGRIN mass spectrometer. Experimental program, observables reachable, results and comparison to model calculations are shown.
- Subjects :
- Physics
[PHYS]Physics [physics]
Spectrometer
010308 nuclear & particles physics
Fission
QC1-999
Nuclear Theory
Nuclear data
01 natural sciences
Spent nuclear fuel
Neutron temperature
Nuclear physics
Criticality
Nuclear fission
0103 physical sciences
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Decay heat
010306 general physics
Nuclear Experiment
Subjects
Details
- Language :
- English
- Volume :
- 211
- Database :
- OpenAIRE
- Journal :
- EPJ Web of Conferences
- Accession number :
- edsair.doi.dedup.....6babb5d0c3b84b5547f44b5f5d3de3f9
- Full Text :
- https://doi.org/10.1051/epjconf/201921104004⟩