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Conference papers
Theoretical investigation of fission fragment kinetic energy distributions in the symmetric mass region for 233 U( n th , f )
A. Chebboubi
1, 2
O. Serot
2
G. Kessedjian
1
O. Litaize
2
A. Blanc
3
D. Bernard
2
H. Faust
3
S. Julien-Laferrière
2, 1
U. Köster
3
A. Létourneau
4
T. Materna
4
O. Méplan
1
P. Mutti
3
M. Rapala
4
C. Sage
1
A. Chebboubi 1, 2
Mail :
Author IdHAL : abdelaziz-chebboubi ORCID : https://orcid.org/0000-0002-3933-584X
O. Serot 2
Mail :
Author IdHAL : olivier-serot ORCID : https://orcid.org/0000-0003-1077-8759
G. Kessedjian 1
Author
O. Litaize 2
Author
1
LPSC - Laboratoire de Physique Subatomique et de Cosmologie (53 avenue des Martyrs - 38026 Grenoble Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5821 (France)
- UJF - Université Joseph Fourier - Grenoble 1 (BP 53 - 38041 Grenoble Cedex 9 - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- Institut Polytechnique de Grenoble - Grenoble Institute of Technology (France)
- UGA - Université Grenoble Alpes (CS 40700 - 38058 Grenoble cedex - France)
- Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology (46 avenue Félix Viallet 38031 Grenoble Cedex 1 - France)
2
CEA Cadarache (13108 Saint-Paul-les-Durance Cedex - France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
3
ILL - Institut Laue-Langevin (6, rue Jules Horowitz BP 156 38042 Grenoble Cedex 9 - France)
- ILL (France)
4
DPHN - Département de Physique Nucléaire (ex SPhN) (France)
- IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers : DRF/IRFU/DPHN (CEA Saclay
F-91191 Gif sur Yvette cedex - France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/IRFU (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- Université Paris-Saclay (Espace Technologique, Bat. Discovery - RD 128 - 2e ét., 91190 Saint-Aubin - France)
Abstract : Fission yields are essential for nuclear reactor studies (decay heat, fuel inventory…) and constitute also one of the main observables needed to improve our understanding of the fission process. The symmetric mass region is of particular interest due to various intriguing properties of the fission fragments already reported in the literature : inversion of the nuclear charge polarization, large width of the fission fragment kinetic energy distribution, strong change of the prompt neutron multiplicity, etc. Recently, measurements of fission yields and kinetic energy distributions in the symmetric mass region were achieved at the LOHENGRIN mass spectrometer of the Institut Laue-Langevin (ILL). This experimental work is challenging due to the low counting rate and the appearance of contaminant masses, leading to pronounced components in the fission fragment kinetic energy distribution. Despite removing the undesirable contributions, the fission fragment kinetic energy distributions still show two components, indicating that the fission process could be modal. To go further and better characterize these components a comparison between our experimental data and Monte Carlo calculations (FIFRELIN code) simulating the de-excitation of the fission fragments for different fission channels will be presented and discussed.
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http://hal.in2p3.fr/in2p3-01630712
Contributor : Emmanuelle Vernay <>
Submitted on : Wednesday, November 8, 2017 - 9:00:12 AM
Last modification on : Tuesday, April 7, 2020 - 11:04:05 AM
Contributor : Emmanuelle Vernay <>
Submitted on : Wednesday, November 8, 2017 - 9:00:12 AM
Last modification on : Tuesday, April 7, 2020 - 11:04:05 AM
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- HAL Id : in2p3-01630712, version 1
- DOI : 10.1051/epjconf/201714604063
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Citation
A. Chebboubi, O. Serot, G. Kessedjian, O. Litaize, A. Blanc, et al.. Theoretical investigation of fission fragment kinetic energy distributions in the symmetric mass region for 233 U( n th , f ). International Conference on Nuclear Data for Science and Technology (ND2016), Sep 2016, Bruges, Belgium. pp.04063, ⟨10.1051/epjconf/201714604063⟩. ⟨in2p3-01630712⟩
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