EPJ Web of Conferences (Jan 2018)
Studies of fission fragment yields via high-resolution γ-ray spectroscopy
- Wilson J.N.,
- Lebois M.,
- Qi L.,
- Amador-Celdran P,
- Bleuel D.,
- Briz J.A.,
- Carroll R.,
- Catford W.,
- Witte H. De,
- Doherty D.T.,
- Eloirdi R.,
- Georgiev G.,
- Gottardo A.,
- Goasduff A.,
- Hadyñska-Klek K.,
- Hauschild K.,
- Hess H.,
- Ingeberg V.,
- Konstantinopoulos T.,
- Ljungvall J.,
- Lopez-Martens A.,
- Lorusso G.,
- Lozeva R.,
- Lutter R.,
- Marini P.,
- Matea I.,
- Materna T.,
- Mathieu L.,
- Oberstedt A.,
- Oberstedt S.,
- Panebianco S.,
- Podolyak Zs.,
- Porta A.,
- Regan P.H.,
- Reiter P.,
- Rezynkina K.,
- Rose S.J.,
- Sahin E.,
- Seidlitz M.,
- Serot O.,
- Shearman R.,
- Siebeck B.,
- Siem S.,
- Smith A.G.,
- Tveten G.M.,
- Verney D.,
- Warr N.,
- Zeiser F.,
- Zielinska M.
Affiliations
- Wilson J.N.
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Lebois M.
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Qi L.
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Amador-Celdran P
- European Commission, Joint Research Centre, Directorate G for Nuclear Safety and Security
- Bleuel D.
- Lawrence Livermore National Laboratory
- Briz J.A.
- Subatech/Ecole des Mines
- Carroll R.
- Department of Physics, University of Surrey
- Catford W.
- Department of Physics, University of Surrey
- Witte H. De
- Institute for Nuclear and Radiation Physics, KU Leuven
- Doherty D.T.
- Irfu, CEA, Université Paris Saclay
- Eloirdi R.
- European Commission, Joint Research Centre, Directorate G for Nuclear Safety and Security
- Georgiev G.
- CSNSM Orsay, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Gottardo A.
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Goasduff A.
- CSNSM Orsay, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Hadyñska-Klek K.
- INFN Laboratori Nazionali di Legnaro, Viale dell'Universita
- Hauschild K.
- CSNSM Orsay, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Hess H.
- Institut für Kernphysik
- Ingeberg V.
- University of Oslo, Department of Physics
- Konstantinopoulos T.
- CSNSM Orsay, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Ljungvall J.
- CSNSM Orsay, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Lopez-Martens A.
- CSNSM Orsay, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Lorusso G.
- National Physical Laboratory
- Lozeva R.
- CSNSM Orsay, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Lutter R.
- LMU München
- Marini P.
- CEA/DAM, DIF
- Matea I.
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Materna T.
- Irfu, CEA, Université Paris Saclay
- Mathieu L.
- CENBG Bordeaux, Chemin du Solarium
- Oberstedt A.
- Extreme Light Infrastructure - Nuclear Physics (ELI-NP)
- Oberstedt S.
- European Commission, Joint Research Centre, Directorate G for Nuclear Safety and Security
- Panebianco S.
- Irfu, CEA, Université Paris Saclay
- Podolyak Zs.
- Department of Physics, University of Surrey
- Porta A.
- Subatech/Ecole des Mines
- Regan P.H.
- Reiter P.
- Institut für Kernphysik
- Rezynkina K.
- Institute for Nuclear and Radiation Physics, KU Leuven
- Rose S.J.
- University of Oslo, Department of Physics
- Sahin E.
- University of Oslo, Department of Physics
- Seidlitz M.
- Institut für Kernphysik
- Serot O.
- CEA Cadarache
- Shearman R.
- Siebeck B.
- Institut für Kernphysik
- Siem S.
- University of Oslo, Department of Physics
- Smith A.G.
- University of Manchester, Dept. Of Physics
- Tveten G.M.
- University of Oslo, Department of Physics
- Verney D.
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Warr N.
- Institut für Kernphysik
- Zeiser F.
- University of Oslo, Department of Physics
- Zielinska M.
- Irfu, CEA, Université Paris Saclay
- DOI
- https://doi.org/10.1051/epjconf/201816900030
- Journal volume & issue
-
Vol. 169
p. 00030
Abstract
Precise spectroscopic information on the fast neutron induced fission of the 238U(n,f) reaction was recently gained using a new technique which involved coupling of the Miniball high resolution y-ray spectrometer and the LICORNE directional neutron source. The experiment allowed measurement of the isotopic fission yields for around 40 even-even nuclei at an incident neutron energy of around 2 MeV where yield data are very sparse. In addition spectroscopic information on very neutron-rich fission products was obtained. Results were compared to models, both the JEFF-3.1.1 data base and the GEF code, and large discrepancies for the S1 fission mode in the Sn/Mo isotope pair were discovered. This suggests that current models are overestimating the role played by spherical shell effects in fast neutron induced fission. In late 2017 and 2018 the nu-ball hybrid spectrometer will be constructed at the IPN Orsay to perform further experimental investigations with directional neutrons coupled to a powerful hybrid Ge/LaBr3 detector array. This will open up new possibilities for measurements of fission yields for fast-neutron-induced fission using the spectroscopic technique and will be complimentary to other methods being developed.
