7th Workshop on Nuclear Fission and Spectroscopy of Neutron-Rich Nuclei

Session

session 12 (Chair: A. Setaro)

session_12

12 Mar 2026, 10:35

Salle Totem, Le Bachat, Chamrousse, France

84. Shape isomerism in uranium isotopes

Stephan Oberstedt (European Commission)

12/03/2026, 10:35

The unexpected observation of a metastable spontaneously fissioning state
in 242Am put in question the common knowledge of the fission barrier. The inability of the available fission models back then to explain the observed decay mode, based on a single-humped barrier, led to the consideration of shell effects modulating the liquid-drop energy as a function of deformation. In 1967,...

26. Fission Yield Analysis of Neutron-Induced Fission on Th-232

Shiyu Liu (IJCLab)

12/03/2026, 11:00

Thorium-based molten salt reactors have recently attracted increasing interest as one of the promising Generation-IV reactor concepts and as a potentially safer alternative to Uranium-fuelled systems. However, the fission properties of Thorium are still insufficiently understood, particularly due to the limited availability of experimental fission yield data. In this work, we analyze γ-ray...

25. Results on 235U(nth,f) isotopic fission yields using prompt and delayed gamma rays at the FIPPS spectrometer of the ILL

Thomas Materna (IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France)

12/03/2026, 11:15

Although nuclear fission has been known and studied for more than 80 years, it remains a very active field of research. A deeper understanding of the fission process can be achieved by investigating the prompt and delayed gamma-ray cascades emitted by fission fragments.

We report on the results of a measurement campaign performed with the FIPPS gamma-ray spectrometer at the ILL, using an...

82. Tbc

Stephan Oberstedt