Speaker
Description
This presentation provides an overview of recent experimental advances in nuclear fission research at the NNRC. We begin by summarizing key results from fission yield measurements performed at the Institut Laue Langevin, together with investigations of isomeric yield ratios obtained using the Nuball detector array. These studies contribute to a more detailed understanding of fragment mass formation mechanisms and nuclear structure effects in fission.
We then discuss recent developments in fission modeling, with particular emphasis on the role of TALYS as a unifying framework. Recent progress has positioned TALYS at the center of efforts to integrate databases generated by a range of fission models, enabling consistent treatment of fragment de excitation through the Hauser Feshbach statistical formalism. This approach lead to predictive and internally consistent calculations of post fission observables.
We highlight ongoing work aimed at incorporating data from the FREYA code into this framework, with the goal of expanding the range of available input distributions and improving model versatility. In addition, a validation study is discussed in which calculated isomeric yield ratios with TALYS are systematically compared with results obtained using the Manchester spin method. This comparison serves as an important benchmark for assessing the reliability of spin population modeling within the combined TALYS based approach.