Nuclear data-induced uncertainty quantification of neutronics parameters of accelerator-driven system

ABSTRACT

Nuclear data-induced uncertainties of neutronics parameters of one accelerator-driven system concept designed by the Japan Atomic Energy Agency are quantified. The variance-covariance data provided in the JENDL-4.0 library are used. Uncertainties are quantified for effective neutron multiplication factor, subcritical neutron multiplication rate, a family of delayed neutron fractions, power peaking and coolant void reactivity at several operational states. Inter-cycle and inter-parameter correlation matrices and detailed information such as nuclide-wise and nuclear data-wise uncertainties are also provided.

Keywords:

• Uncertainty quantification
• JENDL-4.0
• accelerator-driven system
• variance-covariance data

Acknowledgements

This work is supported under the project “Basic Research for Nuclear Transmutation Techniques by Accelerator-Driven System”, a special research program funded by Chubu Electric Power Co., Inc.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

Chubu Electric Power Co., Inc.: Basic Research for Nuclear Transmutation Techniques by Accelerator-Driven System.