Wonder 2026: 7th edition of the International Workshop On Nuclear Data Evaluation for Reactor Applications

Session

Uncertainties and Covariance Matrices (methodology and reactor calculation impacts)

Jul 2, 2026, 1:50 PM

Conveners

Uncertainties and Covariance Matrices (methodology and reactor calculation impacts)

• Grégoire Kessedjian

24. Uncertainty propagation of nuclear data: how and what for?

Oscar Cabellos (Universidad Politécnica de Madrid)

7/2/26, 1:50 PM

9. Fuel decay heat : Nuclear Data Needs from EDF perspective & Nuclear Data uncertainty propagation using CEA’s next generation fuel inventory code MENDEL

Oystein Bremnes (EDF)

7/2/26, 2:15 PM

8. ENDF/B-VIII.0 nuclear data uncertainty propagation with CASMO-5 on spent nuclear fuel

Raphaelle ICHOU (ASNR)

7/2/26, 2:40 PM

Accurate estimation of spent nuclear fuel (SNF) nuclide inventory is of great importance for safety aspects of the back-end of the nuclear fuel cycle. In this regard, it is necessary to assess the impact of nuclear data uncertainties on SNF inventories.
A PWR UO2 post-irradiation-examination (PIE) fuel rod sample for which experimental data are available has been studied within the Sub-Groups...

15. Impact of nuclear data on decay heat calculations

Francesco Esposito (Subatech (CNRS/IN2P3, IMT Atlantique, Université de Nantes), 44307 Nantes, France)

7/2/26, 3:00 PM

18. Evaluation of elastic angular distribution covariances for 56Fe from EXFOR experimental data

Juan Antonio Monleón de la Lluvia (ASNR)

7/2/26, 3:20 PM

65. Stochastic‑Sampling Framework for Sensitivity Analysis and Uncertainty Quantification Using the Serpent 2 Monte Carlo Code

Ana Jambrina (VTT Technical Research Centre of Finland Ltd)

7/2/26, 3:40 PM

A comprehensive stochastic‑sampling framework has been developed to support sensitivity analysis and uncertainty quantification (SA&UQ) in reactor‑physics and radiation‑transport applications using Serpent 2, the multi‑purpose, three‑dimensional, continuous‑energy neutron and photon transport Monte Carlo code developed at VTT. The methodology integrates conventional random‑sampling techniques...