Name: Wonder 2026: 7th edition of the International Workshop On Nuclear Data Evaluation for Reactor Applications
Start: 2026-06-29T12:00:00+02:00
End: 2026-07-03T15:45:00+02:00
Location: No location set

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

from Monday, June 29, 2026 (12:00 PM) to Friday, July 3, 2026 (3:45 PM)

Monday, June 29, 2026

12:00 PM Lunch
Lunch
12:00 PM - 1:30 PM
1:30 PM Introduction
1:30 PM - 1:55 PM
Contributions

1:30 PM Welcome to WONDER 2026 - Abdelhazize Chebboubi (CEA)

1:40 PM Presentation of IRESNE - Jean-Michel Ruggieri (CEA)
1:55 PM Microscopic and Integral Measurements I
1:55 PM - 4:00 PM
Contributions

1:55 PM Recent Nuclear Data Measurements and Evaluation Activity at RPI - Yaron Danon (Rensselaer Polytechnic Institute)

2:20 PM Measurements of fission cross sections of 235U at the KURNS-LINAC - Kazushi Terada (Kyoto University)

2:40 PM Measurements of Neutron-Induced Fission Cross Sections by Prompt Neutron Detection at J-PARC MLF ANNRI - Shunsuke Endo (Japan Atomic Energy Agency)

3:00 PM Neutron-induced fission and activation studies of NTUA at the neutron facility of NCSR “Demokritos” - Roza Zanni Vlastou (National Technical Univ. of Athens (GR))

3:20 PM Analysis of Xenon-131 Prompt Gammas from Thermal Neutron Capture on Xenon-130 - Andrew Rosen (The University of Texas at Austin)
4:00 PM Coffee Break
Coffee Break
4:00 PM - 4:30 PM
4:30 PM Evaluation of Nuclear Data (theory, models, codes) I
4:30 PM - 6:35 PM
Contributions

4:30 PM From Criticality Safety to Advanced Reactors: The Evolving Role of the NCSP and DNCSH in Nuclear Data Development - Luiz Leal (ORNL)

4:55 PM The Radiation Safety Information Computational Center (RSICC): An International Nuclear Science Information Center - Timothy Valentine (Oak Ridge National Laboratory)

5:15 PM New Fit of Thermal Neutron Constants for Standards - Gilles Noguere (CEA)

5:35 PM ENDF developments beyond ENDF/B-VIII.1 - Gustavo Nobre (Brookhaven National Laboratory)

5:55 PM Joint Evaluated Fission and Fusion project: JEFF-4.0 nuclear data library and beyond - Antonio Jiménez-Carrascosa (OECD Nuclear Energy Agency)

6:15 PM Current Initiatives in WPEC Nuclear Data Activities - Anastasia Georgiadou (OECD Nuclear Energy Agency)
Tuesday, June 30, 2026
8:45 AM Nuclear Fission (prompt particle emission, fission yields) I
8:45 AM - 10:15 AM
Contributions

8:45 AM Energy dependency of fission product yields - Diego Ramos (GANIL)

9:10 AM Fission studies at JRC Geel - Stephan Oberstedt

9:35 AM Experiments on the spontaneous fission of Cm-248 using the fission spectrometer VERDI - Ali Al-Adili

9:55 AM Direct Measurement of Independent Isotopic Fission Yields of 252Cf by Mass Spectrometry - Heinrich Wilsenach (Hebrew University of Jerusalem)
10:15 AM Coffee Break
Coffee Break
10:15 AM - 10:45 AM
10:45 AM Microscopic and Integral Measurements II
10:45 AM - 12:30 PM
Contributions

10:45 AM Overview of the n_TOF nuclear data activities - Maria Diakaki (NTUA)

11:10 AM Final results of the 239Pu capture and fission cross section measurements at n_TOF (CERN) - Adrian Sanchez Caballero (CIEMAT - Centro de Investigaciones Energéticas Medioambientales y Tec. (ES))

11:30 AM Measurement of the 241Pu neutron capture-to-fission cross section ratio at n_TOF - Aline Cahuzac (CEA, DRF/IRFU, Université Paris-Saclay, Gif-sur-Yvette, France)

11:50 AM New high-resolution measurement of 56Fe(n,γ) cross-section at CERN’s n_TOF facility. - Aparna Basavaraja Allannavar (Universitat Politecnica Catalunya (ES))

12:10 PM 50Cr and 53Cr (n,γ) cross section measurements at n_TOF and HiSPANoS - Pablo Pérez Maroto (Universitat Politècnica Catalunya (ES))
12:30 PM Lunch
Lunch
12:30 PM - 2:00 PM
2:00 PM Microscopic and Integral Measurements III
2:00 PM - 4:00 PM
Contributions

2:00 PM Preparation of the measurement of the 39K(n, cp) reaction cross section at n_TOF - Krzysztof Stasiak (University of Lodz (PL))

2:20 PM Prompt Gamma Spectroscopy Results for the 88Zr(n,γ) Reaction: New Cascade Identifications and Implications for the Anomalous Thermal Neutron Capture Cross Section - Ashley Baklarz

2:40 PM Measurement of the Total 40Ar(n,2n)39Ar and 41Ar(n,γ)42Ar Reaction Cross Sections - Sutanu Bhattacharya (Racah Institute of Physics, Hebrew University of Jerusalem, Israel)

3:00 PM Nuclear criticality safety relevant data with the DICER instrument at LANSCE - Thanos Stamatopoulos (Los Alamos National Laboratory)

3:20 PM 133Cs(n,γ) cross section measurement with DANCE - Esther Leal Cidoncha (Los Alamos National Laboratory)

3:40 PM Impact of nuclear data uncertainties to the effective kinetic parameters of VENUS-F used for reactivity measurements - Federico Di Croce (Belgian Nuclear Research Centre SCK CEN)
4:00 PM Coffee Break
Coffee Break
4:00 PM - 4:30 PM
4:30 PM Microscopic and Integral Measurements III
4:30 PM - 5:10 PM
Contributions

4:30 PM 235U, 237Np and 232Th fission rate traverse measurements at VENUS-F for nuclear data validation and oscillation experiments - Federico Grimaldi (SCK CEN)

4:50 PM Determination of partial prompt gamma-ray cross-sections induced by fast neutron inelastic scattering using the FaNGaS instrument - Iaroslav Meleshenkovskii
5:10 PM Evaluation of Nuclear Data (theory, models, codes) II
5:10 PM - 6:30 PM
Contributions

5:10 PM Past, present and future of the finite range liquid drop model - Alessandro Pastore (CEA Cadarache)

5:30 PM DARN: A tool for nuclear data roundtrip adjustment and its application to the NEA subgroup 52 exercise - Andry Monlon (Laboratory for Reactor Physics and Systems Behavior, EPFL, 1015 Lausanne, Switzerland)

5:50 PM Uncertainty quantification of neutron induced cross-section of Zr-90 with model defect treatment using Nuclear Data Evaluation Pipeline of Uppsala (NEPU) - Jinti Barman (Uppsala University)

6:10 PM Bayesian Inference using microscopic and integral measurements to infer nuclear data parameters - Daan Houben (SCK CEN)
Wednesday, July 1, 2026
9:00 AM Nuclear Fission (prompt particle emission, fission yields) II
9:00 AM - 10:00 AM
Contributions

9:00 AM Less or not at all investigated correlations between different fragment and prompt emission quantities - Anabella Cristina Tudora (University of Bucharest, Faculty of Physics)

9:20 AM Anomalies in the fission of light actinides - Karl-Heinz Schmidt

9:40 AM Time and energy evolution of radiative emissions in the ²⁵²Cf spontaneous fission - Victoria Mary (CEA)
10:00 AM Coffee Break
Coffee Break
10:00 AM - 10:30 AM
10:30 AM Nuclear Fission (prompt particle emission, fission yields) II
10:30 AM - 11:35 AM
Contributions

10:30 AM High-energy neutrons in fission: catapult neutrons - Roberto Capote (Suncoast Data Evaluation)

10:55 AM From Sudden Approximation to Dynamical Model: emission of Scission Neutrons from 235U(nth,f) - Florian Guezet (CNRS LP2iB Université de Bordeaux)

11:15 AM Consistent fission yield evaluations before and after prompt neutron emission - Alessandro Regonesi
11:35 AM Lunch
Lunch
11:35 AM - 1:00 PM

1:00 PM CEA Cadarache and ITER Visits
CEA Cadarache and ITER Visits
1:00 PM - 6:30 PM

7:30 PM Conference Dinner at Vasarely Foundation
Conference Dinner at Vasarely Foundation
7:30 PM - 10:30 PM
Thursday, July 2, 2026
8:45 AM Decay Data and Delayed Neutrons
8:45 AM - 10:10 AM
Contributions

8:45 AM Contribution of the DDEP collaboration to the JEFF4 Radioactive Decay Data library - Xavier Mougeot

9:10 AM Recent progress in experimental beta spectrometry at the LNE-LNHB - Sylvain Leblond (LNHB)

9:30 AM Bayesian Inference of Delayed Neutron Multigroup Constants: Application to 9 MeV 238U Photofission - Johann Piekar (CEA-LIST)

9:50 AM Simulation of a monoenergetic neutron source with GEANT4 - Mathieu Boissier (CEA/DES/IRESNE/DER/SPRC/LEPh)
10:10 AM Coffee Break
Coffee Break
10:10 AM - 10:40 AM
10:40 AM Microscopic and Integral Measurements IV
10:40 AM - 12:20 PM
Contributions

10:40 AM Improving nuclear data for iron: results and outlook from GELINA experiments - Georgios Gkatis (EC-JRC)

11:00 AM Neutron scattering cross-section measurements of Pb-208 with ELISA - Jisk Knijpstra

11:20 AM High-resolution neutron scattering cross section measurements with the upgraded ELISA at GELINA - Anna Karakaxi (CEA Cadarache)

11:40 AM Activation cross section measurements of short-lived reaction products on Mo, Ge and Au isotopes induced by 16 to 20 MeV neutrons - Zoi Bari (National Technical University of Athens)

12:00 PM ²⁴²Pu and ²⁴⁰Pu neutron-induced fission cross section in the 1-2 MeV energy range using ¹H(n,n) standard - Salma El Hessak (Laboratoire de Physique des Deux Infinis de Bordeaux CNRS Univ. Bordeaux)
12:20 PM Lunch
Lunch
12:20 PM - 1:50 PM
1:50 PM Uncertainties and Covariance Matrices (methodology and reactor calculation impacts)
1:50 PM - 4:00 PM
Contributions

1:50 PM Uncertainty propagation of nuclear data: how and what for? - Oscar Cabellos (Universidad Politécnica de Madrid)

2:15 PM 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)

2:40 PM ENDF/B-VIII.0 nuclear data uncertainty propagation with CASMO-5 on spent nuclear fuel - Raphaelle ICHOU (ASNR)

3:00 PM Impact of nuclear data on decay heat calculations - Francesco Esposito (Subatech (CNRS/IN2P3, IMT Atlantique, Université de Nantes), 44307 Nantes, France)

3:20 PM Evaluation of elastic angular distribution covariances for 56Fe from EXFOR experimental data - Juan Antonio Monleón de la Lluvia (ASNR)

3:40 PM 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)
4:00 PM Coffee Break
Coffee Break
4:00 PM - 4:30 PM
4:30 PM Evaluation of Nuclear Data (theory, models, codes) III
4:30 PM - 5:50 PM
Contributions

4:30 PM First simultaneous evaluation of ﬁssion probabilities and neutron-induced cross sections for the Pu ﬁssile isotopes - Paola Marini (GANIL - CNRS)

4:50 PM Random matrix approach for generating cross sections and probability table in the unresolved resonance region - Kazuki Fujio (Los Alamos National Laboratory)

5:10 PM A Constrained Resonance Analysis Method Informed by New Transmission and Capture Measurements for Copper - Noah Walton (Los Alamos National Laboratory)

5:30 PM New evaluation of the independent fission yields: description of the method - Nemetan Teixeira Rua (CEA Cadarache - DES/IRESNE/DER/SPRC/LEPh)
Friday, July 3, 2026
9:00 AM Processing and Benchmarking
9:00 AM - 10:05 AM
Contributions

9:00 AM Impact of JEFF-4.0 on full core calculations - Simon Ravaux (Framatome)

9:25 AM JEFF-4.0 gamma-production evaluations and validation of gamma-heating in Zero Power Reactor - David Bernard (CEA/DES/IRESNE/DER/SPRC/LEPh)

9:45 AM Development of D1S Calculation System - Young-Sik Cho (Korea Atomic Energy Research Institute)
10:05 AM Coffee Break
Coffee Break
10:05 AM - 10:35 AM
10:35 AM Processing and Benchmarking
10:35 AM - 12:15 PM
Contributions

10:35 AM Further improvements to the nuclear data processing code GALILÉE-1 - Cédric Jouanne (CEA Saclay)

10:55 AM Assessment of evaluated nuclear data consistency using integral damage and heating cross sections - Shengli Chen (Sun Yat-sen University)

11:15 AM Impact of Nuclear Data Processing Parameters on Cross Sections and Criticality Safety Benchmarks - Vaibhav Jaiswal (ASNR)

11:35 AM Porting Open-Source Multiple-Temperature Nuclear Data Libraries for Reactor Physics Applications with MCNP, Serpent, and OpenMC - Danila Roubtsov (Canadian Nuclear Laboratires, Chalk River, ON, Canada)

11:55 AM Impact of Thermal Scattering Law Uncertainty on Benchmarks Sensitive to Polyethylene - Aitor Bengoechea Fernández (ASNR)
12:15 PM Conclusion
12:15 PM - 12:25 PM
Contributions

12:15 PM Conclusion to WONDER 2026 - Abdelhazize Chebboubi (CEA) Olivier Serot (CEA Cadarache)
12:25 PM Lunch
Lunch
12:25 PM - 2:00 PM