Name: Nuclear Data Week 2025
Start: 2026-01-06T08:00:00-05:00
End: 2026-01-09T18:00:00-05:00
Location: Building 555, Hamilton Conference Room

Nuclear Data Week 2025

from Tuesday, January 6, 2026 (8:00 AM) to Friday, January 9, 2026 (6:00 PM)

Monday, January 5, 2026
Tuesday, January 6, 2026

9:00 AM NDAG
NDAG
9:00 AM - 11:00 AM
11:00 AM AMWG
AMWG
11:00 AM - 12:30 PM
Contributions

11:00 AM Opening Remarks - Jennifer Alwin (Los Alamos National Laboratory)

11:05 AM TSL Uncertainties - Vaibhav Jaiswal (Institut de Radioprotection et de Sûreté Nucléaire (IRSN))

11:20 AM Processing Intercomparison - Vaibhav Jaiswal (Institut de Radioprotection et de Sûreté Nucléaire (IRSN))

11:35 AM Intercomparison Discussion/FY26 Tasks

12:20 PM Summary of Action Items/topics for next AMWG meeting in March - Jennifer Alwin (Los Alamos National Laboratory)
12:30 PM Lunch
Lunch
12:30 PM - 1:30 PM
1:30 PM Welcome - David Brown (NNDC-BNL) Martin Schoonen (BNL)
Welcome
- David Brown (NNDC-BNL)
- Martin Schoonen (BNL)
1:30 PM - 1:35 PM
1:35 PM CSEWG 101 - David Brown (NNDC-BNL)
CSEWG 101
- David Brown (NNDC-BNL)
1:35 PM - 1:45 PM
1:45 PM ENDF Library Update - Gustavo Nobre (BNL)
ENDF Library Update
- Gustavo Nobre (BNL)
1:45 PM - 2:00 PM
2:00 PM R-Matrix Meeting Announcement - Marco Pigni (ORNL)
R-Matrix Meeting Announcement
- Marco Pigni (ORNL)
2:00 PM - 2:05 PM
2:05 PM JEFF-4.0 - Antonio Jimenez-Carrascosa (OECD-NEA)
JEFF-4.0
- Antonio Jimenez-Carrascosa (OECD-NEA)
2:05 PM - 2:30 PM
2:30 PM Fission Products Yields and Decay Data
Fission Products Yields and Decay Data
2:30 PM - 5:10 PM
Contributions

2:30 PM Update on the FY compilation effort at BNL - Andrea Mattera (BNL)

2:50 PM LANL FPY Summary - Amy Lovell (Los Alamos National Laboratory)

3:10 PM Updating GEANIE Experimental Data by Evaluated Fission Product Yields, and Los Alamos CoH-based Evaluation (LACE) Framework - Toshihiko Kawano (Los Alamos National Laboratory)

3:30 PM LLNL FPY Modeling and Evaluation - Ramona Vogt Ramona Vogt (LLNL and UC Davis)

4:10 PM Fission product yield data for basic physics research and applications - Anton Tonchev (LLNL)

4:30 PM Nuclide Inventory Sensitivity to a Fine Resolution of Fast-Energy Fission Product Yields - Friederike Bostelmann (Oak Ridge National Laboratory) Marco Pigni (ORNL)
Wednesday, January 7, 2026
8:00 AM
8:00 AM - 12:00 PM
Contributions

8:00 AM Energy dependent fission yield covariance - Wim Haeck (LANL)

8:10 AM Disallowing interpolation on the current fission product yield data - Wim Haeck (LANL)

8:20 AM Standardisation of reaction identifiers for GNDS and linking to ENDF MT nomenclature. - Wim Haeck (LANL)

8:30 AM TSL Format discussions - Chris Chapman (Oak Ridge National Laboratory)

8:40 AM Depletion Data (or the Lack Thereof) in ENDF Data Files - Charles Wemple (Studsvik Scandpower Inc.)

8:50 AM Minor ENDF manual changes - David Brown (NNDC-BNL) Dorothea Wiarda (ORNL) Gustavo Nobre (BNL)

9:00 AM File 32/File 33 covariance mixing - Dorothea Wiarda (ORNL) Jordan McDonnell (UT-Battelle) Marco Pigni (ORNL)

9:10 AM Unifying the ENDF free text documentation formats - David Brown (NNDC-BNL)

9:20 AM NDEX - Jason Thompson (NNL-KAPL)

9:40 AM NJOY - Wim Haeck (LANL)

10:20 AM AMPX - Jordan McDonnell (UT-Battelle)

10:40 AM FUDGE - Caleb Mattoon (Lawrence Livermore National Lab)

11:00 AM ADVANCE - Coles Rebecca (BNL)

11:20 AM SAMMY - Dorothea Wiarda (ORNL)

11:40 AM GNDS Updates - Caleb Mattoon (Lawrence Livermore National Lab)
12:00 PM Lunch
Lunch
12:00 PM - 1:30 PM
1:30 PM Measurements
Measurements
1:30 PM - 5:40 PM
Contributions

1:30 PM APS-DNP Announcement - Ramona Vogt Ramona Vogt (LLNL and UC Davis)

1:35 PM Measurements with DICER at LANSCE - Thanos Stamatopoulos (Los Alamos National Laboratory)

1:50 PM Update on Recent Cl-35(n,p) LENZ Measurements into the RRR - Kenneth Hanselman (LANL)

2:05 PM Recent measurements of 235U, 238U, 239Pu, and 240Pu photofission cross sections in the region of the Giant Dipole Resonance - Anton Tonchev (LLNL)

2:25 PM Thermal Transmission measurements - Kemal Ramic (Oak Ridge National Lab)

2:40 PM Recent Work on Neutron Standards - Allan Carlson (NIST)

3:00 PM Recent Zr-88 and Xe-135 measurements - Will Flanagan (University of Texas at Austin)

3:30 PM Hafnium High-Energy Quasi Differential Scattering - Adam Daskalakis (Naval Nuclear Laboratory)

3:50 PM Zr measurements at GELINA - Klaus Guber (Oak Ridge National Laboratory)

4:05 PM Nuclear Data measurements at RPI - Yaron Danon (Rensselaer Polytechnic Institute)

4:25 PM Recent Results from GENESIS - Bethany Goldblum (Lawrence Berkeley National Laboratory) Thibault Laplace (University of California Berkeley)

4:45 PM The present status of the EXFOR project - Boris Pritychenko (NNDC, BNL)

5:00 PM Thermal scattering measurements from graphite - Kemal Ramic (Oak Ridge National Lab)

5:15 PM Nuclear data measurements of Ni and Cr capture gamma-rays - Shuya Ota (Brookhaven National Laboratory)

5:30 PM Mn, Cu, Fe capture gammas at thermal - Marian Jandel (University of Massachusetts, Lowell, MA)
Thursday, January 8, 2026
8:00 AM Covariances
Covariances
8:00 AM - 12:00 PM
Contributions

8:00 AM Introduction - Denise Neudecker (Los Alamos National Laboratory, Theoretical Division)

8:02 AM Ta181 Covariances and Integral Experiments - jesson hutchinson (LANL)

8:18 AM Neutron Data Standards: Software and Method Developments - Georg Schnabel (IAEA)

8:34 AM Using ML to find root causes for discrepancies in experimental data underlying the new 252Cf PFNS Standard - Denise Neudecker (Los Alamos National Laboratory, Theoretical Division)

8:50 AM A Data-driven Approach to Credible Uncertainty Quantification in the RRR - Vladimir Sobes (University of Tennessee)

9:06 AM Covariances in the URR - Cole Fritsch (UTK) Noah Walton (LANL)

9:22 AM Bayesian Model Mixing and the Bayesian Analysis of Nuclear Dynamics (BAND) Software Framework - Daniel Philips (U. Ohio)

9:38 AM The BAND approach to optical potentials - Kyle Beyer (University of Michigan)

10:04 AM Covariances for the LLNL Pu239 Evaluation - Andre Sieverding (LLNL)

10:20 AM Adjustment of Pu239 Evaluation Using Bayesian Inference - Marc Salinas

10:36 AM Inference of Photonuclear Theory Parameter Covariances Using ML-Enabled MCMC - Noah Walton (LANL)

10:52 AM Impact of cross section and fission yield uncertainties on the fuel inventory in a high temperature fluoride salt-cooled reactor - Friederike Bostelmann (Oak Ridge National Laboratory)

11:08 AM Gaussian Mixture Models (GMM) for data and covariance evaluations: a phonon density of states case study - Goran Arbanas (Oak Ridge National Laboratory)

11:24 AM Progress on Light Water TSL Covariance - Chris Chapman (Oak Ridge National Laboratory)

11:40 AM New LANL FPY Evaluation Covariances - Amanda Lewis (LANL)
12:00 PM Executive Committee Meeting
Executive Committee Meeting
12:00 PM - 1:40 PM
Room: B

Lunch
Lunch
12:00 PM - 1:40 PM
1:40 PM Evaluation (Neutrons)
Evaluation (Neutrons)
1:40 PM - 4:54 PM
Contributions

1:40 PM Introduction - Mark Chadwick (Lanl)

1:52 PM Neutron standards - Allan Carlson (NIST)

2:04 PM New INDEN Pu-239 evaluation: Improving scattering cross sections - Roberto Capote (IAEA NDS)

2:09 PM Actinide nubar and PFNS evaluations - Denise Neudecker (Los Alamos National Laboratory, Theoretical Division)

2:14 PM New Pu-240 evaluation in the fast range - Nathan Gibson (Los Alamos National Laboratory)

2:19 PM URR challenges: Update to the Fe-56 evaluation - Andrej Trkov (Jozef Stefan Institute)

2:24 PM Updates on the 90,91Zr evaluations at RPI - Greg Siemers (Rensselaer Polytechnic Institute)

2:29 PM Zr-90/91 URR evaluations - Alec Golas

2:34 PM Recent and planned updates to neutron standards for ENDF/B-IX.0 from R-matrix evaluations - Mark Paris (LANL T-2)

2:39 PM n+ N-14 - Jordan McDonnell (UT-Battelle)

3:14 PM ORNL Cl evaluation - Marco Pigni (ORNL)

3:19 PM Photonuclear evaluations of major actinides - Kostas Kravvaris (LLNL)

3:24 PM 8Be CN evaluation - Som Paneru

3:29 PM Impact of the temperature dependent lattice constants and extinction on keff - Kemal Ramic (Oak Ridge National Lab)

3:34 PM Experimentally validated machine learned potentials for next ENDF release - Kemal Ramic (Oak Ridge National Lab)

3:39 PM Introduction - Roberto Capote (IAEA NDS)

3:49 PM Panel Discussion
Friday, January 9, 2026
8:00 AM Validation
Validation
8:00 AM - 12:00 PM
Contributions

8:00 AM Welcome - Michael Zerkle (Bettis Atomic Power Laboratory) Michael Zerkle (Naval Nuclear Laboratory)

8:05 AM LANL Validation Results of Recently Released Libraries - Noah Kleedtke (LANL)

8:20 AM NNL Validation Testing - Linden Cotchen (NNL)

8:35 AM ORNL Validation Testing - Travis Greene (ORNL)

8:50 AM LLNL Testing of ENDF/B-VIII.1 with the COG Validation Suite - Jesse Norris (Lawrence Livermore National Laboratory)

9:05 AM AWE Validation Testing - Mark Cornock (AWE.Plc)

9:20 AM Nuclear Data Testing at Studsvik Scandpower - Charles Wemple (Studsvik Scandpower Inc.)

9:35 AM MCNP6.3 and OpenMC testing of the ENDF/B-VIII.1 Graphite TSLs using FUND-ORELA-ACC-GRAPH-PNSDT-001 benchmark - Kemal Ramic (Oak Ridge National Lab)

9:50 AM NCSU/ORELA Neutron Thermalization in Graphite ICSBEP Benchmark - LLNL COG Results - David Heinrichs (LLNL) Soon Kim (Lawrence Livermore National Laboratory)

10:05 AM MC21 Testing of the ENDF/B-VIII.1 Graphite TSLs in the ORELA PNSDT Benchmark - Jason Thompson (NNL-KAPL) Jason Thompson (NNL)

10:30 AM TSL Validation using HTR-PROTEUS - John Bess (JFoster & Associates, LLC)

10:45 AM Update on New ICSBEP Evaluations - Catherine Percher (Lawrence Livermore National Laboratory)

11:00 AM Data Testing of ENDF/B-VIII.2 Beta Chlorine with ICSBEP - Eric Aboud (LLNL)

11:15 AM Source Modelling in the LLNL Pulsed Spheres - Tim Gaines (AWE Plc)

11:30 AM Benchmarking and Validation of Gamma-Producing Nuclear Data For Well Logging - Bor Kos (Baker Hughes)

11:45 AM Potential for Validation Data from Radioisotope Production at ORNL - William Marshall (Oak Ridge National Laboratory)
12:00 PM Lunch
Lunch
12:00 PM - 1:00 PM
1:00 PM Validation
Validation
1:00 PM - 1:15 PM
Contributions

1:00 PM First Look at use of PARADIGM for ND Validation - Peter Brain (LANL)
1:15 PM Inventory Library
Inventory Library
1:15 PM - 3:00 PM
Contributions

1:15 PM Welcome - Andre Sieverding (LLNL)

1:25 PM Activation Library Use in Target Design and Analysis for Radioisotope Production at ORNL - William Marshall (Oak Ridge National Laboratory)

1:40 PM Nuclide inventory validation: effect of nuclear data libraries - Germina Procop (ORNL)

1:55 PM Impact of cross section and fission yield uncertainties on fuel inventory for a molten salt fast reactors - Germina Procop (ORNL)

2:10 PM Reaction theory and workflow developments at LLNL - Jeff Berryman (LANL)

2:25 PM Reaction theory developments at LANL - Amy Lovell (Los Alamos National Laboratory)

2:40 PM Discussion

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