Nuclear Data Week 2025
→
US/Eastern
Building 555, Hamilton Conference Room
Building 555, Hamilton Conference Room
Brookhaven National Laboratory
Upton, NY 11973
USA
Catherine-Anne Dunn,
David Brown
(NNDC-BNL),
Gustavo Nobre
(BNL)
Description
Nuclear Data Week has been rescheduled to 6-9 January 2026
The November 2025 Nuclear Data Week is postponed to the first week of January 2026
- CSEWG - Tuesday - Friday
- WANDA 2026 Planning - cancelled
- NCSP NDAG - Tuesday AM
- NCSP AMWG - Tuesday AM
Non-U.S. citizens must complete an additional Brookhaven Lab Guest Form and be approved in the Guest Information System (GIS) if they would like to attend this meeting. This applies to both in-person and remote attendees!
For in-person events, it is advisable not to make travel arrangements until you are approved in the Guest Information System.
If you have a current Brookhaven Lab guest appointment and a valid BNL Guest Number or you have a pending Guest Registration (GR) Number, it is not necessary to complete the additional Brookhaven Lab Guest Form again.
Registration Deadlines:
- US citizens: December 15, 2025
- non-US citizens: December 5, 2025
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Analytical Methods Working Group: AMWG
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1
Opening RemarksSpeaker: Jennifer Alwin (Los Alamos National Laboratory)
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2
TSL UncertaintiesSpeaker: Dr Vaibhav Jaiswal (Institut de Radioprotection et de Sûreté Nucléaire (IRSN))
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3
Processing IntercomparisonSpeaker: Dr Vaibhav Jaiswal (Institut de Radioprotection et de Sûreté Nucléaire (IRSN))
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4
Intercomparison Discussion/FY26 Tasks
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5
Summary of Action Items/topics for next AMWG meeting in MarchSpeaker: Jennifer Alwin (Los Alamos National Laboratory)
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1
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12:30
Lunch
- 6
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9
R-Matrix Meeting AnnouncementSpeaker: Dr Marco Pigni (ORNL)
- 10
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Evaluation: Fission Products Yields and Decay Data
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11
Update on the FY compilation effort at BNLSpeaker: Andrea Mattera (BNL)
- 12
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13
Updating GEANIE Experimental Data by Evaluated Fission Product Yields, and Los Alamos CoH-based Evaluation (LACE) FrameworkSpeaker: Toshihiko Kawano (Los Alamos National Laboratory)
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14
LLNL FPY Modeling and EvaluationSpeakers: Ramona Vogt, Ramona Vogt (LLNL and UC Davis)
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15:50
Break
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15
Fission product yield data for basic physics research and applicationsSpeaker: Anton Tonchev (LLNL)
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16
Nuclide Inventory Sensitivity to a Fine Resolution of Fast-Energy Fission Product YieldsSpeakers: Friederike Bostelmann (Oak Ridge National Laboratory), Dr Marco Pigni (ORNL)
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11
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Formats and Processing
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17
Energy dependent fission yield covarianceSpeaker: Wim Haeck (LANL)
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18
Disallowing interpolation on the current fission product yield dataSpeaker: Wim Haeck (LANL)
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19
Standardisation of reaction identifiers for GNDS and linking to ENDF MT nomenclature.Speaker: Wim Haeck (LANL)
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20
TSL Format discussionsSpeaker: Chris Chapman (Oak Ridge National Laboratory)
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21
Depletion Data (or the Lack Thereof) in ENDF Data FilesSpeaker: Charles Wemple (Studsvik Scandpower Inc.)
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22
Minor ENDF manual changesSpeakers: David Brown (NNDC-BNL), Dorothea Wiarda (ORNL), Gustavo Nobre (BNL)
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23
File 32/File 33 covariance mixingSpeakers: Dorothea Wiarda (ORNL), Jordan McDonnell (UT-Battelle), Dr Marco Pigni (ORNL)
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10:00
Break
- 27
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29
ADVANCESpeaker: Coles Rebecca (BNL)
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- 31
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17
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12:00
Lunch
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Measurements
- 32
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33
Measurements with DICER at LANSCESpeaker: Thanos Stamatopoulos (Los Alamos National Laboratory)
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34
Update on Recent Cl-35(n,p) LENZ Measurements into the RRRSpeaker: Kenneth Hanselman (LANL)
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35
Recent measurements of 235U, 238U, 239Pu, and 240Pu photofission cross sections in the region of the Giant Dipole ResonanceSpeaker: Anton Tonchev (LLNL)
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36
Thermal Transmission measurementsSpeaker: Dr Kemal Ramic (Oak Ridge National Lab)
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37
Recent Work on Neutron StandardsSpeaker: Allan Carlson (NIST)
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38
Recent Zr-88 and Xe-135 measurementsSpeaker: Will Flanagan (University of Texas at Austin)
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15:15
Break
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39
Hafnium High-Energy Quasi Differential ScatteringSpeaker: Adam Daskalakis (Naval Nuclear Laboratory)
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40
Zr measurements at GELINASpeaker: Klaus Guber (Oak Ridge National Laboratory)
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41
Nuclear Data measurements at RPISpeaker: Yaron Danon (Rensselaer Polytechnic Institute)
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42
Recent Results from GENESISSpeakers: Bethany Goldblum (Lawrence Berkeley National Laboratory), Thibault Laplace (University of California Berkeley)
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43
The present status of the EXFOR projectSpeaker: Boris Pritychenko (NNDC, BNL)
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44
Thermal scattering measurements from graphiteSpeaker: Dr Kemal Ramic (Oak Ridge National Lab)
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45
Nuclear data measurements of Ni and Cr capture gamma-raysSpeaker: Shuya Ota (Brookhaven National Laboratory)
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46
Mn, Cu, Fe capture gammas at thermalSpeaker: Marian Jandel (University of Massachusetts, Lowell, MA)
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Covariances
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47
IntroductionSpeaker: Denise Neudecker (Los Alamos National Laboratory, Theoretical Division)
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49
Neutron Data Standards: Software and Method DevelopmentsSpeaker: Georg Schnabel (IAEA)
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50
Using ML to find root causes for discrepancies in experimental data underlying the new 252Cf PFNS StandardSpeaker: Denise Neudecker (Los Alamos National Laboratory, Theoretical Division)
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51
A Data-driven Approach to Credible Uncertainty Quantification in the RRRSpeaker: Vladimir Sobes (University of Tennessee)
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53
Bayesian Model Mixing and the Bayesian Analysis of Nuclear Dynamics (BAND) Software FrameworkSpeaker: Daniel Philips (U. Ohio)
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54
The BAND approach to optical potentialsSpeaker: Kyle Beyer (University of Michigan)
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09:54
Break
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55
Covariances for the LLNL Pu239 EvaluationSpeaker: Andre Sieverding (LLNL)
- 56
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57
Inference of Photonuclear Theory Parameter Covariances Using ML-Enabled MCMCSpeaker: Noah Walton (LANL)
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58
Impact of cross section and fission yield uncertainties on the fuel inventory in a high temperature fluoride salt-cooled reactorSpeaker: Friederike Bostelmann (Oak Ridge National Laboratory)
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59
Gaussian Mixture Models (GMM) for data and covariance evaluations: a phonon density of states case studySpeaker: Goran Arbanas (Oak Ridge National Laboratory)
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60
Progress on Light Water TSL CovarianceSpeaker: Chris Chapman (Oak Ridge National Laboratory)
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47
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12:00
Executive Committee Meeting B (Berkner Hall)
B
Berkner Hall
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12:00
Lunch
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Evaluation: Evaluation (Neutrons)
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62
IntroductionSpeaker: Mark Chadwick (Lanl)
- 63
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64
New INDEN Pu-239 evaluation: Improving scattering cross sectionsSpeaker: Roberto Capote (IAEA NDS)
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65
Actinide nubar and PFNS evaluationsSpeaker: Denise Neudecker (Los Alamos National Laboratory, Theoretical Division)
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66
New Pu-240 evaluation in the fast rangeSpeaker: Nathan Gibson (Los Alamos National Laboratory)
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67
URR challenges: Update to the Fe-56 evaluationSpeaker: Prof. Andrej Trkov (Jozef Stefan Institute)
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68
Updates on the 90,91Zr evaluations at RPISpeaker: Greg Siemers (Rensselaer Polytechnic Institute)
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69
Zr-90/91 URR evaluationsSpeaker: Alec Golas
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70
Recent and planned updates to neutron standards for ENDF/B-IX.0 from R-matrix evaluationsSpeaker: Mark Paris (LANL T-2)
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14:44
Photo and Break
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73
Photonuclear evaluations of major actinidesSpeaker: Kostas Kravvaris (LLNL)
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75
Impact of the temperature dependent lattice constants and extinction on keffSpeaker: Dr Kemal Ramic (Oak Ridge National Lab)
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76
Experimentally validated machine learned potentials for next ENDF releaseSpeaker: Dr Kemal Ramic (Oak Ridge National Lab)
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77
IntroductionSpeaker: Roberto Capote (IAEA NDS)
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78
Panel Discussion
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62
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Validation
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79
WelcomeSpeakers: Michael Zerkle (Bettis Atomic Power Laboratory), Dr Michael Zerkle (Naval Nuclear Laboratory)
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80
LANL Validation Results of Recently Released LibrariesSpeaker: Noah Kleedtke (LANL)
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81
NNL Validation TestingSpeaker: Linden Cotchen (NNL)
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83
LLNL Testing of ENDF/B-VIII.1 with the COG Validation SuiteSpeaker: Jesse Norris (Lawrence Livermore National Laboratory)
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85
Nuclear Data Testing at Studsvik ScandpowerSpeaker: Charles Wemple (Studsvik Scandpower Inc.)
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86
MCNP6.3 and OpenMC testing of the ENDF/B-VIII.1 Graphite TSLs using FUND-ORELA-ACC-GRAPH-PNSDT-001 benchmarkSpeaker: Dr Kemal Ramic (Oak Ridge National Lab)
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87
NCSU/ORELA Neutron Thermalization in Graphite ICSBEP Benchmark - LLNL COG ResultsSpeakers: David Heinrichs (LLNL), Soon Kim (Lawrence Livermore National Laboratory)
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88
MC21 Testing of the ENDF/B-VIII.1 Graphite TSLs in the ORELA PNSDT BenchmarkSpeakers: Jason Thompson (NNL-KAPL), Jason Thompson (NNL)
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10:20
Break
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89
TSL Validation using HTR-PROTEUSSpeaker: Dr John Bess (JFoster & Associates, LLC)
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90
Update on New ICSBEP EvaluationsSpeaker: Catherine Percher (Lawrence Livermore National Laboratory)
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91
Data Testing of ENDF/B-VIII.2 Beta Chlorine with ICSBEPSpeaker: Eric Aboud (LLNL)
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92
Source Modelling in the LLNL Pulsed SpheresSpeaker: Tim Gaines (AWE Plc)
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93
Benchmarking and Validation of Gamma-Producing Nuclear Data For Well LoggingSpeaker: Bor Kos (Baker Hughes)
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94
Potential for Validation Data from Radioisotope Production at ORNLSpeaker: William Marshall (Oak Ridge National Laboratory)
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79
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12:00
Lunch
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Validation
- 95
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Special Topic: Inventory Library
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96
WelcomeSpeaker: Andre Sieverding (LLNL)
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97
Activation Library Use in Target Design and Analysis for Radioisotope Production at ORNLSpeaker: William Marshall (Oak Ridge National Laboratory)
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98
Nuclide inventory validation: effect of nuclear data librariesSpeaker: Germina Procop (ORNL)
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99
Impact of cross section and fission yield uncertainties on fuel inventory for a molten salt fast reactorsSpeaker: Germina Procop (ORNL)
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100
Reaction theory and workflow developments at LLNLSpeaker: Jeff Berryman (LANL)
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101
Reaction theory developments at LANLSpeaker: Amy Lovell (Los Alamos National Laboratory)
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102
Discussion
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96
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