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Nuclear Data Week 2025
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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
ย
The November 2025 Nuclear Data Week is postponed to the first week of January 2026 ย
- CSEWG - Tuesday - Fridayย
- WANDA 2026 Planning - cancelled
- NCSP NDAG - Tuesday AM
- NCSP AMWG - Tuesday AM
ย
Non-U.S. citizensย 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.ย 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
ย
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- 09:00 → 11:00
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11:00
→
12:30
Analytical Methods Working Group: AMWG
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11:00
Opening Remarks 5mSpeaker: Jennifer Alwin (Los Alamos National Laboratory)
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11:05
TSL Uncertainties 15mSpeaker: Dr Vaibhav Jaiswal (Institut de Radioprotection et de Sรปretรฉ Nuclรฉaire (IRSN))
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11:20
Processing Intercomparison 15mSpeaker: Dr Vaibhav Jaiswal (Institut de Radioprotection et de Sรปretรฉ Nuclรฉaire (IRSN))
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11:35
Intercomparison Discussion/FY26 Tasks 45m
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12:20
Summary of Action Items/topics for next AMWG meeting in March 10mSpeaker: Jennifer Alwin (Los Alamos National Laboratory)
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11:00
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12:30
→
13:30
Lunch 1h
- 13:30 → 13:35
- 13:35 → 13:45
- 13:45 → 14:00
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14:00
→
14:05
R-Matrix Meeting Announcement 5mSpeaker: Dr Marco Pigni (ORNL)
- 14:05 → 14:30
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14:30
→
17:10
Evaluation: Fission Products Yields and Decay Data
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14:30
Update on the FY compilation effort at BNL 20mSpeaker: Andrea Mattera (BNL)
- 14:50
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15:10
Updating GEANIE Experimental Data by Evaluated Fission Product Yields, and Los Alamos CoH-based Evaluation (LACE) Framework 20mSpeaker: Toshihiko Kawano (Los Alamos National Laboratory)
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15:30
LLNL FPY Modeling and Evaluation 20mSpeakers: Ramona Vogt, Ramona Vogt (LLNL and UC Davis)
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15:50
Break 20m
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16:10
Fission product yield data for basic physics research and applications 20mSpeaker: Anton Tonchev (LLNL)
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16:30
Nuclide Inventory Sensitivity to a Fine Resolution of Fast-Energy Fission Product Yieldsโ 20mSpeakers: Friederike Bostelmann (Oak Ridge National Laboratory), Dr Marco Pigni (ORNL)
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14:30
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-
08:00
→
12:00
Formats and Processing
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08:00
Energy dependent fission yield covariance 10mSpeaker: Wim Haeck (LANL)
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08:10
Disallowing interpolation on the current fission product yield data 10mSpeaker: Wim Haeck (LANL)
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08:20
Standardisation of reaction identifiers for GNDS and linking to ENDF MT nomenclature. 10mSpeaker: Wim Haeck (LANL)
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08:30
TSL Format discussions 10mSpeaker: Chris Chapman (Oak Ridge National Laboratory)
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08:40
Depletion Data (or the Lack Thereof) in ENDF Data Files 10mSpeaker: Charles Wemple (Studsvik Scandpower Inc.)
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08:50
Minor ENDF manual changes 10mSpeakers: David Brown (NNDC-BNL), Dorothea Wiarda (ORNL), Gustavo Nobre (BNL)
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09:00
File 32/File 33 covariance mixing 10mSpeakers: Dorothea Wiarda (ORNL), Jordan McDonnell (UT-Battelle), Dr Marco Pigni (ORNL)
- 09:10
- 09:20
- 09:40
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10:00
Break 20m
- 10:20
- 10:40
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11:00
ADVANCE 20mSpeaker: Coles Rebecca (BNL)
- 11:20
- 11:40
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08:00
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12:00
→
13:30
Lunch 1h 30m
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13:30
→
17:40
Measurements
- 13:30
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13:35
Measurements with DICER at LANSCE 15mSpeaker: Thanos Stamatopoulos (Los Alamos National Laboratory)
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13:50
Update on Recent Cl-35(n,p) LENZ Measurements into the RRR 15mSpeaker: Kenneth Hanselman (LANL)
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14:05
Recent measurements of 235U, 238U, 239Pu, and 240Pu photofission cross sections in the region of the Giant Dipole Resonance 20mSpeaker: Anton Tonchev (LLNL)
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14:25
Thermal Transmission measurements 15mSpeaker: Dr Kemal Ramic (Oak Ridge National Lab)
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14:40
Recent Work on Neutron Standards 20mSpeaker: Allan Carlson (NIST)
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15:00
Recent Zr-88 and Xe-135 measurements 15mSpeaker: Will Flanagan (University of Texas at Austin)
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15:15
Break 15m
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15:30
Hafnium High-Energy Quasi Differential Scattering 20mSpeaker: Adam Daskalakis (Naval Nuclear Laboratory)
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15:50
Zr measurements at GELINA 15mSpeaker: Klaus Guber (Oak Ridge National Laboratory)
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16:05
Nuclear Data measurements at RPI 20mSpeaker: Yaron Danon (Rensselaer Polytechnic Institute)
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16:25
Recent Results from GENESIS 20mSpeakers: Bethany Goldblum (Lawrence Berkeley National Laboratory), Thibault Laplace (University of California Berkeley)
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16:45
The present status of the EXFOR project 15mSpeaker: Boris Pritychenko (NNDC, BNL)
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17:00
Thermal scattering measurements from graphite 15mSpeaker: Dr Kemal Ramic (Oak Ridge National Lab)
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17:15
Nuclear data measurements of Ni and Cr capture gamma-rays 15mSpeaker: Shuya Ota (Brookhaven National Laboratory)
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17:30
Mn, Cu, Fe capture gammas at thermal 10mSpeaker: Marian Jandel (University of Massachusetts, Lowell, MA)
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08:00
→
12:00
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-
08:00
→
12:00
Covariances
-
08:00
Introduction 2mSpeaker: Denise Neudecker (Los Alamos National Laboratory, Theoretical Division)
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08:02
Ta181 Covariances and Integral Experiments 16mSpeaker: jesson hutchinson (LANL)
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08:18
Neutron Data Standards: Software and Method Developments 16mSpeaker: Georg Schnabel (IAEA)
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08:34
Using ML to find root causes for discrepancies in experimental data underlying the new 252Cf PFNS Standard 16mSpeaker: Denise Neudecker (Los Alamos National Laboratory, Theoretical Division)
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08:50
A Data-driven Approach to Credible Uncertainty Quantification in the RRR 16mSpeaker: Vladimir Sobes (University of Tennessee)
- 09:06
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09:22
Bayesian Model Mixing and the Bayesian Analysis of Nuclear Dynamics (BAND) Software Framework 16mSpeaker: Daniel Philips (U. Ohio)
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09:38
The BAND approach to optical potentials 16mSpeaker: Kyle Beyer (University of Michigan)
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09:54
Break 10m
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10:04
Covariances for the LLNL Pu239 Evaluation 16mSpeaker: Andre Sieverding (LLNL)
- 10:20
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10:36
Inference of Photonuclear Theory Parameter Covariances Using ML-Enabled MCMC 16mSpeaker: Noah Walton (LANL)
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10:52
Impact of cross section and fission yield uncertainties on the fuel inventory in a high temperature fluoride salt-cooled reactor 16mSpeaker: Friederike Bostelmann (Oak Ridge National Laboratory)
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11:08
Gaussian Mixture Models (GMM) for data and covariance evaluations: a phonon density of states case study 16mSpeaker: Goran Arbanas (Oak Ridge National Laboratory)
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11:24
Progress on Light Water TSL Covariance 16mSpeaker: Chris Chapman (Oak Ridge National Laboratory)
- 11:40
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08:00
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12:00
→
13:40
Executive Committee Meeting 1h 40m B (Berkner Hall)
B
Berkner Hall
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12:00
→
13:40
Lunch 1h 40m
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13:40
→
16:54
Evaluation: Evaluation (Neutrons)
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13:40
Introduction 12mSpeaker: Mark Chadwick (Lanl)
- 13:52
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14:04
New INDEN Pu-239 evaluation: Improving scattering cross sections 5mSpeaker: Roberto Capote (IAEA NDS)
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14:09
Actinide nubar and PFNS evaluations 5mSpeaker: Denise Neudecker (Los Alamos National Laboratory, Theoretical Division)
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14:14
New Pu-240 evaluation in the fast range 5mSpeaker: Nathan Gibson (Los Alamos National Laboratory)
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14:19
URR challenges: Update to the Fe-56 evaluation 5mSpeaker: Prof. Andrej Trkov (Jozef Stefan Institute)
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14:24
Updates on the 90,91Zr evaluations at RPI 5mSpeaker: Greg Siemers (Rensselaer Polytechnic Institute)
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14:29
Zr-90/91 URR evaluations 5mSpeaker: Alec Golas
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14:34
Recent and planned updates to neutron standards for ENDF/B-IX.0 from R-matrix evaluations 5mSpeaker: Mark Paris (LANL T-2)
- 14:39
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14:44
Photo and Break 30m
- 15:14
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15:19
Photonuclear evaluations of major actinides 5mSpeaker: Kostas Kravvaris (LLNL)
- 15:24
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15:29
Impact of the temperature dependent lattice constants and extinction on keff 5mSpeaker: Dr Kemal Ramic (Oak Ridge National Lab)
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15:34
Experimentally validated machine learned potentials for next ENDF release 5mSpeaker: Dr Kemal Ramic (Oak Ridge National Lab)
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15:39
Introduction 10mSpeaker: Roberto Capote (IAEA NDS)
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15:49
Panel Discussion 1h
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13:40
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08:00
→
12:00
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-
08:00
→
12:00
Validation
-
08:00
Welcome 5mSpeakers: Michael Zerkle (Bettis Atomic Power Laboratory), Dr Michael Zerkle (Naval Nuclear Laboratory)
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08:05
LANL Validation Results of Recently Released Libraries 15mSpeaker: Noah Kleedtke (LANL)
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08:20
NNL Validation Testing 15mSpeaker: Linden Cotchen (NNL)
- 08:35
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08:50
LLNL Testing of ENDF/B-VIII.1 with the COG Validation Suite 15mSpeaker: Jesse Norris (Lawrence Livermore National Laboratory)
- 09:05
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09:20
Nuclear Data Testing at Studsvik Scandpower 15mSpeaker: Charles Wemple (Studsvik Scandpower Inc.)
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09:35
MCNP6.3 and OpenMC testing of the ENDF/B-VIII.1 Graphite TSLs using FUND-ORELA-ACC-GRAPH-PNSDT-001 benchmark 15mSpeaker: Dr Kemal Ramic (Oak Ridge National Lab)
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09:50
NCSU/ORELA Neutron Thermalization in Graphite ICSBEP Benchmark - LLNL COG Results 15mSpeakers: David Heinrichs (LLNL), Soon Kim (Lawrence Livermore National Laboratory)
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10:05
MC21 Testing of the ENDF/B-VIII.1 Graphite TSLs in the ORELA PNSDT Benchmark 15mSpeakers: Jason Thompson (NNL-KAPL), Jason Thompson (NNL)
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10:20
Break 10m
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10:30
TSL Validation using HTR-PROTEUS 15mSpeaker: Dr John Bess (JFoster & Associates, LLC)
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10:45
Update on New ICSBEP Evaluations 15mSpeaker: Catherine Percher (Lawrence Livermore National Laboratory)
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11:00
Data Testing of ENDF/B-VIII.2 Beta Chlorine with ICSBEP 15mSpeaker: Eric Aboud (LLNL)
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11:15
Source Modelling in the LLNL Pulsed Spheres 15mSpeaker: Tim Gaines (AWE Plc)
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11:30
Benchmarking and Validation of Gamma-Producing Nuclear Data For Well Logging 15mSpeaker: Bor Kos (Baker Hughes)
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11:45
Potential for Validation Data from Radioisotope Production at ORNL 15mSpeaker: William Marshall (Oak Ridge National Laboratory)
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08:00
-
12:00
→
13:00
Lunch 1h
-
13:00
→
13:15
Validation
- 13:00
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13:15
→
15:00
Special Topic: Inventory Library
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13:15
Welcome 10mSpeaker: Andre Sieverding (LLNL)
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13:25
Activation Library Use in Target Design and Analysis for Radioisotope Production at ORNL 15mSpeaker: William Marshall (Oak Ridge National Laboratory)
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13:40
Nuclide inventory validation: effect of nuclear data libraries 15mSpeaker: Germina Procop (ORNL)
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13:55
Impact of cross section and fission yield uncertainties on fuel inventory for a molten salt fast reactors 15mSpeaker: Germina Procop (ORNL)
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14:10
Reaction theory and workflow developments at LLNL 15mSpeaker: Jeff Berryman (LANL)
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14:25
Reaction theory developments at LANL 15mSpeaker: Amy Lovell (Los Alamos National Laboratory)
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14:40
Discussion 20m
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13:15
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08:00
→
12:00
