Nuclear Data Week 2025

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

6 Jan 2026, 08:00 → 9 Jan 2026, 18:00 US/Eastern

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

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

Tuesday 6 January
- NDAG
- Analytical Methods Working Group: AMWG
- 12:30
  
  Lunch
- 1
  
  Welcome
  
  Speakers: David Brown (NNDC-BNL), Dr Martin Schoonen (BNL)
- 2
  
  CSEWG 101
  
  Speaker: David Brown (NNDC-BNL)
- 3
  
  ENDF Library Update
  
  Speaker: Gustavo Nobre (BNL)
- Evaluation: Fission Products Yields and Decay Data
  - 4
    
    Update on the FY compilation effort at BNL
    
    Speaker: Andrea Mattera (BNL)
  - 5
    
    TBD
    
    Speaker: Alejandro Sonzogni (NNDC - BNL)
  - 6
    
    TBD
    
    Speaker: Amy Lovell (Los Alamos National Laboratory)
  - 15:00
    
    Break
  - 7
    
    Updating GEANIE Experimental Data by Evaluated Fission Product Yields, and Los Alamos CoH-based Evaluation (LACE) Framework
    
    Speaker: Toshihiko Kawano (Los Alamos National Laboratory)
  - 8
    
    LLNL FPY Modeling and Evaluation
    
    Speakers: Ramona Vogt, Ramona Vogt (LLNL and UC Davis)
  - 9
    
    Fission product yield data for basic physics research and applications
    
    Speaker: Anton Tonchev (LLNL)
Wednesday 7 January
- Formats and Processing
  - 10
    
    Energy dependent fission yield covariance
    
    Speaker: Wim Haeck (LANL)
  - 11
    
    Disallowing interpolation on the current fission product yield data
    
    Speaker: Wim Haeck (LANL)
  - 12
    
    Standardisation of reaction identifiers for GNDS and linking to ENDF MT nomenclature.
    
    Speaker: Wim Haeck (LANL)
  - 13
    
    TSL Format discussions
    
    Speaker: Chris Chapman (Oak Ridge National Laboratory)
  - 14
    
    Depletion Data (or the Lack Thereof) in ENDF Data Files
    
    Speaker: Charles Wemple (Studsvik Scandpower Inc.)
  - 15
    
    Minor ENDF manual changes
    
    Speakers: David Brown (NNDC-BNL), Dorothea Wiarda (ORNL), Gustavo Nobre (BNL)
  - 16
    
    File 32/File 33 covariance mixing
    
    Speakers: Dorothea Wiarda (ORNL), Jordan McDonnell (UT-Battelle), Dr Marco Pigni (ORNL)
  - 17
    
    Unifying the ENDF free text documentation formats
    
    Speaker: David Brown (NNDC-BNL)
  - 18
    
    NJOY
    
    Speaker: Wim Haeck (LANL)
  - 19
    
    AMPX
    
    Speaker: Jordan McDonnell (UT-Battelle)
  - 10:00
    
    Break
  - 20
    
    FUDGE
    
    Speaker: Caleb Mattoon (Lawrence Livermore National Lab)
  - 21
    
    NDEX
    
    Speaker: Jason Thompson (NNL-KAPL)
  - 22
    
    ADVANCE
    
    Speaker: Coles Rebecca (BNL)
  - 23
    
    SAMMY
    
    Speaker: Dorothea Wiarda (ORNL)
  - 24
    
    GNDS Updates
    
    Speaker: Caleb Mattoon (Lawrence Livermore National Lab)
- 12:00
  
  Lunch
- Measurements
  - 25
    
    Measurements with DICER at LANSCE
    
    Speaker: Thanos Stamatopoulos (Los Alamos National Laboratory)
  - 26
    
    Update on Recent Cl-35(n,p) LENZ Measurements into the RRR
    
    Speaker: Kenneth Hanselman (LANL)
  - 27
    
    Recent measurements of 235U, 238U, 239Pu, and 240Pu photofission cross sections in the region of the Giant Dipole Resonance
    
    Speaker: Anton Tonchev (LLNL)
  - 28
    
    Thermal Transmission measurements
    
    Speaker: Dr Kemal Ramic (Oak Ridge National Lab)
  - 29
    
    Recent Work on Neutron Standards
    
    Speaker: Allan Carlson (NIST)
  - 30
    
    Recent Zr-88 and Xe-135 measurements
    
    Speaker: Will Flanagan (UT)
  - 15:10
    
    Break
  - 31
    
    Hafnium High-Energy Quasi Differential Scattering
    
    Speaker: Adam Daskalakis (Naval Nuclear Laboratory)
  - 32
    
    Zr measurements at GELINA
    
    Speaker: Klaus Guber (Oak Ridge National Laboratory)
  - 33
    
    Nuclear Data measurements at RPI
    
    Speaker: Yaron Danon (Rensselaer Polytechnic Institute)
  - 34
    
    Recent Results from GENESIS
    
    Speakers: Bethany Goldblum (Lawrence Berkeley National Laboratory), Thibault Laplace (University of California Berkeley)
  - 35
    
    The present status of the EXFOR project
    
    Speaker: Boris Pritychenko (NNDC, BNL)
  - 36
    
    Thermal scattering measurements from graphite
    
    Speaker: Dr Kemal Ramic (Oak Ridge National Lab)
  - 37
    
    Nuclear data measurements of Ni and Cr capture gamma-rays
    
    Speaker: Shuya Ota (Brookhaven National Laboratory)
  - 38
    
    Mn, Cu, Fe capture gammas at thermal
    
    Speaker: Marian Jandel (University of Massachusetts, Lowell, MA)
Thursday 8 January
- Covariances
  - 39
    
    Introduction
    
    Speaker: Denise Neudecker (Los Alamos National Laboratory, Theoretical Division)
  - 40
    
    TBD (Ta181 Covariance)
    
    Speaker: jesson hutchinson (LANL)
  - 41
    
    TBD (Standards)
    
    Speaker: Georg Schnabel (IAEA)
  - 42
    
    Using ML to find root causes for discrepancies in experimental data underlying the new 252Cf PFNS Standard
    
    Speaker: Denise Neudecker (Los Alamos National Laboratory, Theoretical Division)
  - 43
    
    TBD (model UQ RRR)
    
    Speaker: Vladimir Sobes (University of Tennessee)
  - 44
    
    TBD (exp. UQ and eval. in the URR)
    
    Speakers: Cole Fritsch (UTK), Noah Walton (LANL)
  - 45
    
    Bayesian Model Mixing and the Bayesian Analysis of Nuclear Dynamics (BAND) Software Framework
    
    Speaker: Daniel Philips (U. Ohio)
  - 46
    
    The BAND approach to optical potentials
    
    Speaker: Kyle Beyer (University of Michigan)
  - 09:47
    
    Break
  - 47
    
    Covariances for the LLNL Pu239 Evaluation
    
    Speaker: Andre Sieverding (LLNL)
  - 48
    
    Adjustment of Pu239 Evaluation Using Bayesian Inference
    
    Speaker: Marc Salinas
  - 49
    
    TBD (AI/ML for photo-induced eval.)
    
    Speakers: Ajeeta Khatiwada (LANL), Ajeeta Khatiwada (LANL)
  - 50
    
    TBD (photo-induced eval. and cov.)
    
    Speaker: Noah Walton (LANL)
  - 51
    
    TBD (inventory studies using cov.)
    
    Speaker: Friederike Bostelmann (Oak Ridge National Laboratory)
  - 52
    
    Gaussian Mixture Models (GMM) for data and covariance evaluations: a phonon density of states case study
    
    Speaker: Goran Arbanas (Oak Ridge National Laboratory)
  - 53
    
    TBD (TSL cov.)
    
    Speaker: Chris Chapman (Oak Ridge National Laboratory)
  - 54
    
    TBD (FPY cov.)
    
    Speaker: Amanda Lewis (LANL)
- 12:00
  
  Group photo
- 12:20
  
  Executive Committee Meeting
- 12:20
  
  Lunch
- Evaluation: Evaluation (Neutrons)
Friday 9 January
- Validation
  - 55
    
    Welcome
    
    Speakers: Michael Zerkle (Bettis Atomic Power Laboratory), Dr Michael Zerkle (Naval Nuclear Laboratory)
  - 56
    
    LANL Validation Results of Recently Released Libraries
    
    Speaker: Noah Kleedtke (LANL)
  - 57
    
    NNL Validation Testing
    
    Speaker: Linden Cotchen (NNL)
  - 58
    
    MC21 Testing of the ENDF/B-VIII.1 Graphite TSLs in the ORELA PNSDT Benchmark
    
    Speakers: Jason Thompson (NNL-KAPL), Jason Thompson (NNL)
  - 59
    
    ORNL Validation Testing
    
    Speaker: Travis Greene (ORNL)
  - 60
    
    LLNL Testing of ENDF/B-VIII.1 with the COG Validation Suite
    
    Speaker: Jesse Norris (Lawrence Livermore National Laboratory)
  - 61
    
    AWE Validation Testing
    
    Speaker: Mark Cornock (AWE.Plc)
  - 62
    
    Nuclear Data Testing at Studsvik Scandpower
    
    Speaker: Charles Wemple (Studsvik Scandpower Inc.)
  - 63
    
    Update on New ICSBEP Evaluations
    
    Speaker: Catherine Percher (Lawrence Livermore National Laboratory)
  - 10:15
    
    Break
  - 64
    
    Data Testing of ENDF/B-VIII.2 Beta Chlorine with ICSBEP
    
    Speaker: Eric Aboud (LLNL)
  - 65
    
    Source Modelling in the LLNL Pulsed Spheres
    
    Speaker: Tim Gaines (AWE Plc)
  - 66
    
    Benchmarking and Validation of Gamma-Producing Nuclear Data For Well Logging
    
    Speaker: Bor Kos (Baker Hughes)
  - 67
    
    Potential for Validation Data from Radioisotope Production at ORNL
    
    Speaker: William Marshall (Oak Ridge National Laboratory)
  - 68
    
    First Look at use of PARADIGM for ND Validation
    
    Speaker: Peter Brain (LANL)
- 12:00
  
  Lunch
- Special Topic: Inventory Library
  - 69
    
    Welcome
    
    Speaker: Andre Sieverding (LLNL)
  - 70
    
    Activation Library Use in Target Design and Analysis for Radioisotope Production at ORNL
    
    Speaker: William Marshall (Oak Ridge National Laboratory)
  - 71
    
    Nuclear data needs for activation in inertial confinement fusion
  - 72
    
    Impact of cross section and fission yield uncertainties on fuel inventory for a molten salt fast reactors
    
    Speaker: Germina Procop (ORNL)
  - 73
    
    Nuclide inventory validation: effect of nuclear data libraries
    
    Speaker: Germina Procop (ORNL)
  - 74
    
    Reaction theory developments at LANL
    
    Speaker: Amy Lovell (Los Alamos National Laboratory)
  - 75
    
    Reaction theory and workflow developments at LLNL
  - 76
    
    Discussion
- 15:00
  
  Break