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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

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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

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

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  • 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
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