ANS 2023 Winter Meeting

Washington, D.C., November 12-15, 2023

Program Description

Data, Analysis, and Operations in Nuclear Criticality Safety: I
Organizer: Benjamin Martin
Chair: Tracy E. Stover
Alternate Chair: Amy E. van der Vyver

Assessing the Impact of Sensitivity/Uncertainty Selection Criteria on Computational Bias Prediction
K. Lisa Reed (ORNL), W.J. Marshall (ORNL), V. Karriem (ORNL)

Evaluation of Thermal Neutron Scattering Cross Section of Uranium Silicide with Ab Initio Lattice Dynamics
Junhyoung Gil (NCSU), Ayman I. Hawari (NCSU)

Criticality Safety Control Strategy for the Surplus Plutonium Disposition Project
Tracy E. Stover (Savannah River Nuclear Solutions), Marvin H. Barnett (Savannah River Nuclear Solutions), Ulric Groves (Savannah River Nuclear Solutions)

Phonon-Informed Neural Thermal Scattering (NeTS) Optimization for Crystalline Graphite and Beryllium Metal
J.P.W. Crozier (NCSU), A.I. Hawari (NCSU)

Investigation of the Impact of TSL Data Libraries on the MSRE Benchmark
Aidana Bauyrzhan (NCSU), Ayman I. Hawari (NCSU)

Industry NCS Spent Fuel Storage Reg Guide 1.240
Organizer: David S. Orr
Chair: David S.Orr
Alternate Chair: Benjamin Martin

Representatives of nuclear power plant licensees and the NRC will present recent history of new and spent fuel pool criticality analyses and licensing basis, focusing on recent experiences, challenges, and successes in analyses and licensing actions (i.e. License Amendment Requests) while working with the recently promulgated NRC Regulatory Guide 1.240, Fresh and Spent Fuel Pool Criticality Analyses. Reg Guide 1.240 represents the culmination of a concerted industry and NRC effort to address many issues related to SFP criticality analyses and is a great step forward in this area.

Critical and Subcritical Experiments: I
Organizer: Benjamin Martin
Chair: Kristin N. Stolte
Alternate Chair: Jesse D. Norris

Neutron Noise Analysis of the Neptunium Subcritical Observation (NESO) Experiment
J. Hutchinson (LANL), A.R. Clark (LANL), T. Cutler (LANL), J. Lamproe (LANL), A. McSpaden (LANL), N. Thompson (LANL)

The Jupiter High-240 Experiment
John D. Bess (JFoster & Assoc.), Alexander B. Brown (LANL), Alexander T. McSpaden (LANL), Joetta M. Goda (LANL), Travis J. Grove (LANL), Geordie McKenzie (LANL), Rene G. Sanchez (LANL), Jessie L. Walker (LANL)

Neutron Absorber Plate Characterization Plan for Criticality Experiments Design
Mathieu N. Dupont (ORNL), William J. Marshall (ORNL)

CAAS and Emergency Response Issues: I
Organizer: James S. Baker
Chair: Michael A. Fendler
Alternate Chair: James S. Baker

ANSI/ANS-8.3 Criteria and the use of Electronic Personal Detectors as a Criticality Accident Alarm System
James S. Baker (Spectra Tech), William Newmyer (21 Consulting Group)

Considerations for the use of Electronic Personal Detectors as a Criticality Accident Alarm System
James S. Baker (Spectra Tech), William Newmyer (21 Consulting Group)

Assessment of the Need for a Criticality Accident Alarm System in the Savannah River Plutonium Processing Facility
William Newmyer (21 Consulting Group), James S. Baker (Spectra Tech)

Criticality Accident Alarm System Needs Assessment for Surplus Plutonium Disposition Project
Tracy E. Stover (Savannah River Nuclear Solutions), Marvin H. Barnett (Savannah River Nuclear Solutions)

Mobile Plutonium Processing Facility Criticality Accident Alarm System Need Assessment
Marcus D. Harris (Savannah River Nuclear Solutions), Steven J. Nathan (Savannah River Nuclear Solutions)

ANS-8 Standards Forum
Organizer: Douglas G. Bowen (ORNL)
Chair: Douglas G. Bowen (ORNL)
Alternate Chair: Kevin H. Reynolds

The ANS-8 Forum allows the Nuclear Criticality Safety (NCS) community to learn about the consensus standards that are under development and what kinds of work items are being considered by the ANS-8 Subcommittee. ANS-8 working groups will also provide discussions about working group tasks and opportunities for stakeholders and volunteers to learn more about ANS-8 standards. Students and early-career individuals interested in standards are welcome to participate.

Critical and Subcritical Experiments: II
Organizer: Benjamin Martin
Chair: Theresa E. Cutler
Alternate Chair: Jesse D. Norris

Multiple Critical Unresolved Region Integral Experiment (MCURIE): A Proposed Integral Critical Experimental Framework for Unresolved Region and Intermediate Energies
Travis Grove (LANL), Theresa Cutler (LANL)

Design of Nuclear Criticality Safety Framework for Hands-on Construction of Fast Systems over Ranges of Multiplication
Luke Oukrop (LANL), Shripad Revankar (Purdue), Daniel Prestin (Purdue), Korie Berdine (Purdue), Nathan Tollett (Purdue), Travis Grove (LANL), Jessie Walker (LANL), Travis Smith (LANL)

Polymer Compositions in Critical Experiments: Possibly Not What You Think
Theresa Cutler (LANL), Travis Grove (LANL), Jesson Hutchinson (LANL)

CAAS and Emergency Response Issues: II
Organizer: James S. Baker
Chair: James S. Baker
Alternate Chair: Michael A. Fendler

Deviations from Criticality Accident Alarm System (CAAS) Requirements in Operational Facilities
David Kirkwood (Sellafield), Amy van der Vyver (Sellafield)

Demonstrating Adequate CAAS Coverage for GNF-A Fuel Facility at 8 wt.% 235U
James Banfield (Global Nuclear Fuel), Qi Ao (Boston Government Services), Lon Paulson (Global Nuclear Fuel)

Application of the ANSI/ANS-8.3-2022 Minimum Accident to Tube Vault Storage
Michael MacDonald (Consolidated Nuclear Security), Timothy Jackson (Consolidated Nuclear Security)

Experimental Testing of Personal Dosimetry Interference from a Portable X-ray Generator
Timothy Jackson (Y-12 National Security Complex), Jeff Preston (Y-12 National Security Complex), Nathaniel Johnson (Y-12 National Security Complex), Michael Macdonald (Y-12 National Security Complex)

Recent Nuclear Criticality Safety Program Technical Accomplishments
Organizer: Angela Chambers
Chair: Angela Chambers
Alternate Chair: Douglas G. Bowen

Progress Towards the Reality of Low-Temperature Critical Experiments with Low-Temperature TEX
Eric Aboud (LLNL), Jesse Norris (LLNL), Catherine Percher (LLNL), Nick Killingsworth (LLNL), Paul Yap-Chiongco (LLNL), Venkata Ravindra (National Nuclear Laboratory), Alfie O'Neill (National Nuclear Laboratory), Deborah Hill (National Nuclear Laboratory), Steve Graham (National Nuclear Laboratory)

Development of Shielding Benchmarks Using the Godiva IV Assembly
Riley Cumberland (ORNL)

Critical Experiments Targeting the Epithermal/Intermediate Cross Sections of Tantalum
David E. Ames (Sandia), Gary A. Harms (Sandia), Elijah Lutz (Sandia), Mathieu Dupont (ORNL)

Godiva IV Burst Reproducibility and Diagnostic Testing
Joetta M. Goda (LANL), Travis Grove (LANL), Bruce Pierson (PNNL), Danielle Redhouse (Sandia), Robert A. Weldon Jr. (LANL)

Preliminary Analysis of the LLNL Measurements for the Joint LLNL, LANL, and IRSN High Multiplication Subcritical Measurements
Jesse Norris (LLNL)

Data, Analysis, and Operations in Nuclear Criticality Safety: II
Organizer: Benjamin Martin
Chair: John A. Miller
Alternate Chair: Amy E. van der Vyver

ANS-8 Nuclear Criticality Safety Consensus Standards -- Current Initiatives
Douglas G. Bowen (ORNL)

Coupling SCALE with DAKOTA for Axial Burnup Profiles Assessment in Burnup Credit
Veronica Karriem (ORNL), Robert Lefebvre (ORNL), William Marshall (ORNL)

SFP Criticality Code Validation for ATF and LEU+
Michael Wenner (Westinghouse Electric Co.), Robert Hall (EPRI), Hatice Akkurt (EPRI)

Thermal Scattering Law Data Development for Paraffin Wax
T. Ahmed (NCSU), B.K. Laramee (NCSU), A.I. Hawari (NCSU)

Accelerated Basin De-Inventory and Spent Fuel Project Criticality Safety
Amanda Szasz (Savannah River Nuclear Solutions)