ANS 2023 Summer Meeting

Indianapolis, IN, June 11-14, 2023

Program Description

Data, Analysis, and Operations in Nuclear Criticality Safety: I
Organizer: Benjamin Martin
Chair: Tom Stockman
Alternate Chair: Tracy E. Stover

Average Scattering Angle Cosine Sensitivities
Jeffrey A. Favorite (LANL), D. Kent Parsons (LANL)

Design of Sub-Critical Lead Reflected Experiments for Nuclear Data Validation
Peter Brain (Rensselaer Polytechnic Institute), Wei Ji (Rensselaer Polytechnic Institute), Yaron Danon (Rensselaer Polytechnic Institute), Alex McSpaden (LANL), Jesson Hutchinson (LANL)

Incorporating Nuclear Criticality Safety into Process or Facility Design
Lon E. Paulson (GE Hitachi Nuclear Energy)

Sub-Critical Measurements of Large Uranium Process Vessel
Robert Wilson (U.S. Dept. of Energy)

Similarity of Fast and Thermal Spectrum Graphite Moderated Systems Through the Unique Physics of n + 12C
Gabriel Lentchner (Univ. Tennessee, Knoxville), Kathryn Worrell (Univ. Tennessee, Knoxville), Nader Satvat (Kairos Power), BJ Marshall (ORNL), Vladimir Sobes (Univ. Tennessee, Knoxville)

Sharing of Good Industry Practices and/or Lessons Learned in Nuclear Criticality Safety
Organizer: Deborah A. Hill
Chair: Deborah A. Hill
Alternate Chair: Benjamin Martin

Fundamental to the successful operation of any nuclear site is a first-class safety culture that strives to continually improve in response to good industry practices and operating experience feedback. Following some anecdotal evidence on both the importance but also the challenges of sharing learning, some information will be provided on an international effort to develop a Criticality Safety "Learning From Experience" (LFE) database. Audience members will be provided with the opportunity to feedback on the database and shape its future development.

Data, Analysis, and Operations in Nuclear Criticality Safety: II
Organizer: Benjamin Martin
Chair: Kristan M. Wessels
Alternate Chair: Benjamin Martin

An Assessment of the SRNS Criticality Safety Summer Intern Program
Tracy Stover (Savannah River Nuclear Solutions)

Internal Collaboration on Recent Nuclear Criticality Safety Assessments
Theresa Cutler (LANL), James J. Kuropatwinski (LANL)

Preliminary Design of Critical Experiments Involving Commercially Available B4C Neutron Absorber Plates with Low-Enriched UO2 fuel
Mathieu N. Dupont (ORNL), William J. Marshall (ORNL), Justin B. Clarity (PNNL)

Status of HEU-Pb in the International Criticality Safety Benchmark Evaluation Project (ICSBEP) Handbook
Kelsey Amundson (LANL)

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

Subcommittee ANS-8, Operations with Fissile Material Outside Reactors, meets to discuss various technical and administrative aspects of the approximately 20 national consensus standards under its purview. In addition to status and progress updates by representatives of individual working groups, formal presentations on the technical bases of numerical values such as subcritical limits and experiences with applications of particular standards are solicited. Agenda topics such as new and expanded standards are also encouraged.

Data, Analysis, Operations in Nuclear Criticality Safety: III
Organizer: Benjamin Martin
Chair: Walid Metwally (ORNL)
Alternate Chair: Benjamin Martin

Impact of Thermal Scattering Law on Similarity Assessment in Light-Water or Polyethylene-Moderated Systems
Travis M. Greene (ORNL), William J. Marshall (ORNL), Alexander Lang (ORNL), Travis Zipperer (PNNL)

Flattop Benchmark Reevaluation Update
Kristin Stolte (LANL), Theresa Cutler (LANL), Dave Hayes (LANL)

Ab Initio Evaluation of Plutonium Dioxide S(α,β) and Thermal Neutron Cross Sections
J.P.W. Crozier (NCSU), A.I. Hawari (NCSU)

Impact of Cross Section Libraries on Loading Curves for Burnup Credit Criticality Safety Analysis Models
Rabab Elzohery (ORNL), Germina Ilas (ORNL)

ANS-8 Standards
Organizer: Douglas G. Bowen
Chair: Mandy Bowles Tomaszewski
Alternate Chair: Douglas G. Bowen

Adjustment-Controlled GLLSM Applications for Nuclear Criticality Safety Analysis
Jeongwon Seo (Purdue), Hany Abdel-Khalik (Purdue)

Conduct of Operations and Nuclear Criticality Safety Standards
Douglas G. Bowen (ORNL)

NCS Issues Related to HALEU
Organizer: Lon E. Paulson
Chair: Walid A. Metwally
Alternate Chair: Lon E. Paulson

The Deimos Experiment: Advanced Reactor Testbed
Theresa Cutler (LANL), Justin Lee (LANL), Erik Luther (LANL), Alexis Maldonado (LANL), Rene Sanchez (LANL), Kristin Stolte (LANL), Holly Trellue (LANL), Nicholas Wynne (LANL)

Optimization of Deimos Design and Advanced Modeling Techniques
Kristin Stolte (LANL), Theresa Cutler (LANL), Rene Sanchez (LANL), Holly Trellue (LANL), Colin Josey (LANL)

Incorporating NCS into Design
Organizer: Joseph A. Christensen
Chair: Theresa E. Cutler
Alternate Chair: Brittany M. Williamson

Implementation of changes in the U.S. nuclear fuel cycle for emerging needs such as high-assay low-enriched uranium, advanced fuel types, advanced medical isotopes, and plutonium processing will require new facilities and their associated processes and equipment. Integration of nuclear criticality safety (NCS) principles, limits, and controls should be incorporated early in the design process. This session will include papers which address the new strategies which may be employed to integrate NCS into the design process, operating experience and lessons learned from past design projects, and the associated risks and challenges faced by NCS practitioners during the design processes.