Nuclear Criticality Safety Program (NCSP) Technical Program Review - FY25

March 3–5, 2026
Hosted by: Oak Ridge National Laboratory

 

NCSP Management Team

Angela Chambers, DOE NNSA (NA-ESH-21), NCSP Program Manager
Doug Bowen, ORNL, Execution Manager
John Miller, Sandia, IE Manager
Contact the team: ncsp-mgmt [at] ornl.gov (ncsp-mgmt[at]ornl[dot]gov)

 

Welcome
Angela Chambers (NCSP) Welcome from NCSP
Doug Bowen (ORNL) The Purpose of the DOE/NNSA Nuclear Criticality Safety Program Technical Program Review
Susan Hubbard (ORNL) Welcome from Oak Ridge National Laboratory
Kevin Reynolds (NCSP) CSSG FY2025 Overview
Mike Zerkle (NCSP) NDAG FY2025 Overview

 

NCSP Manager Invited Site Reports
Joetta Goda (LANL) LANL FY2025 NCSP Highlights
William Hall (MSTS) NNSS Support Activities FY2025
Catherine Percher (LLNL) LLNL FY25 Overview and Accomplishments
Alex Lang (ORNL) ORNL NCSP FY2025 Budget Summary and Highlights
Travis Zipperer (PNNL) PNNL Budget Summary and Highlights
Yaron Danon (RPI) NCSP Related Nuclear Data Research at RPI
David Ames (SNL) Sandia Site Report
Scott Finfrock (SRS) SRS Activity Summary and CritView Status Report
Kevin Reynolds (Y-12) Y-12 Task Manager FY2025 Summary
Gustavo Nobre (BNL) BNL Site Report for the NCSP Technical Program Review
Tim Valentine (ORNL) Radiation Safety Information Computational Center (RSICC)

 

International Collaborations
Matthew Harker (AWE) International Collaborations AWE UK
Michael Prigniau (CEA) Overview of CEA activities in nuclear criticality safety
Julien Taforeau (ASNR) ASNR work in support to NCSP: FY2025

 

FY2025 Analytical Methods (AM) Technical Presentations
Caleb Mattoon (BNL/LLNL)
BNL-AM4, LLNL-AM4
Retrospective and Impact of NCSP-Funded Improvements to the LLNL/BNL FUDGE Data Processing Code
Mike Rising, Wim Haeck (LANL)
LANL-AM1
FY25 MCNP® Updates for the Nuclear Criticality Safety Program
Wim Haeck (LANL)
LANL-AM2
NJOY Development and Maintenance / Uncertainty Analysis Development / Modernization / etc.
Kursat Bekar (ORNL)
ORNL-AM2
SCALE Activities in FY2025
Jordan McDonnell (ORNL)
ORNL-AM3
AMPX Developments in FY2025
Travis Greene (ORNL)
ORNL-AM17
Status of the Verified, Archived, Library of Inputs and Data (VALID)
Mathieu Dupont for Jeremy Bez (IRSN, LANL, LLNL, ORNL, Y12)
IRSN-AM13, LANL-AM5, LLNL-AM5, NNL-AM1, ORNL-AM10, Y12-AM1
International Benchmark Comparison for shielding calculations : analysis and conclusions
Travis Zipperer (PNNL), Alex Lang (ORNL)
PNNL-AM1, ORNL-AM18
Sum-of-Fractions for Dry and Low-Moderated Systems

 

FY2025 Information Preservation And Dissemination (IPD) Technical Presentations
Veronica Karriem (ORNL)
ORNL-IPD4
Current efforts on the criticality safety LfE database
Catherine Percher (LLNL)
LLNL-IPD1
LLNL IPD Task Updates
Joetta Goda (LANL)
LANL-IE14
Control Room Upgrade Project Completion

 

FY2025 Integral Experiments (IE) Technical Presentations —
Strategic Priorities IERs
Peter Brain (LANL)
LANL IE3
IER 607: THALES: Ta- Reflected Pu Experiments
Alex McSpaden (LANL)
LANL IE3
IER 153: PFUNS Execution and Preliminary Analysis
Zach Lemke (LANL)
LANL IE3
IER 537: CERBERUS I - Completed Benchmark and a Look to the Future
Jeff Favorite (LANL)
LANL IE3
IER 555: Godiva IV Benchmark Update
Rene Sanchez (LANL)
LANL IE33
IER 296: MOX experiment with ASNR
Nick Whitman (LANL, AWE)
LANL IE33
IER 605: CAAS Testing with AWE and Mirion
Eric Aboud (LLNL)
LLNL IE1
IER 499: Benchmark Evaluation and Data Testing with TEX-Cl Configurations
Rene Sanchez (LANL, LLNL)
LANL IE33, LLNL IE1
IER 519: TEX-Pu-Hanford Update
David Ames (SNL, ORNL)
SNL IE1b, ORNL IE1
IER 441: Completion of Epithermal Tantalum Experiments
David Ames (SNL, ORNL)
SNL IE1b, ORNL IE1
IER 304: Progress on Procurement Activates for Temperature Experiments at SPRF/CX
Geordie McKenzie (LANL)
LANL IE33
IER 479: A update on the Low Temperature TEX Experiment
Eric Aboud, Jesse Norris (LLNL)
LLNL IE1
IER 479: Update on Low Temperature TEX
Jacob Glesmann (LLNL)
LLNL IE1
IER 575: Final Design of TEX-Li

 

IE Tasks & Core IERs from the NCSP IE 5-Year Plan
Geordie McKenzie (LANL)
LANL IE35
1FRAME: 1F Fuel Retrieval and Monitoring Experiments
Julien Taforeau (ASNR)
ASNR IE60
ASNR work on criticality issues during Fukushima Daichi reactors debris removal
Chantel Nowlen Peterson, Jason Soares (SNL)
SNL IE1a
Installation of SPRF/CX Digital Indications and Plant Protection System Upgrade
Augie Chapa, Patrick Ward (SNL)
SNL IE1a
SPRF/CX Improvements: 7uPCX Lower Grid Plate Redesign and Fabrication of Backup Control and Safety Elements
Elijah Lutz (SNL), Mathieu Dupont (ORNL)
SNL IE1b, ORNL IE1
IER 554: Preparing for Neutron Absorber Plate Experiments at SPRF/CX
Elijah Lutz (SNL)
SNL IE1b
IER 523: Final Design of UO2-BeO Fuel with 7uPCX Experiments
Jesse Norris (LLNL)
LLNL IE1
IER 518: Update on HiMu (High Multiplication Subcritical Assembly Measurements at Sandia) Benchmark
Ruby Araj (LLNL)
LLNL IE1
IER 580: Benchmark Evaluation of the Pulsed Neutron Die-Away Measurements with Water Targets
Juliann Lamproe (LANL)
LANL IE3
IER 121: The Neptunium Sphere and NeSO Experiment Publications" to "IER 121: Np Sphere Characterization Effects on NeSO
Greg Siemers (LANL)
LANL IE3
IER 516: Zirconium Test Assembly
Miriam Kreher (LANL)
LANL IE3
IER 567: MUSiC Subcritical NoMAD Leakage Multiplication Benchmark Results
Robert Weldon (LANL)
LANL IE3
IER 574: Godiva-IV Spectrum Characterization Update
David Shepard (LANL)
LANL IE3
IER 578: Jupiter ZPPR High Pu-240
Mathieu Dupont (ORNL)
ORNL-IE1
ORNL FY25 Integral Experiment Work

 

FY2025 Training and Education (TE) Technical Presentations
Doug Bowen (ORNL)
ORNL-TE1
ORNL NCSP Training and Education Support for FY 2025
Alex Lang (ORNL)
ORNL-TE14
Status Update of the Nuclear Criticality Safety Training and Pipeline Program
Alex Lang (ORNL)
ORNL-TE15
Oak Ridge Subcritical Assembly Status Update

 

FY2025 Nuclear Data (ND) Technical Presentations
Gustavo Nobre (BNL)
BNL-ND1
National Nuclear Data Center (NNDC) Support to the NCSP
Rebecca Coles (BNL)
BNL ND1
ADVANCE: Continuous Integration and Automated Analysis for ENDF
Jesse Brown (ORNL)
ORNL-ND1, ORNL-ND3
ORNL ND1 Measurements: Zr-92
Luiz Leal (ORNL)
ORNL-ND2
Resonance Evaluation for Criticality Safety Applications
Marco Pigni (ORNL)
ORNL-ND2
FY25 ORNL ND2 evaluation updates
Jordan McDonnell (ORNL)
ORNL-ND2
ORNL FY2025 Nuclear Data Evaluation Contributions: 14N and 63,65Cu
Jesse Brown (ORNL)
ORNL-ND6
Recent SAMMY Developments
Chris Chapman (ORNL)
ORNL-ND9
TSL/RRR Evaluations of UO2 & PuO2 - FY2025 Status
Kemal Ramic, Jesse Brown (ORNL)
ORNL-ND12
Development of Neutron Transmission Capabilities at SNS
Greg Siemers (RPI)
RPI-ND1
Zr-90 and Zr-91 RRR and Fast Energy Range Evaluation
Alec Golas (RPI)
RPI-ND1
URR Evaluation of Zr-90 and 91 and Improvement to SAMMY URR Data Analysis
Denise Neudecker (LANL)
LANL-ND1
Evaluations of neutron-induced Pu and U's fission observables
Ionel Stetcu, Hiro Sasaki (LANL)
LANL-ND1
Evaluation Updates for Light, Medium, and Heavy Nuclei
Thanos Stamatopoulos (LANL)
LANL-ND2
The n + 133Cs experiment at DICER 
Esther Leal-Cidoncha (LANL)
LANL-ND2
133Cs(n,γ) measurement with DANCE
Sean Kuvin (LANL)
LANL-ND1
35Cl(n,p) at LENZ
Pavel Simeonov (TAMU)
TAMU-ND1
Progress on Thermal Scattering Law Research at Texas A&M University

 

FY25 Invited Talks & Technical Presentations
Trevor Omoto (LANL) NCERC count lab and its applications to NCSP experiments
Ramon Pulido (SNL) HALEU Fuel Procurement Efforts at SPRF/CX (DNSCH)
Iyad Al-Qasir (ORNL) Impact Assessment of Thermal Neutron Scattering Law on Neutron Multiplication Factor
Hany Abdel-Khalik (Purdue) Online platform for coverage quantification and experiment optimization
Denise Neudecker, Peter Brain (LANL) PARADIGM--Importance to NCSP
Joetta Goda (LANL) Revision of the Flattop-Plutonium Benchmark
KEYNOTE: Isaiah Taylor (Valar Atomics) Project NOVA
KEYNOTE: Brian Ade (Standard Nuclear) Standard Nuclear Overview and NCS Experience