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Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
Meeting Spotlight
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Christmas Night
Twas the night before Christmas when all through the houseNo electrons were flowing through even my mouse.
All devices were plugged in by the chimney with careWith the hope that St. Nikola Tesla would share.
Technical Session
Monday, July 22, 2024|5:00–7:00PM CDT|Wisconsin Ballroom
Session Chair:
Paul P. Wilson
Session Organizer:
Alternate Chair:
Ross F. Radel
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Characterizing the Plasma of an Inertial Electrostatic Confinement Device Operating with Argon for Space Propulsion Applications and Hydrogen for Aneutronic Fusion Systems
Rohan Puri (Univ. Illinois, Urbana-Champaign), Erik P. Ziehm (Univ. Illinois, Urbana-Champaign), George H. Miley (Univ. Illinois, Urbana-Champaign), Myles Y. Gong (Univ. Illinois, Urbana-Champaign)
Paper
Using ECE Diagnostics on ITER for NTM Detection and Studies of Magnetic Island Behavior
J.P. Ziegel (Univ. Texas, Austin), W.L. Rowan (Univ. Texas, Austin), F.L. Waelbroeck (Univ. Texas, Austin)
ITER Low-Field Side Reflectometer (LFSR) Test Antenna Block Assembly Trials
Chirag Patel (Princeton Plasma Physics Laboratory), Ali Zolfaghari (Princeton Plasma Physics Laboratory), Timothy Edgemon (Princeton Plasma Physics Laboratory), Wenping Wang (Princeton Plasma Physics Laboratory)
DIII-D Fiberoptic Bolometer Design and Installation
A. Dvorak (ORNL), S. Lee (ORNL), M. Shafer (ORNL), M. Han (Michigan State Univ.), X. Wang (Michigan State Univ.), M. Syed (Michigan State Univ.), Q. Sheng (Michigan State Univ.)
Filterscope Techniques for Parasitic Signal Screening
K. Butler (Univ. Tennessee, Knoxville), J.B.O. Caughman (ORNL), C.A. Johnson (ORNL), D.C. Easley (Univ. Tennessee, Knoxville), U.A. Unterberg (ORNL), D.C. Donovan (Univ. Tennessee, Knoxville)
Effects on Fueling Pellets from Erosion and Multiple Small Angle Impacts in a Gas Gun Type Pellet Injector
L.R. Baylor (ORNL), S.J. Meitner (ORNL), J.B. Caughman (ORNL), W.D. McGinnis (ORNL)
Implications of Cavity Geometry in a Modular Retarding-Field Energy Analyzer and Characterization of a Kaufman eH-400 Ion Source
Mason Phillips (Univ. Tennessee, Knoxville), Bingzhe Zhao (Univ. Tennessee, Knoxville), Jun Ren (Univ. Tennessee, Knoxville), David Donovan (Univ. Tennessee, Knoxville)
Advancing Fusion Component Design: Leveraging Uncertainty Quantification and Probabilistic Machine Learning for Optimised Material and Component Testing
Ross A.M. Allen (digiLab Solutions)
Electromagnetic Analysis of ITER Electron Cyclotron Emission Components and Support Structures
Jiarong Fang (Princeton Plasma Physics Laboratory), Orlando Pastor (Princeton Plasma Physics Laboratory), Jagrut Bhavsar (Princeton Plasma Physics Laboratory), Peter Titus (Princeton Plasma Physics Laboratory)
Palladium Hydride Isotherms Measured Using H2/D2 Mixtures for Temperatures 150 K < T < 393 K
M. Sharpe (Univ. Rochester)
Modeling tritium inventory in hypothetical designs Using MELCOR-TMAP
Adriaan A. Riet (INL), Matthew D. Eklund (INL)
Separation of Hydrogen from Helium using PdAg Membranes: Experimental and Modeling Results
Victoria Hypes-Mayfield (LANL), Lyra Troy (LANL), David Dogruel (LANL), William Kubic (LANL), Joseph H. Dumont (LANL)
Continued Testing and Modeling of the AirSquared All-Metal Tritium Scroll Pump
Trimetallic Ruthenium-Based Heterogenous Catalysts for Low Temperature Ammonia Cracking with Pd-Ag Permeation Membrane for Enhanced Tritium Removal
Christopher J. Koch (SRNL), Jennifer Naglic (Univ. South Carolina), Lucas Angelette (SRNL), Jochen Lauterbach (Univ. South Carolina), Tyler Guin (SRNL)
Shutdown Dose-Rate Analysis of Various Breeder Blanket Concepts
Nikolas G. Nelson (Univ. Tennessee, Knoxville), Son N. Quang (Univ. Tennessee, Knoxville), Nicholas R. Brown (Univ. Tennessee, Knoxville), G. Ivan Maldonado (Univ. Tennessee, Knoxville)
Design and Flow Analysis of Diagnostic Shield Module of ITER Upper Port 11
W. Wang (Princeton Plasma Physics Laboratory), L. Babu (ORNL), A. Jariwala (Princeton Plasma Physics Laboratory), S. Kalwale (ORNL), A. Istomin (ORNL), T. Becker (ORNL), M. Messineo (Princeton Plasma Physics Laboratory), T. Edgemon (Princeton Plasma Physics Laboratory)
Neutronics Analysis of ITER Upper Port Plug No. 11
B. Linn (Princeton Plasma Physics Laboratory), M. Harb (ORNL), A. Jariwala (Princeton Plasma Physics Laboratory)
Evaluation of the In-Vessel Radiation Conditions During ITER IVVS and DRHS Operations
Aljaz Kolsek (Fusion for Energy), Rafael Juarez (Univ. Nacional de Educacion a Distancia), Antonio Jesus Lopez Revelles (Univ. Nacional de Educacion a Distancia), Javier Alguacil (Univ. Nacional de Educacion a Distancia), Marco Fabbri (Fusion for Energy), Raul Pampin (Fusion for Energy), Gregory Dubus (Fusion for Energy), Javier Sanz (Univ. Nacional de Educacion a Distancia)
Neutronics and Activation Analysis of Aluminized RAFM Steel
Marina Rizk (Univ. Tennessee, Knoxville), Nicholas R. Brown (Univ. Tennessee, Knoxville), G. Ivan Maldonado (Univ. Tennessee, Knoxville)
Neutronics Considerations for the use of Entrained Hydride Shielding Materials in a Compact Tokamak
Jack Fletcher (MIT), Ethan Peterson (MIT), Lance Snead (Stony Brook Univ.)
Assessment of Shutdown Dose Rates from SPARC Diagnostic Ports during Maintenance and Casking Activities
Ian R. Miner (Commonwealth Fusion Systems), Allison Sawyer (MPR Assoc.), Megan Wart (Commonwealth Fusion Systems), Ryanne Kennedy (Commonwealth Fusion Systems)
Thermal Hydraulic Modeling of the Lobo Lead Loop with MOOSE
Son Quang (Univ. Tennessee, Knoxville), Nicholas Brown (Univ. Tennessee, Knoxville), G. Ivan Maldonado (Univ. Tennessee, Knoxville)
Flow Analysis of The MSTTE Flow Loop
Anthony G. Bowers (Univ. Massachusetts, Lowell), Subash L. Sharma (University of Massachusetts Lowell), Thomas F. Fuerst (INL)
Use of Deterministic Methods to Evaluate Detector Response Behind Deep Shield Penetrations
Erin Dubas (MPR Assoc.), Andrew Cooper (Silver Fir Software), Andrea Saltos (Commonwealth Fusion Systems), Ryanne Kennedy (Commonwealth Fusion Systems), Russell Gocht (Commonwealth Fusion Systems), Prasoon Raj (Commonwealth Fusion Systems), Ian Holmes (Commonwealth Fusion Systems)
Browser-Based Neutronics Simulation with Variance Reduction Using Cloud-Based Resources
S.J. Coleman (RadiaSoft), P. Romano (ANL), P. Shriwise (ANL), J. Tramm (ANL)
Physics Informed Plasma Profile Input for OpenMC Fusion Neutronics
B. Taczak (Univ. Tennessee, Knoxville), L. Casali (Univ. Tennessee, Knoxville)
A Parametric Workflow for Rapid Optimization of Conceptual Stellarator Configurations Using Parastell and OpenMC
Edgar Pflug (Univ. Wisconsin, Madison), Joshua Smandych (Univ. Wisconsin, Madison), Connor Moreno (Univ. Wisconsin, Madison), Daniel Clark (Type One Energy), Bonita Goh (Type One Energy), Paul Wilson (Univ. Wisconsin, Madison)
Sensitivity Study of Nuclear and Photoatomic Data Libraries on Dose and Heating in Fusion Neutronics Experimental Benchmarks
Jonathan Neal (Commonwealth Fusion Systems), Avery Grieve (Commonwealth Fusion Systems), Andrea Saltos (Commonwealth Fusion Systems), Ryanne Kennedy (Commonwealth Fusion Systems)
An Open Source Fusion Neutronics Materials Library
T.D. Bohm (Univ. Wisconsin, Madison)
FNG HCPB Tritium Breeder Module Mock-up Benchmarking of OpenMC with both CSG and CAD Models
Felipe S. Novais (MIT), Ethan Peterson (MIT)
OpenMC Simulations of the FNG-ITER Dose Rate Experiments
Yogendra S. Panchal (Univ. Tennessee, Knoxville), Marina Rizk (Univ. Tennessee, Knoxville), Son N. Quang (Univ. Tennessee, Knoxville), Nicholas R. Brown (Univ. Tennessee, Knoxville), G. Ivan Maldonado (Univ. Tennessee, Knoxville)
Surface Heat Load Analysis Due to Plasma Thermal Radiation on Equatorial Port 09
Han Zhang (Princeton Plasma Physics Laboratory), Nathan Arnwine (ORNL), Jiawen Wang (Princeton Plasma Physics Laboratory)
High Field Non-Nuclear Blanket Component Testing User Facility to Complement International Capabilities
B.A. Grierson (General Atomics), P.A. Beharrell (General Atomics), G. Dose (General Atomics), K. Khumthong (General Atomics), B. Lombardo (General Atomics), P. Mijatovic (General Atomics), N. Norausky (General Atomics), M. Tillack (General Atomics), D. Weisberg (General Atomics)
Thermomechanical Analysis of the Plasma-Material Interaction Chamber for the Material Plasma Exposure eXperiment
Aravind Shanmugasundaram (ORNL), Vivek Rao (ORNL), Adam Aaron (ORNL), Ted Boyd (ORNL), Michael P. Costa (ORNL), Aftab Hussain (ORNL)
Full Scale Labyrinth Prototype Test Stand for ITER ECE Diagnostic
O. Pastor (Princeton Plasma Physics Laboratory), J. Bhavsar (Princeton Plasma Physics Laboratory), M. Gomez (Princeton Plasma Physics Laboratory), J. Perich (Princeton Plasma Physics Laboratory), G. Taylor (Princeton Plasma Physics Laboratory), W. Rowan (Univ. Texas, Austin), A. Ouroua (Univ. Texas, Austin), S. Schmuck (ITER Org.), Y. Lui (ITER Org.)
Valve Power Supply Optimization for the ITER Shattered Pellet Injection System
M.N. Ericson (ORNL), S.S. Frank (ORNL), L.G. Clonts (ORNL), R.J. Warmack (ORNL), E.G. Brown (ORNL), Andrzej Nycz (ORNL), L.R. Baylor (ORNL), T.E. Gebhart (ORNL)
Development Of Radio-Frequency, Inductively Coupled Plasma Positive Ion Sources for the DIII-D Neutral Beam Injection System
F.M. Laggner (NCSU), A. Mazzeo (NCSU), K J. Ammons (NCSU), M.S. Hossain (NCSU), E. Kallenberg (General Atomics), A.M. Lietz (NCSU), J.T. Scoville (General Atomics), S.C. Shannon (NCSU), B.J. Crowley (General Atomics)
Support Laboratory for Disruption Mitigation Technology
C. Paz-Soldan (Columbia Univ.), E. Felske (Columbia Univ.), S. Gomez (Columbia Univ.), L. Baylor (ORNL), T. Gebhart (ORNL), E. Baykal (Columbia Univ.), P. Dua (Columbia Univ.), D. Gonzalez (Columbia Univ.), S. Guizzo (Columbia Univ.), H. Hersom (Columbia Univ.), C. Lamadrid (Columbia Univ.)
Acceptance of Conductor and Glass Insulation for NSTX-U Inner Toroidal Field Bundle Fabrication
Y. Zhai (Princeton Plasma Physics Laboratory), A. Brooks (Princeton Plasma Physics Laboratory), R. Ellis (Princeton Plasma Physics Laboratory), D. Cai (Princeton Plasma Physics Laboratory), S. Raftopoulos (Princeton Plasma Physics Laboratory), J. Etherington (Princeton Plasma Physics Laboratory), J. Winkleman (Princeton Plasma Physics Laboratory), J. Lucas (Elytt Energy), M. Lopez (Elytt Energy)
Minimizing the Currents in Poloidal Field Coils by Optimizing their Sizes, Structures, and Locations Using the FREDA Framework
Ehab Hassan (ORNL), J.M. Park (ORNL), B.D. Dudson (LLNL), C.S. Collins (ORNL)
Heat Removal Performance of a Helium Gas Flow in Unidirectional Porous Copper Pipes with Spatially Gradating Pore Structure for Nuclear Fusion Divertors
Ryohei Kubota (Sanyo-Onoda City Univ.), Kohei Yuki (Sanyo-Onoda City Univ.), Kazuhisa Yuki (Sanyo-Onoda City Univ.), Shigeru Tanaka (Kumamoto Univ.), Kazuyuki Hokamoto (Kumamoto Univ.)
Feasibility Study on Heat Pipes for Radio Frequency Antennas
Minuk Jung (MIT), Amy Watterson (MIT), Gregory Wallace (MIT)
A Microwave System for Solenoid-free Startup Studies on Pegasus-III
J.A. Goetz (Univ. Wisconsin, Madison), M.W. Bongard (Univ. Wisconsin, Madison), S.J. Diem (Univ. Wisconsin, Madison), J.K. Peery (Univ. Wisconsin, Madison)
Relationship Between Cathode Spot Formation and Injector Properties During Local Helicity Injection on the Pegasus-III Experiment
Anupama S. Rajendra (Univ. Wisconsin, Madison), Stephanie J. Diem (Univ. Wisconsin, Madison), Benjamin T. Lewicki (Univ. Wisconsin, Madison), Aaron C. Sontag (Univ. Wisconsin, Madison), Kumar Sridharan (Univ. Wisconsin, Madison), Justin D. Weberski (Univ. Wisconsin, Madison)
Isotopically Tailored Materials for Fission and Fusion Systems
Jonah Duran (ORNL), Brian Egle (ORNL)
GRIS - A Gas Release Experiment for Investigation of Hydrogen Isotopes Retention in the Metal Structures of a DEMO Blanket
Dmitry Klimenko (Karlsruhe Institute for Technology), Frederik Arbeiter (Karlsruhe Institute for Technology), Volker Pasler (Karlsruhe Institute for Technology), Georg Schlindwein (Karlsruhe Institute for Technology), Kevin Zinn (Karlsruhe Institute for Technology)
In-situ Measurement of the Onset of Void Swelling in a Self-ion Irradiated 800H Model Alloy
Max Rae (MIT), Angus Wylie (MIT), Alicia M. Elliott (MIT), Lauren Garrison (Commonwealth Fusion Systems), Michael P. Short (MIT)
Neutron-Induced Tungsten Activation in Divertor and Breeding Blanket Armor Structures for EU DEMO
S. Breidokaite (Lithuanian Energy Institute), G. Stankunas (Lithuanian Energy Institute)
Activation and Transmutation Analyses of Tungsten Boride Alloys for Pulsed Power Fusion Shielding Applications
Christian Arguello (Univ. New Mexico), Eric Lang (Univ. New Mexico), Mike Mangan (Sandia)
Modular Modeling of Tritium Constraints on the Fuel Cycle for Complex Fusion Deployment Scenarios
Dean Krueger (Univ. Wisconsin, Madison), Matthew Nyberg (Univ. Wisconsin, Madison), Paul P.H. Wilson (Univ. Wisconsin, Madison), Ben Lindley (Univ. Wisconsin, Madison)
Industrial Process Heat Applications for Fusion Heat
Hitarth Shah (Univ. Wisconsin, Madison), Cate Beckman (Univ. Wisconsin, Madison), Kieran Furlong (Realta Fusion), Benjamin Lindley (Univ. Wisconsin, Madison)
Review of Loss of Coolant Accidents for Tokamak Reactors for Probabilistic Risk Assessment
Anthony Garcia (Univ. Wisconsin, Madison), Juliana Duarte (Univ. Wisconsin, Madison), Vicki Bier (Univ. Wisconsin, Madison), Stephanie Diem (Univ. Wisconsin, Madison)
OEDGE Modeling of Boron Transport in DIII-D from a Poloidally Localized Divertor Source
B. Putra (Univ. Tennessee, Knoxville), J. Mateja (Univ. Tennessee, Knoxville), D. Donovan (Univ. Tennessee, Knoxville), J. Nichols (ORNL), A. Bortolon (Princeton Plasma Physics Laboratory), F. Effenberg (Princeton Plasma Physics Laboratory)
Development of a High-Temperature Blackbody Emitter for Absolute Calibration of the ITER ECE Diagnostic System
A. Ouroua (Univ. Texas, Austin), J. Bhavsar (Princeton Plasma Physics Laboratory), S. Manifold (Univ. Texas, Austin), O. Pastor (Princeton Plasma Physics Laboratory), S. Pish (Univ. Texas, Austin), W.L. Rowan (Univ. Texas, Austin), G. Taylor (Princeton Plasma Physics Laboratory), M. Werst (Univ. Texas, Austin)
Acoustic State Sensing of Subcooled Boiling Heat Transfer on a CuCrZr Surface Using a Deep Neural Network for Divertor Application
Yoshitaka Ueki (Tokyo Univ. of Science), Yuta Aoki (Tokyo Univ. of Science), Naoya Maeda (Tokyo Univ. of Science), Noriyuki Unno (Tokyo Univ. of Science), Kazuhisa Yuki (Sanyo-Onoda City Univ.), Yohji Seki (National Institutes for Quantum Science), Shin-ichi Satake (Tokyo Univ. of Science)
Ion Constants of Motion in the Orbitron Fusion Device
J. Carlsson (Avalanche Energy Designs), A. Cole (Avalanche Energy Designs), R. Langtry (Avalanche Energy Designs), D. Merthe (Avalanche Energy Designs)
Operation of Pegasus-III Spherical Tokamak at 0.6 T for Non-Solenoidal Startup Development
M.D. Nornberg (Univ. Wisconsin, Madison), M.W. Bongard (Univ. Wisconsin, Madison), M.T. Borchardt (Univ. Wisconsin, Madison), S.J. Diem (Univ. Wisconsin, Madison), B.A. Kujak-Ford (Univ. Wisconsin, Madison), B.T. Lewicki (Univ. Wisconsin, Madison), J.A. Reusch (Univ. Wisconsin, Madison), C. Rodriguez Sanchez (Univ. Wisconsin, Madison), C.E. Schaefer (Univ. Wisconsin, Madison), A.C. Sontag (Univ. Wisconsin, Madison), J.D. Weberski (Univ. Wisconsin, Madison), G.R. Winz (Univ. Wisconsin, Madison)
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