Nuclear and Emerging Technologies for Space (NETS 2023)

Full Issue

Key Technologies for Korean Space Heat Pipe Reactor

Chan Soo Kim (KAERI), Sung Nam Lee (KAERI), Byung Ha Park (KAERI), Sung Hoon Choi (KAERI), Sooseok Yang (Korea Aerospace Research Institute)

From the Moon to Mars and the Future for Space Nuclear

Mikaela Blood (Lockheed Martin Space), Matthew Granger (Lockheed Martin Space), Barbara Fisher (Lockheed Martin Space), Timothy Cichan (Lockheed Martin Space), Nathan Kuehl (Lockheed Martin Space)

Heat Rejection Systems for Nuclear-Powered Spacecraft

Adon Delgado Jr. (Aerospace Corp.), Matthew Harrison (Aerospace Corp.), Abdiel Agramonte-Moreno (Aerospace Corp.), John P. McHale (Aerospace Corp.)

The Challenges with Material Interfaces in a Nuclear Thermal Propulsion Engine Heat Exchanger

Sarah L. Langston (NASA Langley Research Center), Carl C. Poteet (NASA Langley Research Center), Julia E. Cline (NASA Langley Research Center)

NTP Prototype Risk Reduction Using Derivative RL10 Components

C. Russell Joyner II (Aerojet Rocketdyne), Federico Aguilar (Aerojet Rocketdyne), Joaquin Castro (Aerojet Rocketdyne), David Hanks (Aerojet Rocketdyne), Daniel J.H. Levack (Aerojet Rocketdyne), Chloe McBride (Aerojet Rocketdyne), Mark Ricciardo (Aerojet Rocketdyne), Brandon Villena (Aerojet Rocketdyne)

Hybrid Temperature-Reactivity PID Controllers for Nuclear Thermal Propulsion Startup

Vincent M. Laboure (INL), Stefano Terlizzi (INL), Sebastian Schunert (INL)

Carbide Coated Carbon-Carbon Heat Exchange Tubes for Nuclear Thermal Propulsion Fuel Assembly

Julia Cline (NASA Langley Research Center), Carl Poteet (NASA Langley Research Center), Benjamin Kowalski (NASA Glenn Research Center), Nathan Jacobson (NASA Glenn Research Center/HX5), Rafael Gonzalez (Kratos SRE)

Low-Cost, Modular High-Temperature Irradiation Testbed for NTP Material Testing

Emily Hutchins (Univ. Tennessee, Knoxville), Lawrence Heilbronn (Univ. Tennessee, Knoxville), Brandon Wilson (ORNL), N. Dianne Bull Ezell (ORNL)

ECSPLORER: A Pre-Conceptual Design of an Electronuclear System for Space

F. Bertrand (CEA), J.B. Droin (CEA), M. Charlier (CEA), T. Daulle (CEA), Y. Gorsse (CEA), A. Entringer (CEA), P. Allegre (CEA), A. Gerschenfeld (CEA), E. Proust (CEA), P. Bultel (CNES)

Design of a 10 MWth Heat Pipe-Cooled Reactor for Nuclear Electric Propulsion Applications

Aaron She (Ultra Safe Nuclear), Nolan MacDonald (Ultra Safe Nuclear), Doug Grieson (Ultra Safe Nuclear), Wesley Deason (Ultra Safe Nuclear), Jeffrey Diebold (Advanced Cooling Technologies), Calin Tarau (Advanced Cooling Technologies)

Parametric Analysis of the Design Point for a Centrifugal Nuclear Thermal Rocket Fuel Element

Joel Krakower (NASA Marshall Space Flight Center), David Austin (Drexel Univ.), Dhruv Shah (Drexel Univ.), Yanni Tsetsekos (Drexel Univ.)

Design and Performance Analysis of a Radial-Inflow Turbine for the Centrifugal Nuclear Thermal Rocket

Joel Krakower (NASA Marshall Space Flight Center)

Nuclear Electric Propulsion Flight Demonstrator Vehicle and Mission Concept

Timothy Kokan (Aerojet Rocketdyne), Jacob Evans (Aerojet Rocketdyne), C. Russell Joyner II (Aerojet Rocketdyne), Daniel J. H. Levack (Aerojet Rocketdyne), Brian J. Muzek (Aerojet Rocketdyne), Rodney W. Noble (Aerojet Rocketdyne), Christopher B. Reynolds (Aerojet Rocketdyne)

Overview of the Interagency Nuclear Safety Review Board Playbook

Donald Helton (NASA), Karl Garman (Federal Aviation Administration), Mark Glissman (Air Force Safety Center), Tina Ghosh (Nuclear Regulatory Commission)

Overview of Past Space Nuclear Reactor Functional Safety Principles in the Context of Recent Policy Changes

Donald Helton (NASA), Lee Mason (NASA Glenn Research Center), Matthew Forsbacka (NASA)

Probabilistic Risk Analysis Methods for Nuclear Launch Safety

Kevin A. Makinson (Ultra Safe Nuclear), Christopher Morrison (Ultra Safe Nuclear)

Paving the Way for European Safe Nuclear Use in Space: Argonaut Mission

Grzegorz Ambroszkiewicz (ESA/ESTEC), Alexander Getimis (ESA/ESTEC), Paloma Villar (ESA/ESTEC)

Engaging for Success: Effective Space Nuclear Stakeholder Communications

Kristin M. Jansen (NASA Glenn Research Center), Kerri B. Beisser (Aerospace Corp.), Douglas M. Isbell (NASA Jet Propulsion Laboratory)

Continuing Experimental Efforts for Simulating a Centrifugal Nuclear Thermal Rocket Engine

Timothy Blackman (Univ. Alabama, Hunstville), Mitchell Schroll (Univ. Alabama, Hunstville), Robert Frederick (Univ. Alabama, Hunstville), L. Dale Thomas (Univ. Alabama, Hunstville)

Nuclear Thermal Propulsion for High Delta-V Science Missions

Ethan Chaleff (Ultra Safe Nuclear), Craig Foulds (Ultra Safe Nuclear), Doug Greisen (Ultra Safe Nuclear), Michael Eades (Ultra Safe Nuclear)

Capabilities of Single Launch NTP and Chemical Spacecrafts for Cis-Lunar Tug Missions

Christopher Harnack (Analytical Mechanics Assoc.), Emanuel Grella (Analytical Mechanics Assoc.), Sean Greenhalge (Analytical Mechanics Assoc.), Matthew Duchek (Analytical Mechanics Assoc.)

Chemical Vapor Deposition of ZrC Coatings for Space Nuclear Propulsion

Eddie Lopez-Honorato (ORNL), Tyler Gerczak (ORNL), Ryan Heldt (ORNL), Peter Doyle (ORNL), Will Cureton (ORNL), Grant Helmreich (ORNL), John Hunn (ORNL)

Overview of the Reliability-Driven Design and Test Methodology Applied to Nuclear Thermal Propulsion Systems

Samantha B. Rawlins (Univ. Alabama, Huntsville), L. Dale Thomas (Univ. Alabama, Huntsville)

DRACO On-Orbit Nuclear Thermal Rocket Experiment Preliminary Plans

Tabitha Dodson (Defense Advanced Projects Agency), David Poston (LANL), Anthony Calomino (NASA Glenn Research Center), Jason Turpin (NASA Marshall Space Flight Center)

Development of Radiological Material Capabilities with Spark Plasma Sintering for Nuclear Thermal Propulsion

Brandon Shaver (Univ. Tennessee, Knoxville), Steven Zinkle (Univ. Tennessee, Knoxville)

Exploring Sol-gel Methods for Producing Surrogate Radioisotope Fuels

Emily Jane Watkinson (Univ. Leicester), C. Lakin (Univ. Leicester), M. Bromley (Lancaster Univ.), R. Wilbraham (Lancaster Univ.), Richard Ambrosi (Univ. Leicester)

Fission Surface Power 250 kWth Nuclear Reactor Simple Lithium Hydride/Tungsten Shield

Alexis Maldonado (LANL)

Optimization of Neptunium-237 Modified Direct Denitration Production via Principal Component Analysis

Connor J. Parker (ORNL), Kathryn M. Peruski (ORNL), Samantha K. Cary (ORNL)

Homogeneity Study of ZrC, NbC, and TaC Binary Carbide Fuels for the Application of Nuclear Thermal Propulsion

Alex T. Nadermann (Univ. Tennessee, Knoxville), Jonas R. Kessing (Univ. Tennessee, Knoxville), Brandon Shaver (Univ. Tennessee, Knoxville), Justin Milner (NASA Glenn Research Center), Kelsa Palomores (Analytical Mechanics Assoc.), Steven J. Zinkle (Univ. Tennessee, Knoxville)

Integral Neutron and Gamma Shield Material

Candice Kinsler-Fedon (MillenniTEK), Larry Townsend (Univ. Tennessee, Knoxville), David Blanchard (PNNL), Drew Spradling (MillenniTEK)

Atomic Alchemy Inc.'s Non-Power Production and Utilization Facility

Thomas Eiden (Atomic Alchemy)

Challenges Facing our Space Nuclear Future

Sara M. Sanders (Lockheed Martin Space)

Critical Experiments for Space Reactors

Holly Trellue (LANL), Theresa Cutler (LANL), Erik Luther (LANL), Rene Sanchez (LANL)

Optical Spectroscopy and Online Monitoring for the Plutonium-238 Supply Program

Luke R. Sadergaski (ORNL), Hunter B. Andrews (ORNL), Tom D. Hylton (ORNL), Laetitia H. Delmau (ORNL), Adam J. Parkison (ORNL)

Multivariate Chemometrics and Spectrophotometry for the Quantification of Aqueous Neptunium Processing Streams for the Plutonium-238 Supply Program

Hunter B. Andrews (ORNL), Luke R. Sadergaski (ORNL)

Non-Nuclear Instrumentation and Controls Demonstration Test Facility

N. Dianne Bull Ezell (ORNL), Brandon Wilson (ORNL), Wesley Williams (ORNL)

Commercially Available Yttrium and Zirconium Hydrides

Gavin Garside (Ultra Safe Nuclear), Kurt Terrani (Ultra Safe Nuclear)

Subtleties in the Impacts of NTP Conditions Based on Fuel Element Power Peaking During Operation

Vishal Patel (Ultra Safe Nuclear)

Design Options to Address Submersion Incident Criticality LEU NTP Core

Michael Moore (MIT), Koroush Shirvan (MIT), Steven Hoak (MIT)

Safety Studies for the ESA Radioisotope Power Systems

Alessandra Barco (Univ. Leicester), Richard M. Ambrosi (Univ. Leicester), Hannah Sargeant (Univ. Leicester), Frédéric Lattwein (ArianeGroup), Christophe Fongarland (ESA/ESTEC)

Subscale Maturation of Advanced Ultra-High Temperature Reactor Technologies

Tony S. Hill (Starr Nuclear)

Use of an Americium-Based Dynamic Radioisotope Power System (DRPS) for a Long Duration Lunar Science Rover

Steven Oleson (NASA Glenn Research Center), Paul Schmitz (Power Computing Solutions), Richard M. Ambrosi (Univ. Leicester), Ramy Mesalam (Univ. Leicester), Alessandra Barco (Univ. Leicester), Emily Jane Watkinson (Univ. Leicester), Elizabeth Turnbull (NASA Glenn Research Center)

An Instrumented System to Study High Pressure-Composition-Temperature Phase Relations

A.P. Shivprasad (LANL), M.A. Torrez (LANL), J.R. Torres (LANL), T.S. Smith (LANL), C.A. Kohnert (LANL), T.A. Saleh (LANL)

Advanced Moderator Cladding Development

A.P. Shivprasad (LANL), C.A. Kohnert (LANL), E.P. Luther (LANL), D.V. Rao (LANL)

Theory and Design of the Fusion Accelerating Spacecraft

Ryan A. Revolinsky (Univ. Michigan), Elijah J. Wilson (Univ. Michigan), Adam N. Brusstar (Univ. Michigan), Tim DeFranco (Univ. Michigan), Dean R. Price (Univ. Michigan), Joseph Lorenzetti (Univ. Michigan)

Design of an Irradiation Facility at MITR to Demonstrate NTP Operation Sequence

Nesrin Cetiner (MIT), Gyutae Park (MIT), Koroush Shirvan (MIT), Lance Snead (MIT), David Carpenter (MIT), Gordon Kohse (MIT)

Developments of the Americium and Plutonium Purification by Extraction (AMPPEX) Process and the PuMA 2 Scale-Up Opportunities

Rebecca Sanderson (National Nuclear Laboratory), Mark Sarsfield (National Nuclear Laboratory), Chris Maher (National Nuclear Laboratory), Michael Carrott (National Nuclear Laboratory), Dan Whittaker (National Nuclear Laboratory), Billy Keywood (National Nuclear Laboratory), Chloe Edmondson (National Nuclear Laboratory), Hannah Colledge (National Nuclear Laboratory), Jessica Gunning (National Nuclear Laboratory), Victoria Hayter (National Nuclear Laboratory), Tim Tinsley (National Nuclear Laboratory), Christophe Fongarland (European Space Agency)

Cross-Section Comparison for Pu-238 Production in the Advanced Test Reactor at Idaho National Laboratory

Jill Mitchell (INL), Brittany Grayson (INL)

Characterization of Neptunium Oxide Product from Modified Direct Denitration Process

Kathryn M. Peruski (ORNL), Connor J. Parker (ORNL), Samantha K. Cary (ORNL)

EmberCore Commercial Radioisotope Product -- Path Toward Demonstration and Flight

Christopher Morrison (Ultra Safe Nuclear), Danyal Turkoglu (Ultra Safe Nuclear), Kevin Makinson (Ultra Safe Nuclear), Michael Eades (Ultra Safe Nuclear)

Feasibility of a Small Low-Power RTG Concept Utilizing a GPHS Heat Source

Kenton Sherick (Univ. Dayton Research Institute), Aniruddha Ray (RGS Development), Pierre Berneron (RGS Development), B. Allen Tolson (Univ. Dayton Research Institute), Chadwick Barklay (Univ. Dayton Research Institute), Maarten den Heijer (RGS Development)

Reactor Core Geometry Optimization with Application for Centrifugal Nuclear Thermal Rockets

Mitchell Schroll (Univ. Alabama, Hunstville), Robert Frederick (Univ. Alabama, Hunstville), L. Dale Thomas (Univ. Alabama, Hunstville)

Modelling Nuclear Thermal Propulsion Reactor Expander Cycle Startup Transients

Lise Charlot (INL), Sebastian Schunert (INL), Vincent Labouré (INL), Mark DeHart (INL)

Regulatory Approach for Nuclear Thermal Propulsion Reactor Systems

Alexander Pingel (Analytical Mechanics Assoc.), Alexander Foutch (Analytical Mechanics Assoc.), James Werner (Analytical Mechanics Assoc.), Lindsey Holmes (Analytical Mechanics Assoc.)

Developing of Three-Dimensional Bubble Dynamics Model for Centrifugal Nuclear Thermal Propulsion

Pongkrit Darakorn Na Ayuthya (Univ. Alabama, Huntsville), Jason Cassibry (Univ. Alabama, Hunstville)

Effects of Heat Transfer Coefficient Variation on Nuclear Thermal Propulsion Engine Performance

Daria Nikitaeva (Analytical Mechanics Assoc.), Corey D. Smith (Analytical Mechanics Assoc.), Matthew Duchek (Analytical Mechanics Assoc.)

NASA's Radioisotope Power Systems Program: Status Update

Carl E. Sandifer II (NASA Glenn Research Center), Colleen Van Lear (NASA Glenn Research Center), J. Michael Newman (NASA Glenn Research Center), Bethany Eppig (NASA Glenn Research Center), Ryan Edwards (NASA), Emily Hsu (Dept. of Energy), Sujita Pierpoint (Dept. of Energy)

Progress on Pu-238 Production at Idaho National Laboratory from February 2022 to December 2022

Andrew Zillmer (INL), William Green (INL), Justin Lower (INL), Jill Mitchell (INL), Brittany Grayson (INL), Erik Rosvall (INL), Austen Fradeneck (INL), Joshua Fishler (INL), Ryan Marlow (INL), Mark Hill (INL)

The Next Generation Radioisotope Thermoelectric Generator Project -- Overview and Progress Status

Todd A. Tofil (NASA Glenn Research Center), Thomas D. DeMichael (NASA Glenn Research Center), Jeffrey M. Woytach (NASA Glenn Research Center), Jean-Pierre Fleurial (Jet Propulsion Laboratory), Jaymon Birch (INL), Shad Davis (INL)

Status of Dynamic Radioisotope Power System Development for NASA Missions

Sal Oriti (NASA Glenn Research Center), Ernestina Wozniak (NASA Glenn Research Center), Max Yang (NASA Glenn Research Center)

The European Radioisotope Power Systems Program: ENDURE -- European Devices Using Radioisotope Energy

Richard M. Ambrosi (Univ. Leicester), Tim Tinsley (National Nuclear Laboratory), Alessandra Barco (Univ. Leicester), Ramy Mesalam (Univ. Leicester), Emily Jane Watkinson (Univ. Leicester), Hannah Sargeant (Univ. Leicester), Chris Bicknell (Univ. Leicester), Tony Crawford (Univ. Leicester), Rebecca Sanderson (National Nuclear Laboratory), Jacob White (National Nuclear Laboratory), Mark Sarsfield (National Nuclear Laboratory), Nick Hanigan (National Nuclear Laboratory), Giorgio Magistrati (European Space Agency), Christophe Fongarland (European Space Agency), Markus Landgraf (European Space Agency), Kevin Simpson (European Thermodynamics), Richard Tuley (European Thermodynamics), Marie-Claire Perkinson (Airbus), Robert Hopton (Airbus), Frederic Lattwein (ArianeGroup), Daniel Freis (European Commission), Rudy J. M. Konings (European Commission), Piers Slater (Digital Reef)

eVinci™ Micro Reactor – Electrical Demonstration Unit (EDU) – Phase 1 Test Results

J. Lojek (Westinghouse Electric Co.), M. A. Shockling (Westinghouse Electric Co.), R. Blunt (Westinghouse Electric Co.), A. Macdonald (Westinghouse Electric Co.), A. Page (Westinghouse Electric Co.), Joseph Halackna (Westinghouse Electric Co.)

Development of Stirling Convertors for Radioisotope and Fission Power Systems

Scott D. Wilson (NASA Glenn Research Center)

SpaceX Falcon Heavy Mass Constraints as Design Driver for Practical Heat Pipe Stirling Micro Reactors

Daniel LP Watson (TAMU), Ronald Daryll E. Gatchalian (TAMU), Hui-Yu Hsieh (TAMU), Pramatha Bhat (TAMU), Pavel V. Tsvetkov (TAMU)

A Feasibility Study for the Early Deployment of an Americium-241 Fuelled Radioisotope Heater Unit

Jacob White (National Nuclear Laboratory), Tim Tinsley (National Nuclear Laboratory), Richard Ambrosi (Univ. Leicester), Richard Smith (National Nuclear Laboratory), Rebecca Sanderson (National Nuclear Laboratory)

Avoiding Earth Launch of Radioactive Material: Concepts for In-Situ Fabrication of Radioisotope Power Generators for Cislunar Applications

C.M. Lavelle (Johns Hopkins APL), R. Venkatasubramanian (Johns Hopkins APL), R. McNutt (Johns Hopkins APL), K. Iyer (Johns Hopkins APL), P. Ostdiek (Johns Hopkins APL), A. Darrin (Johns Hopkins APL)

Development, Testing and Power Performance Prediction Update for the Skutterudite-Based MMRTG

T. Caillat (Jet Propulsion Laboratory), S. Pinkowski (Jet Propulsion Laboratory), I. Chi (Jet Propulsion Laboratory), K. Smith (Jet Propulsion Laboratory), J. Paik (Jet Propulsion Laboratory), R. Bennett (Teledyne Energy Systems), S. Keyser (Teledyne Energy Systems), A. Lane (Aerojet Rocketdyne), K. Wefers (Aerojet Rocketdyne)

Performance Test of a Small ETG in Low-Earth Orbit

Jintae Hong (KAERI), Sunjin Kim (KAERI), Jong-Bum Kim (KAERI), Kwang-Jae Son (KAERI), Jin-Joo Kim (KAERI), Jin Kim (KAERI)

Advancements Towards 100% Form-Fit-and-Function and Manufacturing of GPHS Heritage-Like SiGe Unicouples with Materials Prepared by Spark Plasma Sintering

Jonathan Pierce (Johns Hopkins APL), Richard Ung (Johns Hopkins APL), Jake Ballard (Johns Hopkins APL), Tim Holgate (Johns Hopkins APL), Priestly Shuler (Johns Hopkins APL), Mousumi Mitra (Univ. Virginia), Rasdip Singh (Soal Technologies), Meiyong Himmtann (Johns Hopkins APL), Cheryl Sturm (Johns Hopkins APL), Scott Misture (Alfred Univ.), Joseph Poon (Univ. Virginia), Timothy Erickson (Johns Hopkins APL), Paul Ostdiek (Johns Hopkins APL), Rama Venkatasubramanian (Johns Hopkins APL)

Vaporization Impact for Liquid Core Nuclear Thermal Rockets: A Retrospective

Dakota Santana (Univ. Alabama, Huntsville), Keith Hollingsworth (Univ. Alabama, Huntsville)

Uranium Mass Loss in a Centrifugal Nuclear Thermal Propulsion System via Droplet Entrainment

John Seekins (Univ. Alabama, Huntsville), Jason Cassibry (Univ. Alabama, Hunstville)

A Review of the NERVA Nuclear Thermal Propulsion Challenges with Criticality Under Accident Conditions

Susan S. Voss (GNNA), Patrick McClure (Kilo Power), David Poston (Kilo Power)

Hydrogen Supersaturation in Flow Tubes During NTP Reactor Shutdown

Kasturi Khatun (Center for Space Nuclear Research), Zyed Ansary (Center for Space Nuclear Research), Manikandan Pandiyan (Center for Space Nuclear Research), Steve Herring (Center for Space Nuclear Research), Brad Kirkwood (Center for Space Nuclear Research)

Fission Product and Dose Calculations for NASA Space Nuclear Propulsion

Luke Cornejo (BWX Technologies), Herschel Smith (BWX Technologies), Reed Herner (Analytical Mechanics Assoc.), Shane Stimpson (BWX Technologies)

Justification for Proposed Resurrection of the Step 0 GPHS Module for Interstellar Probe

Yale Chang (Johns Hopkins APL)

Zirconium Carbide Coated Uranium Nitride TRISO Particle Production

Brian Ade (Ultra Safe Nuclear), Brian Jolly (Ultra Safe Nuclear), Michael Trammel (Ultra Safe Nuclear), Barry Spencer (Ultra Safe Nuclear), Kurt Terrani (Ultra Safe Nuclear)

MMRTG Performance Update -- 2023

Christofer E. Whiting (Univ. Dayton)

Autonomous Melting Probe for Icy Planets

Brett Leitherer (Advanced Cooling Technologies), Calin Tarau (Advanced Cooling Technologies), Kuan-Lin Lee (Advanced Cooling Technologies), Srujan Rokkam (Advanced Cooling Technologies), Tyler Spinello (Advanced Cooling Technologies)

Refractory Carbides for Hydrogen Erosion Resistance in Carbon Tubes for Nuclear Thermal Propulsion

William C. Tucker (NASA Ames Research Center), Charles W. Bauschlicher Jr. (NASA Ames Research Center), Jaehyun Cho (NASA Ames Research Center), Justin B. Haskins (NASA Ames Research Center)

ZrC Chemical Vapor Deposition Capabilities at Ultra Safe Nuclear

Neal Gaffin (Ultra Safe Nuclear), Tom Crotzer (Ultra Safe Nuclear), Brian Ade (Ultra Safe Nuclear), Brain Jolly (Ultra Safe Nuclear)

Sintering Behaviors of ZrC, NbC, and TaC as a Fuel for Nuclear Thermal Propulsion

Jonas R. Kessing (Univ. Tennessee, Knoxville), Alexander T. Nadermann (Univ. Tennessee, Knoxville), Brandon Shaver (Univ. Tennessee, Knoxville), Justin Milner (NASA Glenn Research Center), Kelsa Palomares (Analytical Mechanics Assoc.), Steven J. Zinkle (Univ. Tennessee, Knoxville)

Thermal Arrest Capability Development to Study Phase Transformations in High Temperature Materials

Erofili Kardoulaki (LANL), Darrin Byler (LANL), Rubens Ingraci Neto (LANL), Kenneth McClellan (LANL)

NTP Fuel Manufacturing at Ultra Safe Nuclear

Brian Ade (Ultra Safe Nuclear), Tom Crotzer (Ultra Safe Nuclear)

Space Nuclear Launch Safety Transport and Consequence Tools

Daniel J. Clayton (Sandia)

Water Solubility of Candidate Radioisotopes for Space RPS Systems

Chadwick Barklay (Univ. Dayton Research Institute), Christofer Whiting (Univ. Dayton Research Institute), Jacob Matthews (Zeno Power Systems), Olivera Zivkovic (Zeno Power Systems), Alex Gilbert (Zeno Power Systems)

Additive Manufacturing of Zirconium Carbide for Nuclear Thermal Propulsion

Brian Ade (Ultra Safe Nuclear), Tom Hinklin (Ultra Safe Nuclear), Michael Trammel (Ultra Safe Nuclear), Kurt Terrani (Ultra Safe Nuclear)

ZrC Coated Particle Characterization and QA/QC for the SNP Project

Tyler J. Gerczak (ORNL), Eddie Lopez-Honorato (ORNL), Will F. Cureton (ORNL), Ryan S. Heldt (ORNL), Grant W. Helmreich (ORNL), Chris A. Hobbs (ORNL), Peter J. Doyle (ORNL), Katherine I. Montoya (ORNL), John D. Hunn (ORNL)

Additional Isotopes -- Mission Enabling Technologies for Space

J.R. Matthews (Zeno Power Systems), A.Q. Gilbert (Zeno Power Systems), J.R. Wiley (Zeno Power Systems)

NIAC Phase I: EmberCore Flashlight: Long Distance Lunar Characterization with Intense Passive X- and Gamma-ray Source

Christopher Morrison (Ultra Safe Nuclear)

Radiation Fields and Safety Zones for Nuclear Systems on the Lunar Surface

Alexander Q. Gilbert (Zeno Power Systems)

EmberCore Radioisotope Electric Propulsion for High Delta-V Missions to the Outer Solar System

Christopher Morrison (Ultra Safe Nuclear)

Fabrication and Assembly of the NASA Sirius Series of Experiments for TREAT Irradiation

Nathan D. Jerred (INL), Randy Scott (INL), Sarah Hamilton (INL), James Zillinger (INL), Jhonathan Rosales (NASA Marshall Space Flight Center), Dustin Hill (BWX Technologies), Justin Lower (INL), Nicolas Woolstenhulme (INL), Cindy Fife (INL), Caysie Marshall (INL), Doug Dempsey (INL), Robert C. O'Brien (INL), Doug Burns (NASA Marshall Space Flight Center)

On the Qualification Process of a Vendor for the Chopping of Precursor Fiber for the Production of Carbon Bonded Carbon Fiber Insulation

Nidia C. Gallego (ORNL), Rex Veach (ORNL), George Ulrich (ORNL)

Microstructure and Thermophysical Properties of Pyrolytic Graphite Produced by Surface Nucleation and Continuous Nucleation Methods

Hsin Wang (ORNL), Frederic Vautard (ORNL), Glenn Romannoski (ORNL), George Ulrich (ORNL), Mikel Wilhelm (Minteq Int'l), Robert Wright (Minteq Int'l)

Closed-Loop Brayton Cycles for Micro-Reactor Power Conversion

John Mason (Rolls-Royce)

Criticality and Performance of a Gas Core Nuclear Rocket

Rittu Raju (Univ. Michigan), John E. Foster (Univ. Michigan)

Hot Hydrogen Testing of Nuclear Fuel Materials in the Compact Fuel Element Environmental Test (CFEET) Facility

Jamelle K.P. Williams (NASA Marshall Space Flight Center), Arne Cröll (Univ. Alabama, Hunstville), Jhonathan Rosales (NASA Marshall Space Flight Center), Brian Taylor (NASA Marshall Space Flight Center), Martin Volz (NASA Marshall Space Flight Center)

Effective Hydride Moderator Thermal Management in the Pylon Space Reactor

Wesley Deason (Ultra Safe Nuclear), Vishal Patel (Ultra Safe Nuclear), Ethan Chaleff (Ultra Safe Nuclear)

Radiator Production for Pylon Fission Surface Power System on the Moon

Diana Nikitaeva (Univ. Alabama, Huntsville), L. Dale Thomas (Univ. Alabama, Huntsville)

Thermomechanical Limitations of Uranium Mononitride

Zachary Miller (LANL), Massimiliano Fratoni (Univ. California, Berkeley), Vedant Mehta (LANL)

Assessment of Coated Particle Fuels for Space Nuclear Power and Propulsion Systems

Kelsa Palomares (Analytical Mechanics Assoc.), James Werner (Analytical Mechanics Assoc.)

Digital Transient Modeling of NTP Prototype with Upset and Control System Analysis

C. Russell Joyner II (Aerojet Rocketdyne), Tyler Jennings (Aerojet Rocketdyne), James Larkin (Aerojet Rocketdyne), Daniel J.H. Levack (Aerojet Rocketdyne)

Coupled Modeling and Prediction of Cryogenic Propellant Thermo-Fluid Dynamics

Eymon Lan (Rensselaer Polytechnic Institute), Shanbin Shi (Rensselaer Polytechnic Institute)

Dose Impacts from Fission Products and Flux Fields for Nuclear Thermal Propulsion Ground Testing

Reed Herner (Analytical Mechanics Assoc.), Alexander Foutch (Missouri Univ. Science and Technology), Kelsa Palomares (Analytical Mechanics Assoc.), Adam Boylston (Analytical Mechanics Assoc.), Lindsey Holmes (Analytical Mechanics Assoc.)

Thermal Analysis of the Small Nuclear Rocket Engine Benchmark Case Using the MOOSE Framework

Jacob Stonehill (Analytical Mechanics Assoc.), Corey D. Smith (Analytical Mechanics Assoc.), Kelsa B. Palomares (Analytical Mechanics Assoc.)

Reactor Parametric Assessments for Alternative Propellant Nuclear Thermal Propulsion Engines

Corey Smith (Analytical Mechanics Assoc.), Daria Nikitaeva (Analytical Mechanics Assoc.), Jacob Stonehill (Analytical Mechanics Assoc.), Matthew Duchek (Analytical Mechanics Assoc.)

Ground Test Technology Demonstration for Nuclear Thermal Propulsion Engines

Ricky Sasmal (Analytical Mechanics Assoc.), Lindsey Holmes (Analytical Mechanics Assoc.), Jim Rector (Analytical Mechanics Assoc.), Marcus Neely (NASA Marshall Space Flight Center)

Nuclear Thermal Propulsion vs. LOX/LH2 Chemical Propulsion for Cislunar Architectures

Christopher B. Reynolds (Aerojet Rocketdyne), C. Russell Joyner II (Aerojet Rocketdyne), Timothy Kokan (Aerojet Rocketdyne), Daniel J.H. Levack (Aerojet Rocketdyne)

Exploring the Feasibility of Kuiper Belt Missions Supported by Centrifugal Nuclear Thermal Propulsion

William Ziehm (Univ. Alabama, Huntsville), L. Dale Thomas (Univ. Alabama, Huntsville)

Preliminary Nuclear Thermal Propulsion Engine System Trades for Robotic Missions to Jupiter

Saroj Kumar (Univ. Alabama, Hunstville), L. Dale Thomas (Univ. Alabama, Hunstville), Jason T. Cassibry (Univ. Alabama, Hunstville)

Ice-Mining on the Moon with Radioisotope Power Systems

Hannah M. Sargeant (Univ. Leicester), Ramy Mesalam (Univ. Leicester), Emily Jane Watkinson (Univ. Leicester), Alessandra Barco (Univ. Leicester), Richard M. Ambrosi (Univ. Leicester), Leo Gard (Aerojet Rocketdyne), Larry Trager (Aeroject Rocketdyne), Bert Lara (Aerojet Rocketdyne), Erik Scougal (Aerojet Rocketdyne), Tim Tinsley (Univ. Leicester)

A Study on Effect of Tuning Capacitor in Dynamic Radioisotope Power Systems

Donguk Max Yang (NASA Glenn Research Center), Nicholas A. Schifer (NASA Glenn Research Center), Tyler R. Steiner (NASA Glenn Research Center), Matthew D. Stang (NASA Glenn Research Center)

Long-Term Testing of Spark Plasma Sintered Silicon Germanium Unicouples

Tim C. Holgate (Johns Hopkins APL), Jonathan Pierce (Johns Hopkins APL), Richard Ung (Johns Hopkins APL), Jake Ballard (Johns Hopkins APL), Meiyong Himmtann (Johns Hopkins APL), Rasdip Singh (SOAL Technologies), Jeffrey Hagler (NCSU), Phil Barletta (NCSU), Tim Erickson (Johns Hopkins APL), Paul Ostdiek (Johns Hopkins APL), Rama Venkatasubramanian (Johns Hopkins APL)

Revised Estimates for Dragonfly MMRTG Neutron Spectrum and Effects

Teyen Widdicombe (Center for Space Nuclear Research), Berenice Sosa-Aispuro (Center for Space Nuclear Research), J. S. Herring (Center for Space Nuclear Research)

Calculation of Space Radiation Exposure on Bi2Te3-Based Thermoelectric Generator

Sunjin Kim (KAERI), Jong-Bum Kim (KAERI), Kwang-Jae Son (KAERI), Jin-Joo Kim (KAERI), Jin Kim (KAERI), Jintae Hong (KAERI)

Neutronic Feasibility of Ultra-Compact, Long-Life Molten Salt Metal Reactor (MSMR)

Jaehyun Ryu (KAIST), Eunhyug Lee (KAIST), Yonghee Kim (KAIST)

Preliminary Heat-Transfer Modelling of In-Core Thermoelectric Conversion for Small-Scale Space Reactors

Ramy Mesalam (Univ. Leicester), Agostino Muratto (Univ. Leicester), Richard M. Ambrosi (Univ. Leicester)

An Initial Look at the Heat Pipe Resiliency to Reactor Operation

Vedant K. Mehta (LANL), Sebastian C. Corbisiero (INL), Dasari V. Rao (LANL)

Physics Model Considerations for Nanocomposite Shielding in High Energy Proton Fields

Justina A.M. Freilich (Oregon State), Camille J. Palmer (Oregon State)

The Effects of Hot Hydrogen Exposure on (U,Zr)C Fuel for Nuclear Thermal Propulsion

Jhonathan Rosales (NASA Marshall Space Flight Center), Arne Croell (Univ. Alabama, Hunstville), Jamelle K.P. Williams (NASA Marshall Space Flight Center), Brian Taylor (NASA Marshall Space Flight Center), Martin Volz (NASA Marshall Space Flight Center), Jason Reynolds (Univ. South Carolina), Christopher McKinney (NASA Marshall Space Flight Center)

Mechanical Properties and Failure Mechanisms of Cermet Fuel for Nuclear Thermal Propulsion (NTP)

James Mudd (LANL), Jeremy Watts (Missouri Univ. Science and Technology), Jhonathan Rosales (NASA Marshall Space Flight Center), Ryan Wilkerson (LANL), Brian Taylor (NASA Marshall Space Flight Center), William Fahrenholtz (Missouri Univ. Science and Technology), Gregory Hilmas (Missouri Univ. Science and Technology), Joseph Graham (Missouri Univ. Science and Technology)

A Predictive Transient Model of the TREAT-SIRIUS Experiments

Mustafa K. Jaradat (INL), Sebastian Schunert (INL), Frederick N. Gleicher (INL), Vincent M. Laboure (INL), Mark D. DeHart (INL)

Vehicle-Level Performance Benefits of Ammonia Nuclear Thermal Propulsion

Craig Foulds (Ultra Safe Nuclear), Doug Greisen (Ultra Safe Nuclear), Hari Nagarajan (Ultra Safe Nuclear), Michael Eades (Ultra Safe Nuclear)

Thermal Analysis of the SIRIUS3 Nuclear Propulsion Fuel Calibration Experiment

Frederick N. Gleicher (INL), Mustafa K. Jaradat (INL), Sebastian Schunert (INL), Mark DeHart (INL)