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Division Spotlight
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
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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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Nuclear Science and Engineering
June 2025
Nuclear Technology
May 2025
Fusion Science and Technology
Latest News
Sam Altman steps down as Oklo board chair
Advanced nuclear company Oklo Inc. has new leadership for its board of directors as billionaire Sam Altman is stepping down from the position he has held since 2015. The move is meant to open new partnership opportunities with OpenAI, where Altman is CEO, and other artificial intelligence companies.
Technical Session|Radioisotope Power Systems
Tuesday, May 6, 2025|3:15–4:55PM CDT|Salon EF (Marriott)
Session Chair:
Ryan Edwards (NASA Glenn Research Center)
Alternate Chair:
Andrea Marchica (NASA Glenn Research Center)
Track Organizer:
Harold Gerrish (NASA Marshall Space Flight Center)
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A Gd-148 Heated Melt Probe for Europa's Ice sheet
3:15–3:21PM CDT
Roshni Bakrania (Univ. Leicester), Emily Jane Watkinson (Univ. Leicester)
Paper
Radioisotopes for Space: Lifecycle Waste and Transportation Considerations
3:21–3:27PM CDT
Kurt Fogleman (Zeno Power Systems), Alex Gilbert (Colorado School of Mines), Harsh S. Desai (Zeno Power Systems)
Study on Approval Processes for the Integration of Nuclear Power Sources into Space Launch Vehicles for Korea's Lunar Exploration and Associated Challenges
3:27–3:33PM CDT
Kilyoung ko (KAERI), Jong-Bum Kim (KAERI), Sunjin Kim (KAERI), Jin-Joo Kim (KAERI), Jin Kim (KAERI), Yongrok Jeong (KAERI), Gujin Kang (KAERI), Kwang-Jae Son (KAERI), Jintae Hong (KAERI)
The Progress with the European Dynamic Radioisotope Power System
3:33–3:39PM CDT
Mihails Scepanskis (Deep Space Energy)
Development of Stirling Radioisotope Generator Testing System
3:39–3:45PM CDT
Yongrok Jeong (KAERI), Gujin Kang (KAERI), Kilyoung Ko (KAERI), Sunjin Kim (KAERI), Jong-bum Kim (KAERI), Jin-joo Kim (KAERI), Jin Kim (KAERI), Kwang J. Son (KAERI), Hyungwoo Kwon (Seoul National Univ.), Yundeok Ro (Seoul National Univ.), Seonghyeon Cho (Seoul National Univ.), Kyuho Sim (Seoul National Univ.), Jintae Hong (KAERI)
Update on the Qualification Process of an Alternative Fiber and a Chopping Vendor for the Production of Carbon Bonded Carbon Fiber Insulation
3:45–3:51PM CDT
Nidia C. Gallego (ORNL), Rex Veach (ORNL), Roger G. Miller (ORNL)
Radioisotope Power System - Dose Estimation Tool Version 3.1 Release
3:51–3:57PM CDT
Noel B. Nelson (ORNL), Mathew W. Swinney (ORNL)
Payload Review for NanoTritiumTM Betavoltaic Batteries
3:57–4:03PM CDT
Peter Cabauy (City Labs), Kevin Makinson (Nuclear Consulting, LLC)
Qualifying Tritium Loading for Advanced Nuclear Space Devices
4:03–4:09PM CDT
Krystine Pimentel (City Labs), Peter Cabauy (City Labs), Jesse Grant (City Labs), Mark Stone (City Labs)
Scalable Tritium Power Solutions for Extended Space Missions
4:09–4:15PM CDT
Mark Stone (City Labs), Peter Cabauy (City Labs), Jesse Grant (City Labs), Cedric F. Rey (City Labs), Johann Hernandez (City Labs), Krystine Pimentel (City Labs)
Simulation of A Stirling Linear Alternator Utilizing Sage and COMSOL
4:15–4:21PM CDT
Luis A. Rodriguez (NASA Glenn Research Center), Scott Wilson (NASA Glenn Research Center), David Gedeon (Gedeon Associates)
Testing Commercial Off the Shelf Thermoelectric Devices at Elevated Temperatures for Short Periods of Time
4:21–4:27PM CDT
Boyd A. Tolson (Univ. Dayton Research Institute), Steven Adams (Air Force Research Laboratory), Zachary Adamson (Air Force Research Laboratory)
Optical Spectroscopy for Key Analytical Measurements in Radiochemical Hot Cells to Support Pu-238 Production
4:27–4:33PM CDT
Luke Sadergaski (ORNL), Cannon Giglio (ORNL), Kristian Myhre (ORNL), Sara Gilson (ORNL), Adam Parkison (ORNL)
Remote Tracking of Material Inventory During Ion Exchange Column Separation by Spectrophotometry
4:33–4:39PM CDT
Cannon Giglio (ORNL), Luke Sadergaski (ORNL), Kristian Myhre (ORNL), Tom Hylton (ORNL), Adam Parkison (ORNL)
Maintaining Advanced Test Reactor Qualifications for Pu-238 Production at Idaho National Laboratory
4:39–4:45PM CDT
Jill R. Mitchell (INL)
The Nuclear Space Age: Solving for Regulatory Hurdles
4:45–4:51PM CDT
Ana Laura Villicaña (Georgetown Law), Bailey Reichelt (Aegis Space Law)
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