Abstract
The Plutonium-238 Supply Program at Oak Ridge National Laboratory has developed enhanced capabilities for characterizing materials utilized and produced throughout the flowsheet. Techniques such as powder X-ray diffraction, scanning electron microscopy, digital microscopy, simultaneous thermal analysis, and laser flash analysis are jointly applied to answer key materials questions. The materials of concern-including radioactive neptunium-237 (237Np) solids synthesized during target fabrication steps and nonradioactive solids such as aluminum metal and anion and cation exchange resins-have all benefited from enhanced characterization. The capabilities described herein support agile response to programmatic questions and facilitate fundamental research related to neptunium materials chemistry.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of Nuclear and Emerging Technologies for Space, NETS 2025 |
| Publisher | American Nuclear Society |
| Pages | 168-173 |
| Number of pages | 6 |
| ISBN (Electronic) | 9780894482236 |
| DOIs | |
| State | Published - 2025 |
| Event | 2025 Nuclear and Emerging Technologies for Space, NETS 2025 - Huntsville, United States Duration: May 4 2025 → May 8 2025 |
Publication series
| Name | Proceedings of Nuclear and Emerging Technologies for Space, NETS 2025 |
|---|
Conference
| Conference | 2025 Nuclear and Emerging Technologies for Space, NETS 2025 |
|---|---|
| Country/Territory | United States |
| City | Huntsville |
| Period | 05/4/25 → 05/8/25 |
Funding
This manuscript has been authored by UT-Battelle LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). This work is supported by the Plutonium-238 Supply Program at the US Department of Energy's Oak Ridge National Laboratory. Funding was provided by NASA's Science Mission Directorate and was administered by the US Department of Energy's Office of Nuclear Energy under contract DEAC05-00OR22725. The authors acknowledge the contributions and assistance of the Radiochemical Engineering Development Center's Materials Operations group-including Phil Burke, Cory Dryman, John Dyer, Kaara Patton, Curt Porter, and Joseph Renfro-in collecting the 237Np samples discussed in this work.
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