About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
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Seaborg Institutes: Emerging Topics in Actinide Sciences
|
Presentation Title |
RIMS analysis of tagged uranium with application to Intentional Forensics |
Author(s) |
Danielle Shulaker, Michael Savina, Brett Isselhardt, Naomi Marks |
On-Site Speaker (Planned) |
Danielle Shulaker |
Abstract Scope |
Traditional nuclear forensics leverage various measurements to characterize signatures in fuel cycle materials. Recent research has focused on adding isotopically perturbed “taggants” to fuel cycle materials to aid in provenance assessment. However, widely used isotope dilution mass spectrometry methods require completely dissolved material and time-intensive chemical separation prior to analyses. In contrast, resonance ionization mass spectrometry (RIMS) has several advantages: (1) high spatial resolution and sensitivity compared to other techniques; (2) discrimination against isobaric interferences by selectively ionizing only the elements of interest, eliminating the need for chemical separation of samples. We present a case study for measuring various taggants in uranium oxides before and after irradiation. Micrometer-sized single particles were analyzed by RIMS at the laser ionization of neutrals (LION) at Lawrence Livermore National Laboratory. Ultimately, this method allows for accurately and precisely measuring taggant compositions in tagged uranium, enabling rapid and robust assessment of material provenance. LLNL-PROC-866052. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Characterization, |