About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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Accelerated Qualification of Nuclear Materials Integrating Experiments, Modeling, and Theories
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Presentation Title |
Evaluation of Low-length Kr Diffusion in UO2 and ADOPTŪ using Time-of-flight Elastic Recoil Detection (ToF-ERDA) |
Author(s) |
Denise Adorno Lopes |
On-Site Speaker (Planned) |
Denise Adorno Lopes |
Abstract Scope |
In this work we present the evaluation of low-length Kr diffusion in UO2 and ADOPT™ fuel by use of middle energy ion implantation followed by Time-of-Flight Elastic Recoil Detection Analysis (ToF-ERDA). Depth composition profile in nanometer scale was obtained in implanted and after annealing, 800oC /1h, samples. The overall drift in 84Kr profile could be associated with the low-length diffusion mechanism, and a diffusion by dragging mechanism is observed for ADOPT™. The method presented here provide a direct comparison with atomistic scale modeling data and can be of service as a separate effect test under the Accelerate Fuel Qualification initiative. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Characterization, Modeling and Simulation |