About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Special Topics in Nuclear Materials: Reproducibility and Uncertainty; Hydrogen Effects; Space and Microreactor Systems
|
| Presentation Title |
Sensitivities and Uncertainties in HFIR Materials Irradiation Experiments |
| Author(s) |
Adrian Schrell, Christian Petrie, Nick Russell, Richard Howard |
| On-Site Speaker (Planned) |
Adrian Schrell |
| Abstract Scope |
As we push towards building new nuclear reactor systems, neutron irradiation plays a critical role in designing and qualifying materials for these designs. However, neutron irradiation is expensive and takes significant time to reach a high dose. It is important that we better understand and discuss the sensitivities and uncertainties that exist within the irradiation design space to provide realistic bounds on the environmental conditions and assist in the interpretation of the post-irradiation examination. On the front-end, uncertainties in the radiation transport and depletion models, machining tolerances, material properties, and heat transfer calculations are important to consider. On the back end, passive measurements of irradiation temperatures and neutron spectrum/fluence can add uncertainty to the results. This work summarizes experimental uncertainties, the extent to which they influence post-irradiation results, and some potential paths forward to improve irradiation experiment design and thereby the material science they help produce. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Characterization, |