About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Chemometric Modeling to Determine Uranium and Fission Product Concentrations Using NIR Spectroscopy |
| Author(s) |
Isaac Harrison, Jeremy T. Moon |
| On-Site Speaker (Planned) |
Isaac Harrison |
| Abstract Scope |
Near-infrared (NIR) spectroscopy offers a promising, non-destructive alternative for real-time monitoring of uranium and fission product concentrations in complex molten salt matrices. In this study, we apply multivariate chemometric techniques to correlate NIR spectral features with concentrations of key actinides and fission products in simulated molten salt nuclear process streams. Calibration models were developed using artificial neural networks to incorporate nonlinear responses of the absorption spectra. Experimental datasets were generated using prepared mixtures of uranium and trivalent lanthanide salts in molten chloride media, and spectral data were collected across the 800–2400 nm range. Model performance was validated using cross-validation and independent test sets. This approach attempts to demonstrate the feasibility of using NIR-based chemometric modeling for rapid, in situ compositional analysis, with implications for advanced safeguards, process control, and molten salt reactor monitoring. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Pyrometallurgy, Other |