| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Methods for online quantification of U and Ln fission product species using UV-Vis-NIR optical spectroscopy |
| Author(s) |
Thomas Selmi, Dev Chidambaram, Jeremy Moon |
| On-Site Speaker (Planned) |
Jeremy Moon |
| Abstract Scope |
Online monitoring techniques are needed to accelerate the development of pyroprocessing and molten salt reactors by enabling more rapid licensing, regulation, and operation. Online monitoring offers enhanced materials control and accountability (MC&A) schemes for special nuclear material and enables more effective control of process chemistry and nuclear parameters during steady-state and transient conditions, as well as providing early detection of off-normal and accident conditions. Optical spectroscopy is well suited for online monitoring for nuclear systems due to its ability to be performed remotely using fiber-optics, keeping expensive equipment and users in shielded facilities. Additionally, optical techniques boast a wide range of chemical sensitivity while being rapidly performed in-situ for real-time process monitoring. We attempt to show improvements in quantification of important actinide and lanthanide species using UV-vis-NIR spectroscopy coupled with Raman spectroscopy and chemometric analysis. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Pyrometallurgy, High-Temperature Materials |