A method was developed to determine the edge position of uranium blocks embedded in concrete, using Muon Scattering Tomography. This method is useful for nuclear waste management, as it provides a precise image of high-Z materials inside nuclear waste drums. Simulations were performed of uranium blocks with different sizes, encased in a concrete tube, and their lengths were reconstructed. The resolution obtained for the reconstructed lengths was 2.9 ± 0.5 mm and the method works down to a smallest size of 5 mm. This result was obtained without including the muon momentum. The same method was then applied including the momentum information, resulting in a better resolution of 0.96 ± 0.03 mm, and works down to a smallest size of 2 mm.
- Analysis and statistical methods
- Search for radioactive and fissile materials
Frazão, L., Velthuis, J. J., Maddrell-Mander, S., & Thomay, C. (2019). High-resolution imaging of nuclear waste containers with Muon Scattering Tomography. Journal of Instrumentation, 14, [P08005]. https://doi.org/10.1088/1748-0221/14/08/P08005