2 papers
cs.CE2026
A multi-level preprocessing and modelling framework for spectral imaging of microplastics
Zina-Sabrina Duma, Tenzin Tsering, Sara Heikkinen +4
Spectral imaging provides chemically specific and spatially resolved analysis of microplastics, but its routine application is hindered by large data volumes, acquisition artefacts…
math.NA2026
Robust Model-Based Iteration for Passive Gamma Emission Tomography
Tommi Heikkilä, Sara Heikkinen, Riina Rimppi +1
Passive Gamma Emission Tomography (PGET) is an IAEA-approved technique for verifying spent nuclear fuel assemblies prior to geological disposal. Reconstructing the emission and att…