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| Home > Publications database > The MUTOMCA Project: Investigation of muon tomography for reverificationpurposes of spent fuel casks |
| Home > Publications database > The MUTOMCA Project: Investigation of muon tomography for reverificationpurposes of spent fuel casks |
| Contribution to a conference proceedings | FZJ-2025-01513 |
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2023
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Please use a persistent id in citations: doi:10.34734/FZJ-2025-01513
Abstract: The MUTOMCA (MUon TOMography for shielding CAsks) project is dedicated to investigatethe suitability of muon tomography for the re-verification of loaded spent fuel casks. The loss ofcontinuity of knowledge (CoK) in the hypothetical case that the containment and surveillancemeasures of EURATOM/IAEA would temporarily fail during the decades of dry storage of spentfuel, requires a technology for re-verification of the spent fuel enclosed in self-shielding casks. Insuch a case the inspectorates need to have a high degree of assurance on the amounts of nuclearmaterial stored in the dual-purpose casks (casks for transport and storage). The re-verification isparticularly challenging for conventional non-destructive-assay (NDA) methods, as the thickwalledCASTOR® V cask considerably attenuates the radiation emitted by the spent fuel.With the aim of proving the ability of muon tomography to detect a diversion of fuel assembliesin closed spent fuel casks, a two-module muon detector was designed, developed, constructed andcommissioned. The detector, which is based on drift tube technology, was used in a field trial inthe first months of 2023 in a dry storage facility in Germany to measure two CASTOR® V caskswith different inventories. During the implementation of the field trial sufficient data was recordedto secure the evaluation of the capability of the muon tomography to fulfil the safeguardsrequirements for re-verification. Based on the results of the field test, this contribution will assessthe potentials and the drawbacks of the experimental apparatus for the application of thereconstruction technique and will present a preliminary evaluation of the data.The MUTOMCA research project was established by INFN Padova and ForschungszentrumJülich GmbH (FZJ) in collaboration with BGZ Company for Interim Storage (BGZ Gesellschaftfür Zwischenlagerung mbH) and the European Commission, Directorate-General for Energy.
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