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@INPROCEEDINGS{Aymanns:1021890,
      author       = {Aymanns, Katharina and Lorenzon, Altea},
      title        = {{I}nvestigation of muon tomography for re-verification
                      purposes of spent fuel casks},
      reportid     = {FZJ-2024-01038},
      pages        = {125-127},
      year         = {2023},
      abstract     = {The MUTOMCA (MUon TOMography for shielding CAsks) project
                      is dedicated to investigate the suitability of muon
                      tomography for the re-verification of loaded spent fuel
                      casks. The loss of continuity of knowledge (CoK) in the
                      hypothetical case that the containment and surveillance
                      measures of EURATOM/IAEA would temporarily fail during the
                      decades of dry storage of spent fuel, requires a technology
                      for re-verification of the spent fuel enclosed in
                      self-shielding casks. In such a case the inspectorates need
                      to have a high degree of assurance on the amounts of nuclear
                      material stored in the dual-purpose casks (casks for
                      transport and storage). The re-verification is particularly
                      challenging for conventional non-destructive-assay (NDA)
                      methods, as the thick-walled CASTOR® 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 assemblies in closed spent fuel casks, a
                      two-module muon detector was designed, developed,
                      constructed and commissioned. The detector, which is based
                      on drift tube technology, was used in a field trial in the
                      first months of 2023 in a dry storage facility in Germany to
                      measure two CASTOR® V casks with different inventories.
                      During the implementation of the field trial sufficient data
                      was recorded to secure the evaluation of the capability of
                      the muon tomography to fulfill the safeguards requirements
                      for re-verification. Based on the results of the field test,
                      this contribution will assess the potentials and the
                      drawbacks of the experimental apparatus for the application
                      of the reconstruction technique and will present a
                      preliminary evaluation of the data. The MUTOMCA research
                      project was established by INFN Padova and Forschungszentrum
                      Jülich GmbH (FZJ) in collaboration with BGZ Company for
                      Interim Storage (BGZ Gesellschaft für Zwischenlagerung mbH)
                      and the European Commission, Directorate-General for
                      Energy.},
      month         = {May},
      date          = {2023-05-22},
      organization  = {INMM $\&$ ESARDA Joint Annual Meeting
                       2023, Vienna (Austria), 22 May 2023 -
                       26 May 2023},
      cin          = {IEK-6},
      cid          = {I:(DE-Juel1)IEK-6-20101013},
      pnm          = {1411 - Nuclear Waste Disposal (POF4-141) / Neu- und
                      Weiterentwicklung von Konzepten, Methoden und Techniken für
                      die internationale Kernmaterialüberwachung, insbesondere im
                      Rahmen der nuklearen Entsorgung (SAFEGUARDS-3) (02W6279)},
      pid          = {G:(DE-HGF)POF4-1411 / G:(BMWi)02W6279},
      typ          = {PUB:(DE-HGF)8},
      doi          = {10.34734/FZJ-2024-01038},
      url          = {https://juser.fz-juelich.de/record/1021890},
}