Decommissioning of a Medical Cyclotron using ISOCS TM Scope: • RDS-112 Positron Emission Tomography (PET) cyclotron manufactured by CTI Molecular Imaging, Inc., in Knoxville, Tennessee, USA, producing F-18 and C-11 PET radiochemicals. • Operated for eight years and decommissioned in 2007. • Components ranging from 0.1 g targets to 10,000 kg concrete shields. • Activities ranged over nine orders of magnitude. Key Drivers: • Thorough radiological characterization required for shipping and disposal. • Locate and characterize all activation hotspots. • Wide range of activation products present in activated metals and concrete, including Fe-55, Mn-54, Zn-65, Sb-124, W-181, Ta-182, Co-57, Co-60 and Cs-137. • Very limited timeframe available for measurements (2 day

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