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Most magnetized planetsare known to possess radiation belts, wherehigh-energy charged particles are trapped inlarge numbers. The possibility that a radiationbelt could exist also in the confined regionbetween Saturn and its main rings has beenproposed on the basis of remote sensing obser-vations and simulations. It was not until thefinal 5 months of the Cassini mission that in situmeasurements were obtained from this regionwith the Magnetosphere Imaging Instrument(MIMI). This paper provides an overview ofthese measurements andtheir interpretation.