TEST OF PROTOTYPE DETECTOR FOR RETROSPECTIVE NEUTRON DOSIMETRY OF REACTOR INTERNALS AND VESSEL
2009
A prototype detector for simple and non-destructive retrospective neutron dosimetry was made. A Cadmium Telluride (CdTe) detector was used as a detector to measure the nuclides 54Mn, SgCo, and 60CO that were generated in reactor internals and vessels. The detector is surrounded by a tungsten collimator which shields background gamma-rays and detects gamma-rays originating from the measuring point. Neutron fluence is calculated using the pre-calculated response, measuring time, decay time and reactor power history. The applicability of this detector was tested by measuring parts of irradiated reactor internals.
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