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Radiochemical Challenges of Two Year Fuel Follow-up At the end of the previous operating cycle, Te-123m was identified in primary coolant and liquid waste. It was traced to a partially damaged secondary startup source, which contained small amounts of elemental Sb-123 (Sb-123+d à Te-123m +n). The damaged source was relocated to the SFP, but was not encapsulated or removed. Hence, some Te-123m is expected in primary coolant after the recent outage. My discussion centers on
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