Abstract
The inner surfaces of austenitic stainless steel tubing specimens were filmed using diverse techniques. The objective was to identify those films most effective in minimizing the incorporation of radioactive 60Co following exposure under simulated boiling water reactor (BWR) and pressurized water reactor (PWR) primary coolant conditions. The amount of 60Co pick-up was measured by using γ spectrometry. The results showed that some chromium-rich films are effective in simulated PWR water, and films formed in oxygen-rich air or water are effective in simulated BWR water. An electroless layer of palladium offered the highest resistance to incorporation by 60Co in both types of coolant.
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