Activated Corrosion Products are best described as?

• A. Fission products
• B. Contaminants
• C. Activated Corrosion Products
• D. Shielding materials

Answer: (C)

Activated corrosion products are the radioactive atoms that form when corrosion products from reactor materials are exposed to neutron irradiation. In the reactor environment, elements from those corrosion films capture neutrons and become radioactive, so they can be carried in the coolant or settle on surfaces, increasing radiation dose rates in areas you work. This is different from fission products, which come from fuel splitting, and from ordinary contaminants whose radioactivity isn’t due to neutron activation. A well-known example is cobalt-60 arising from cobalt impurities in stainless steel, which can contribute significant gamma radiation. Because these activated species cling to surfaces or circulate in coolant, they’re a key source of workplace dose and are managed through monitoring, chemistry control, and decontamination efforts.