Niklas Hansson

Niklas Hansson researches the safety of the Swedish final repository for nuclear waste. Working as a PhD student in the nuclear chemistry group, he investigates the oxidative dissolution of the nuclear fuel in case of a canister breach and water intrusion scenario. The main mechanism for the oxidation is through the formation of locally oxidizing conditions at the fuel surface through radiolysis. The focus in the work is to explain the effect of hydrogen, which has been shown to protect the UO2-surface from radiolytic oxidation.