Description
Water that enters a damaged canister and reaches the cavities between the fuel assemblies and the canister insert is affected by the ionizing radiation emitted by the spent fuel. This causes the excitation, or ionisation of water molecules followed by breaking of their chemical bonds (radiolysis) producing primarily free electrons, OH-radicals and hydrogen atoms.
SKB Number
SKB FEP Number
F10
Main Category
Main category for FEP
Internal process
System Component
System component to which the FEP applies
Fuel/cavity in canister
Handling
Explanation of how the FEP is treated
Intact canister. Neglected.
Failed canister. Neglected except for fuel dissolution, see that process (F12).
References
Bibliographic references to obtain more information
SR-Site Fuel and canister process report, TR-10-46, Section(s) 1.6, 2.5.3