Impact assessment of tritium in an ITER hot cell
Abstract Tritium concentration analysis in temporary storage, where large numbers of containers store tritiated metallic waste temporarily, is performed numerically using a time dependent tritium concentration model under an atmosphere detritiation system (ADS) and vent detritiation system (VDS). The tritium concentrations in the temporary storage for both after tritium removal (T-removal) and without T-removal cases are estimated with respect to the capacity of ADS and VDS to find the influence of the tritium removal process. And also a numerical model for estimating tritium behavior in the concrete wall in the temporary storage is developed by using a one-dimensional diffusion model and tritium concentration model. The tritium permeated depths in the wall under the worst conditions are estimated for both after T-removal and without T-removal, respectively.