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DeFecTdb is a database of DFT calculations of radiation-induced defect structures in materials of interest to nuclear fusion and fission applications. It is developed at the IAEA's Atomic and Molecular Data Unit and CEA Paris-Saclay.

There are currently 29 datasets available.

A periodic network of screw dislocations in bcc Fe. Image courtesy of Alexandra Goryaeva and Mihai-Cosmin Mărinică, CEA Saclay.