Evaluation of Irradiation Properties for Fusion Structural Materials

On the basis of specific irradiation conditions in fusion reactor, the advantages and limitations of the main proposed irradiation facilities including ion irradiation, fission neutron irradiation, spallation neutron irradiation and fusion neutron irradiation were compared and evaluated.Ion accelerators, fission reactors and theory and modeling are expected to continue to play an indispensable role in studying the irradiation effect of fusion materials before the 14MeV neutron source is available. The corresponding relation between irradiation data from real fusion neutron and irradiation data from ion, fission neutron or spallation neutron irradiation has to be verified by irradiation using 14MeV high flux neutron source (e.g. IFMIF). The construction of powerful, economy-efficient fusion materials irradiation facility and the development of multi-scale numerical simulation are the inevitable choices to facilitate the commercialized application of fusion materials.