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This work presents an analysis of the IFMIF-DONES design maturity and the necessary activities to increase it up to the level required to launch the procurement phase. The analysis has been performed using a Technology Readiness Level (TRL) methodology. The TRL scale and definitions employed in EU Horizon programs have been found to be appropriate for this assessment, with some modifications to consider the IFMIF-DONES peculiarities. The level of Technology Readiness needed for launching the procurement of each subsystem or component ("target TRL") has been established. From the comparison between the present TRL and the target TRL, the elements requiring further development and validation have been identified and the experimental activities needed to increase their maturity have been defined. The results of the TRL assessment for the accelerator, lithium and test systems of the facility are presented together with a brief outline of the most relevant validation needs identified.
Brañas et al. (Mon,) studied this question.