Abstract
The IFMIF-EVEDA accelerator will be a 9MeV, 125mAcw deuteron accelerator prototype for verifying the validity of the 40MeV accelerator design for IFMIF. A beam dump designed for maximum power of 1.12MW will be used to stop the beam at the accelerator exit. The conceptual design for the IFMIF-EVEDA accelerator beam dump is based on a conical beam stop made of OFE copper. The cooling system uses an axial high velocity flow of water pressurized up to 3.4×105Pa to avoid boiling. The design has been shown to be compliant with ASME mechanical design rules under nominal full power conditions. A sensitivity analysis has been performed to take into account the possible margin on the beam properties at the beam dump entrance. This analysis together with the study of the maintenance issues and the mounting and dismounting operations has led to the complete design definition.
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