Design and analysis of the IFMIF–EVEDA beam dump cooling system

The IFMIF–EVEDA beam dump is designed to stop a 9 MeV, 125 mA continuous wave deuteron beam that deposits along its surface a total of 1.125 MW. The beam dump design is based on a 2.5 m long copper cone whose inner surface absorbs the beam. This piece is cooled by water flowing at high velocity through the annular channel formed between it and a second piece (shroud) made of four truncated cones of slightly different slopes. s paper the beam dump cooling system will be briefly described, and the relevant 1D and 3D results will be presented paying especial attention to the computational fluid dynamics results.