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.In this 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.

► Article is focused on the beam dump cooling system from the IFMIF-EVEDA accelerator.
► Total power of 1.125 MW deposited by the 9 MeV, 125 mA deuteron beam.
► Variable channel width to meet the heat extracting criteria.
► Cooling circuit design based on keeping the cooling bulk close to water boiling point.
► 3D fluid analysis of the most problematic regions of the cooling channel.