IPAC'26 - the 17th International Particle Accelerator Conference

Towards a beam dump design for the HL-LHC: Analysis of Run 3 dumps and energy deposition studies on the HL-LHC TDE assembly

THP4108

21 May 2026, 16:00

2h

C.I.D

Poster Presentation MC4.T20: Hadron accelerators: Targetry and Dumps Poster session

Speaker

Helene Guerin (European Organization for Nuclear Research)

Description

In the LHC, two beam dumps (TDEs) ensure the safe and reliable disposal of the extracted beams. In Run 4, the stored beam energy will increase from 430 MJ achieved so far in Run 3 to 710 MJ at maximum for each beam. A new design is therefore being conceived for the HL-LHC TDEs, capable to withstand the rise in dumped beam energy. This contribution includes an analysis of the beam energy dumped in Run 3 and shows energy deposition studies on the new design of the HL-LHC TDE. The energy absorption breakdown between the main components of the new design is presented, together with the leakage towards the surrounding shielding and cavern. Transverse and longitudinal peak energy densities are also shown, for standard dumps and for the accidental beam dilution failure scenario.