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Description
Although the stored beam energy in the FCC-ee will be lower than in the LHC, the extremely small vertical beam size leads to a high energy density. This poses a risk of damaging accelerator components, making machine protection essential. A Beam Loss Monitoring (BLM) system capable of quickly detecting and localizing beam losses is therefore needed to protect the machine by triggering the beam abort sequence when power deposition exceeds safe limits.
This work presents preliminary simulation results of energy deposition in ionisation chambers based on the LHC design, placed along a section of an FCC-ee arc half-cell. The expected detector responses are presented for losses from a 45.6 GeV electron beam in different scenarios. Those include impacts onto the beam pipe in both shielded and exposed parts of a dipole magnet.
