1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Overview of power deposition profiles in the LHC off-momentum cleaning section in Run 3

MOPM014
2 Jun 2025, 16:00
2h
Exhibiton Hall A _Magpie (TWTC)

Exhibiton Hall A _Magpie

TWTC

Poster Presentation MC1.A01 Hadron Colliders Monday Poster Session

Speaker

Volodymyr Rodin (European Organization for Nuclear Research)

Description

Off-momentum losses at the start of the LHC acceleration ramp in proton runs gave rise to multiple beam dumps by exceeding Beam Loss Monitor (BLM) thresholds in the momentum cleaning insertion (IR3). Accurately estimating the power deposition profiles in IR3 is necessary to determine where BLM thresholds can be optimized, thereby reducing unnecessary beam dumps and improving machine availability and performance. Understanding the loss limits in IR3 is crucial for future High-Luminosity LHC (HL-LHC) performance.
In this study, we present FLUKA power deposition results and introduce a newly developed simulation model for BLM benchmarking in IR3. We provide a comprehensive overview of the power deposition in magnets and collimators, identifying potential bottlenecks in the system. Our simulations were benchmarked against multiple fills from 2023 and 2024 that led to beam dumps. The obtained results provide a deeper understanding of the IR3 collimation performance in view of HL-LHC operation in IR3.

Funding Agency

CERN

Region represented Europe
Paper preparation format LaTeX

Author

Volodymyr Rodin (European Organization for Nuclear Research)

Co-authors

Roderik Bruce (European Organization for Nuclear Research) Luigi Salvatore Esposito (European Organization for Nuclear Research) Anton Lechner (European Organization for Nuclear Research) Daniele Mirarchi (European Organization for Nuclear Research) Sara Morales Vigo (European Organization for Nuclear Research) Stefano Redaelli (European Organization for Nuclear Research) Belen Salvachua (European Organization for Nuclear Research) Natalia Triantafyllou (European Organization for Nuclear Research)

Presentation materials

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