7–11 Sept 2025
Teaching Hub 502
Europe/London timezone

Mechanical design and testing of a magnetically coupled motion system for LHC wire scanners

TUPMO06
9 Sept 2025, 16:00
2h
Mountford Hall, Liverpool Guild of Students

Mountford Hall, Liverpool Guild of Students

Liverpool Guild of Students, University of Liverpool
Poster Presentation MC04: Transverse Profile and Emittance Monitors TUPMO

Speaker

Harry Sullivan (European Organization for Nuclear Research)

Description

Linear wire scanners are essential instruments for beam profile measurements in the Large Hadron Collider (LHC) at CERN. The current scanners installed in the machine have shown reliability and performance limitations in recent years. This work presents the development and validation of a bespoke motion system for the next-generation LHC wire scanners. The design replaces vacuum bellows with a planar magnetically coupled linear drive, coupled to a custom ceramic in-vacuum linear guide capable of high-velocity operation in ultra-high vacuum. A dedicated test rig has demonstrated the system’s positional accuracy, rigidity, and long-term durability, with over 80 000 cycles completed without degradation. This motion technology will be integrated into the first prototype scanner for impedance verification during the 2025 year end technical stop (YETS) and offers potential for wider application in demanding vacuum environments.

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Author

Harry Sullivan (European Organization for Nuclear Research)

Co-authors

Chiara Pasquino (European Organization for Nuclear Research) Federico Roncarolo (European Organization for Nuclear Research) Jonathan Emery (European Organization for Nuclear Research) Lewis Hanson (European Organization for Nuclear Research) Maria Teresa Ramos Garcia (Universitat Politècnica de Catalunya) Marie Faure (European Organization for Nuclear Research) Morad Hamani (European Organization for Nuclear Research) Nabil El-Kassem (European Organization for Nuclear Research) Raymond Veness (European Organization for Nuclear Research) William Andreazza (European Organization for Nuclear Research)

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