17–22 May 2026
C.I.D
Europe/Zurich timezone

Reliability Analysis of the Quench Detection System upgrade for the LHC Individually Powered Quadrupoles and Dipoles and the Inner Triplet magnets

WEP6133
20 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC6.T22: Reliability, Operability Poster session

Speaker

Lukas Felsberger (European Organization for Nuclear Research)

Description

The Quench Detection Systems (QDS) are essential for protecting the LHC superconducting magnets during quench events. During Long Shutdown 3, several of these systems will undergo major renovation, such as for the Individually Powered Quadrupoles and Dipoles and the Inner Triplet magnets. Given their critical role, a comprehensive reliability analysis was performed to ensure that the probability of critical failures meets stringent requirements while minimizing the impact on machine availability.

Different system architectures were evaluated and compared. Failure probabilities were estimated using analytical models that account for redundancies, inspection strategies, and demand frequencies. The results guided the selection of an optimal architecture and provided insights into critical monitoring and testing requirements during operation. Additionally, the impact on operational availability was assessed using field data from comparable existing systems.

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Author

David Westermann (European Organization for Nuclear Research)

Co-authors

Dr Daniel Wollmann (European Organization for Nuclear Research) Geoffrey Morris (European Organization for Nuclear Research) Jan Uythoven (European Organization for Nuclear Research) Lukas Felsberger (European Organization for Nuclear Research) Martin Dazer (University of Stuttgart) Reiner Denz (European Organization for Nuclear Research)

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