MAB meeting #29 - Assessment of magnets that are planned to be exchanged during LS3

Monday 15 Sept 2025, 10:30 → 12:30 Europe/Zurich

30/7-010 (CERN)

Arjan Verweij (CERN), Lucio Fiscarelli (CERN), Massimo Giovannozzi (CERN), Mateusz Jakub Bednarek (CERN)

• Main dipoles: A18L1 (QH issue), C28L6 (QH issue)
• Main quads: MQ.14L3 (QH issue), MQ.11R8 (QH issue)

10:30 → 10:40 Approval of the minutes

Speakers: Arjan Verweij (CERN), Massimo Giovannozzi (CERN)

10:40 → 11:50 Presentation of magnets to replace: A18L1, C28L6, MQ.14L3, MQ.11R8

Speakers: Jose Ferradas Troitino (CERN), Sandrine Le Naour (CERN)

LS3_MBA18L1.pdf

LS3_MBA18L1.pptx

LS3_MBC28L6.pdf

LS3_MBC28L6.pptx

LS3_Q11R8.pdf

LS3_Q11R8.pptx

LS3_Q14L3.pdf

LS3_Q14L3.pptx

MB1043IDCard.pdf

MB2241IDCard.pdf

MB2332IDCard.pdf

MB2396IDCard.pdf

SparesToBeInstalled.txt

SSS122IDCard.pdf

SSS503IDCard.pdf

SSS523IDCard.pdf

Cold tests & magnetic/geometrical measurements for the spares:

• MB2396 – Tested (last time) in June 2022. Last fidu in 2022
• MB2332 – Tested (last time) in March 2024. Last fidu in 2024.
• SSS523 – Tested (last time) in 2017, no recent magnetic or geometrical measurements
• SSS072 (cold-mass) – Tested (last time) in 2011, no recent magnetic or geometrical measurements. We will do the full fidusialization for the SSS072 after cryostating.

11:50 → 12:00 Final assessment

Speakers: Arjan Verweij (CERN), Massimo Giovannozzi (CERN)