1. Magnet activities in SPS during EYETS 2016-2017
J. Bauche, on behalf of the SPS Magnet Team
SPS Tech. Coord. meeting,

2. Before Christmas break
Inspection “Magnet Patrol” (IMPACT 84646)
Main magnets and transfer line quadrupoles
Removal of the magnet covers
Audio-visual inspection in pulsed mode
Machine conditions
Machine closed to non-MNC personnel during tests
Power, cooling, interlocks, access, and controls operational
Access system in «Magnet Patrol» mode
Support from other groups
BE/OP to power the magnets and lock the accesses
All other teams ready to intervene in case of system/service failure (EPC, EL, MPE, ICS, CV, etc…)
Already scheduled in SPS planning: 12/12 (covers) and 13-14/12 (tests). Transfer line quadrupoles possibly on 14/12 PM

3. Before Christmas break
High voltage tests (IMPACT 84646)
To detect weaknesses in main magnet circuits insulation
Main dipoles and quadrupoles (962 units)
Busbars and water cooled cables are tested together with the magnets!
Machine conditions
Machine closed, in dedicated configuration (CIS system of EPC)
Cooling circuits running
Separation of power converters from load
Test +/- 6kV on dipole and +/- 4 kV on quadrupole circuits, from BA3
In case of failure, localization in the machine, repair, and re-test
Support from other groups
TE/EPC for the test, BE/OP to lock the accesses (machine closed)
Already scheduled in SPS planning: 14/12

4. Preventive/corrective exchange of main magnets
After Christmas break
Preventive/corrective exchange of main magnets
(IMPACT 84647)
Expected 10 to 15 main magnets to be replaced
Based on audio-visual inspection and HV test results
Coil movements on quadrupoles and dipoles
Water leaks
Any other issue detected until end of run 2016 (already XXX)
Machine conditions
Free access to material lift and passage for transport equipment
Demin. water circuits purged
Support from other groups
EN/HE, TE/VSC, BE/ABP/SU
Main magnet replacement

5. Before and After Christmas break
Removal/reinstallation of magnets for LIU
(IMPACT 84647)
Magnets removed from machine for aC coating and Impedance reduction program
Program managed by VSC
- 2 QD + 2 SSS girders (close to QD magnets) in half-cells 507 and 509;
- 9 SSS girders (close to QF magnets) in half-cells 420, 422, 424, 426, 428, 430, 432, 434, 500.
Machine conditions
Free access to material lift and passage for transport equipment
Support from other groups
EN/HE, TE/VSC, BE/ABP DS
LSS
ARC
BA4
BA5
existing aC
SSS QF works
MBB works
Drift tube
works
9 SSS QF to transport
2 SSS QD to transport
2 QD to transport
Courtesy P. Cruikshank

6. Magnet general maintenance
After Christmas break
Magnet general maintenance
(IMPACT 85482)
Corrective / preventive maintenance
Main dipole pole shim inspection and repair
Busbar system inspection, cleaning of salpeter under covers
Minor activities on auxiliary magnets
Machine conditions
No special request, activities transparent for other teams
Support from other groups
None
Radiation protection
For any activity potentially generating significant dose, a specific IMPACT (+ WDP if needed) will be set-up, e.g. for the glitch hunt in 120
Broken pole shim

7. Many thanks in advance for your support!