1. Short LHC-TS2 2017 week 38 Confirmed by LMC on 16th August

2. LHC machine Schedule for YETS, INDICO 652926 - EDMS 1838020
NEW SCHEDULES
LHC 5 days  3 days
Injectors 36 hours  24 hours
Today
LHC Schedule 2017
Injectors Schedule 2017
LHC machine Schedule for YETS, INDICO EDMS

3. LHC machine Schedule for YETS, INDICO 652926 - EDMS 1838020
General reminders
All LOCK OUT requests via Impact
LHC-TS2-2017: from Monday 18th 6am, to Wednesday 20th 5pm
The LHC machine will be in Automatic Restricted Mode
Piquet’s phone number: from Monday 18th to Wednesday 20th
INDICO: (LHC-TS2-2017)
OSS website (planning, constraints…):
LHC machine Schedule for YETS, INDICO EDMS

4. Minimal interventions needed to ensure run22017 reliable
LHC Machine
Systems/groups
Intervention
Duration
Controls
CS-CCR-PM2 (LHC Post Mortem backup storage server)
2 hours
Power converters
Problem with the Diodes oil tank in P4
1 day
Cryogenics
P18/P2: Safety temp. sensors must be investigated & repaired on compressor station
P4: oil level (CP9), Relay to re-wire (CP7), Filter regeneration of the 1.8K pumping line
P6: Exchange and repair of a cryoplant turbine speed controller
1,5 days
+ 8 hours
Fire detection
Quarterly maintenance (75%)
The risk of false alarms can increase
3 days
Partially complete
LHC Experiments
Facility
Intervention
Duration
ATLAS
Fixing minor problems
1 day
CMS
Ensuring data quality and efficiency of the CMS pixel detector
Exchange of strip detectors in Roman Pots
3 days
LHCb
Replacement of the sniffer modules
LHC machine Schedule for YETS, INDICO EDMS

5. LHC - What can be done in the shadow of a 3 days TS
Systems/groups
Intervention
Duration
BE-BI
intervention for the BPM system to address issues with unpredictable signal reflections
few hours /system
Installation of additional BLMs close to 16L2 magnet (need 600 meters of cables)
Under discussion with EN-EL
3 days
1 diamond BLM
BE-RF
Test the "fine-alignment" procedure of the digital and analogue feedbacks as this was found more critical with the Full Detuning scheme. Must be followed by a test with
few hours
EN-CV
Underground maintenance (part can be done)
EN-HE
UX45 crane consolidation
4 hours
Measurements of PZ33, PM15& PM76 lifts
1-2 days
Vacuum
Preventive and corrective maintenance
X-rays of the DFBX to Q3 PIM condition in 5L & 5R as input for triplet working group and potential realignment study during YETS (to be confirmed if possible in 3 days)
Task Force on the alignment of the Triplets
1 night+2 days
Survey
Measurements of DFBX and Triplets in P2 & P8 (to be confirmed if possible in 3 days)
1+2 days/pt
El. Network
« Anti-fouine » protections installation at 66kV EHT102/2E at P2
Intervention compatible with the cryogenics if maximum 4 hours
0,5 day
Upgrade of the control panel and PLC DIESEL (P3)
2,5 days
Opt. Fibers & cables
Connection of an optical fibre cable in the elevator shaft of LHC Point 2
Cryogenics
Highly recommended interventions: P6: Installation of the turbine TU7 with new insulation design. P8: Modification of Variable Frequency Controllers on 1.8K compressor station to allow operation during SVC switch P5 CMS: Cold box regeneration and Fuse of PLC DO cards.
2 days
VIP
Prime minister Republic of Latvia - Set.20th
General
VICs and inspections
CANCELLED – due to
problem Q16L2 magnet
LHC machine Schedule for YETS, INDICO EDMS

6. LHC - What will have to be postponed to YETS
Systems/groups
Intervention
Duration
Survey
Installation of longitudinal monitoring sensors in 5L and 5R
4 days
Power converters
FGClites test on 120A, 600A and 4-6-8kA with cryo conditions
1 day
(could impact on the restart)
EN-CV
Complete maintenance
+ 2 days
BE-BI
Disconnect some SEM monitors from the beam dump that have recently been causing beam interlock issues
To be defined by BE-BI
BLM and BPCL issues in TT2 and TT10 (injectors)
BRAN maintenance in LSS4 and 8
Facility
Intervention
Duration
CMS
CMS detector gas system: move to an open gas system
5 days
LHC machine Schedule for YETS, INDICO EDMS

7. LHC machine Schedule for YETS, INDICO 652926 - EDMS 1838020
Open Points
Task Force on the alignment of the Triplets
Measurements of DFBX and Triplets in P2 & P8  IT emptied
X-rays of the DFBX to Q3 PIM condition in 5L & 5R as input for triplet working group and potential realignment study during YETS  IT emptied
Cryo works compatible ??
Radiation Protection
P1 & P5  access to the LSS when? Beginning of the TS?
TOTEM activities in the LSS5
P3 & P7
Fire detection P7 (UJ76 tunnel)
EN-CV maintenance
Lock-out need??
LHC machine Schedule for YETS, INDICO EDMS

8. LHC machine Schedule for YETS, INDICO 652926 - EDMS 1838020
Back-up Slides
LHC machine Schedule for YETS, INDICO EDMS

9. Injectors & Experimental Areas - Minimal interventions needed..
.. to ensure run22017 reliable
Facility
Group
Intervention
Duration
Linac2
BE-ABP
L2 gaz bottle
1 hour
SPS
EN-CV
BA2 pump repair (currently no back-up)
4 hours PS
BE-RF
Change the cooling valves of RF cavity 11
2 hours
925 puisard (high level)
Access interlocked with injection to HiRadMat
36 hours
in the shadow of the 3 days
.. for LIU project
PSB
BE-RF
LLRF firmware upgrade (Btrain)
Allow tests and validation with the new Btrain distribution system
2 hours
BE-BI
EN-ACE
TE-VSC
Change the prototype Wire Scanner in 4L1
Correct a mechanical issue and be able to fully exploit the performance. The iTS3 is the last opportunity to make tests before we assemble the full LIU series of instruments.
24 hours PS
Realign the BGI in SS82
Proposal to align the blue table only vertically, no tilt or transversal movement. The maximum movement will be max. 1 to 2 mm with TE-VSC supervision.
1 hour
Tests of PS 80MHz prototype fast tuner
Decision on the design
10 hours
LHC machine Schedule for YETS, INDICO EDMS

10. Injectors & Experimental Areas - Minimal interventions needed..
.. for the De-cabling project
Facility
Group
Intervention
Duration PS
Pre-VIC with the fire brigade and inspection of the avoids
2 hours
EN-EL
Pull RF cables to liberate an obsolete patch panel
This must be completed before the end of the run to start the de-cabling once the machines are stopped in December
10 hours
.. for Experimental Areas
AWAKE
TE-MPE
Modify the WIC interlock system
Mandatory for the electron beam program
8 hours
EN-CV
Check of piping system for automatic release of the sump water
10 hours
North Area (TDC2, TCC2)
HSE-DI
Equipment experts
Cable inspection in LSS2, TDC2 and TCC2 (tbc)
Decide on priorities for action during LS2
+ 48h RP cool-down
in the shadow of the 3 days
North Area (TCC2)
H2 TAX inspection
.. for HL-LHC crab-cavity
SPS
EN-EL
Anticipation of work before the YETS
Pull cables for electrical distribution
Connectors on new cables
Paint the transport reservation zone in TA6
Install optical fibers for survey in LSS6…
Critical overall schedule during the YETS
12 to 24 hours
LHC machine Schedule for YETS, INDICO EDMS

11. LHC machine Schedule for YETS, INDICO 652926 - EDMS 1838020
Injectors & Experimental Areas - What can be done in the shadow of a 24 hours iTS
Facility
Group
Intervention
Duration
Linac2
BE-ABP
Change ventilation filters of the faraday cage
2 hours
Additional information
Ion chain: Exchange the Linac3 plasma chamber and to re-condition the source 1 week
LHC machine Schedule for YETS, INDICO EDMS