1. EYETS planning
A.Tauro

2. EYETS planning meeting, 2 Dec 2016 - A.Tauro
EYETS general info
EYETS duration: from 5 Dec to 30 Apr, 21 weeks beam to beam (w49 to w17)
LHC back to BE-OP on Friday 14th April (powering tests)
LHC closed
Beam
21 weeks
EYETS planning meeting, 2 Dec A.Tauro

3. LHC-EYETS: linear schedule InWork
EYETS planning meeting, 2 Dec A.Tauro

4. EYETS planning meeting, 2 Dec 2016 - A.Tauro
Main activities
Replacement cavern lift
Replacement L3 PC thyristors
Install cable trays (EN-EA-CT) and LS2 fiber prototypes (EN-EL-CF)
Open L3 doors
Detectors:
Replace TOF TDC boards, displace 12 modules
Repair broken TRD optical connections
Reprogramming firmware of PHOS trigger units, open one module (LV connection issue). PHOS warmed up mid December, until mid March
Replace FECs on EMCAL and DCAL, shift SRUs
Cryo-regeneration TRD Xe (start 9 January)
Switch TPC gas to Ne (March). Replace broken FEC
EYETS planning meeting, 2 Dec A.Tauro

5. EYETS planning meeting, 2 Dec 2016 - A.Tauro
W49-50 (5 Dec to 18 Dec)
W49:
Beam stopped at 6:00 AM  ramp down both magnets (SL)
RP survey: Uli Fuchs between 8:00 and 9:00
ALTEAD: remove shielding (PX24, UX25)
Reinstall crane electronics, remove stabilizers, bring nacelles down
Weld valve on N2 pipe (SG2) on Mon  stop N2 dewar (batteries)
TE-VSC: close manual valve on Mon 9:00
Mon: inspection for cable-trays work (Gianluca Canale + EL)
Confined space training session on Tue , 14:00 – 17:00
TPC (Chilo): remove wood GEM IROC
EN-MME: remove accelerometers cables and instruments (tbc)
Visitor centre: test ventilation control – whole week
Wed 17:30, 2 private visits
Thu 14:40, protocol visit “CH FR Signature tripartite”– passage via PX24
Fri 17:30, 2 private visits
W50:
ALTEAD+P2tech: open L3 doors
Remove L3 and PMD ventilation, lift PMD crocus
Wed 8:00 – 10:00: CR lift maintenance – possible?
UX25 access after working hours (17:30 onwards)
No access CR5 Mon-Tue w49
EYETS planning meeting, 2 Dec A.Tauro

6. EYETS planning meeting, 2 Dec 2016 - A.Tauro
W51-1 (19 Dec to 8 Jan)
EN-HE: PX24 lift replacement
UX25 access via PM25
Rescue mask training required to access PM25 (and UX25) from 19 Dec to 4 Jan
CERN closure: 22 Dec - 4 Jan  no access P2
Daily tours surface and underground
Safety test: 30 Dec  no access UX25
W51:
Mon: request PX24  PM25 switchover (Klaus)
Mon: inspection survey (beampipe, PHOS)
Inspection TOF supports (Yannick)
Wed: restore normal access to CR (no longer from outside)
Lift replacement schedule
EYETS planning meeting, 2 Dec A.Tauro

7. Inspection rounds during CERN closure
As every year a daily inspection will done at P2 during CERN End of Year closure (22.12 – 04.01)
Thanks to all people listed below!
Inspection of SX2 (ARC), CRs, SG and Cavern
Remote monitoring of infrastructure and equipment remains possible (DCS is available)
Contact Andre if there is anything special you want to be checked
Provisional schedule:
Thu 22-Dec Klaus
Fri 23-Dec Klaus
Sat 24-Dec Klaus
Sun 25-Dec Sasha
Mon 26-Dec Sasha
Tue 27-Dec Chilo
Wed 28-Dec Chilo
Thu 29-Dec Arturo
Fri 30-Dec Arturo (safety tests)
Sat 31-Dec Andre
Sun 01-Jan Andre
Mon 02-Jan Arturo
Tue 03-Jan Andre
Wed 04-Jan Andre
EYETS planning meeting, 2 Dec A.Tauro

8. EL, CV and gas activities
Test secours: 9 Jan between 6:00-6:30 AM – see next slide
Test auto-transfer: 4 Feb (10’ interruption on general services)
AUG: Mar 16th – NO ACCESS P2 whole day
Put SLIMOS+DCS console on DCS-UPS after power cut of 18.9 (Andre)
SPIE:
Cable trays for LS2 fibers (lights, SU support to be displaced)
Pull 2 spare cables + connectors for SSD (CR4-UX) (Caterina Deplano)
Pull 2 cables MCR  ARC (Pascal Blanc)
Pull 2 cables CV-DC (Yann Lupkins)
Redo test on TPC HV cables, redo connectors if needed (11 January)
All the requests to pull long cables in the cavern during the EYETS (e.g. from CR4/surface to the cavern) must be submitted before Friday 2nd December, 2016 (today)
Cooling:
P2 cooling maintenance: w Stop towers w11
Detector cooling maintenance: w10-11 – see next slide
EN-CV: install heat exchanger ITS air duct (C-side)
SPIE: re-routing mixed water pipes (racks) side C (Philippe)
Gas:
EP-DT-FS: upgrades to the Gas system WinccOA. 1 day in weeks 5-6
Maintenance gas systems – see excel file
EYETS planning meeting, 2 Dec A.Tauro

9. EYETS planning meeting, 2 Dec 2016 - A.Tauro
EN-EL: test secours
Planned for Monday, 9th Jan, at 6:00 AM (10’)
For P2 this will affect:
all buildings including SX2 and SXL2
all offices, meeting rooms, wall outlets, light, coffee machine
the non UPS part of the ARC
the non UPS part of the detector cooling plants (this will trigger interlocks, e.g. LV)
the gas systems (PLCs stopped, interlocks triggered)  Albin to stop gas systems beforehand
the circulation of iced and mixed water, ventilation (will restart after the 10 min. interruption)
Are NOT affected at P2:
all equipment on UPS (notably all CRs and inside ARC)
all racks in CR and UX
As we do not know if all ventilation will restart OK, we will suspend cavern access until we confirm that all is nominal
EYETS planning meeting, 2 Dec A.Tauro

10. EYETS planning meeting, 2 Dec 2016 - A.Tauro
Detector cooling
RP samples collected on Dec 5th
EYETS planning meeting, 2 Dec A.Tauro

11. EYETS planning meeting, 2 Dec 2016 - A.Tauro
Gas (EN-EA-CT)
Stop Ic4h10 and CH4 on 5th Dec (stop  purge  P test/leak test of lines with N2)
Switch Arcal15Arcal10 on 19th Dec
Note: gas point facing b.2270 will be full of bottles. These bottles will be removed:
1BT N2 (14/03/2014, Marraffa)
2BT Arcal21 (15/03/2012)
2BT Arcal5
1BT N2/CO2/Ne 4.80/9.50/85.7  keep!
1BT Acetylene
EYETS planning meeting, 2 Dec A.Tauro

12. Gas system status during EYETS
Run supply
Backup
Comment
MCH 61 ST1 ON
Ar-CO2
CO2
Switch to N2 on Dec.19th, and back to Ar-CO2 on Jan 9th
Nominal mixture (Ar-CO2) during rest of EYETS 
MCH 61 ST2
MCH 62 ST3-4-5
MTR
OFF
C2H2F4-iC4H10-SF6
Outlet chambers to atmp.
Stop on Dec 5th
PMD
Stop on Dec 5th  
CPV N2
HMPID
CH4
Flushing by Argon
HMPID envelope
N2 manual supply
PHOS
TOF
C2H2F4-SF6
C2H2F4
 Backup
TRD
Xe-CO2
Freeze the Xe in January and put it back around March 
TPC
Fill the TPC with Ne-CO2-N2 in March 
TPC envelope
CO2 Bronkhorst supply
EYETS planning meeting, 2 Dec A.Tauro

13. EYETS planning meeting, 2 Dec 2016 - A.Tauro
Other activities
DSO test: 7 and 8 April  NO access underground
DCS: Netgear ethernet redundancy (Andre)
TE-EPC:
Replace thyristors L3 power converter (planning tbc)
Replace coils of the Thyristor Controlled Reactance (TCR) of LHC Static Var Compensator (w3-4). Acoustic noise test one night in w11 (tbc)
HSE-RP-IL: annual source tests of all RAMSES on Jan 11th
BE-ICS-AC: maintenance PX24 access door. 26 and 27 Jan
BE-ICS-AS:
Maintenance gas and ODH detection in UX25, SG2, SD2 and PX24. Will stop flammable gases for ½ day. 22 and 23 February
Maintenance red phones. 20 Dec
Maintenance rack smoke detection. w6
EN-ACE-SU:
Measure the RB24 beampipe flanges (at least F0-F1). 2 to 5 days in w2 or 3
Survey PHOS
ALTEAD: maintenance CR1-4 drawbridges (January)
UX25 floor painting: I-side w4 and O-side w5 (access via C/4 during I-side painting)
EYETS planning meeting, 2 Dec A.Tauro

14. EYETS planning meeting, 2 Dec 2016 - A.Tauro
Other activities
Fire Brigade Visit and Exercise. 13 and 17 Mar
EYETS planning meeting, 2 Dec A.Tauro

15. Access & services status Red = no access, Orange = access restrictions
AUG LHC1, access after 12:00
Cavern closing
Cavern opening
DSO
Test auto transfer
Cooling plants maintenance
w10-11
Test secours
Acoustic noise measurement (date tbc)
S12 warm-up, access with self-breathing mask training
CV maintenance w
(no cooling at all in w11)
AUG
Safety test
EYETS planning meeting, 2 Dec A.Tauro

16. EYETS planning meeting, 2 Dec 2016 - A.Tauro
DAQ, DCS
DAQ:
Shutdown of CR1/ARC (excepted the DCS stations) on the last working week (Tue20-Wed 21 Dec 2016)
Logbook will move to CERN 1 and remain available all the time (with some small pauses around the two moves)
Restart of CR1/ARC on Mon 9/Tue 10 Jan 2017
DCS:
Short term
Monday 5-December 09:00: backup of all WinCC projects
Reference ‘snapshot’ of the systems at end of 2016 run
Expected down time ~ 2hrs
DCS available uninterrupted until end January
Usual support during working hours
‘Best effort’ outside working hours and during CERN closure
Further activities
Install new fileservers
End January (~1 day)
Upgrade WinCC (v 3.15), Windows/Linux patches, etc.
Date to be decided (not before end January), ~2 days
DCS shutdown for emergency stop test (16 March)
EYETS planning meeting, 2 Dec A.Tauro

17. EYETS planning meeting, 2 Dec 2016 - A.Tauro
Underground visits
From 5 Dec to 18 Dec (2 weeks)
After working hours (17:30 onwards)
From 19 Dec to 24 Feb (10 weeks)
NO visits (lift replacement)
From 25 Feb to 2 April (5 weeks)
Private visits allowed
From 3 Apr to 13 April (2 weeks)
From 14 Apr to 27 April (2 weeks)
EYETS planning meeting, 2 Dec A.Tauro

18. EYETS planning meeting, 2 Dec 2016 - A.Tauro
Backup
EYETS planning meeting, 2 Dec A.Tauro

19. Opening/closing L3 doors
Usual access restrictions during opening/closing
Closing
Opening
Maintenance UX25 crane: 4 to 6 Jan
EYETS planning meeting, 2 Dec A.Tauro

20. EYETS planning meeting, 2 Dec 2016 - A.Tauro
PX24 lift replacement
10 weeks, from 19 Dec to 24 Feb
ALICE personnel via PM25 (transparent)
From 12 Dec to 4 Jan: S12 warm-up between K (risk of helium spill)  access only for those with rescue mask training
S12 cool-down (300-80K) w8-9-10
EYETS planning meeting, 2 Dec A.Tauro

21. EYETS planning meeting, 2 Dec 2016 - A.Tauro
UX25 floor painting
Resin
Access via C/4 during I-side painting
O-side
O-side
I-side
I-side
Cavern entrance
EYETS planning meeting, 2 Dec A.Tauro

22. Replacement L3 converter thyristors (TE-EPC)
36 thyristors in operation, dating from LEP times
Many of them have ‘bad contact’ L3 magnet tripped several times over the last months
Replacement of all thyristors foreseen in EYETS:
Finding compatible thyristors on the market (obsolete reference)
Purchasing them (approximate budget: 50kCHF)
Upgrading firing electronics for compatibility with new thyristors
Bridge output voltage measurement
Thryistor bridge
1x thyristor pulse missing [3.3ms]

23. LHC Point 2 SVC : installation of new TCR coils (1)
EYETS planning meeting, 2 Dec A.Tauro
Purpose
Reduce the acoustic noise by exchanging the coils of the Thyristor Controlled Reactance (TCR) of LHC Static Var Compensator in Point 2 by new special low-noise coils
Requested by CERN Top Management
2275
2260
2265
LHC POINT2
TCR Coils

24. LHC Point 2 SVC : installation of new TCR coils (2)
EYETS planning meeting, 2 Dec A.Tauro
Schedule proposed
Switch-off: (date to be checked concerning Alice and TI2)
W49-W : Dismantling of the coils
W3-W : Installation of the new coils
W5-W : Tests and commissioning (adaptation of the control system, first energization and powering tests) 
W7 2017: Acoustic noise measurements (one night)  new date: W10 (8-9/3)
Switch-on: probably in W7, and latest before 28 Febr. 2017
Safety
Delimited worksite area without any coactivity (VIC already done)
Consequences
AC network quality deviation during this period (no more reactive power and harmonics compensation)
Impacted systems: No powering test possible for ALICE experiment and TI2