Download SU-AC_EYETS-2016-2017_LHC-ACTIVITIES

LHC
SU-AC ACTIVITIES during EYETS 2016-2017
Jean-Frederic FUCHS & Dominique MISSIAEN
Terminology
• R : Roll angle (transversal inclination also called «tilt») of magnet
• V : Vertical survey
• H : perpendicular/tranversal to the beam direction
27/09/2016
EYETS 2016-2017
2
Terminology
• R : roll angle (transversal inclination) of magnet
Roll angle
T
VT
27/09/2016
EYETS 2016-2017
S
VS
3
Terminology
• V means vertical survey
27/09/2016
EYETS 2016-2017
4
Terminology
• H means perpendicular/tranversal to the beam direction
Duct will be used against air current
27/09/2016
EYETS 2016-2017
5
Preliminaries
• SU work concerns essentially preventive maintenance/operation of
alignment proposed either by :
• SU when instabilities are well known,
• LHC Civil engineering works : LSS1/LSS5,
LSS6-R (dump), LSS2/LSS8 (Ti2/Ti8), …..
• LEP and LS1 feedback : S78, S81, S34, S23
• By OP or ABP for machine improvement.
27/09/2016
EYETS 2016-2017
6
Sector 78 (LSS + ARC) [ Roll + Vertical ]
1.
Roll angle measurements and corrections LSS+ ARC [ 3 days ]
2.
Vertical measurements LSS+ ARC [ ~ 8 days ] – Need LSS7 access
3.
~ 1 day for computing
4.
Vertical smoothing [ ~ 10 days ] (to be confirmed)
When : to be defined following RP restrictions for LSS7 (March, April) –
High priority
Constraints : LSS+ARC, need to access to LSS7-R, minimum co-activity,
magnets must be cold (< 100 K), need to decrease the ventilation speed
27/09/2016
EYETS 2016-2017
7
Sector 81 (LSS + ARC) [ R + V + H ]
1.
2.
3.
4.
5.
Roll angle measurements and corrections LSS+ ARC [ 3 days ]
Vertical measurements LSS + ARC [ ~ 8 days ]
Radial measurements from Q8 to Q8 [ ~ 8 days ]
~ 2 days for computing
Vertical and radial smoothing [ ~ 10 / 15 days ] (to be confirmed)
When : February/March 2017 (?)
Constraints : LSS+ARC, minimum co-activity, magnets must be cold (<
100 K), need to decrease the ventilation speed, duct
27/09/2016
EYETS 2016-2017
8
LSS6 – Q10R6 Area (LSS + ARC)
From Q5 to Q12 :
• Roll angle measurements and corrections [1 day]
• Vertical measurements [1.5 day]
• Radial measurements [1.5 day]
• ~ 1 day for computing
• Tomography before alignment ?
• Vertical and radial smoothing [~ 5 days]
• Tomography after alignment ?
When : February/March ?
Constraints : minimum co-activity, magnets must be cold (< 100 K), need
to decrease the ventilation speed, no duct, Tomography needed (before /
after) if displacement > 1 mm (JP Tock)
27/09/2016
EYETS 2016-2017
9
LowBeta (TS3 ?)
LSS1, LSS2, LSS5 and LSS8
• Levelling between SU network (GITL) and lowbeta [0.5 d x 4]
• Foreseen to be done during TS3 (Nominal conditions of the lowbeta
magnets) ….
When : As soon as possible : December 2016 ? January 2017 ?
Constraints : Need to access on L et R side on the same half day, need to
access to Q3 triplets (10 min) under vacuum condition and with helium.
27/09/2016
EYETS 2016-2017
10
LSS1/LSS5 : LowBeta -> Q6
LSS1 and LSS5 :
• Lowbeta (Q1, Q2, Q3) + MBXW (D1) + MBRC (D2) + MQ (Q5 and Q6) + survey
network (GGPSO, GITL)
• ~ 2 weeks for initial measurements (per LSS)
• Few days for computing
• ~ 2 weeks for alignment (per LSS)
When : January 2017 – High Priority
Constraints : no coactivity during radial measurements (wire / AT40x), no helium
in triplets
27/09/2016
EYETS 2016-2017
11
And …..
• Levelling without ventilation in S78 : 1 week (March / April)
• No ventilation at all and no co-activity (access conditions under discussion)
• Magnets must be cold (< 100 K),
• No need to go inside LSS7, SU can work after 17h30
• High priority
• Measurement with new instrument (LS15) in S78 : 1 week (March / April)
• Magnets must be cold (< 100 K)
• No need to go inside LSS7
• Measurement with the train LSS7 (April)
• No-coactivity (safety),
• LSS7, 1 week
27/09/2016
EYETS 2016-2017
12
Mobile Scanning
Leica Pegasus Backpack
• Inertial Measurement,
• 5 x cameras (360° pictures),
• 2 x LiDAR,
• …..
When : 15&16 December 2016
Where : LSS : to be defined following LHC constraints, no co-activity
(scan)
27/09/2016
EYETS 2016-2017
13
LHC Work requested by others (?)
• SU will be requested for :
• A31L2 after exchange (?) : 0.5 d
• Alignment of 6 collimators (LSS5, LSS7) : 0.5 d / component
• Vacuum chamber/collimator measurements (LSS5) : 1 d for each ½ LSS
• Alignment of 2 Roman Pots (LSS1) : 0.5 d
• Alignment of BSRTR (LSS4) : 0.5 d
• Alignment of MKI2D (LSS2) : 0.5 d
• 3D Scans (JP Corso)
• More ????
The CERN BD Layout must be updated
before any alignment
No Update = No Alignment !
Please contact us for any new request : D. Missiaen / J.F. Fuchs
27/09/2016
EYETS 2016-2017
14
EYETS 2016-2017
• Other SU activities during EYETS : injectors (SPS, PS,
Booster, …), LHC experiments and non- LHC experiments,
3D scan, metrology and fiducialisation, …..
• Most of the field work is done by a Manpower contract under
the supervision of CERN staff
• Activities / planning /workload : 15/11/2016
• Preparation, supervision, coordination, data post processing
and quality checks are done by CERN staff
EYETS 2016-2017
27/09/201615
SU Contacts
• EN/ACE-SU : “Large Scale Metrology”
• Section Leader : D. Missiaen
• LHC Coordinator : J.F. Fuchs
• http://www.cern.ch/SU
27/09/2016
EYETS 2016-2017
16
Questions ?
27/09/2016
EYETS 2016-2017
17
27/09/2016
EYETS 2016-2017
18
LS1 Feedback
27/09/2016
EYETS 2016-2017
19
Sector 23 (ARC) [ R + H ]
1.
Roll angle measurements and corrections LSS+ ARC [ 3 days ]
2.
Radial measurements from Q8 to Q8 [ ~ 8 days ]
3.
1 day for computing
4.
Radial smoothing [ ~ 10 days ] (to be confirmed)
When : February/March 2017 (?)
Constraints : minimum co-activity, magnets must be cold (< 100 K), need
to decrease the ventilation speed, duck
27/09/2016
EYETS 2016-2017
20
Sector 23 (LSS + ARC) [ R + V + H ]
1.
2.
3.
4.
5.
Roll angle measurements and corrections LSS+ ARC [ 3 days ]
Vertical measurements LSS + ARC [ ~ 8 days ]
Radial measurements from Q8 to Q8 [ ~ 8 days ]
1 day for computing
Vertical and radial smoothing [ ~ 15 days ] (to be confirmed)
When : February/March 2017 (?)
Constraints : LSS+ARC, minimum co-activity, magnets must be cold (<
100 K), need to decrease the ventilation speed, duck
27/09/2016
EYETS 2016-2017
21