LTC%20Dec%2014th%2005%20:%20LHC%20commissioning%20organisation

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LTC Dec 14th 05 LHC commissioning organisation
R.Bailey
M.Lamont
O.Bruning
P.Collier
G.Arduini
R.Assmann
M.Giovannozzi
S.Fartoukh
J.Uythoven
J.Wenninger
F.Zimmermann
A.Butterworth
Accelerator system






Accelerator system






Accelerator system






Accelerator system






S.Redaelli 01.06
M.Gruwe 01.06
EIC3 07.06
EIC4 07.06
EIC5 01.07
EIC6 01.07
EIC7 01.07
Accelerator system
Activity 1
Activity 2



Activity n
M.Albert
G.Crockford
R.Giachino
G.H.Hemelsoet
D.Jacquet
L.Normann
F.Pirotte
R.Suykerbuyk
E.Veyrunes
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Accelerator systems Contact
Technical Services TI operations P.Sollander
Technical Services Controls H.Schmickler
Technical Services Electrical supply J.Pedersen
Technical Services Cooling and ventilation J.Inigo-Golfin
Technical Services Access safety systems T.Pettersson
Hardware Commissioning Cryogenics L.Serio
Hardware Commissioning Cold magnets L.Rossi
Hardware Commissioning Warm magnets K.H.Mess
Hardware Commissioning PIC B.Puccio
Hardware Commissioning QPS K.H.Mess
Hardware Commissioning Power converters F.Bordry
Beam Commissioning Beam vacuum N.Hilleret OK
Beam Commissioning Magnetic model L.Bottura
Beam Commissioning Beam Machine Protection Systems R.Schmidt
Beam Commissioning Radiation Protection D.Forkel-Wirth
Beam Commissioning Radiation Monitoring T.Wijnands
Beam Commissioning Beam Transfer V.Mertens OK
Beam Commissioning RF T.Linnecar OK
Beam Commissioning Beam Instrumentation R.Jones OK
Beam Commissioning Collimation R.Assmann
Beam Commissioning High level controls M.Lamont
Beam Commissioning Operational phases R.Bailey
Beam Commissioning Accelerator physics O.Bruning OK
Beam Commissioning Experimental Conditions H.Burkhardt
Take As Given
Develop These
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Beam Instrumentation R.Garoby, R.Jones Beam Instrumentation R.Garoby, R.Jones Beam Instrumentation R.Garoby, R.Jones Beam Instrumentation R.Garoby, R.Jones
Activity Responsible Other CERN LARP
Screens E.Bravin A.Guerrero H.Burkhardt (AP) G.Arduini (AP)
BCT P.Odier D.Belohrad M.Ludwig H.Burkhardt (AP) J.Jowett (AP)
BPM and orbit R.Jones L.Jensen J.Wenninger (OP) W.Herr (AP) I.Papaphilippou (AP)
BLM B.Dehning E.Holzer S.Jackson R.Assmann (AP) H.Burkhardt (AP) B.Jeanneret (AP) S.Gilardoni (AP)
PLL for Q, Q, C R.Jones M.Gasior P.Karlsson S.Fartoukh (AP) O.Berrig (AP) J.Wenninger (OP) X
Profile monitors S.Hutchins J.Koopman A.Guerrero H.Burkhardt (AP) S.Gilardoni (AP) M.Giovannozzi (AP) X
Schottky monitors F.Caspers (RF) R.Jones S.Bart-Pedersen E.Metral (AP) C.Carli (AP) F.Zimmermann (AP) X
Luminosity monitors E.Bravin S.Bart-Pedersen R.Assmann (AP) F.Zimmermann (AP) X
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Vacuum P.Strubin, N.Hilleret Vacuum P.Strubin, N.Hilleret Vacuum P.Strubin, N.Hilleret Vacuum P.Strubin, N.Hilleret
Activity Responsible Other CERN LARP
Insulating vacuum Beam vacuum (ring) Beam vacuum (experiments) Electron cloud V.Baglin P.Cruikshank M.Jimenez E.Mahner C.Rathjen A.Rossi G.Arduini (AP) F.Zimmermann (AP) X
Beam Transfer V.Mertens Beam Transfer V.Mertens Beam Transfer V.Mertens Beam Transfer V.Mertens
Activity Responsible Other CERN LARP
SPS extraction Transfer lines Injection region First turn Protection devices Beam dump J.Uythoven B.Goddard V.Kain (OP) M.Lamont (OP) J.Wenninger (OP) T.Risselada (AP) H.Burkhardt (AP) W.Herr (AP) X
MKQA J.Uythoven S.Fartoukh (AP) F.Schmidt (AP) X
RF T.Linnecar, E.Chapochnikova RF T.Linnecar, E.Chapochnikova RF T.Linnecar, E.Chapochnikova RF T.Linnecar, E.Chapochnikova
Activity Responsible Other CERN LARP
Machine synchronisation Capture 450GeV plateau Acceleration Storage Transverse damping P.Baudrenghien T.Bohl O.Brunner A.Butterworth E.Ciapala W.Hofle J.Tuckmantel
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Accelerator physics O.Bruning Accelerator physics O.Bruning Accelerator physics O.Bruning Accelerator physics O.Bruning
Activity Responsible Other CERN LARP
Optics O.Bruning, S.Fartoukh M.Giovannozi, W.Herr T.Risselada Y.Papaphilippou X
Aperture B.Jeanneret, W.Herr F.Schmidt, F.Zimmermann Y.Papaphilippou X
Impedence F.Ruggiero E.Metral, F.Zimmermann
Lattice correctors S.Fartoukh, F.Schmidt Y.Papaphilippou X
Triplet correctors S.Fartoukh, F.Schmidt X
Lifetimes J.Jowett, F.Zimmermann X
Separation / Crossing W.Herr, F.Zimmermann Y.Papaphilippou
Collisions W.Herr, R.Assmann
Luminosity W.Herr, R.Assmann X
Ions J.Jowett, C.Carli S.Maury, S.Gilardoni H.Braun
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LTC Dec 14th 05 LHC commissioning program

• Where are we ?
• Overall strategy OK
• Stage I 43 bunches
• Stage II 75ns
• Stage III 25ns low I
• Stage IV 25ns high I
• Stage I looked at
• Some details behind
• Need to make this into a detailed commissioning
  plan
• Best developed by the people who will implement
  it
• Machine coordinators/Commissioners/EICs
  Accelerator Systems
• Work through 2006 (suggest 20 activity)

1 Injection and First turn
2 Circulating beam, RF capture
3 450 GeV initial commissioning
4 450 GeV detailed measurements
5 450 GeV 2 beams
6 Nominal cycle
7 Snapback single beam
8 Ramp single beam
9 Single beam at physics energy
10 Two beams to physics energy
11 Physics
12 Commission squeeze
13 Physics partially squeezed
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LHC Commissioning Working Group

• R.Bailey (Chairman)
• M.Lamont (Deputy Chairman)
• F.Zimmermann (Secretary)
• G.Arduini
• R.Assmann
• O.Brüning
• H.Burkhardt
• A.Butterworth
• P.Collier
• S.Fartoukh
• M.Giovannozzi
• B.Goddard
• M.Gruwe
• R.Jones
• V.Kain
• J.P.Koutchouk
• S.Redaelli
• R.Saban

• After discussion with Steve Myers in March
• Re-launch LHCOP as the LHCCWG
• Its a WG so keep it workable
• Develop detailed commissioning plan
• Phase by phase
• Do for 43 on 43 with 4 1010 per bunch
• Leave 75ns and 25ns aspects for later
• Web based doc to start with
• Document later
• Report to LTC

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Development of detailed commissioning plan
BDI Beam Transfer Machine protection Collimation RF etc WHO
1 Injection and First turn Sector test team
2 Circulating beam, RF capture GA, AB
3 450 GeV initial commissioning JW, FZ
4 450 GeV detailed measurements FZ, MG, SF
5 450 GeV 2 beams RA, JU
6 Nominal cycle
7 Snapback single beam
8 Ramp single beam
9 Single beam at physics energy
10 Two beams to physics energy
11 Physics
12 Commission squeeze
13 Physics partially squeezed
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1
2
3
0 review in March
1 review in March / April
2 review in May / June
3 review in July / August
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LHCCWG in 2006

• For each phase
• Well defined start
• Well defined end
• How to get from 1 to 2
• For each activity
• What needs to be done
• How do we do it
• What tools do we need
• Web-based documentation to capture everything
• Release document(s) in about a year

1 Injection and First turn
2 Circulating beam, RF capture
3 450 GeV initial commissioning
4 450 GeV detailed measurements
5 450 GeV 2 beams
6 Nominal cycle
7 Snapback single beam
8 Ramp single beam
9 Single beam at physics energy
10 Two beams to physics energy
11 Physics
12 Commission squeeze
13 Physics partially squeezed
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LHC project targets for 2006

• Complete full installation and tests of QRL
• Complete the cold tests of the 1232 dipoles
• Full commissioning of sector 7-8
• Cool down of sector 8-1
• If we can meet these last two objectives
• Target potential bottlenecks
• Optimise magnet transport logistics still further
• Magnet interconnections
• Electrical feedboxes
• Revised schedule in May/June based on experience
  accrued

Sector test with beam
HWC 7-8
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Sector test with beam
3.3 km of the LHC including one experiment
insertion and a full arc

• layout

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Sector test with beam - motivation

• Full test of a majority of subsystems
• Over one eighth of the ring
• Allows staged approach to the full problem space
• Time to fully resolve problems before the real
  thing
• Analysis, improvements, resolution, adjustment
• Eventual commissioning of the full machine would
  be more difficult without the experience gained

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Tests with beam
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Staged commissioning plan for protons
Stage I
II
III
IV
Hardware commissioning Machine checkout Beam commissioning 43 bunch operation 75ns ops 25ns ops I Install Phase II and MKB 25ns ops II
No beam
Beam

• Pilot physics run
• First collisions
• 43 bunches, no crossing angle, no squeeze,
  moderate intensities
• Push performance (156 bunches, partial squeeze in
  1 and 5, push intensity)
• Performance limit 1032 cm-2 s-1 (event pileup)
• 75ns operation
• Establish multi-bunch operation, moderate
  intensities
• Relaxed machine parameters (squeeze and crossing
  angle)
• Push squeeze and crossing angle
• Performance limit 1033 cm-2 s-1 (event pileup)
• 25ns operation I
• Nominal crossing angle
• Push squeeze
• Increase intensity to 50 nominal
• Performance limit 2 1033 cm-2 s-1
• 25ns operation II
• Push towards nominal performance

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Stage I physics run

• Start as simple as possible
• Change 1 parameter (kb N ?1 , 5) at a time
• All values for
• nominal emittance
• 7TeV
• 10m ? in point 2 (luminosity looks fine)

Protons/beam ? 1013 (LEP beam currents)
Stored energy/beam ? 10MJ (SPS fixed target beam)
Parameters Parameters Parameters Beam levels Beam levels Rates in 1 and 5 Rates in 1 and 5 Rates in 2 Rates in 2
kb N ? 1,5 (m) Ibeam proton Ebeam (MJ) Luminosity (cm-2s-1) Events/ crossing Luminosity (cm-2s-1) Events/ crossing
1 1010 18 1 1010 10-2 1027 ltlt 1 1.8 1027 ltlt 1
43 1010 18 4.3 1011 0.5 4.2 1028 ltlt 1 7.7 1028 ltlt 1
43 4 1010 18 1.7 1012 2 6.8 1029 ltlt 1 1.2 1030 0.15
43 4 1010 2 1.7 1012 2 6.1 1030 0.76 1.2 1030 0.15
156 4 1010 2 6.2 1012 7 2.2 1031 0.76 4.4 1030 0.15
156 9 1010 2 1.4 1013 16 1.1 1032 3.9 2.2 1031 0.77
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LHCb during Stage I

• Displace bunches in one ring (n on m)
• 4 per SPS cycle in 43 bunch, 16 per SPS cycle in
  156 bunch mode
• Dedicated runs for LHCb (n on n) ?
• Squeeze in point 8 (2m limit for bad LHC dipole
  polarity)
• All values for
• nominal emittance
• 7TeV

Parameters Parameters Parameters Rates in 8 Rates in 8
kb N ? 1,5 (m) Luminosity (cm-2s-1) Events/ crossing
1 on 1 1010 10 1.8 1027 ltlt 1
4 on 43 1010 10 7 1027 ltlt 1
4 on 43 4 1010 10 1.1 1029 0.15
4 on 43 4 1010 2 5.7 1029 0.76
16 on 156 4 1010 2 2.3 1030 0.76
156 on 156 4 1010 2 2.2 1031 0.76
156 on 156 9 1010 2 1.1 1032 3.9
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Stage II physics run

• Relaxed crossing angle (250 ?rad)
• Start un-squeezed
• Then go to where we were in stage I
• All values for
• nominal emittance
• 7TeV
• 10m ? in points 2 and 8

Protons/beam few 1013
Stored energy/beam 100MJ
Parameters Parameters Parameters Beam levels Beam levels Rates in 1 and 5 Rates in 1 and 5 Rates in 2 and 8 Rates in 2 and 8
kb N ? 1,5 (m) Ibeam proton Ebeam (MJ) Luminosity (cm-2s-1) Events/ crossing Luminosity (cm-2s-1) Events/ crossing
936 4 1010 18 3.7 1013 42 1.5 1031 ltlt 1 2.6 1031 0.15
936 4 1010 2 3.7 1013 42 1.3 1032 0.73 2.6 1031 0.15
936 6 1010 2 5.6 1013 63 2.9 1032 1.6 6.0 1031 0.34
936 9 1010 1 8.4 1013 94 1.2 1033 7 1.3 1032 0.76
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Stage III physics run

• Nominal crossing angle (285 ?rad)
• Start un-squeezed
• Then go to where we were in stage II
• All values for
• nominal emittance
• 7TeV
• 10m ? in points 2 and 8

Protons/beam 1014
Stored energy/beam 100MJ
Parameters Parameters Parameters Beam levels Beam levels Rates in 1 and 5 Rates in 1 and 5 Rates in 2 and 8 Rates in 2 and 8
kb N ? 1,5 (m) Ibeam proton Ebeam (MJ) Luminosity (cm-2s-1) Events/ crossing Luminosity (cm-2s-1) Events/ crossing
2808 4 1010 18 1.1 1014 126 4.4 1031 ltlt 1 7.9 1031 0.15
2808 4 1010 2 1.1 1014 126 3.8 1032 0.72 7.9 1031 0.15
2808 5 1010 2 1.4 1014 157 5.9 1032 1.1 1.2 1032 0.24
2808 5 1010 1 1.4 1014 157 1.1 1033 2.1 1.2 1032 0.24
2808 5 1010 0.55 1.4 1014 157 1.9 1033 3.6 1.2 1032 0.24
Nominal Nominal Nominal 3.2 1014 362 1034 19 6.5 1032 1.2