lhc status and start-up
DESCRIPTION
LHC Status and Start-Up. Steve Myers (Accelerators and Beams Department). Machine is closed (Aug 07) Hardware commissioning needed for 450GeV plus maximum possible for 7TeV Nov/Dec 2007: Beam operation with collisions at 450 GeV - PowerPoint PPT PresentationTRANSCRIPT
LHC Status and Start-Up
Steve Myers
(Accelerators and Beams Department)
S. Myers LEMIC 24th October 2006 2
LHC Commissioning SequenceMachine is closed (Aug 07)
Hardware commissioning needed for 450GeV plus maximum possible for 7TeV
Nov/Dec 2007: Beam operation with collisions at 450 GeV
Shutdown: Finish hardware commissioning and installation of some delayed
equipment for 7 TeV (e.g. some collimators).
LHC commissioning for 7 TeV physics.
LHC Operation
S. Myers LEMIC 24th October 2006 3
QRLQRL finished well before end of 2006finished well before end of 2006
Last magnetsLast magnets through SM18 before end of 2006through SM18 before end of 2006 Activity continues in 2007 for sparesActivity continues in 2007 for spares
Sector 7Sector 7--8 cold8 cold before end of 2006before end of 2006 TI8 beam tests in 2006 cancelledTI8 beam tests in 2006 cancelled
Last magnetLast magnet lowered March 2007lowered March 2007
VacuumVacuum closed August 2007closed August 2007
Engineering runEngineering run in 2007in 2007
Targets
S. Myers LEMIC 24th October 2006 4
Preparation for Physics (baseline in parenthesis)
• Cabling• Tracing and aligning• Cryoline (QRL)• Magnet Transport (24/week 18MB + 6 SSS)
• Cryo instruments, QP controls, Vac controls• Magnet Interconnections (24/week 2 sectors in parallel)
• Global leak Test (2 weeks)
• Closure and consolidation (6 weeks)
• Cool down (8 weeks)
• Powering tests (10-13 weeks)
• Global Cold Check-out (4 weeks)
• Beam Commissioning (13 weeks)
• Physics!!! (forever)
Installation
Hardware Commissioning by sector
Beam Commissioning
March 2007
2007
S. Myers LEMIC 24th October 2006 5
Topics
1. Procurement, Installationand Hardware Commissioning
2. 450 GeV Run
3. Hardware Commissioning in 2008
4. Physics at 7 TeV in 2008
S. Myers LEMIC 24th October 2006 6
S. Myers LEMIC 24th October 2006 7
First Arc Electric Feedbox (DFB) in the tunnel
S. Myers LEMIC 24th October 2006 8
1000th Dipole Installed (sep 5)
S. Myers LEMIC 24th October 2006 9
S. Myers LEMIC 24th October 2006 10
S. Myers LEMIC 24th October 2006 11
S. Myers LEMIC 24th October 2006 12
Cryomagnets interconnect in the tunnel
S. Myers LEMIC 24th October 2006 13
Electrical quality control in the tunnel
S. Myers LEMIC 24th October 2006 14
Summary Status of Installation
– QRL: 7 Sectors ready – pressure test of sector 1-2 scheduled on October 28th
– Magnet transport: 804 MB, 233 Arc SSS and 54 S4 in place today (planning: 791 MB, 234 Arc SSS and 56 S4 end of August)
on track to get all magnets in place by March 2007
– Interconnection: 3 cold sub-sectors completed in 7-8, nominal rate consolidated
expect sector 7-8 closed by mid-November
– 2006 objective: cool-down Sector 7-8 by the end of the year
S. Myers LEMIC 24th October 2006 15
Installation of First Cavity (Aug 23 2006)
Acceleration System
S. Myers LEMIC 24th October 2006 16
Photo 0903
Tunnel installation
• All main RF equipment now installed in the tunnel at point 4 having been fully tested and vacuum conditioned on the surface
- 400 MHz accelerating cavities - 16 cavities in 4 modules, 2 per beam.
- Transverse damping kickers - 16 electrostatic deflectors, 8 per beam - Longitudinal monitors – 6 wideband coaxial line monitors
• Alignment is in progress, beam tube vacuum connections in one month.
• Cryogenic, cable and waveguide connections still to come.
• Power amplifiers for dampers (installed under kickers) for early 2007.
On target for 450 GeV run
S. Myers LEMIC 24th October 2006 17
RF Infrastructure • Waveguide platform installed• High voltage bunkers in place• Faraday cages for sensitive electronics in place and equipped.• Control racks in place• Water and electric systems to be completed
On target for 450 GeV run
S. Myers LEMIC 24th October 2006 18
MKI (injection kickers): all 4 series magnets in LSS8R installed; bake-out/commissioning now starting; generator installation practically completed; magnets for LSS2L to be completed and installed; including generators; early 2007.
MKD (extraction kickers): all 30 series magnets + spares built and tested; installation of supports ongoing; soon followed by installation of the ceramic vacuum chambers; all generators built and installation ongoing; commissioning starting in December 2006.
MKB (dliution kickers): all 4 tanks (comprising in total 4 MKBH + 4 MKBV magnets) of first batch built and tested; first 2 to be installed now; all generators built and being tested; staged equipment under construction.
MKQA (A and aperture measurement kickers): prototype generator built and tested; series generators now being built; series magnets construction to be launched soon.
TCDS/Q (extraction septum/Q4 protection devices): all 8 series tanks installed in LSS6L and R; TCDQM (masks downstream of TCDQ): support structures delivered, to be installed by end October; components for marks to be delivered by end of October, followed by assembly; installation by end of the year.
LBDS (coordination overall beam dumping system): both beam dumps installed, including ventilation system and most of the shielding, both dump vacuum lines being installed; for MKD, MKB, TCDS/Q/M pls. see above, MSD installation towards the end to ease access onto and across the bridge in IP6.
LTI (coordination transfer lines and injections): TI 8 installation completed, line tested up to last 120 m, to be re-commissioned with beam in summer 2007, installation of LSS8R injection system nearly completed, TI 2 upstream installed and commissioned up to near PMI2, TI 2 downstream to be installed during April - August 2007, beam tests in October 2007.
S. Myers LEMIC 24th October 2006 19
TCDQ
TCDS/Q (extraction septum/Q4 protection devices): all 8 series tanks installed in LSS6L and R; TCDQM (masks downstream of TCDQ): support structures delivered, to be installed by end October; components for marks to be delivered by end of October, followed by assembly; installation by end of the year.
S. Myers LEMIC 24th October 2006 20
TCDS
TCDS/Q (extraction septum/Q4 protection devices): all 8 series tanks installed in LSS6L and R; TCDQM (masks downstream of TCDQ): support structures delivered, to be installed by end October; components for marks to be delivered by end of October, followed by assembly; installation by end of the year.
S. Myers LEMIC 24th October 2006 21
MKI (injection kickers): all 4 series magnets in LSS8R installed; bake-out/commissioning now
starting; generator installation practically completed; magnets for LSS2L to be completed and installed;
including generators; early 2007.
S. Myers LEMIC 24th October 2006 22
Controls Status• The installation work in the tunnel proceeds along the schedule without
major concerns.
• For the interface between the experiments and the control system. This concerns the BIC system and the timing system (GMT and BST). We can say that all required interfaces are currently discussed and soon finalized in the scope of the LEADE meetings.
• The CCC controls infrastructure is installed and ready for the LHC operation (Application servers, File servers, consoles, big screens on the wall, video distribution, ...).
• Hardware Commissioning , i.e. Cool down of a complete sector, is the next upcoming milestone. Installations are ready and most control software is ready for testing.
• The LSA project is well underway. Work agreements AB-CO--- AB-OP have been found. We are facing a permanent scope creep with the addition of extra high priority work (Machine critical settings, complex sequencing, role based access for controls security), which in turn will lower the effort on other applications. The situation has not changed significantly from the past, despite all corrective measures we will be very short, but we will make it.
S. Myers LEMIC 24th October 2006 23
Power Converters InstallationRR13/UJ13: completeRR17/UJ17: starting, (0/62)UA23: not installed (0/81 )UA27: complete UJ33: not installed (0/80 )UA43: completeUA47: completeRR53: completeRR57: completeUSC55: completeUA63: completeUA67: completeRR73: complete RR77: completeUA83/UJ83: completeUA87/UJ87: complete
Completion of installation before the end of 2006
745 / 968 are installed
Orbit correctors converters (752; +-60A,+-8V) will installed under the dipole magnets at the last
moment.
S. Myers LEMIC 24th October 2006 24
Short Circuit Test :Pt 1: 50% (1L complete, RR13 {47}, UJ14 {15}, 62/124 tested)Pt 2: 0%, 0/162 tested Pt 3: 0%, 0/80 testedPt 4: 97% (complete except for wigglers, 110/114 converters tested)Pt 5: 50% {5L complete, RR53 {47}, USC55 {15}, 62/124 tested)Pt 6: 0%, 0/96 testedPt 7: 33% (7R complete, RR77 {34}, 34/)Pt 8: 100%, 162/162 tested Experiments and surface building converters not included above. Next Short Circuits Tests: Oct 2006 : UA63, UJ63 (Pt 6L) {42, 6}Nov 2006 : RR57, UJ56 (Pt 5R) {47, 15}
Total ready for Hardware commissioning :
430 / 960 not including closed orbit converters
Power Converter Testing
S. Myers LEMIC 24th October 2006 25
LHC Power Converters
Number of Converters: 1720Total Current :1860 kA
Underground volume 1700 m3
SR volume 300 m3
Number of Converters: 1720Total Current :1860 kA
Underground volume 1700 m3
SR volume 300 m3
S. Myers LEMIC 24th October 2006 26
Power Converter Tolerances for LHCPower Converter Tolerances for LHC
Precision Control
Circuit Nominal Current One Year One day 1/2 hour ResolutionType Current Polarity Accuracy Reproducibility Stability
(A) (ppm of Inominal) (ppm of Inominal) (ppm of Inominal) (ppm of Inominal)
Main Bends, Main Quads13000
Unipolar ± 50 ± 20 with calibration
± 10 ± 3 1
Inner triplet 8000/ 6000
Unipolar ± 100 ± 20 with calibration?
± 20 ± 10 15
Dispersion suppressor6000
Unipolar ± 70 ± 10 ± 5 15
Insertion quadrupoles6000
Unipolar ± 70 ± 10 ± 5 15
Separators (D1,D2,D3,D4)6000
Unipolar ± 70 ± 10 ± 5 15
Trim quadrupoles600
Bipolar ± 200 ± 50 ± 10 30
SSS correctors600
Bipolar ± 200 ± 50 ± 10 30
Spool pieces600
Bipolar ± 200 ± 50 ± 10 30
Orbit correctors 120/60 Bipolar ± 1000 ± 100 ± 50 30
S. Myers LEMIC 24th October 2006 27
Main dipole converter for sector 7-8
S. Myers LEMIC 24th October 2006 28
Beam Instrumentation (BI)
S. Myers LEMIC 24th October 2006 29
BI: High Multiplicity Instruments
BLM
BPM
Device
85 built
Production started
50 CFC + 180 Acq. built
Production started
1120 built
(800 fully tested)
Full production rate
200 built
(pre-series)
Production started
~ 650 cold
~ 100 warm
Small delay with some warm PUs
Status of construction
Will be on-time~ 2000DAB card (VME)
Network infrastructure OK
Will be on-time
~ 750 CFC
~ 400 Acq.
Electronics (CFC and Acq.)
On-time
Beginning
~ 3800Ionization chambers
Network infrastructure OK Will be on-time
~ 4500 eachElectronics
(WBTN and Integrator)
Localized delays
Will be ~ on-time
~ 850 cold
~ 200 warm
Pick Ups
Status of installationMultiplicityComponent
BLM
BPM
Device
85 built
Production started
50 CFC + 180 Acq. built
Production started
1120 built
(800 fully tested)
Full production rate
200 built
(pre-series)
Production started
~ 650 cold
~ 100 warm
Small delay with some warm PUs
Status of construction
Will be on-time~ 2000DAB card (VME)
Network infrastructure OK
Will be on-time
~ 750 CFC
~ 400 Acq.
Electronics (CFC and Acq.)
On-time
Beginning
~ 3800Ionization chambers
Network infrastructure OK Will be on-time
~ 4500 eachElectronics
(WBTN and Integrator)
Localized delays
Will be ~ on-time
~ 850 cold
~ 200 warm
Pick Ups
Status of installationMultiplicityComponent
S. Myers LEMIC 24th October 2006 30
BI: Individual Instruments (1/2)
Will be on-timeBeing finalizedElectronics
On-time
Beginning
~ ready2Mechanics/OpticsBSRT(Synch. light monitors)
On-time
Beginning
4 ready
+ 4 next months
8MechanicsBWS(Wire scanners)
Will be on-timePrototypes tested
Production starting
8Electronics
Some delay
Will be ~ on-time
Tanks & magnets ready
Windows for end 2006
4/8Mechanics/MagnetsBGI(Gas Ionization Monitors)
BBQ (Tune etc.)
BCT
Device
Prototypes tested (PLL tune tracking worked in SPS)
Slight delays
Design started
5 DCCTs ready
10 Fast BCTs ready
Status of construction
Will be on-timeSmallElectronics
Will be ~ on-timeSmallPUs + kickers
Will be on-timeElectronics
On-time; inst. starting
On-time; inst. starting
4 DCCT
8 Fast BCTs
Transformers
Status of installationMultiplicityComponent
Will be on-timeBeing finalizedElectronics
On-time
Beginning
~ ready2Mechanics/OpticsBSRT(Synch. light monitors)
On-time
Beginning
4 ready
+ 4 next months
8MechanicsBWS(Wire scanners)
Will be on-timePrototypes tested
Production starting
8Electronics
Some delay
Will be ~ on-time
Tanks & magnets ready
Windows for end 2006
4/8Mechanics/MagnetsBGI(Gas Ionization Monitors)
BBQ (Tune etc.)
BCT
Device
Prototypes tested (PLL tune tracking worked in SPS)
Slight delays
Design started
5 DCCTs ready
10 Fast BCTs ready
Status of construction
Will be on-timeSmallElectronics
Will be ~ on-timeSmallPUs + kickers
Will be on-timeElectronics
On-time; inst. starting
On-time; inst. starting
4 DCCT
8 Fast BCTs
Transformers
Status of installationMultiplicityComponent
S. Myers LEMIC 24th October 2006 31
BI: Individual Instruments (2/2)
Beginning
Will be on-time
In construction (LARP for IP1 & 5, LETI for IP2 & 8)
4 (IP1 & 5)
4 (IP2 & 8)
MechanicsBRAN(Luminosity Monitors)
Will be on-time in IP1 & 5
Uncertain in IP2 & 8
Proto. under test (IP1 & 5)
Under design (IP2 & 8)
Electronics
BQS(Schottky)
BTV(Screens)
Device
In construction (LARP)
~ ready
Fully built
26 ready
Status of construction
Will be on-time4Electronics
On-time for phase 14PUs
On-timeElectronics
12 installed / 14 soon
Beginning
35 Mechanics
Status of installationMultiplicityComponent
Beginning
Will be on-time
In construction (LARP for IP1 & 5, LETI for IP2 & 8)
4 (IP1 & 5)
4 (IP2 & 8)
MechanicsBRAN(Luminosity Monitors)
Will be on-time in IP1 & 5
Uncertain in IP2 & 8
Proto. under test (IP1 & 5)
Under design (IP2 & 8)
Electronics
BQS(Schottky)
BTV(Screens)
Device
In construction (LARP)
~ ready
Fully built
26 ready
Status of construction
Will be on-time4Electronics
On-time for phase 14PUs
On-timeElectronics
12 installed / 14 soon
Beginning
35 Mechanics
Status of installationMultiplicityComponent
S. Myers LEMIC 24th October 2006 32
Summary of Hardware Commissioning Goals
• During 2007: fully commission 4 sectors and partially commission other 4– Hand over machine to operations 1st Nov.2007
• During 2008: (re)commission all sectors to 100% in the first 3 months.– Hand over machine to operations on 1st April 2008
S. Myers LEMIC 24th October 2006 33
NeedNeed to to allocateallocate 4 4 weeksweeks for for thethe powerpower tests tests ofof SectorSector 11--22
NeedNeed to to allocateallocate periodsperiods for for thethe commissioningcommissioning ofof thethe accessaccess systemsystem
Planning end 2007
Full Machine Checkout
Beam commissioning to 450 GeV & Engineering run
Access Control System – Global Test
20
07
Full Machine Checkout
Beam commissioning to 450 GeV & Engineering run
Access Control System – Global Test
20
07
S. Myers LEMIC 24th October 2006 34
450 GeV Run• Fastest Safe Path to low intensity collisions
– Commission essential safety systems– Commission essential beam instrumentation– Commission essential hardware systems– Perform measurements to check:
• Polarities and R1/R2 anomalies• Aperture• Field characteristics
• Skip non-essential– Mop up in interleafed MD
• Could also do in MD:– First part of ramp *****– Get a handle on reproducibility etc.
S. Myers LEMIC 24th October 2006 35
0
14000
-3000 -2000 -1000 0 1000 2000 3000
Time [s]
MB
curre
nt
0
1
2
3
4
5
6
7
8
9
B [T
]
RAMP DOWNSTART RAMP
PHYSICS
PREPAREPHYSICS
BEAM DUMP
PREINJECTIONPLATEAU
INJECTION
T0 Tinj
SQUEEZE
PHYSICS
LHC operational cycle
Ramp down 18 Mins
Pre-I njection Plateau 15 Mins
I njection 15 Mins
Ramp 28 MinsSqueeze 5 Mins
Prepare Physics 10 MinsPhysics 10 - 20 Hrs
S. Myers LEMIC 24th October 2006 36
450 GeV Phases
Phase1 First turn
2 Establish circulating beam
3 450 GeV – initial
4a 450 GeV - consolidation
4b 450 GeV – system commissioning
5a Two beam operations
5b Collisions
6 Increase intensity
S. Myers LEMIC 24th October 2006 37
First Turn
Team Sub-phaseTotal Timeboth rings
Priority450 GeVCollisions
BT/OP
Commission TI8 & TI2 end transfer line,Commission injection region: kickers, septa,check aperture, instrumentation, beam toTDI.
24 1 Essential
OP/BICommission trajectory acquisition andcorrection, thread beam - first turn, energymatching
48 1 Essential
BICommission Beam Loss Monitor systemphase 1
12 1 Parasitic
OP/APOrbit response, kicks, trajectory,BPM and corrector polarity checks
24 1 Essential
OP Initial aperture checks 16 1 Leave
OP Momentum aperture 6 1 Leave
COL Setting up of injection machine protection 12 2 Leave
6 days 4 days
Commissioning for 7 TeV 450 GeV
S. Myers LEMIC 24th October 2006 38
Circulating beam
Sub-phaseTotal Timeboth rings
Priority450 GeVCollisions
OP/APAdjust chromaticity, close trajectory,establish multiple turns, obtain closedorbit
24 1 Essential
OP/RFEnergy matching and correction, B-sps, f-lhc, B-lhc - both rings, RF capture
32 1 Essential
OP/APMeasure integer tunes, fractional tunes,phase advance per turn
16 1 Essential
3 days 3 days
S. Myers LEMIC 24th October 2006 39
450 GeV - initial
Team Sub-phaseTotal Timeboth rings
Priority450 GeVCollisions
RFBeam control loops (Phase, Synchro, Radial). Tuner loop, RF Feedback loop. Synchronisation
24 1 Essential
OP/APTest control and correction (corrector polarities, cabling, control system, software, procedures …). Measure & correct orbit.
16 1 Essential
OP/BICommission transverse diagnostics - tune measurement [FFT]. Measure and adjust tunes, chromaticity, and coupling.
16 1 Essential
OP/APLinear optics checks: check orbit versus kick, phase advance, BPM and corrector polarity.
24 1 MD
BICommission beam loss monitors - acquisition, display etc. No connection to BIC for the moment.
12 1 Parasitic
BT Commission beam dump - phase 1 24 1 Essential
BI Commission BCTs: lifetime measurement - 1 Parasitic
MPSCommission beam interlock system with beam - phase 1. BIC to dump with beam. Test.
8 1 Essential
5 days 3 days
S. Myers LEMIC 24th October 2006 40
Measurements
Team Sub-phaseTotal Timeboth rings
Priority450 GeVCollisions
BT Matching between TI8/TI2 and ring. Pilots. 8 2 Leave
AP/OPMeasure beta beating. Identify and correctlocal sources of phase advance errors.
16 1 Do
MA/OPCheck key transfer functions (separationdipoles etc.)
16 1 Later [MD]
AP/OPMechanical aperture checks. Bumps – checkthe aperture in the cold machine
16 1 Essential
OP/MA Field quality checks. Check design fields,field harmonics, fields due to offsetsbetween beam and magnet
16 1 ≤ b3
OP Momentum aperture 8 2 Do
OP IR bumps, check aperture in IRs 8 1 Leave
OP/AP Reproducibility after cycling machine. Effect ofmagnetic cycle, reproducibility, field model
16 1 Leave
BI/AP Quench levels and BLM response 24 2 Leave
5 days 1-2 days
S. Myers LEMIC 24th October 2006 41
System commissioningTeam Sub-phase
Total Timeboth rings
Priority450 GeVCollisions
RF Loop adjustment 8 1 Do
RF Transverse damper 8 2 Leave
RF Longitudinal feedback 8 1 Leave
BI Transverse profile monitors 8 2 Parasitic
BICommission beam loss monitors - phase 2,calibration, thresholds. Commission theBLM's around the collimators. Link to BIC
16 1 Parasitic
BI Tune - PLL 16 1 Do
OP Closed orbit feedback 16 1 Do later
COLAdjustment of collimators, orbit stabilization,test positioning procedures, beam lossmonitors.
36 1Essential for
Intensityincrease
BT TDI. Position, angle, interlocks 8 1 Essential
BT TCDQ orbit at 6, position, angle, interlocks 16 1 Essential
MPS FMCM 4 1 Do
MPSTest Safe LHC Parameters: Safe Beam Flag,Beam Presence Flag, Safe LHC mode, SafeEnergy, Safe Squeezing Factor
8 1Essential
(plus parasitic)
7 days 2-3 days
S. Myers LEMIC 24th October 2006 42
2 beam operation
Team Sub-phase Total Time Priority450 GeVCollisions
OP SPS - switch rings - TI8/TI2 in parallel – LHC injection 8 1 Parasitic
OP/BTCommission separation bumps. Closure of bumps.Check aperture. Check injection region.
16 1 Essential
OP/AP Effect of bumps - dispersion, non-closure 8 2 Leave
BIBeam parameters: Q split, Q' split, coupling, Beam instrumentation: BLMs, BPMs cross talk etc.
8 1 Do
OPControl system: real-time feedback, orbit correction,orthogonality etc., energy matching - 2 rings
8 1 Do
2 days 1 Day
S. Myers LEMIC 24th October 2006 43
Colliding beams
Team Sub-phaseTotalTime
Priority
OPSeparation bump reduction, check interaction with orbitfeedback: points 1,2,5 & 8. Establish collisions
4*8 Essential
BICommission luminosity monitors (v. low interaction
rates)8 Parasitic
COL Collimation setup -Optimisati
on
OPCommission spectrometer compensation (compensation
at450 GeV?). Bring solenoids on.
2*8 Essential
2 days 1-2 days
S. Myers LEMIC 24th October 2006 44
Time
PhaseBeam time
[days]
1 First turn 4
2 Establish circulating beam 3
3 450 GeV – initial 3
4a 450 GeV - consolidation 1-2
4b 450 GeV – system commissioning 2-3
5a 2 beam operations 1
5b Collisions 1-2
16 days
Given an operational efficiency of 60%, this gives an elapsed time of about 26 days.
S. Myers LEMIC 24th October 2006 45
31 Days!!
S. Myers LEMIC 24th October 2006 46
1.6 10136.2 10121.7 10128.6 1011intensity per beam
1.1.45.12.06beam energy (MJ)
65102.80.7event rate 1 1 5 (kHz)
701130.8W rate 2 1 5 (per 24h)
71.10.30.08Z rate 3 1 5 (per 24h)
1.6 10302.6 10297 10282 1028Luminosity 1 5
11111111* 1 5 (m)
10442ib (1010)
1561564343Kb
1.6 10136.2 10121.7 10128.6 1011intensity per beam
1.1.45.12.06beam energy (MJ)
65102.80.7event rate 1 1 5 (kHz)
701130.8W rate 2 1 5 (per 24h)
71.10.30.08Z rate 3 1 5 (per 24h)
1.6 10302.6 10297 10282 1028Luminosity 1 5
11111111* 1 5 (m)
10442ib (1010)
1561564343Kb
1. Assuming 900GeV inelastic cross section 40mb2. Assuming 900GeV cross section W → lν 0.5nb3. Assuming 900GeV cross section Z → ll 50pb
Installation
Hardware CommissioningShutdown
Engineering Run
450GeV
Hardware Commissioning
450GeV
Installation
Hardware CommissioningShutdown
Engineering Run
450GeV
Hardware Commissioning
450GeV
Collisions 450GeV
Ramp commissioning
Beam commissioningBeam commissioning
450GeV450GeV
Machine checkoutMachine checkout
450GeV450GeV
Collisions 450GeV
Ramp commissioning
Beam commissioningBeam commissioning
450GeV450GeV
Machine checkoutMachine checkout
450GeV450GeV
S. Myers LEMIC 24th October 2006 47
0
14000
-3000 -2000 -1000 0 1000 2000 3000
Time [s]
MB
curre
nt
0
1
2
3
4
5
6
7
8
9
B [T
]
RAMP DOWNSTART RAMP
PHYSICS
PREPAREPHYSICS
BEAM DUMP
PREINJECTIONPLATEAU
INJECTION
T0 Tinj
SQUEEZE
PHYSICS
LHC operational cycle
Ramp down 18 Mins
Pre-I njection Plateau 15 Mins
I njection 15 Mins
Ramp 28 MinsSqueeze 5 Mins
Prepare Physics 10 MinsPhysics 10 - 20 Hrs
S. Myers LEMIC 24th October 2006 48
Staged commissioning plan for protons
25ns
ops
Install Phase II and MKB
25ns ops II
75ns ops43 bunch operation
Beam commissioning
Machine checkout
Hardware commissioning
Stage I II III
No beam Beam
IV
I. 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)
II. 75ns operation – Establish multi-bunch operation, moderate intensities– Relaxed machine parameters (squeeze and crossing angle)– Push squeeze and crossing angle
III. 25ns operation I– Nominal crossing angle– Push squeeze– Increase intensity to 50% nominal
IV. 25ns operation II– Push towards nominal performance
Beam
S. Myers LEMIC 24th October 2006 49
0.240.241.2 101.2 1032322.12.11.1 101.1 1033331571571.4 101.4 101414115 105 10101028082808
0.150.157.9 107.9 1031310.720.723.8 103.8 1032321261261.1 101.1 101414224 104 10101028082808
0.240.241.2 101.2 1032321.11.15.9 105.9 1032321571571.4 101.4 1014142255 1010101028082808
0.150.152.6 102.6 103131<< 1<< 12.4 102.4 10313142423.7 103.7 10131311114 104 101010936936
0.150.152.6 102.6 1031310.730.731.3 101.3 10323242423.7 103.7 101313224 104 101010936936
0.150.154.4 104.4 1030300.760.762.2 102.2 103131776.2 106.2 101212224 104 101010156156
0.150.151.2 101.2 103030<< 1<< 11.1 101.1 103030221.7 101.7 10121211114 104 1010104343
Rates in 2 (and 8)Rates in 2 (and 8)Rates in 1 and 5Rates in 1 and 5Beam levelsBeam levelsParametersParameters
0.150.15
Events/Events/
crossingcrossing
1.2 101.2 1030300.760.766.1 106.1 103030221.7 101.7 101212224 104 1010104343
LuminosityLuminosity
(cm(cm--22ss--11))
Events/Events/
crossingcrossing
LuminosityLuminosity
(cm(cm--22ss--11))
EEbeambeam
(MJ)(MJ)
IIbeambeam
protonproton* 1,5* 1,5
(m)(m)
NNkkbb
0.240.241.2 101.2 1032322.12.11.1 101.1 1033331571571.4 101.4 101414115 105 10101028082808
0.150.157.9 107.9 1031310.720.723.8 103.8 1032321261261.1 101.1 101414224 104 10101028082808
0.240.241.2 101.2 1032321.11.15.9 105.9 1032321571571.4 101.4 1014142255 1010101028082808
0.150.152.6 102.6 103131<< 1<< 12.4 102.4 10313142423.7 103.7 10131311114 104 101010936936
0.150.152.6 102.6 1031310.730.731.3 101.3 10323242423.7 103.7 101313224 104 101010936936
0.150.154.4 104.4 1030300.760.762.2 102.2 103131776.2 106.2 101212224 104 101010156156
0.150.151.2 101.2 103030<< 1<< 11.1 101.1 103030221.7 101.7 10121211114 104 1010104343
Rates in 2 (and 8)Rates in 2 (and 8)Rates in 1 and 5Rates in 1 and 5Beam levelsBeam levelsParametersParameters
0.150.15
Events/Events/
crossingcrossing
1.2 101.2 1030300.760.766.1 106.1 103030221.7 101.7 101212224 104 1010104343
LuminosityLuminosity
(cm(cm--22ss--11))
Events/Events/
crossingcrossing
LuminosityLuminosity
(cm(cm--22ss--11))
EEbeambeam
(MJ)(MJ)
IIbeambeam
protonproton* 1,5* 1,5
(m)(m)
NNkkbb
Possible Beam Parameter Evolution at 7TeV/beam
Considered to be an all-out maximum with the hardware as installed
S. Myers LEMIC 24th October 2006 50
Summary
• LHC is approaching completion.
• LHC commissioning is prepared (in detail.)
• 450 GeV collisions run in 2007.
• LHC collisions at 7 TeV in 2008 (possible
luminosities, around 1033 cm-2 s-1).
– Finalised plan after the 450 GeV run
• More physics