r.bailey, january 2008 procedures phase a pilot physics run (43 to 156 bunches) oplhccwg document...

R.Bailey, January 2008R.Bailey, January 2008

ProceduresProcedures

Phase APilot physics run (43 to 156 bunches)

OP LHCCWG Document statusJanuary 2008

A.1 injection and first turn Magali Brennan Released

A.2 circulating beam, RF capture Magali Gianluigi In work

A.3 450 GeV, initial commissioning Verena Rhodri Under Approval

A.4 450 GeV, optics meas Stefano Frank Released

A.5 450 GeV, increase intensity Laurette Jan In work

A.6 450 GeV, two beam operation Walter/Verena Ralph Engineer check

A.7 450GeV, collisions Magali Helmut In work

A.8 snapback and ramp Reyes Mike In work

A.9 top energy checks with beam Walter Frank Engineer check

A.10 top energy, collisions Reyes Helmut In work

A.11 squeeze Stefano Massimo Released

A.12 experimental magnets Delphine Helmut In work


Getting ready for beam (situation end of 2007)Getting ready for beam (situation end of 2007)

Power tests of the magnet Power tests of the magnet circuitscircuits

Guess based on latest info from Katy et al

Sector Cool down Power tests When ready

12 11 - 16 17 - 29 July

23 08 - 13 14 - 24 June

34 14 - 19 20 - 27 July

45 19 - 24 25 - 28 July

56 05 - 09 10 - 21 May/June

67 08 - 13 14 - 21 May/June

78 04 - 09 10 - 21 May/June

81 06 - 11 12 - 24 June

For the other accelerator For the other accelerator systemssystems Finish installationFinish installation Component testsComponent tests Individual system testsIndividual system tests Integration into operationIntegration into operation

Readiness reviewsReadiness reviews

Dry runsDry runs

Machine checkoutMachine checkout

Take over finished sectors Take over finished sectors for operational testingfor operational testing


Injection and first turn / Circulating beam

Phase Step Activity Who (OP +)

A.1

A1.1 Commission injection region: beam 2, 1 pilot BT BI

A1.2 Threading around the ring: beam 2 BT BI AP

A1.3 Commission injection region: beam 1 BT BI

A1.4 Threading around the ring: beam 1 BT BI AP

A1.5 Check interleaved threading: beam 1 and beam 2 OP


A.2

A2.1 Instrumentation and corrector checks (Interleaved) CO BI

A2.2 Establish closed orbit (One beam at a time) OP

A2.3 Measurements with few turns (One beam at a time) AP

A2.4 Offsets between different sectors (Interleaved) OP

A2.5 RF observation equipment (One beam at a time) RF

A2.6 SPS-LHC Energy matching (Mostly interleaved) RF

A2.7 Synch Loop commissioning and beam capture (Interleaved) RF


450 GeV, initial commissioning


A.3

A3.1 Final RF commissioning with Pilot Intensity RF

A3.2 BCTFR and BPM checks with Pilot Intensity BI

A3.3 First Commissioning of Beam Dumping System (pilot) BT BI ATB

A3.4 Commission systems with higher intensity (3 x 1010) BT BI RF

A3.5 Establish cycling machine (3 x 1010) OP

A3.6 Lifetime optimisation (3 x 1010) OP

A3.7 Further commissioning of beam instrumentation (3 x 1010) BI

A3.8 Basic optics checks in addition to LOCO Results (3 x 1010) AP BI RF

A3.9 Further commissioning of beam dumping system (3 x 1010) BT BI

A3.10 Commission feedback systems (3 x 1010) RF BI

A3.11 Rough Setting up of the TDI (3 x 1010) BT


450 GeV, optics meas


A.4

A4.1 Measurement and correction of the closed orbit AP BI

A4.2 Measurement and correction of the linear optics AP BI

A4.3 Measurement and correction of the aperture AP

A4.4 Detailed RF measurements RF

A4.5 Measurement of the momentum aperture AP

A4.6 Collimators and protection devices for energy ramp Coll

A4.7 Measurements of the global non-linear optics AP

A4.8 Commissioning of the non-linear correctors AP

A4.9 Commissioning of bumps in the IR's AP

A4.10 Detailed injection matching AP BT

A4.11 Detailed beam loss studies BI Coll

A4.12 Tracking errors: measurements and corrections OP PO


450 GeV, increase intensity


A.5

A5.1 Tuning of injection protection (up to 4 bunches, 1e10 p+/bunch) BT BI CO

A5.2 Commissioning of the beam dumping system (43 bunches) BT BI AP RF

A5.3 Check Beam Instrumentation and beam parameters (43 bunches) BI

A5.4 Check MPS functionality of BLM (43 bunches) BI

A5.5 Setting-up of RF (43 bunches) RF

A5.6 Setting-up of the ring betatron and momentum collimation (43b) Coll

A5.7 Re-check and optimize injection settings (43b, 4e10 p+/bunch) BT

A5.8 Check some of the previous steps with 43b, 4e10 p+/bunch BT BI RF

A5.9 Check intensity dependence of safe beam flag CO

A5.10 Check beam load on cryogenics and vacuum system Cryo Vac

A5.11 Fine tuning of injection (156b, 1e10 p+/bunch to 9e10 p+/bunch) PO

A5.12 Commission beam dump system (156 bunches) BT BI CO

A5.13 Check Beam Instrumentation and beam parameters (156b) BT BI AP RF

A5.14 Setting-up of the RF (156 bunches) RF

A5.15 Setting-up of the betatron and momentum collimation (156b) Coll

A5.16 Setting-up of the transfer line collimators (156 bunches) BT Coll


450 GeV, two beam operation / 450GeV collisions


A.6

A6.1 Preparation OP

A6.2 Optimize correctors settings OP

A6.3 IR set up: separation bumps, SIS limits (first part) AP

A6.4 IR set up: aperture measurements with separation on Coll

A6.5 IR set up: separation bumps, SIS limits (second part) AP

A6.6 IR set up: triplet alignment checks (k modulation) AP

A6.7 Fine tune RF phase to guarantee collisions at IP AP

A6.8 Set up of two beam collimators (TCTVB) Coll

A6.9 Equalize beam characteristics OP

A6.10 Multi-bunch operation: initially 12 bunches AP

A6.11 Equalize beam characteristics AP


A.7

A7.1 Get Beams into Collision in the X,Y plane OP

A7.2 Measure and correct longitudinal position RF

A7.3 Monitor lifetime, beam losses and keep background low and stable OP

A7.4 Monitor luminosity during the fill provided by the experiments OP


Snapback and ramp / Top energy checks


A.8

A8.1 Separation scans (simple orthogonal separation for commissioning) AP

A8.2 Ramp single beam; ring 1 MA RF BI

A8.3 Post Ramp analysis RF AP

A8.4 Beam at Intermediate Intensity AP BT

A8.5 Iterate OP

A8.6 Commission collimators in the ramp Coll

A8.7 Commission feedback using PLL BI


A.9

A9.1 Measure and correct closed orbit after ramp AP BI Coll

A9.2 Measure & correct linear optics, verify reproducibility cycle - cycle AP

A9.3 Optimize beam extraction AP BT

A9.4 Check apertures and adjust collimators, including tertiaries AP BI Coll

A9.5 Characterize & optimize beam conditions: emittances, lifetimes AP

A9.6 Pre squeeze optics checks AP

A9.7 Measure & correct global non-linear optics AP


Top energy, collisions / Squeeze


A.10

A10.1 Get Beams into Collision in the X,Y plane OP

A10.2 Measure and correct longitudinal position RF

A10.3 Monitor lifetime, beam losses and keep background low and stable OP

A10.4 Separation scans (simple orthogonal separation for commissioning) AP

A10.5 Monitor luminosity during the fill provided by the experiments OP

A10.6 Waist measurement AP

A10.7 Measure b* AP

A10.8 Optimize Luminosity: beam-beam transfer function AP

A10.9 Absolute luminosity determination: beam parameters AP

A10.10 Absolute luminosity determination: Van de Meer AP


A.11

A11.1 Beam-based calibration and settings of collimators Coll

A11.2 Load magnet settings into hardware AP

A11.3 Running the betatron squeeze AP

A11.4 Preparation to bring the beams in collision AP


Experimental magnets


A.12

A12.1 Switch ON Alice solenoid with beams circulating at 450Gev

A12.2 Ramp Alice solenoid to nominal current

A12.3 Switch ON Atlas solenoid + toroids, beams circulating at 450Gev

A12.4 Ramp Atlas solenoid and toroids to nominal current

A12.5 Switch ON CMS solenoid, beams circulating at 450Gev

A12.6 Ramp CMS to nominal current

A12.7 The orbit measurement and corrections has to be repeated with the crossing angle ON, in phase B of the beam commissioning : CMS magnet will create an orbit distortion that will not be negligible

A12.8 Take a reference orbit for both beams

A12.9 Dump beams in LHC

A12.10 Switch ON LHCb magnets and the compensators

A12.11 Switch on ALICE magnets and compensators


Readiness reviews

Phase Need to check readiness of Max beam Who (OP +)

A.2

Closed orbit systemSector offset toolsRF beam observationEnergy matching toolsRF loops

Pilot

COBIAPRF


A.1

Injection region equipment (magnetic and TDI)BTVsThreadingBPMFast BCT

PilotBTBI


A.3

RF systemsBeam dump with pilotTDIBCTTune meter and PLLWire scannersSynchrotron lightRest Gas Ionisation monitorMulti turn acquisitionFeedback systems

3 1010

RFATBBIBT


Readiness reviews


A.4

At 450GeV Tune Coupling Beta beating Dispersion Aperture Momentum aperture Q’ Q’’ Non linear correctors Separation bumpsCollimators and protection devices for rampTracking between sectors

3 1010

APBIRFCollBTPO


A.5

Injection protection devicesMachine protection systemsBeam dump with multi bunchesBI with multi bunchesRF with multi bunchesCollimationBeam loads on cryogenicsBeam loads on vacuum

43 / 156 4 1010

BT BI MPCORFCollCryoVac


Readiness reviews


A.6

Injection with 2 beamsSeparation bumpsBI with 2 beamsRF with 2 beamsBeam dump with 2 beamsAperture

43 / 156 4 1010

BTBIRFAPColl


A.7Beams in collisionLongitudinal adjustment

43 / 156 4 1010

APRF


A.8

Ramp progressively to intermediate energies toolsBIFeedbacksTrackingBeam dumpCollimators

43 / 156 4 1010

APFidel teamRFBIBTColl


Readiness reviews


A.9

At top energy Tune Coupling Beta beating Dispersion Aperture Momentum aperture Q’ Q’’ Non linear correctors Separation bumps

43 / 156 4 1010

APBICollBT


A.10

Beams in collision toolsLongitudinal adjustmentLuminosity optimisationWaist measurementBeta measurement

43 / 156 4 1010

RFAP


A.11Squeeze progressively to lower betaCollimators

43 / 156 4 1010

CollAP


Extended LTCExtended LTC

Provisionally (RB, PC, OB, SM last week)Provisionally (RB, PC, OB, SM last week) March 3-7March 3-7 5 principal topics5 principal topics

Issues for injection into part of the machine (Mike)Issues for injection into part of the machine (Mike) Access, interlocks, RP, impact on hwc etcAccess, interlocks, RP, impact on hwc etc

From hwc to full machine commissioning (Gianluigi)From hwc to full machine commissioning (Gianluigi) Dry runs, machine checkout, overview of beam commissioning plansDry runs, machine checkout, overview of beam commissioning plans

Readiness and beam plans for accelerator systems (Roger)Readiness and beam plans for accelerator systems (Roger) Injection, extraction, RF, collimation etcInjection, extraction, RF, collimation etc

Readiness and beam plans for AP and BI systems (Oliver)Readiness and beam plans for AP and BI systems (Oliver) Aperture, beta beating, dispersion, optics etcAperture, beta beating, dispersion, optics etc

Readiness and beam plans for control systems (Jorg)Readiness and beam plans for control systems (Jorg) LSA, logging, post mortem, fixed displays etcLSA, logging, post mortem, fixed displays etc


LHCCWG topics 2008LHCCWG topics 2008

0 crossing angle filling schemes 0 crossing angle filling schemes WernerWerner Feb 12Feb 12 Parameters and tolerancesParameters and tolerances MassimoMassimo ?? 75ns (and 25ns) operation75ns (and 25ns) operation ?? ??

r.bailey, january 2008 procedures phase a pilot physics run (43 to 156 bunches) oplhccwg document...

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