1. LHC Software in Support of Early Commissioning Mike Lamont

2. Software for Early Commissioning 2 12-06-08 Outline Introduction Core operational software - reprise Requirements for early commissioning Key solutions for early commissioning Conclusions

3. Early Commissioning with Beam Commisioning of instrumentation Commissioning of hardware systems Commissioning of OP procedures with beam Commissioning of machine protection Beam based measurements to check  polarities; aperture; magnetic field quality; optics… Most of the core functionality should be place. Key instrumatation available and usuable. Need flexibility and support for system commissioning, diverse measurements and checks. Software for Early Commissioning 3 12-06-08 To facilitate this:

4. LSA (LHC Software Architecture) Standard architecure for high level software Middle tier designed to provide services to allow effective accelerator control. Technology now well established. Data model & business layer are common for all accelerators Database design and implementation well established Database contents for LHC mostly in place It has been deployed and thus tested on:  SPS, LEIR, TI2/TI8/CNGS,SM18 magnet tests, HWC Most core software in place, tested and deployed Software for Early Commissioning 4 12-06-08

5. Core 1 Optics & Magnet model  Machine layout, device configuration  Optics, Twiss  Transfer functions, harmonic errors etc.  On-line model Settings generation  Generation of settings spanning full parameter space Settings management & trim  Management of settings for all parameters through fullcycle  Coherent modifications  History of changes and rollback. Software for Early Commissioning 5 18/01/2008 To get anywhere would expect our base to be in place and reasonablely well tested.

6. Core 2 Hardware exploitation  Equipment control/settings Power Converters, RF, Collimators, Kickers, Beam Dump etc.  Equipment monitoring Run control  Hypercycle: pre-cycle, injection, ramp and squeeze  Sequencer, Mode etc. Timing  Timing events, event tables, telegrams, Safe Beam Parameters, injection requests…  RF: Bucket selection, pre-pulses  BST  Triggered measurement acquisition… Software for Early Commissioning 6 12-06-08

7. Software for Early Commissioning 7 12-06-08 Beam Loss Monitors - acquisition & concentration In place & rolling out Beam Loss Monitors - XPOC, Post mortem, study buffers In place & rolling out Beam Loss Monitors - Loggingroll out and test Beam Loss Monitors – OP displayIn place Beam Loss Monitors – expert applicationTo spec Beam Loss Monitors – critical settings – configuration & tests –threshold management V1 application in place Bunch Current Transformers acq & display BCTDCLHC & BCTFDLHC & BCTFRLHC Acq, log, FD in place Instrumentation – high level Key Beam Instrumenation must be available and useable

8. Software for Early Commissioning 8 12-06-08 Instrumentation – high level BPM: acquisition & concentration & publish All modes: capture, FIFO, orbit Logging, SDDS, in place, rolling out and test BPM: acquisition, log, displayRolling out BPM: trajectory and orbit correction YASP – see later BPM: multi-turn analysisApplication in place BPM: beta beating analysisTools in place – see later BPM: real time orbit feed backDeploy and test - see later BPMDLHC - dump line BPMXPOC – in place BPMITLHC – interlocked BPMsAcq/BIS, XPOC - test BTVI/BTVMLHC Screens (matching monitors) Acq, Control, Interlock in place and test

9. Software for Early Commissioning 9 12-06-08 Instrumentation – high level Tune/kickers (tune, aperture, AC dipole) control- acq – timing- applications – deploy and test Radmon (TW)acq – conc – display – roll out BQHTLHC – head-tail ChromaticityDeploy & test BSRALHC Abort gap monitorIn place - test BSRTFLHC/BSRTSLHC Synchrotron radiation monitors Application in place - test BGILHC – Rest Gas MonitorOn hold BWSLHC Wire ScannerApplication in place - test BQSLLHC - SchottkyWork in progress BRASCLHC/BRASGLHC - Luminosity monitors Work in progress

10. Standard services Security  Role Based Access Control (RBAC) Restrict access to accelerator devices Developed in the framework of the LAFS collaboration  Management of Machine Critical Settings (MCS) Post mortem Logging Fixed displays Communication with experiments Software Interlocks Daemons Measurement facilities Software for Early Commissioning 10 12-06-08 Rolling out

11. Software for Early Commissioning 11 12-06-08 Application XPOC Analog Acquisition Alarms SIS MCS PM Timing RBAC INJECTION KICKERSXXXXXXXX BEAM DUMPXXXXXXXX POWER CONVERTERSXXXXXXX COLLIMATORSXXXXXXX RFXXXXXXX TRANVERSE FBXXXXXX MAGNETSXXXX MKQA etcXXXXXX WARM MAGNETSXXXXXX RADIATION MONITORSXX SPECTROMETERSXXXX Services - Hardware

12. Software for Early Commissioning 12 12-06-08 Services - Instrumentation Priority Conc Settings State Logging PM SIS MCS Application FDisplay Daemon BPM [D,I] 1XXXXXX BLM 1XXXXXXX BCT [DC, FD, FR] 1XX BTV 1XXXXXX Rest Gas [BGI] 3XXXXX Sync. Rad [BSRA] 1XXXXXX Wire Scanners [BWS] 2XXXXX Luminosity [BRA,S,G] 1XXXX Tune [BQBBQ] 1XXXXXX Tune [BQHT] 2X AGM [BSRA] 2XXX Schottky [BQS] 2XXX BST [BOB] 1

13. Software for Early Commissioning 13 12-06-08 Hardware - examples

14. Software for Early Commissioning 14 12-06-08 Instrumentation - examples Would argue that core functionality is in good shape

15. Early Commissioning Readiness of procedures and software critical Not necessarily talking about sophisticated, automatic measure and correct utilites at this stage Emphasis on flexibility and off-line analysis Access to information:  measured field errors  aperture model  misalignments etc.  as built, non-conformities etc. Software for Early Commissioning 15 22/04/2008

16. A1 – Injection and First Turn Software for Early Commissioning 16 12-06-08 TaskSoftwareStatus Beam - Injection regions screensStandard software – on-line fitsIn place Steering injection point onto TDIYASPIn place Aperture scan at septaBumps, beam loss, BCTStandard BPM (capture acquisition)Standard utilityIn place BLM (study buffer acqusition)Standard utilityIn place ThreadingYASPIn place Energy mis-match and correctionYASP/LSAIn place BPM and corrector polarity checks [Kick – response if required] YASPIn place First cut aperture – kick at different phases BLMs, BCT, sum signal Kicker control, TDI control, settings etc – LSA Instrumentation commissioning using standard tools (BCT, BLMs…)

17. A2 - Capture Software for Early Commissioning 17 12-06-08 TaskSoftwareStatus Close second on first turnYASPIn place N turns average and correctYASPIn place Approx fractional tuneFFT BPM multi-turnIn place CaptureRF control and diagnosticsWIP Synchro loop, RF phase etc,StandardWIP Energy matching and correction (sector by sector) YASP/LSAIn place

18. A3 – 450 GeV Basics [1/2] Software for Early Commissioning 18 12-06-08 TaskSoftwareStatus Global and local orbit correctionYASPIn place Tune – basic measure and correct, check trim quad circuits Tune FFT BPM Multi-turn FFT In place PLL setupTune PLLIn place Chromaticity – basic measure and correct, check sextupole circuits RF frequency shift/LSA Tune PLL will be very useful [head-tail, RF phase modulation on hold] Coupling – basic measure and correct, check skew quad circuits Closest tune approach or multi-turn BPM/LSA Dispersion measurementYASP Beam dump commissioningTiming, BI, XPOC etc.Standard BLMs commissioningStandard utilitiesWIP Beam size - SLM, wire scannersStandard utilitiesIn place

19. A3 – 450 GeV Basics [2/2] Software for Early Commissioning 19 12-06-08 BPM and corrector polarityYASP: automated response measurements In place Optics – trajectory versus kickOrbit response analysis to give calibration dependent betas, calibration independent phases Off-line analysis tools - LOCO WIP Optics – phase advance Off-momentum beta Multi-turn data – harmonic analysis In place Local beta, alphaK modulationWIP Aperture – pairs of orthoginal correctors – big waves BLM, BCTAd hoc Momentum apertureRadial steering, beam lossIn place Central frequencyRadial steering, Q’ adjustmentIn place

20. A4 – 450 GeV Details 1/2 Software for Early Commissioning 20 12-06-08 TaskSoftwareStatus  /  measurement and correction (not trivial) Multi-turn analysis -> tune, coupling measurement and correction (not trivial)  D x /  x correction Analysis tools in place. (Essentially off-line analysis with interface to control system for access to measurements and introduction of corrections.) In place Inner triplet – commission QT, QSTune PLL/LSAIn place … Aperture – sliding bumpsYASP – 3C or 4C Automated bump scans will be available WIP Aperture – emittance blow-up, collimators Collimator optimization toolsIn place

21. A4 – 450 GeV Details 2/2 Software for Early Commissioning 21 12-06-08 TaskSoftwareStatus Alice/LHCb - spectrometersStandard YASP/LSAIn place Beam loss map studiesBLM expert Beam based alignment of collimators Collimator optimisation application V1 in place Tune versus Dp/p -> Q', Q'',... amplitude de-tuning PLLIn place Check non-linear correctors and spool circuits Feed-down with local bumps 7  bumps etc. Multi-turn analysis – various techniques Higher order chromaticity MD

22. A6 – Two Beams Software for Early Commissioning 22 12-06-08 TaskSoftwareStatus BPMs with two beams Orbit correction – two beams YASPIn place Separation bumpsLSA, YASPIn place Aperture - IRsBumps, BCT, BLMAd hoc Triplet alignmentK modulation Instrumentation: Tune, BLMsStandard utilitiesIn place Check Beam dumpStandard utilitiesIn place Commission Orbit feedbackGauls raring to go (GOFB)In place

23. A8 - Ramp Software for Early Commissioning 23 12-06-08 TaskSoftwareStatus - Magnet model (snapback) - Settings: Power converters, RF, Collimators - Feed forward - Timing LSA etc.In place Monitor: lifetime, tunes energy, beam losses, beam sizes (synchrotron light). standard utilitiesIn place Tune/Coupling PLL – hold the feedbackas aboveIn place Orbit – acquisition and then feedbackGOFBIn place ChromaticityProgrammed RF frequency modulation Tune PLL Beta beating measurements at intermediate energies - track optics changes As above Tracking (sector to sector)YASPIn place Longitudinal emittance blow-upRF utilitiesWIP

24. A9 – Flat Top – 5 TeV Software for Early Commissioning 24 12-06-08 TaskSoftwareStatus Orbit, tune, chromaticy, coupling, dispersion Check transfer functions As below Optics: beating, phase advance etc Multiturn plus appropriate excitation (aperture kicker, AC dipole) WIP Local optics checksK-modulation/PLL Collimators – local beam sizes Collimator optimizationV1 in place As for 450 GeV but with a little more care

25. Pulling out some key packages… Tune FFT, Tune PLL plus applications Beta beating analysis etc. Orbit++ Collimators On-line model Software for Early Commissioning 25 12-06-08

26. Tune Software for Early Commissioning 26 12-06-08 Ralph Steinhagen

27. Coupling Software for Early Commissioning 27 12-06-08

28. Optics… Software for Early Commissioning 28 12-06-08 Rogelio Tomas

29. Optics… Software for Early Commissioning 29 12-06-08

30. YASP - Bumps Software for Early Commissioning 30 12-06-08 Jorg Wenninger

31. YASP - Threading Software for Early Commissioning 31 12-06-08

32. YASP… Software for Early Commissioning 32 12-06-08

33. Collimators Software for Early Commissioning 33 12-06-08 Stefano Redaelli

34. On-line model Software for Early Commissioning 34 12-06-08 Ilya Agapov

35. Online model features General features Mad-X integrated development environment linked to control system; common repository of optics files and scripts; SVN version control Acquisition: machine snapshot from control system in madx format; interface to several measurement tools (orbit, beam screens, beta-beating,...) Manipulation libraries for Mad-X input and output (python) Generic fitting (model to measurements) and response matrix tools Merging models/parameters from different sources into single model Dynamic models and models beyond MAD-X Virtual machine (python classes) with API independent of underlying simulation code (multiple codes can be included) Server running the virtual accelerator, can be used by controls client applications Specific functionality Knobs (for aperture scans, crossing angle etc.). Test in OM and import in control system Aperture visualization; Trajectory interpolation; all calculations (bumps etc.) can be superimposed on the measured orbit 'Energy matching'; detecting optics errors from trajectories (in addition to LOCO) Beam parameter analysis in transfer lines 35 Software for Early Commissioning

36. Conclusions Core in good shape Tools to support early commissioning in place:  Tune, chromaticity, coupling…  Orbit  Beating analysis etc.  Collimation  On-line model Some holes to be checked/plugged. Deployment and testing ongoing. Preparation, preparation, preparation. Time will clearly be required during beam commissioning to commissioning the essential tools. Tests in progress Software for Early Commissioning 36 12-06-08 Acknowledgements