H igh Energy H igh Intensity H adron Beams

Name Event DateName Event Date11

CARE06, INFN, Frascati, November 17, 2006CERN

F. Zimmermann

HHigh Energyigh EnergyHHigh Intensityigh IntensityHHadron Beamsadron Beams

http://care-hhh.web.cern.ch/care-hhh/

HHHHHHHHHHHH NetworkNetworkcoordinated by F. Ruggiero and W. Scandalecoordinated by F. Ruggiero and W. ScandaleF. Zimmermann stepping in for F. RuggieroF. Zimmermann stepping in for F. RuggieroWith input from H. Schmickler, With input from H. Schmickler, W. Scandale, and S. PeggsW. Scandale, and S. Peggs


F. Zimmermann CARE06, HHH Network - 17 November 2006CERN

HHHHHHHHHHHHCARE-HHH GoalsCARE-HHH GoalsCoordinateCoordinate and and integrateintegrate the activities of the accelerator and particle the activities of the accelerator and particle

physics communities in a worldwide context, towards achieving superior physics communities in a worldwide context, towards achieving superior HHigh-Energy igh-Energy HHigh-Intensity igh-Intensity HHadron Beam facilities for Europeadron Beam facilities for Europe

road map for the upgrade of the European accelerator infrastructure (LHC and GSI accelerator complex) coordinate activities and foster future collaborations dissemination and outreach



HHHHHHHHHHHH 3 Work Packages3 Work Packages

WP1: Advancements in WP1: Advancements in AAccelerator ccelerator MMagnet agnet TTechnologies echnologies (AMT)(AMT)

WP2: Novel Methods for WP2: Novel Methods for AAccelerator ccelerator BBeam eam IInstrumentation nstrumentation (ABI)(ABI)

WP3: WP3: AAccelerator ccelerator PPhysics and synchrotron hysics and synchrotron DDesign esign (APD)(APD)



HHHHHHHHHHHHParticipating InstitutesParticipating InstitutesParticipating institutes: Participating institutes: CEA, CERN, CSIC-CIEMAT, CCLRC, DESY, GSI, CEA, CERN, CSIC-CIEMAT, CCLRC, DESY, GSI, INFN, PSI, TEU, WUTINFN, PSI, TEU, WUT

Associated institutes: Associated institutes: CRPP, ENEA, TUBE, ESRF, UPSA, FZK, TEMF, CRPP, ENEA, TUBE, ESRF, UPSA, FZK, TEMF, US-LARP (BNL,FNAL,LBNL,SLAC), JINR, IHEP, KEKUS-LARP (BNL,FNAL,LBNL,SLAC), JINR, IHEP, KEK

Additional collaborations: Additional collaborations: Texas A&M U., U. Geneva, U. Bologna Texas A&M U., U. Geneva, U. Bologna



HHHHHHHHHHHHActivities in 2006Activities in 2006Events: • 5 workshops in 2006 + CARE-HHH GSI-CERN meeting • detector upgrade studies & machine-experiment interface WG• LHC crab cavities WGDissemination and outreach: • numerous presentations at workshops & conferences • 21 new HHH publications, 4 workshop proceedings (2 to come)• HHH web sites maintained & developedExchanges and education: • 3 US accelerator physicists supported for HHH workshops • 1 EU junior scientist • 2 EU summer students, 1 master student, 5 doctoral students • 1 US-LARP Toohig fellow



HHHHHHHHHHHH2006 HHH Publications 2006 HHH Publications 11 CARE-Report-06-008-HHHCARE-Report-06-008-HHH Annual ReportAnnual Report 2005 of the HHH Collaboration 2005 of the HHH Collaboration Editors F. Ruggiero, W. Editors F. Ruggiero, W.

ScandaleScandaleJanuary January

20062006

22 CARE-Conf-06-014-HHHCARE-Conf-06-014-HHH ProceedingsProceedings of the LHC-LUMI-05 Workshop of the LHC-LUMI-05 Workshop Editors F. Ruggiero, Editors F. Ruggiero, W. Scandale, F. Zimmermann W. Scandale, F. Zimmermann July 2006July 2006

33 CARE-Conf-06-036-HHHCARE-Conf-06-036-HHH ProceedingsProceedings of the AMT ECOMAG Workshop of the AMT ECOMAG Workshop L. Bottura et alL. Bottura et al June 2006June 2006

44 CARE-Conf-06-049-HHHCARE-Conf-06-049-HHH ProceedingsProceedings of the AMT WAMDO Workshop of the AMT WAMDO Workshop T. Taylor et alT. Taylor et al November November 20062006

55 CARE-Conf-06-010-HHHCARE-Conf-06-010-HHH Non-linear Collimation in Linear and Circular Non-linear Collimation in Linear and Circular Colliders Colliders

A. Faus-Golfe, J. Resta-López, A. Faus-Golfe, J. Resta-López, F. Zimmermann F. Zimmermann June 2006June 2006

66 CARE-Conf-06-020-HHHCARE-Conf-06-020-HHH LHC Upgrade Options and CARE-HHH LHC Upgrade Options and CARE-HHH ActivitiesActivities F. Zimmermann F. Zimmermann June 2006June 2006

77 CARE-Conf-06-021-HHHCARE-Conf-06-021-HHH Electron-Cloud Benchmarking and CARE-HHH Electron-Cloud Benchmarking and CARE-HHH CodesCodes F. Zimmermann F. Zimmermann June 2006June 2006

88 CARE-Conf-06-022-HHHCARE-Conf-06-022-HHH LHC Luminosity and Energy UpgradesLHC Luminosity and Energy Upgrades W. Scandale W. Scandale June 2006June 2006

99 CARE-Conf-06-023-HHHCARE-Conf-06-023-HHH Accelerator Physics Code Web RepositoryAccelerator Physics Code Web Repository F. Zimmermann et alF. Zimmermann et al June 2006June 2006

1010 CARE-Conf-06-024-HHHCARE-Conf-06-024-HHH Possible Uses of Rapid Switching Devices and Possible Uses of Rapid Switching Devices and Induction RF for an LHC UpgradeInduction RF for an LHC Upgrade F. Zimmermann F. Zimmermann March March

20062006

1111 CARE-Conf-06-025-HHHCARE-Conf-06-025-HHH Assessment of the Wire Lens at LHC from the Assessment of the Wire Lens at LHC from the current Pulse Power Technology Point of Viewcurrent Pulse Power Technology Point of View F. Zimmermann, U. Dorda et al F. Zimmermann, U. Dorda et al March March

20062006

1212 CARE-Conf-06-026-HHHCARE-Conf-06-026-HHH Simulation of LHC Long-Range Beam-Beam Simulation of LHC Long-Range Beam-Beam Compensation with DC and Pulsed WiresCompensation with DC and Pulsed Wires U. Dorda, F. Zimmermann U. Dorda, F. Zimmermann March March

20062006

1313 CARE-Conf-06-027-HHHCARE-Conf-06-027-HHH Simulation Study on the Energy Dependence of Simulation Study on the Energy Dependence of the TMCI Threshold in the CERN-SPSthe TMCI Threshold in the CERN-SPS

G. Rumolo, E. Métral, E.N. G. Rumolo, E. Métral, E.N. Shaposhnikova /Shaposhnikova / June 2006June 2006

1414 CARE-Conf-06-028-HHHCARE-Conf-06-028-HHH Benchmarking Electron Cloud Data with Benchmarking Electron Cloud Data with Computer Simulation CodesComputer Simulation Codes U. Iriso, G. Rumolo U. Iriso, G. Rumolo June 0206June 0206



HHHHHHHHHHHH2006 Publications cont’d2006 Publications cont’d1515 CARE-Conf-06-029-HHHCARE-Conf-06-029-HHH Maps for Electron Clouds: Application to LHCMaps for Electron Clouds: Application to LHC T. Demma et alT. Demma et al June 2006June 2006

1616 CARE-Conf-06-030-HHHCARE-Conf-06-030-HHH Observation of the Long-range Beam-beam Effect in Observation of the Long-range Beam-beam Effect in RHIC and Plans for CompensationRHIC and Plans for Compensation W. Fischer et al W. Fischer et al June 2006June 2006

1717 CARE-Conf-06-031-HHHCARE-Conf-06-031-HHH Resonance Trapping, Halo Formation and Resonance Trapping, Halo Formation and Incoherent Emittance Growth due to Electron CloudIncoherent Emittance Growth due to Electron Cloud

E. Benedetto , G. Franchetti , E. Benedetto , G. Franchetti , G. Rumolo, F. Zimmermann G. Rumolo, F. Zimmermann June 2006June 2006

1818 CARE-Conf-06-032-HHHCARE-Conf-06-032-HHH Alternative Nonlinear Collimation System for LHCAlternative Nonlinear Collimation System for LHC J. Resta Lopez et al /J. Resta Lopez et al / June 2006June 2006

1919 CARE-Conf-06-033-HHHCARE-Conf-06-033-HHH An Early Beam Separation Scheme for the LHCAn Early Beam Separation Scheme for the LHC J.-P. Koutchouk, G. Sterbini J.-P. Koutchouk, G. Sterbini June 2006June 2006

2020 CARE-Conf-06-034-HHHCARE-Conf-06-034-HHH Investigations of the Parameter Space for the LHC Investigations of the Parameter Space for the LHC Luminosity UpgradeLuminosity Upgrade J.-P. Koutchouk J.-P. Koutchouk June 2006June 2006

2121 CARE-Conf-06-035-HHHCARE-Conf-06-035-HHH Interaction Region with Slim QuadrupolesInteraction Region with Slim Quadrupoles E. Laface, R. Ostojic et al E. Laface, R. Ostojic et al June 2006June 2006

2222 CARE-Conf-06-045-HHHCARE-Conf-06-045-HHH LHC IR Upgrade: A Dipole First Option with Local LHC IR Upgrade: A Dipole First Option with Local Chromaticity CorrectionChromaticity Correction

R. de Maria, O.S. Brüning, P. R. de Maria, O.S. Brüning, P. RaimondiRaimondi June 2006June 2006

2323 CARE-Conf-06-046-HHHCARE-Conf-06-046-HHH A Low Gradient Triplet Quadrupole Layout A Low Gradient Triplet Quadrupole Layout Compatible with NbTi Technology & Beta*=0.25mCompatible with NbTi Technology & Beta*=0.25m

R. de Maria, O.S. Brüning,R. de Maria, O.S. Brüning, June 2006June 2006

2424 CARE-Note-2006-013-HHHCARE-Note-2006-013-HHH Main Outlines of Workshop on Beam Generated Main Outlines of Workshop on Beam Generated Heat Deposition & Quench Levels for LHC MagnetsHeat Deposition & Quench Levels for LHC Magnets R. Assmann et al.R. Assmann et al. September September

20062006

2525 CARE-Note-2006-014-HHHCARE-Note-2006-014-HHH A Possible Upgrade of the LHC Injection Lines to A Possible Upgrade of the LHC Injection Lines to 900 GeV using HERA Dipoles 900 GeV using HERA Dipoles K.-H. Mess & D. SmekensK.-H. Mess & D. Smekens September September

20062006

2626 CARE-Note-2006-018-HHHCARE-Note-2006-018-HHH Database Design for Superconducting MagnetsDatabase Design for Superconducting Magnets E. Laface, T.-J. ChoE. Laface, T.-J. Cho Nov. 2006Nov. 2006

2727 CARE-pub-06-002CARE-pub-06-002 Electromagnetic Design of S.C QuadrupolesElectromagnetic Design of S.C Quadrupoles L. Rossi, E. TodescoL. Rossi, E. Todesco Nov. 2006Nov. 2006

2828 CARE-pub-06-003CARE-pub-06-003 Parametric Analysis of Forces and Stresses in Parametric Analysis of Forces and Stresses in Superconducting Quadrupole Sector WindingsSuperconducting Quadrupole Sector Windings

P. Fessia, F. Regis, E. P. Fessia, F. Regis, E. TodescoTodesco Nov. 2006Nov. 2006

2929 CARE-pub-06-004CARE-pub-06-004 An Estimate of the Maximum Gradients in An Estimate of the Maximum Gradients in Superconducting Quadrupoles,Superconducting Quadrupoles, E. Todesco, L. RossiE. Todesco, L. Rossi Nov. 2006Nov. 2006



HHHHHHHHHHHHMajor Invited TalksMajor Invited TalksAdvanced ICFA Workshop on High Brightness Hadron Beams (HB2006)Advanced ICFA Workshop on High Brightness Hadron Beams (HB2006) - “LHC Upgrade Options and CARE-HHH Activities”- “LHC Upgrade Options and CARE-HHH Activities” F. Zimmermann F. Zimmermann-““Electron-Cloud Benchmarking & CARE-HHH Codes”Electron-Cloud Benchmarking & CARE-HHH Codes” F. Zimmermann F. Zimmermann

EPAC'06EPAC'06- “LHC Luminosity and Energy Upgrades”- “LHC Luminosity and Energy Upgrades” W. Scandale W. Scandale - - “Non-linear Collimation in Linear and Circular Colliders”“Non-linear Collimation in Linear and Circular Colliders” A. Faus-Golfe A. Faus-Golfe

International Conference on Charged and Neutral Particles Channeling International Conference on Charged and Neutral Particles Channeling Phenomena “Channeling 2006”Phenomena “Channeling 2006”– “– “Perspectives for Crystal Collimation”Perspectives for Crystal Collimation” W. Scandale W. Scandale

ATLAS Upgrade WorkshopATLAS Upgrade Workshop- “Machine Plans for the LHC Upgrade”- “Machine Plans for the LHC Upgrade” F. Zimmermann F. Zimmermann



HHHHHHHHHHHHHHH-AMTHHH-AMT• progress on s.c. conductor performance, stability, protection progress on s.c. conductor performance, stability, protection

• scaling laws for gradient & stress scaling laws for gradient & stress

• slim s.c. dipoles & quadrupoles inside detector slim s.c. dipoles & quadrupoles inside detector (D0, Q0) (D0, Q0)

• progress on database for sc cable and magnetsprogress on database for sc cable and magnets

• pulsed magnet working group slowed down pulsed magnet working group slowed down

• low-field super-ferric injector ring in LHC tunnel concludedlow-field super-ferric injector ring in LHC tunnel concluded

• synergy w HHH-APD, HHH-ABI, NED, fusion, US-LARPsynergy w HHH-APD, HHH-ABI, NED, fusion, US-LARP

• two workshops in 2006two workshops in 2006



HHHHHHHHHHHHAMT workshop AMT workshop (~130 participants)(~130 participants) on on Accelerator Magnet Design and Optimization Accelerator Magnet Design and Optimization

“WAMDO”, “WAMDO”, CERN, 2-6 April 2006CERN, 2-6 April 2006

Key topics: High Field Superconductors, High Field magnets, Main design issues of cycled (Hz range) magnets

Outcome: technological basis for IR & injector upgrade



HHHHHHHHHHHHAMT workshop AMT workshop (34 participants)(34 participants) on the on the Low Energy RingLow Energy Ring – –

a pre-accelerator in the LHC tunnela pre-accelerator in the LHC tunnelCERN, 11 October 2006CERN, 11 October 2006

GainsGainsHigher injection energy doubling of bunch intensityDrawbacksDrawbacks“SafeBeam” missing distributed beam dump experimental protectionSpin offSpin offSwitching dipoles alternative SPS upgrade



HHHHHHHHHHHHHHH-ABIHHH-ABI• Active collaboration & coordination w Active collaboration & coordination w US-LARP US-LARP onon ABI ABI

- - luminosity monitors; tune, chromaticity & coupling luminosity monitors; tune, chromaticity & coupling monitors; feedback loops for orbit, coupling and chromaticitymonitors; feedback loops for orbit, coupling and chromaticitycontrol; Schottky monitors; non-saturating beam currentcontrol; Schottky monitors; non-saturating beam currenttransformers; halo monitors transformers; halo monitors

• DESY-CERN collaborationDESY-CERN collaboration on machine protection issues on machine protection issues- CERN visit by M. Werner; DESY Fast Magnet Current - CERN visit by M. Werner; DESY Fast Magnet Current

MonitorMonitor produced for LHC (20 units); HERA quench studiesproduced for LHC (20 units); HERA quench studies

• Spin off 3Spin off 3rdrd HHH-ABI workshop on remote diagnostics HHH-ABI workshop on remote diagnostics- remote communication test at DESY; LHC @ FNAL control- remote communication test at DESY; LHC @ FNAL control

room; new initiative "LAFS" (LHC application Fermilabroom; new initiative "LAFS" (LHC application Fermilab software) software) → esssential add-ons, → esssential add-ons, e.g., RBAC = Role Based e.g., RBAC = Role Based accessaccess

• future study:future study: instrumentation upgrade for LHC upgrade instrumentation upgrade for LHC upgrade • 44thth HHH-ABI workshop HHH-ABI workshop on modern design tools 11/2006 on modern design tools 11/2006



HHHHHHHHHHHH

BPM sensor technology – simulation tools and resultsBPM sensor technology – simulation tools and results

BPM technology- electronics simulations, measurementsBPM technology- electronics simulations, measurements

cold BPM technologycold BPM technology

discussionsdiscussions

44thth CARE-HHH-ABI workshop on CARE-HHH-ABI workshop on

Simulation of BPM Front-End Electronics Simulation of BPM Front-End Electronics and Special Mechanical Designsand Special Mechanical Designs

LLüüneburg (Germany), 30 November – 1 December 2006neburg (Germany), 30 November – 1 December 2006about 15 participants expectedabout 15 participants expected



HHHHHHHHHHHHHHH-APDHHH-APD• progress on progress on alternative IR designsalternative IR designs, beam dynamics , beam dynamics

studies and tests to validate different options studies and tests to validate different options - - crystal collimation tests at SPScrystal collimation tests at SPS- RHIC beam-beam experiments w & w/o- RHIC beam-beam experiments w & w/o wireswires - paper study on LHC - paper study on LHC crab cavitiescrab cavities - CERN-GSI collaboration on - CERN-GSI collaboration on intensity limits intensity limits

• progress on progress on code web repository & benchmarkingcode web repository & benchmarking• 11stst optics solutions for pulsed PS2 optics solutions for pulsed PS2 • machine-detector interface machine-detector interface • synergy w HHH-AMT, US-LARP, MW proton driversynergy w HHH-AMT, US-LARP, MW proton driver• 3 workshops in 2006, 7 mini-workshops for 20073 workshops in 2006, 7 mini-workshops for 2007



HHHHHHHHHHHHspin-off from HHH-2004 workshop & ‘06 CERN-GSI meetingspin-off from HHH-2004 workshop & ‘06 CERN-GSI meeting



HHHHHHHHHHHHRHIC BBLRsRHIC BBLRs

installed last weekinstalled last week

courtesy W. Fischercourtesy W. Fischer



HHHHHHHHHHHHAPD CERN-GSI meeting APD CERN-GSI meeting (~30 participants) (~30 participants)

onon Collective Effects–Coordination of Theory and Collective Effects–Coordination of Theory and Experiments, Experiments, GSI, Darmstadt, Germany, 30–31 March 2006GSI, Darmstadt, Germany, 30–31 March 2006

improved collaboration: - resistive-wall & kicker impedance - space charge- electron-cloud effects- machine experiments



HHHHHHHHHHHH22ndnd APD mini-workshop APD mini-workshop (~25 participants) (~25 participants)

onon Crystal ChannelingCrystal Channeling CERN, 9-10 March 2006CERN, 9-10 March 2006

proposed experimental test in SPS North Area decided layout & goals for this experiment

jointly supported by CARE-HHH and INTASjointly supported by CARE-HHH and INTAS

International Conference International Conference (~77 participants) (~77 participants) onon Charged and Neutral Particles Channeling Phenomena Charged and Neutral Particles Channeling Phenomena

‘‘Channeling 06’Channeling 06’, Frascati, 3-7 July 2006, Frascati, 3-7 July 2006

co-sponsored by CARE-HHHco-sponsored by CARE-HHH

crystal reflection crystal assisted collimation in hadron colliders



HHHHHHHHHHHHHHH networking result:HHH networking result:SPS crystal collimation testSPS crystal collimation test

→ → HHH highlight talk W. ScandaleHHH highlight talk W. Scandale



HHHHHHHHHHHHAPD workshop ‘LUMI 06’ APD workshop ‘LUMI 06’ (70 participants)(70 participants)

Towards a Roadmap for the Upgrade of the Towards a Roadmap for the Upgrade of the LHC and GSI Accelerator ComplexLHC and GSI Accelerator Complex

IFIC, Valencia (Spain), 16-20 October 2006IFIC, Valencia (Spain), 16-20 October 2006→ strong synergy with US-LARP mini collaboration meeting 25-27 Oct. 2006 → strong synergy with US-LARP mini collaboration meeting 25-27 Oct. 2006

IR scheme, beam parameters, injector upgrade IR scheme, beam parameters, injector upgrade



HHHHHHHHHHHHIR upgrade & beam parameters:1) quadrupole 1st preferred over dipole 1st 2) pushed NbTi or Nb3Sn still pursued, or hybrid solution - new3) slim magnets inside detector (“D0 and Q0”) – new4) wire compensation almost established, electron lens – new 5) crab cavities: large angle rejected; small-angle – new6) 12.5 ns strongly deprecated7) e-cloud/pile-up compromise:

25-ns w *~10 cm, or 50-ns spacing long bunches – newinjector upgrade: 1) linac4/SPL & n.c. PS2 endorsed 2) SPS enhancements3) s.c. PS2+ challenged; e.g., e-cloud could be serious problem

for injectors - new

LUMI’06 ConclusionsLUMI’06 Conclusions



HHHHHHHHHHHH

not so short bunches & near head-on collision

triplet magnetsD0 dipole

D0 dipole deep inside detector (e.g., ~3 m from IP)

Q0 doublet deep inside detector (7.5 or 13 m from IP)

short bunches & “minimum” crossing angle & wire

wirecompensator

triplet magnetsQ0 doublet

triplet quadsmuch easier,less Q’,could be combinedwith D0

less LRcollisions.no geometriclumi. loss

small-angle

crab cavity

Example IR LayoutsExample IR Layouts



HHHHHHHHHHHHparameterparameter symbolsymbol nominalnominal ultimateultimate 12.5 ns spac., short 75 ns spacing, long

transverse emittancetransverse emittance [[m]m] 3.753.75 3.753.75 3.75 3.75

protons per bunchprotons per bunch NNbb [10 [101111]] 1.151.15 1.71.7 1.7 6

bunch spacingbunch spacing t [ns]t [ns] 2525 2525 12.5 75

beam currentbeam current I [A]I [A] 0.580.58 0.860.86 1.72 1

longitudinal profilelongitudinal profile GaussGauss GaussGauss Gauss flat

rms bunch lengthrms bunch length zz [cm] [cm] 7.557.55 7.557.55 3.78 14.4

beta* at IP1&5beta* at IP1&5 [m][m] 0.550.55 0.50.5 0.25 0.25

full crossing anglefull crossing angle c c [murad][murad] 285285 315315 445 430

Piwinski parameterPiwinski parameter cczz/(2*/(2*xx*)*) 0.640.64 0.750.75 0.75 2.8

peak luminositypeak luminosity LL [10 [103434 cm cm-2-2ss-1-1]] 11 2.32.3 9.2 8.9

events per crossingevents per crossing 1919 4444 88 510

initial lumi lifetimeinitial lumi lifetime LL [h] [h] 2222 1414 7.2 4.5

effective luminosity effective luminosity (T(Tturnaroundturnaround=10 h)=10 h)

LLeff eff [10[103434 cm cm-2-2ss-1-1]] 0.460.46 0.910.91 2.7 2.1

TTrun,optrun,opt [h] [h] 21.221.2 17.017.0 12.0 9.4


LLeff eff [10[103434 cm cm-2-2ss-1-1]] 0.560.56 1.151.15 3.6 2.9

TTrun,optrun,opt [h] [h] 15.015.0 12.012.0 8.5 6.6

e-c heat SEY=1.4(1.3)e-c heat SEY=1.4(1.3) P [W/m]P [W/m] 1.07 (0.44)1.07 (0.44) 1.04 (0.6)1.04 (0.6) 13.34 (7.85) 0.26

SR heat load 4.6-20 KSR heat load 4.6-20 K PPSRSR [W/m] [W/m] 0.170.17 0.250.25 0.5 0.29

image current heat image current heat PPICIC [W/m] [W/m] 0.150.15 0.330.33 1.87 0.96

gas-s. 100 h (10 h) gas-s. 100 h (10 h) bb PPgasgas [W/m] [W/m] 0.04 (0.38)0.04 (0.38) 0.06 (0.6)0.06 (0.6) 0.113 (1.13) 0.07 (0.7)

partial wire c. partial wire c.

LUMI’05

parameters

old upgrade parametersold upgrade parameters



HHHHHHHHHHHHparameterparameter symbolsymbol ultimateultimate 25 ns, smaller * 25 ns, large 50 ns, long transverse emittancetransverse emittance [[m]m] 3.753.75 3.75 7.5 3.75

protons per bunchprotons per bunch NNbb [10 [101111]] 1.71.7 1.7 3.4 4.9bunch spacingbunch spacing t [ns]t [ns] 2525 25 25 50beam currentbeam current I [A]I [A] 0.860.86 0.86 1.72 1.22

longitudinal profilelongitudinal profile GaussGauss Gauss Gauss Flat

rms bunch lengthrms bunch length zz [cm] [cm] 7.557.55 7.55 3.78 14.4beta* at IP1&5beta* at IP1&5 [m][m] 0.50.5 0.08 0.25 0.25

full crossing anglefull crossing angle c c [murad][murad] 315315 100 539 381

Piwinski parameterPiwinski parameter cczz/(2*/(2*xx*)*) 0.750.75 0.60 0.64 2.5peak luminositypeak luminosity LL [10 [103434 cm cm-2-2ss-1-1]] 2.32.3 15.5 9.7 8.9

events per crossingevents per crossing 4444 296 185 340

initial lumi lifetimeinitial lumi lifetime LL [h] [h] 1414 2.1 6.8 5.3


LLeff eff [10[103434 cm cm-2-2ss-1-1]] 0.910.91 2.4 2.7 2.3

TTrun,optrun,opt [h] [h] 17.017.0 6.5 12.0 10.3


LLeff eff [10[103434 cm cm-2-2ss-1-1]] 1.151.15 3.6 3.6 3.1

TTrun,optrun,opt [h] [h] 12.012.0 4.6 8.5 7.3e-c heat SEY=1.4(1.3)e-c heat SEY=1.4(1.3) P [W/m]P [W/m] 1.04 (0.59)1.04 (0.59) 1.04 (0.59) 2.56 (2.1) 0.36 (0.1)

SR heat load 4.6-20 KSR heat load 4.6-20 K PPSRSR [W/m] [W/m] 0.250.25 0.25 0.5 0.36

image current heat image current heat PPICIC [W/m] [W/m] 0.330.33 0.33 3.74 0.78

gas-s. 100 h (10 h) gas-s. 100 h (10 h) bb PPgasgas [W/m] [W/m] 0.06 (0.56)0.06 (0.56) 0.06 (0.56) 0.11 (1.13) 0.09 (0.9)

D0 + crab wire comp. wire comp.

LUMI’06

parameters

new upgrade parametersnew upgrade parameters



HHHHHHHHHHHHHHH networking result:HHH networking result:energy deposition in LHC triplet energy deposition in LHC triplet

→ → HHH highlight talk F. BroggiHHH highlight talk F. Broggi

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(r = 5.3 cm)

Bin Volume = 0.5x0.5x50 = 12.5 cm3

IP - Q1 = 23 m

Pow

er (W

/cm

3 )Power Density Distribution in Q1

23.75 m from IP 24.25 m 24.75 m 25.25 m 25.75 m 26.25 m 26.75 m 27.25 m 27.75 m 28.25 m 28.75 m 29.25 m 29.75 m

peak power deposition almost constantD0 heat load challenging



HHHHHHHHHHHHwork packages & milestoneswork packages & milestones

2008: LHC Upgrade Conceptual Design Report2010: LHC Upgrade Technical Design Report2015: New IR, Beam-Beam Compensation>2015: Luminosity ~5x1034 cm-2s-1

Francesco RuggieroCARE’05 plan

on track!on track!



HHHHHHHHHHHHdeliverables & milestones deliverables & milestones compared with original plancompared with original plan

2004: HHH & HHH-APD web site => OK2004: HHH & HHH-APD web site => OK2005: creation of first web-based beam dynamics code2005: creation of first web-based beam dynamics code

repository => OK repository => OK http://oraweb.cern.ch:9000/pls/hhh/code_website.startuphttp://oraweb.cern.ch:9000/pls/hhh/code_website.startup

2006: web based database for s.c. cables and magnets2006: web based database for s.c. cables and magnets=> OK, 40% complete => OK, 40% complete http://http://sdb.web.cern.ch/sdbsdb.web.cern.ch/sdb

milestones:milestones:web reference for IR optics => OKweb reference for IR optics => OKhttp://care-hhh.web.cern.ch/care-hhh/SuperLHC_IRoptics/IRoptics.html booster synchrotron optics => delayed to 2007booster synchrotron optics => delayed to 2007structured list of intensity limits => nearing completionstructured list of intensity limits => nearing completionscaling laws for magnet and cryogenic cost => 2007scaling laws for magnet and cryogenic cost => 2007

http://oraweb.cern.ch:9000/pls/hhh/code_website.startup

http://sdb.web.cern.ch/sdb



http://care-hhh.web.cern.ch/care-hhh/SuperLHC_IRoptics/IRoptics.html

http://care-hhh.web.cern.ch/care-hhh/SuperLHC_IRoptics/IRoptics.html



HHHHHHHHHHHHs.c. cable & magnet dbs.c. cable & magnet db~40% complete,http://sdb.web.cern.ch/sdb 2 milestone meetings2 reports

Materials

Project

LHC Quadrupole

NED ITERLHC Dipole

Strand

Cable

Strand

Cable

Strand

Cable

Strand

Cable






HHHHHHHHHHHHfuture workshops future workshops APD mini-Workshop on Electron Cloud Clearing

AMT Workshop on Heat Removal from s.c. Pulsed Magnets

AMT Workshop on High Field Magnets

ABI Workshop on Advanced Beam Instrumentation

three APD mini-Workshops on Crystal Collimation

APD mini-Workshop on Slim Magnets & Detector Integration

APD mini-Workshop on Crab Cavities, Wires and e-Lenses

APD GSI-CERN mtg. on Space-Charge & Impedance

APD mini-Workshop on Filling Patterns & Beam Density

APD contributions & support for Channeling ’07 St. Petersburg



HHHHHHHHHHHHAPD mini-Workshop on Electron Cloud Clearing ‘ECL2’: Electron Cloud Effects and Technological Consequenceslarger Geneva area, 1-2 March 2006Topics: continuous clearing electrodes based on enamel coating; other types of clearing electrodes; NEG coating; grooved surfaces; clearing efficiency; impedance issues

e- Cloud Clearing WSe- Cloud Clearing WS



HHHHHHHHHHHH ConclusionsConclusions

• enhanced coordination of enhanced coordination of HHH and US-LARPHHH and US-LARP strategies strategies

• focused focused activities in many cutting-edge areasactivities in many cutting-edge areas- crystals, slim magnets, e-cloud killer, low-angle crabs- crystals, slim magnets, e-cloud killer, low-angle crabs

• results benefit results benefit global accelerator communityglobal accelerator community• HHH is “HHH is “high-returnhigh-return investment investment for Europe” for Europe”• ambitious ambitious 2007/08 programme2007/08 programme



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appendixappendixupdated HHH gantt chartsupdated HHH gantt charts



HHHHHHHHHHHHgantt chart 1gantt chart 1

heat removal from pulsed magnets



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H igh Energy H igh Intensity H adron Beams

Documents

Transcript of H igh Energy H igh Intensity H adron Beams