h igh energy h igh intensity h adron beams

CERNW. Scandale & F. Zimmermann CARE meeting, Paris, April 09, 2008

HHigh Energyigh EnergyHHigh Intensityigh IntensityHHadron Beamsadron Beams

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

HHHHHHHHHHHH NetworkNetworkcoordinated by W. Scandale and F. Zimmermanncoordinated by W. Scandale and F. Zimmermann

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W. Scandale & F. Zimmermann CARE meeting, Paris, April 9, 2008

CARE-HHH networkCARE-HHH networkCoordinateCoordinate 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

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)

Participating institutes: Participating institutes:

CEA, CERN, CSIC-CIEMAT, CCLRC, DESY, GSI, INFN, PSI, TEU, WUTCEA, CERN, CSIC-CIEMAT, CCLRC, DESY, GSI, INFN, PSI, TEU, WUT

Associated institutes: Associated institutes:

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

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

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activities in 2008activities in 2008Planned events:• 3 main workshops (one per WP)• 3 topical workshops (for APD): crab cavities, crystal collimation, electron cloud• 1 GSI-CERN bilateral HHH meeting• Participation in other international workshops:

• ICFA Beam Dynamics Mini-Workshop on deflecting/crabbing cavity applications in accelerators, Shanghai April 2008; Yi-Peng Sun,HHH fellow at CERN, will present the LHC crab cavity effort with HHH support

• International workshop on Multipactor, Corona and Passive Intermodulation, "Mulcopim", in Valencia September 2008, organized by ESA; the workshop will address electron-cloud effects andtheir prevention in spacecrafts and accelerators; HHH will send 4 persons

• Channeling 2008, Erice, November 2008. The workshop will address crystal-particle interaction phenomena

Dissemination and outreach: • Various workshops to be organized by/with physicists from LHC experiments• Contributions to EPAC’08, HB2008, and other events; seminars at EU universities• Further extensions of SC & accelerator physics codes databases• Maintenance and development of HHH web sites

Exchanges and education: • Visits of CERN accelerator physicist to other labs• Support of EU or non-EU (US, J, Russia,...) scientists for visits to CERN • Support of one PhD student and of two summer students working for the SC database

in AMT and of one fellow for the APD work-package

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workshops since CARE07workshops since CARE07

• 19-20 November: 19-20 November: CARE-HHH-AMTCARE-HHH-AMT workshop on workshop on Heat Heat Generation and Heat Transfer in Superconducting MagnetsGeneration and Heat Transfer in Superconducting Magnets ((THERMOMAG’07THERMOMAG’07), Paris, 2 days (about 70 participants) ), Paris, 2 days (about 70 participants)

• minimizing and evacuating heat in the next generation of superconducting minimizing and evacuating heat in the next generation of superconducting magnets for high intensity particle accelerators, such as the IR magnet for the magnets for high intensity particle accelerators, such as the IR magnet for the LHC luminosity upgrade and the fast cycling magnets for FAIR and for the LHC LHC luminosity upgrade and the fast cycling magnets for FAIR and for the LHC injector chain upgrade; injector chain upgrade;

• identify the state of the art onidentify the state of the art on

(1) cooling techniques (fluids and regimes), (1) cooling techniques (fluids and regimes),

(2) heat transfer mechanisms, (2) heat transfer mechanisms,

(3) modeling of heat transfer from coils to cooling system, (3) modeling of heat transfer from coils to cooling system,

(4) heat transfer experiments; identify a common set of thermal design criteria(4) heat transfer experiments; identify a common set of thermal design criteria

http://care-hhh.web.cern.ch/CAREHHH/Workshops/ProgThermomag.htmProgThermomag.htm

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workshops since CARE07workshops since CARE07

• 5th CARE-HHH-ABI5th CARE-HHH-ABI workshop on workshop on Schottky, Tune and Schottky, Tune and Chromaticity Diagnostic (with real time feedback)Chromaticity Diagnostic (with real time feedback) (about 30 participants), Chamonix, France, 11 - 13 (about 30 participants), Chamonix, France, 11 - 13 December 2007December 2007

• Joint BNL/CARE-HHH/US-LARPJoint BNL/CARE-HHH/US-LARP workshop on workshop on LHC LHC crab cavities crab cavities ((LHC-CC08LHC-CC08), BNL, 25-26 February 2008 ), BNL, 25-26 February 2008 (about 30 participants) - 3 persons attended with HHH (about 30 participants) - 3 persons attended with HHH supportsupport

http://adweb.desy.de/mdi/CARE/chamonix/abi_workshop_2007.htm

http://indico.cern.ch/conferenceDisplay.py?confId=24200

CERN

HHHHHHHHHHHHLHC-CC08LHC-CC08joint BNL/CARE-HHH/US-LARP workshop, BNL, 25-26 Feb. 2008use KEKB experience

plan R&D for crab cavities

phased approach: (1) prototype construction [SBIR]

(2) “global” crab cavity test in IR4,

(3) “local” crab cavities in IR1 & 5

international collaboration

RF Deflector( Crab Cavity )

Head-onCollision

Crossing Angle (11 x 2 m rad.)

Electrons PositronsLERHER

1.41 MV

1.41 MV

1.44 MV

1.44 MV

K. Oide

B. Palmer

R. Calaga

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Deflecting Cavity WorkshopDeflecting Cavity WorkshopICFA Beam Dynamics Mini-Workshop on Deflecting/Crabbing Cavity Applications in AcceleratorsApril 23-25, 2008 at SINAP, Shanghai

Topics:

deflecting/crabbing cavity R&D in the applications of: high energy colliders (ILC, LHC, KEK-B, CLIC, …) generation of short x-ray pulse in synchrotron light sources beam manipulations, emittance exchanges and diagnostics

http://www.sinap.ac.cn/ICFA2008/index.htm

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Mulcopim 2008Mulcopim 2008

meeting place for researchers, designers, test engineers and users of any space high-power RF hardware design and testing of high power RF hardware for the prevention of RF breakdown (Multipactor and Corona) and Passive Intermodulation

main topics:

international workshop on Multipactor,Corona,&Passive Intermodulation Valencia, 24-26 Sept.’08, organized by European Space Agency (ESA)

• high power RF hardware design • innovative testing techniques (facilities, detection methods, etc...) • theoretical investigations in the multipactor physics • surface coating & secondary emission: measurements and theory • simulation and prediction tools • multicarrier operation • electron cloud effects • multipactor in particle accelerators • power and frequency trends • harmonisation and standardisation

http://www.cfp.upv.es/mulcopim08

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Channeling 2008Channeling 2008international workshop on Charged and Neutral Particles Channeling Phenomena, October 25 - November 1, 2008 Erice (Trapani - Sicily), Italy , organized by INFN-LNF in cooperation with HADRON PHYSICS I3 , CARE HHH , and LPI RAS http://www.lnf.infn.it/conference/channeling2008

coherent scattering of relativistic charged particles in matter radiation of relativistic charged particles in periodic structures (coherent bremsstrahlung, channeling radiation, resonant transition radiation, diffraction radiation, parametric x-ray radiation, LPM effect) crystal channeling, volume capture and crystal reflection of positive ions: theory and experiments; crystal assisted collimation in hadron colliders: proposals and experimental observations channeling of radiations in capillary systems (micro- and nano-channeling, nanotubes, nanoporous) novel types of sources for electromagnetic radiation (FEL, Thomson scattering, laser plasma acceleration) applications of channeling phenomena (bending of the beams, positron sources, powerful radiation sources, x-ray waveguides, capillary/polycapillary optics, novel x-ray table-top instruments)

topics:

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deliverables & milestonesdeliverables & milestonesdeliverablesdeliverables

2004: HHH & HHH-APD web site => OK2004: HHH & HHH-APD web site => OK

2005: creation of first web-based beam dynamics code repository 2005: creation of first web-based beam dynamics code repository => OK => OK http://oraweb.cern.ch:9000/pls/hhh/code_website.startup

2007: web based database for s.c. cables and magnets concluded 2007: web based database for s.c. cables and magnets concluded

http://sdb.web.cern.ch/sdb=> OK=> OK

milestones:milestones:web reference for IR optics => OKweb reference for IR optics => OK

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

booster synchrotron optics => in progressbooster synchrotron optics => in progressstructured list of intensity limits => OKstructured list of intensity limits => OK

http://care-hhh.web.cern.ch/care-hhh/Intensity%20Limits/intensity-http://care-hhh.web.cern.ch/care-hhh/Intensity%20Limits/intensity-limits.htm limits.htm

scaling laws for magnet and cryogenic cost => 2008scaling laws for magnet and cryogenic cost => 2008

2 summer students+ 1 doctoral studentfor further updates

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W. Scandale & F. Zimmermann Care meeting, Paris, April 9, 2008

recent publications & recent publications & presentationspresentations

S. Hasan, Bent Silicon Crystals for the LHC Collimation: Studies with an Ultrarelativistic Proton Beam, Master Thesis, U of Insubria, CARE-Thesis-07-002

L. Rossi and E. Todesco, Electromagnetic design of superconducting dipoles based on sector coils, submitted to Phys. Rev. ST Accel. Beams 10, CARE-Pub-2007-012

I. Santiago Gonzalez, Loss of Longitudinal Landau Damping in the LHC Injectors, CARE-Note-2007-012-HHH

F. Zimmermann, W.Scandale, Summary of IR07 Workshop, LHCU mtg, 28.11.2007

F. Zimmermann, W.Scandale, Summary of IR07 Workshop, LIUWG mtg, 29.11.2007

F. Zimmermann, W. Scandale, Summary of BEAM'07 Workshop, Summary of IR07 Workshop, PAF meeting, 3.12.2007

L. Bottura, R. Maccaferri, C. Maglioni, V. Parma, G. de Rijk, L. Rossi, W. Scandale, L. Serio, D. Tommasini, Conceptual Design of Superferric Magnets for PS2 , CARE-Note-2007-019-HHH

M. Pivi, Electron Cloud R&D for Future Linear Colliders, CERN, AP Forum, 20 March 2008; M. Pivi, CMAD Simulation Code Status, CERN discussion, 19 March 2008

F. Zimmermann, Status, Schedule and Future of LHC Accelerator, JPS Meeting, Osaka, Kinki University, 24 March 2008

W. Scandale et al, Collimation with Bent Crystals: the H8RD22 Experiment, CARE-Note-2007-???-HHH

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planned AMT workshop planned AMT workshop

• 19-23 May: 19-23 May: CARE-HHH-AMTCARE-HHH-AMT workshop on workshop on Accelerator Accelerator Magnets, Superconductor, Design and Optimization Magnets, Superconductor, Design and Optimization ((WAMSDO’08WAMSDO’08), CERN, 5 days), CERN, 5 days

• Main topics:Main topics:• summary of magnet targets and specifications for future accelerators and summary of magnet targets and specifications for future accelerators and

accelerator upgrades, in particular for the LHC upgrade; accelerator upgrades, in particular for the LHC upgrade;

• advances on low- and high-Tc s.c. materials and cables, with special advances on low- and high-Tc s.c. materials and cables, with special attention to progress in Nb3Sn, low-loss Nb-Ti and coated conductors; attention to progress in Nb3Sn, low-loss Nb-Ti and coated conductors;

• design, optimization and R&D for s.c. magnets and other devices, in design, optimization and R&D for s.c. magnets and other devices, in particular the high field dipoles and quadrupoles for the LHC IR and fast particular the high field dipoles and quadrupoles for the LHC IR and fast cycled synchrotron magnets.cycled synchrotron magnets.

http://indico.cern.ch/conferenceDisplay.py?confId=28832http://indico.cern.ch/conferenceDisplay.py?confId=28832

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APD exchangesAPD exchanges

• 3-week visit by Mauro Pivi to 3-week visit by Mauro Pivi to CERN for CERN for electron-cloud studies electron-cloud studies in March 2008, mostly supported in March 2008, mostly supported by HHH: by HHH: • completion and benchmarking a completion and benchmarking a novel novel

simulation code "CMAD" simulation code "CMAD" for the detailed for the detailed modeling of electron-cloud effects in modeling of electron-cloud effects in LHC &SPS LHC &SPS against simulations by the against simulations by the simpler code "HEADTAIL" considering a simpler code "HEADTAIL" considering a toy model toy model

• setting up of serial and parallel CMAD setting up of serial and parallel CMAD electron-cloud computations for the electron-cloud computations for the actual MAD optics of both LHC and SPSactual MAD optics of both LHC and SPS on on the CERN linux clusterthe CERN linux cluster

• discussions on possible discussions on possible electron-cloud electron-cloud countermeasurescountermeasures for the SPS upgrade, for the SPS upgrade, including the pertinent including the pertinent R&D program R&D program undertaken at undertaken at PEP-IIPEP-II and CESR-TA and CESR-TA

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2007 crystal experiments2007 crystal experiments Seven weeks of CERN H8-SPS runs

goals: test multi-strip crystals, check the effect on electron and positrons,

dry-run for the equipment to be installed in the SPS Participation in crystal collimation experiment at FNALProposal of 2008 test in the CERN-SPS ring Support: CARE-HHH , INTAS-CERN, INFN-NTA,Russian Foundation for Basic Research, CERN AB and AT Departments, FNAL

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2008 gantt chart - 12008 gantt chart - 1

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2008 gantt chart - 22008 gantt chart - 2

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Conclusions Conclusions 2008 HHH program2008 HHH program

• numerous numerous high-impact workshops concluding 5 years high-impact workshops concluding 5 years of HHH activityof HHH activity, preparation of summary report, preparation of summary report

• maintain focused maintain focused efforts in many frontier areasefforts in many frontier areas- crystal collimation, slim magnets, e-cloud suppression, LHC crab cavities, - crystal collimation, slim magnets, e-cloud suppression, LHC crab cavities, beam-beam compensation, novel optics design schemes, fast cycling s.c. beam-beam compensation, novel optics design schemes, fast cycling s.c. magnets, new beam diagnosticsmagnets, new beam diagnostics

• results benefit results benefit global accelerator communityglobal accelerator community- - code repository, s.c. database, intensity limitscode repository, s.c. database, intensity limits

• sustained strong sustained strong dissemination & training effortdissemination & training effort- mutual visits between partner labs, publications, seminars, web pages, - mutual visits between partner labs, publications, seminars, web pages, many summer students and graduate studentsmany summer students and graduate students

h igh energy h igh intensity h adron beams

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