H igh Energy H igh Intensity H adron Beams

1. Network coordinated by W. Scandale and F. Zimmermann High EnergyHigh IntensityHadron Beams http://care-hhh.web.cern.ch/care-hhh/ CARE meeting, Paris, April 09, 2008

2. CARE-HHH network Coordinate and integrate the activities of the accelerator and particle physics communities in a worldwide context, towards achieving superior High-Energy High-Intensity Hadron 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 Accelerator Magnet Technologies (AMT) WP2: Novel Methods for Accelerator Beam Instrumentation (ABI) WP3: Accelerator Physics and synchrotron Design (APD) Participating institutes: CEA, CERN, CSIC-CIEMAT, CCLRC, DESY, GSI, INFN, PSI, TEU, WUT Associated institutes: CRPP, ENEA, TUBE, ESRF, UPSA, FZK, TEMF, US-LARP (BNL,FNAL,LBNL,SLAC), JINR, IHEP, KEK Additional collaborations: Texas A&M U., U. Geneva, U. Bologna CARE meeting, Paris, April 9, 2008

3. activities in 2008 • Planned 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-PengSun,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 CARE meeting, Paris, April 9, 2008

4. workshops since CARE07 • 19-20 November: CARE-HHH-AMT workshop onHeat Generation and Heat Transfer in Superconducting Magnets (THERMOMAG’07), Paris, 2 days (about 70 participants) • minimizing and evacuating heat in the next generation of superconducting 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 injector chain upgrade; • identify the state of the art on • (1) cooling techniques (fluids and regimes), • (2) heat transfer mechanisms, • (3) modeling of heat transfer from coils to cooling system, • (4) heat transfer experiments; identify a common set of thermal design criteria http://care-hhh.web.cern.ch/CAREHHH/Workshops/ProgThermomag.htm CARE meeting, Paris, April 9, 2008

5. workshops since CARE07 • 5th CARE-HHH-ABIworkshop on Schottky, Tune and Chromaticity Diagnostic (with real time feedback)(about 30 participants),  Chamonix, France, 11 - 13 December 2007 • Joint BNL/CARE-HHH/US-LARPworkshop on LHC crab cavities (LHC-CC08), BNL, 25-26 February 2008 (about 30 participants) - 3 persons attended with HHH support http://adweb.desy.de/mdi/CARE/chamonix/abi_workshop_2007.htm http://indico.cern.ch/conferenceDisplay.py?confId=24200 CARE meeting, Paris, April 9, 2008

6. LHC-CC08 joint BNL/CARE-HHH/US-LARP workshop, BNL, 25-26 Feb. 2008 use 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 K. Oide B. Palmer R. Calaga

7. Deflecting Cavity Workshop ICFA Beam Dynamics Mini-Workshop on Deflecting/Crabbing Cavity Applications in Accelerators April 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 CARE meeting, Paris, April 9, 2008

8. Mulcopim 2008 international workshop on Multipactor,Corona,&Passive Intermodulation Valencia, 24-26 Sept.’08, organized by European Space Agency (ESA) • 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: http://www.cfp.upv.es/mulcopim08 •  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 CARE meeting, Paris, April 9, 2008

9. Channeling 2008 international 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 topics: • 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) CARE meeting, Paris, April 9, 2008

10. deliverables & milestones • deliverables • 2004: HHH & HHH-APD web site => OK • 2005: creation of first web-based beam dynamics code repository => OK http://oraweb.cern.ch:9000/pls/hhh/code_website.startup • 2007: web based database for s.c. cables and magnets concluded http://sdb.web.cern.ch/sdb => OK • milestones: • web reference for IR optics => OKhttp://care-hhh.web.cern.ch/care-hhh/SuperLHC_IRoptics/IRoptics.html • booster synchrotron optics => in progress • structured list of intensity limits => OK http://care-hhh.web.cern.ch/care-hhh/Intensity%20Limits/intensity-limits.htm • scaling laws for magnet and cryogenic cost => 2008 2 summer students + 1 doctoral student for further updates CARE meeting, Paris, April 9, 2008

11. recent publications & presentations Care meeting, Paris, April 9, 2008

12. planned AMT workshop • 19-23 May: CARE-HHH-AMT workshop onAccelerator Magnets, Superconductor, Design and Optimization (WAMSDO’08), CERN, 5 days • Main topics: • summary of magnet targets and specifications for future accelerators and accelerator upgrades, in particular for the LHC upgrade; • advances on low- and high-Tcs.c. materials and cables, with special 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 particular the high field dipoles and quadrupoles for the LHC IR and fast cycled synchrotron magnets. http://indico.cern.ch/conferenceDisplay.py?confId=28832 CARE meeting, Paris, April 9, 2008

13. APD exchanges • 3-week visit by Mauro Pivi to CERN for electron-cloud studies in March 2008, mostly supported by HHH: • completion and benchmarking a novel simulation code "CMAD" for the detailed modeling of electron-cloud effects in LHC &SPS against simulations by the simpler code "HEADTAIL" considering a toy model • setting up of serial and parallel CMAD electron-cloud computations for the actual MAD optics of both LHC and SPS on the CERN linux cluster • discussions on possible electron-cloud countermeasures for the SPS upgrade, including the pertinent R&D program undertaken at PEP-II and CESR-TA CARE meeting, Paris, April 9, 2008

14. 2007 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 FNAL • Proposal 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 CARE meeting, Paris, April 9, 2008

15. 2008 gantt chart - 1 Care meeting, Paris, April 9, 2008

16. 2008 gantt chart - 2 Care meeting, Paris, April 9, 2008

17. Conclusions 2008 HHH program • numerous high-impact workshops concluding 5 years of HHH activity, preparation of summary report • maintain focused efforts in many frontier areas • - crystal collimation, slim magnets, e-cloud suppression, LHC crab cavities, beam-beam compensation, novel optics design schemes, fast cycling s.c. magnets, new beam diagnostics • results benefit global accelerator community • - code repository, s.c. database, intensity limits • sustained strong dissemination & training effort • - mutual visits between partner labs, publications, seminars, web pages, many summer students and graduate students CARE meeting, Paris, April 9, 2008