HHH

CARE-HHH progress 2nd quarter 2006: 

CARE-HHH progress 2nd quarter 2006 Francesco Ruggiero, Walter Scandale, Frank Zimmermann (substituting for F.R.) Supported by the European Community-Research Infrastructure Activity under the FP6 “Structuring the European Research Area” programme (CARE, contract number RII3-CT-2003-506395).

Slide2: 

CARE-HHH Network: 3 work packages WP1: Advancements in Accelerator Magnet Technologies (AMT) coordinated by L. Rossi (CERN) and L. Bottura (CERN) keywords: stability and quench limit of LHC insertion magnets, pulsed magnets for LHC and GSI accelerator complex upgrade, magnets for booster ring, high field magnet design, optimisation of the overall cost WP2: Novel Methods for Accelerator Beam Instrumentation (ABI) coordinated by H. Schmickler (CERN) and K. Wittenburg (DESY) keywords: tools and diagnostic systems for luminosity, wire for beam-beam compensation, advanced transverse beam diagnostics, feedback loops for orbit, chromaticity and coupling, advanced beam halo diagnostics, remote diagnostics and maintenance of instrumentation WP3: Accelerator Physics and synchrotron Design (APD) coordinated by F. Ruggiero (CERN) and F. Zimmermann (CERN) keywords: Interaction Region design for LHC luminosity upgrade, optics design for booster synchrotrons, impedance calculations, structured list of intensity limits, electron cloud effects, beam measurements and advanced theoretical studies (including collimation, halo formation, and loss mechanisms) http://care-hhh.web.cern.ch/CARE-HHH/

highlights: 

highlights PhD student & summer student working on the database for superconducting cable and magnets in the frame of WP1 (AMT) WP3 (APD) laid groundwork for limiting the options of LHC IR upgrade scenarios and helped to determine basic parameters for the FAIR project at GSI and upgraded CERN accelerator complex (PS+, PS2 and SPS+) CARE-sponsored CERN-GSI bilateral meeting end of March joint long-range beam-beam experiments at BNL RHIC & common simulation effort at 5 laboratories CARE supported meeting organized by INFN on the use of crystals in HEP and particle accelerators numerous invited or contributed CARE-HHH presentations at several workshops & conferences (RPIA2006, EPAC’06, HB’06, Channeling’06) advances on detector-integrated dipoles or quadrupoles for an LHC upgrade, optics designs for a new LHC interaction-region, crab-cavity options, pulsed SC magnets, magnets for booster rings, optics of fast cycling injectors, beam instrumentation, and structured list of beam intensity limits extension of web-base code repository and support for code benchmarking (summer student) in the frame of WP3 (APD) launched experiment in the CERN-SPS H8 area to explore the possibility of crystal collimation, with the joint support of CARE and INTAS.

Slide4: 

March 2006: Invited contributions to the RPIA2006 Workshop organized by KEK. F. Zimmermann discussed Possible Uses of Rapid Switching Devices and Induction RF for an LHC Upgrade and convened a working group on Assessment of the Wire Lens at LHC from the current Pulse Power Technology Point of View; U. Dorda discussed Simulation of LHC Long-Range Beam-Beam Compensation with DC and Pulsed Wires CARE-HHH-APD mini-Workshop on Crystal Channeling, CERN, Geneva, Switzerland, 9–10 March 2006. CARE-HHH-APD CERN-GSI bi-lateral working meeting on Collective Effects–Coordination of Theory and Experiments, GSI, Darmstadt, Germany, 30–31 March 2006. CARE-HHH-AMT Workshop on Accelerator Magnet Design and Optimization (WAMDO), CERN, Geneva, Switzerland, 3–6 April 2006 April 2006: Hermann Schmickler took part in the US-LARP Collaboration Meeting, LBNL,  Berkeley, CA April 2006: Calculation of wake field for LHC electron-cloud clearing electrodes (design of P. McIntyre/Texas A&M within CARE-HHH) by W. Bruns May/June 2006: Invited contributions to the ICFA HB2006 Workshop jointly organized by KEK& JAEA. F. Zimmermann presented LHC Upgrade Options and CARE-HHH Activities and also Electron-Cloud Benchmarking & CARE-HHH Codes CARE-HHH activities in detail, March-June

Slide5: 

June 2006: Contributions to EPAC 2006 (Edinburgh, U.K.): Papers of W. Scandale, LHC Luminosity and Energy Upgrades [invited overview of CARE-HHH]; E. Laface, R. Ostojic, W. Scandale, D. Tommasini, C. Santoni, Interaction Region with Slim Quadrupoles [IR upgrade option]; R. de Maria, O.S. Brüning, P. Raimondi, LHC IR Upgrade: A Dipole First Option with Local Chromaticity Correction; [IR upgrade option]; R. de Maria, O.S. Brüning, A Low Gradient Triplet Quadrupole Layout Compatible with NbTi Magnet Technology and Beta*=0.25m [IR upgrade option]; J.-P. Koutchouk, Investigations of the Parameter Space for the LHC Luminosity Upgrade [attempt at LHC upgrade parameter optimization]; J.-P. Koutchouk, G. Sterbini, An Early Beam Separation Scheme for the LHC [IR upgrade option]; Faus-Golfe J. Resta-López, F. Zimmermann, Non-linear Collimation in Linear and Circular Colliders [CERN-Valencia collaboration within CARE-HHH, invited presentation addressing a way to overcome the LHC intensity limitation]; J. Resta-López, R.W. Assmann, S. Redaelli, J. Resta-López, G. Robert-Demolaize, D. Schulte, F. Zimmermann, A. Faus-Golfe, An Alternative Nonlinear Collimation System for the LHC [details on the previous scheme]; CARE-HHH activities in detail, June

Slide6: 

June 2006: Further contributions to EPAC 2006 (Edinburgh, U.K.): Papers of W. Fischer, R. Calaga, U. Dorda, J.-P. Koutchouk, F. Zimmermann, A.C. Kabel, J. Qiang,V.H. Ranjibar, T. Sen, J. Shi, Observation of the Long-range Beam-beam Effect in RHIC and Plans for Compensation [collaboration of CARE-HHH with US-LARP] F. Zimmermann et al, Accelerator Physics Code Web Repository [activity triggered by CARE-HHH performed in large international collaboration]; E. Benedetto, G. Franchetti, G. Rumolo, F. Zimmermann, Resonance Trapping, Halo Formation and Incoherent Emittance Growth due to e- Cloud [CERN-GSI collaboration within CARE-HHH]; T. Demma, S. Petracca, F. Ruggiero, G. Rumolo, F. Zimmermann, Maps for Electron Clouds: Application to LHC [collaboration of CERN and U. Sannio within CARE-HHH]; U. Iriso, G. Rumolo, Benchmarking Electron Cloud Data with Computer Simulation Codes [related to CARE-HHH code benchmarking activity]; G. Rumolo, E. Métral, E.N. Shaposhnikova, Simulation Study on the Energy Dependence of the TMCI Threshold in the CERN-SPS [exploring optimum energy of new synchrotrons] CARE-HHH activities in detail, June-August

Slide7: 

July&August’06: Extension of web based code repository included in the CARE-HHH-APD work packages and support of code benchmarking activities (summer student C. Lapoire supervised by F. Zimmermann); July 2006: Publication of the proceedings of 2nd CARE-HHH-APD Workshop “LHC-LUMI-05” as CARE-Conf-06-014-HHH July 2006: International Conference co-organized by CARE-HHH-APD on Charged and Neutral Particles Channeling Phenomena (Channeling 2006),Frascati, Italy. Invited presentation by W. Scandale on Perspectives for Crystal Collimation. July and August 2006: preparation of the CARE-HHH-APD Workshop on “Towards a Roadmap for the Upgrade of the LHC and GSI Accelerator Complex (LHC-LUMI-06)”, IFIC, Valencia, 16/10-20/10/2006: http://care-hhh.web.cern.ch/CARE-HHH/LUMI-06 July and August 2006: preparation of the CARE-HHH-AMT: LER – Workshop on the Low Energy Ring study, CERN 11/10-12/10/2006: http://care-hhh.web.cern.ch/CARE-HHH/LUMI-06 July and August 2006: 1st and 2nd meeting of the LHC crab cavity study group (see minutes http://cern-ab-bblr.web.cern.ch/cern-ab-bblr/Crab-Cavity/crabcavity.htm ). Sept.2006: start preparation of CARE-HHH & EUROTeV Mini-Workshop ECL2; Technological Solutions to e-Cloud Problem, CERN, February’07 CARE-HHH activities in detail, July-September

Slide8: 

Planning of Future CARE-HHH Workshops in 2006 - 1 (1) CARE-HHH-APD Workshop on “Towards a Roadmap for the Upgrade of the LHC and GSI Accelerator Complex (LHC-LUMI-06)”, IFIC, Valencia, 16./10.-20.10/2006: http://care-hhh.web.cern.ch/CARE-HHH/LUMI-06 . Topics: Establish a forward looking ‘baseline’ scenario for the LHC luminosity upgrade; agree on and apply suitable criteria for the performance rating; select optimum LHC bunch spacing and bunch spacing; determine whether long bunches are a viable back-up option; explore possibilities of detector integrated dipoles and quadrupoles; discuss prospects for feedback in coast, crab cavities, collimation and machine protection at an LHC upgrade Scientific rating of alternative scenarios for the upgrade of the CERN accelerator complex and a review of the performance of FAIR synchrotrons, including lattice, RF, beam impedance, collimation, and losses for PS+, PS2, SPS+ and SIS100/300; the workshop outcome will be a structured list of intensity limits, possible methods to overcome them, and a list of parameters for pulsed s.c. dipole magnets leading to a common R&D programme at CERN and GSI.

Slide9: 

Planning of Future CARE-HHH Workshops in 2006 - 2 (2) 4th CARE-HHH-ABI topical workshop, September 28/29. 2006, in Luebeck Topics: Specific beam instrumentation technology

Slide10: 

Planning of Future CARE-HHH Workshops in 2006 - 3 (3) CARE-HHH-AMT Workshop on a Low Energy Ring (LER) in the LHC tunnel as main injector, CERN, 11/10-12/10/2006: https://ler06.web.cern.ch/LER06/ . Topics: Explore general layout of LER and single out parts which may constitute a basic impediment to its viability; provide a frame where the proponents of such an option can meet with experts of the CERN accelerator complex and establish a common understanding of the path ahead; the workshop should try to give a recommendation in terms of feasibility and time scale of such a project

Slide11: 

Planning of Future CARE-HHH Workshops in 2007 (4) CARE-HHH-APD & EUROTEV-WP3 Joint Mini-Workshop on Technological Solutions to the Electron-Cloud Problem (ECL2), CERN, February 2007 Topics: Explore electron cloud effects and technological consequences Instabilities and lifetime degradation for PS+, PS2, SPS(+), and LHC High and low-impedance clearing electrodes Clearing electrodes on enamel basis Getter coatings Other surface treatments

Slide12: 

CARE-HHH web based code repository & code benchmarking http://oraweb.cern.ch:9000/pls/hhh/code_website.startup web site with LHC IR upgrade optics http://care-hhh.web.cern.ch/care-hhh/SuperLHC_IRoptics/IRoptics.html progress examples R. Tomas et al R.. Basset, C. Lapoire, F.Z., + community

more progress examples : 

more progress examples crab cavity design R. Calaga, R. Tomas J. Tuckmantel spoke crab cavity?

still more progress: Flat Beam Optics : 

still more progress: Flat Beam Optics Triplet beam screen orientation for H/V crossing Effect of decreasing the beam aspect ratio at the IP (and increasing the vert. X-angle) Effect of increasing the beam aspect ratio at the IP (and decreasing the vert. X-angle) In all cases, the average b-b separation is set to 9.5*sx/y (for H/V crossing) Find optimum between beam-screen and beam aspect ratio S. Fartoukh can already push luminosity of nominal LHC by 10-20% ↔HHH spin-off

documents, subtask status, milestones, deliverables & gantt tableson following slides: 

documents, subtask status, milestones, deliverables & gantt tables on following slides

Slide16: 

list of HHH documents issued in 2006

Slide17: 

list of HHH documents issued in 2006 cont’d

Slide18: 

: Status of the lowest Sub tasks level in the WP which are supposed to have started according to the MS project breakdown in Annex 1

Slide19: 

: Status of the lowest Sub tasks level in the WP which are supposed to have started according to the MS project breakdown in Annex 1

Slide20: 

Status with respect to the interim reports and deliverables to be done in 2006 according to MS project breakdown

Slide21: 

Status with respect to the interim reports and deliverables to be done in 2006 according to MS project breakdown

Slide22: 

Gantt table of the HHH Network progress in 2006 and expected progress in 2007

Slide23: 

Gantt table of the HHH Network progress in 2006 and expected progress in 2007

Slide24: 

HHH highlight on crystal collimation - yesterday’s result!

crystal channeling & reflection demonstrated in SPS H8 -12.09.2006! technology and experiment prepared with CARE support: 

crystal channeling & reflection demonstrated in SPS H8 -12.09.2006! technology and experiment prepared with CARE support Si-strip detector 65 m behind crystal 10-mrad reflection over 1 mm distance ↔ 20000 T field! >99% efficiency channeled reflected unperturbed or scattered

conclusions: 

conclusions HHH work internationally recognized HHH gained initiative in many areas and launched several novel activities at the forefront of accelerator R&D HHH results benefit full accelerator community CARE-HHH is “high-return investment for Europe” workshops in fall’06 & winter ‘07 will be exciting