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					                    The ILC - Status & Plans
           Why/what is the ILC?

           The GDE

           The baseline design and R&D efforts

           The path to the RDR

           The EGDE & summary
Brian Foster - Cosener's Forum May 06
                                   Why/what is ILC?

Brian Foster - Cosener's Forum May 06
                                   Why/what is ILC?
         Because radiated synchrotron-radiation power goes like m-5,
         circular e+e- colliders bigger than LEP (the previous
         CERN machine) are uneconomical. We didn’t know how to
         build complementary machines (like Tevatron (p-antip)
         and LEP) when LHC was proposed. Now500 nm – the ILC.
                                                    we do
         The ILC is a linear collider – thus there is no synchrotron
         radiation produced in bending e+e- in a circular orbit. The
                                    1000 nm
         challenges stem from this – in circular machines, the beams
                      FFTB                           50 nm
         pass through each other many times/ second, giving many
         chances for interaction – “luminosity”. In ILC, they pass
         through each other once and then are dumped.
                                        TESLA     5 nm
        The only way to restore the luminosity is to crush the beams
        to a tiny volume so that one pass gives all the particles the
        same chance to interact that many passes gives less dense
Brian Foster - Cosener's Forum May 06
                                        Status of the ILC
      TESLA was the catalyst that in the last four years has moved
      the ILC forwards very rapidly.
      There will only be one machine like this in the world – so
      it is essential that world-wide agreement be obtained. This
      has been in place for ~3 years.
      ECFA report:
      “..the realisation, in as timely a fashion as possible, of a world-wide collaboration to
      construct a high-luminosity e+e- linear collider with an energy range up to at least
      400 GeV as the next accelerator project in particle physics; decisions concerning the
      chosen technology and the construction site for such a machine should be made soon”
      HEPAP report:
      “We recommend that the highest priority of the U.S. program be a high-energy,
      high-luminosity, electron-positron linear collider, wherever it is
      built in the world…. We recommend that the United States prepare to bid
      to host the linear collider, in a facility that is international from the inception.”
       “ACFA urges the Japanese Government to arrange a preparatory budget
        for KEK to pursue an engineering design of the collider, to study site and
       civil engineering, as well as to investigate the process for the globalization.”       4
Brian Foster - Cosener's Forum May 06
                                        Status of the ILC
          In January 2004 the Science Ministers of the OECD met in
          Paris and, following the detailed work of a GSF Consultative
          Group on particle physics that produced a road Map,
          agreed a statement on the Linear Collider: Ministers

          “acknowledged the importance of ensuring access to large-scale research
          infrastructure and the importance of the long-term vitality of high-energy
          physics. They noted the worldwide consensus of the scientific community,
          which has chosen an electron-positron linear collider as the next
          accelerator-based facility to complement and expand on the discoveries
          that are likely to emerge from the Large Hadron Collider currently being
          built at CERN. They agreed that the planning and implementation of
          such a large, multi-year project should be carried out on a global basis,
          and should involve consultations among not just scientists, but also
          representatives of science funding agencies from interested countries.
          Accordingly, Ministers endorsed the statement prepared by the OECD
          Global Science Forum Consultative Group on High-Energy Physics
          (see Appendix).”
Brian Foster - Cosener's Forum May 06
                                        Status of the ILC
       In August 2004, group of “Wise Men”, chaired by B. Barish,
       chose the “cold”, superconducting, RF technology over the
       competing “warm” X-band RF.
        Despite the fact that both US and Asian research had been in
        warm technology, both regions accepted the decision and
        united behind cold technology; now, transition is complete.
       ICFA moved ahead quickly to appoint a Global Design
       Effort (GDE) to transform the technology decision into a
       full Technical Design Report, capable of being presented to
       world governments for a decision to construct.
        B. Barish appointed as GDE director, with three regional
        directors:    M. Nozaki
        BF (Europe), F. Takasaki (Asia), G. Dugan (Americas)
Brian Foster - Cosener's Forum May 06
                                        Status of the ILC

          At end of April, EPP2010 panel produced its report.
          This gave a ringing endorsement for the ILC strategy and
          strong support for the US bidding to host the machine.

          P. Burrows was a member of the EPP2010 committee and
          can give more details at he end of my talk.

Brian Foster - Cosener's Forum May 06
         – The Mission of the GDE

                 • Produce a design for the ILC in 3 stages - BCD,
                   RDR and TDR, that includes a detailed design
                   concept, performance assessments, reliable
                   international costing, an industrialization plan ,
                   siting analysis, as well as detector concepts and

                 • Coordinate worldwide prioritized proposal driven
                   R & D efforts (to demonstrate and improve the
                   performance, reduce the costs, attain the required
                   reliability, etc.)
Brian Foster - Cosener's Forum May 06
                                        GDE – Staffing
      Chris Adolphsen, SLAC                     Tom Markiewicz, SLAC
      Jean-Luc Baldy, CERN                                     New Members
                                                David Miller, Univ College of London
      Philip Bambade, LAL, Orsay               Peter Garbincius (FNAL)
                                                Shekhar Mishra, Fermilab
      Barry Barish, Caltech                     Youhei Morita, KEK
      Wilhelm Bialowons, DESY
                                               Marc Ross (SLAC)
                                                Olivier Napoly, CEA-Saclay
      Grahame Blair, Royal Holloway            Bill Willis (Columbia)
                                                Hasan Padamsee, Cornell University
      Jim Brau, University of Oregon            Carlo Pagani, DESY
                                               Andre Seryi (SLAC)
      Karsten Buesser, DESY                     Nan Phinney, SLAC
      Elizabeth Clements, Fermilab             John Sheppard (SLAC)
                                                Dieter Proch, DESY
      Michael Danilov, ITEP                    Ewan Patterson (SLAC)
                                                Pantaleo Raimondi, INFN
      Jean-Pierre Delahaye, CERN,               Tor Raubenheimer, SLAC
      Gerald Dugan, Cornell University          Francois Richard, (KEK)
                                               Maseo KurikiLAL-IN2P3
      Atsushi Enomoto, KEK                     Kiyoshi Kubo (KEK)
                                                Perrine Royole-Degieux, GDE/LAL
      Brian Foster, Oxford University
      Warren Funk, JLAB
                                                Kenji Saito,
                                               NobuhiroKEK   Terunuma (KEK)
                                                Daniel Schulte, CERN
      Jie Gao, IHEP                            Norihito Ohuchi (KEK)
                                                Tetsuo Shidara, KEK
      Terry Garvey, LAL-IN2P3                   Sasha Skrinsky, Budker Institute
                                               Susanna Guiducci (INFN)
      Hitoshi Hayano, KEK                       Fumihiko Takasaki, KEK
      Tom Himel, SLAC                          Deepa Angal-Kalinin (CCLRC)
                                                Laurent Jean Tavian, CERN
      Bob Kephart, Fermilab                    G. Shirkov (JINR, Dubna)
                                                Nobu Toge, KEK
      Eun San Kim, Pohang Acc Lab               Nick Walker, DESY
      Hyoung Suk Kim, Kyungpook Nat’l Univ     Totals
                                                Andy Wolski, LBL
      Shane Koscielniak, TRIUMF                 Hitoshi Yamamoto, Tohoku Univ
      Vic Kuchler, Fermilab
                                                Kaoru Yokoya, KEK
      Lutz Lilje, DESY                         Europe             24
                                                49 members
Brian Foster - Cosener's Forum May 06
                                               Asia               16                   9
                                   ILC Parameters
   • Ecm adjustable from 200 – 500 GeV
   • Luminosity ∫Ldt = 500 fb-1 in 4 years
   • Ability to scan between 200 and 500 GeV
   • Energy stability and precision below 0.1%
   • Electron polarization of at least 80%

• The machine must be upgradeable to 1 TeV

Brian Foster - Cosener's Forum May 06
                                        BCD overview
          The ILC Baseline Design was completed in
          December 2005:

          Process overseen by ILC Executive -
          B. Barish, G. Dugan, BF, F. Takasaki,
          T. Raubenheimer, N. Walker, K.Yokoya.
           E. Elsen will give details.
Brian Foster - Cosener's Forum May 06
                                        Test facilities
           TTF exists at
           SMTF (FNAL),
           STF (KEK):

          Stimulate SC
          industry in the
          regions -
          collaborate on
          SC technology
Brian Foster - Cosener's Forum May 06
                                        Test facilities
           ATF @ KEK has been a great success. Time
           for further improvement:

Brian Foster - Cosener's Forum May 06
                                        Test facilities
           Extend ATF to give FF prototype - squeeze
           down to 35 nm and stabilise to 2 nm.

Brian Foster - Cosener's Forum May 06

• Launch of New ILC
  Website @ Snowmass
• “One Stop Shopping”
   – electronic data
     management system
     (EDMS), news, calendar
     of events, education and

 Brian Foster - Cosener's Forum May 06
Brian Foster - Cosener's Forum May 06
                                 Next steps for GDE

        BCD is complete. In the next phase,
        RDR will take forward the BCD, refine the
        design and in particular gather
        industrialisation data in order to form the
        basis for reliable cost estimate with the RDR.

        There are 3 new boards: Change Control
        Board; Global R&D Board; Design & Cost
Brian Foster - Cosener's Forum May 06
                                            Next steps
                           ICFA                                         FALC

                                        ILCSC                    FALC
                                                              Resource Board

    MAC                                            GDE

                                           Executive Committee

         GDE                                      GDE                          GDE
      R & D Board                          Change Control Board          Design Cost Board

                                      Global                        RDR
                                    R&D Program                 Design Matrix
Brian Foster - Cosener's Forum May 06
                                        Change control
         The board has overseen the consolidation of
         the baseline design and the production of a
         Word document containing all information.
         Dealing with requests for changes to baseline
         as further work and R&D is completed.
         Careful methodology developed - categorise
         the importance of the change, assign
         number of board members to review it
         depending on importance.
         During process, all GDE members can
         comment on proposed change. Dealing with
         ~ 1 request/week.
Brian Foster - Cosener's Forum May 06
                                        Other boards
         Design & cost board produced a (very)
         detailed programme of work to lead us
         towards the most important RDR deliverable
         - a believable, robust and affordable costing;
         a preliminary, non-public version will be
         available by the summer Vancouver meeting.
          R&D board has to try to impose a structure
          and discipline on inherently chaotic system
          - R&D - eliminating wasteful duplication
          while preserving & enhancing necessary
          duplication.                                  20
Brian Foster - Cosener's Forum May 06
                                 Next steps for GDE
           The RDR will be produced using a matrix
           structure of “area systems” and “technical
           systems” to account for the project structure.

Brian Foster - Cosener's Forum May 06
                                 Next steps for GDE
              The WBS

Brian Foster - Cosener's Forum May 06
                                        Next steps

        The day-to-day work of constructing the
        RDR will be supervised by an RDR board
        chaired by N. Walker (DESY) which will
        meet every week by telephone and report to
        the ILC Executive Committee.

         The meetings are going well and detailed
         progress is being made.

Brian Foster - Cosener's Forum May 06
                                        MAC report
          The first meeting of the Machine Advisory
          Committee, which reports to ILCSC, took
          place last month in Fermilab.
          Generally they were very positive and
          impressed by the scale of the progress that
          has been made. They had concerns about
          the current accelerating gradient spec. and
          how R&D could be done to achieve it,
          about communications with the
          experimenters and also about the
          coordination of world-wide R&D.               24
Brian Foster - Cosener's Forum May 06
                                        Detectors - SiD

Brian Foster - Cosener's Forum May 06
                                        Detectors - LDC

Brian Foster - Cosener's Forum May 06
                                        Detectors - GLD

Brian Foster - Cosener's Forum May 06
                          Detectors - 4th concept
     Design philosophy:

    • Pixel Vertex (PX)                 5-micron pixels
    • TPC (like GLD or LDC)
      with silicon strips on outer radius
    • Crystal dual-readout ECAL
    • Triple-readout fiber HCAL:
      scintillation/Cerenkov/neutron (new)
    • Muon dual-solenoid geometry (new),
      with ATLAS drift tubes.

Brian Foster - Cosener's Forum May 06
                                        European GDE
           European GDE meets about every 6 months.
           Discusses obviously regional issues:
           - how to get more resources from inside
           Europe, in particular the EU;
           - regional outreach - Europe has particular
           difficulties & challenges here.
           The European GDE does NOT discuss the
           technical issues of the BCD or take up
           European positions on them - these are
           matters for the full GDE.
Brian Foster - Cosener's Forum May 06
                                        European GDE
           Two meetings in CERN to explore in
           particular the similarity between LHC and
           ILC cryogenics and to utilise CERN
           expertise, particularly in civil engineering.

          Very encouraged by the great interest on
          the ground in CERN in the project, the
          very constructive and positive meetings
          we have had and the growing involvement
          of CERN staff in the ILC.
Brian Foster - Cosener's Forum May 06
                                        European GDE
           European Outreach group re-established at
           Orsay meeting in January. B. Warmbein
           joined the team recently as PA to EGDE
           director, based at DESY. Meeting held in
           DESY just before Easter.
           EGDE director’s advisory group also meets
           regularly. Discussed plans for FP7 initiative
           for European cryogenic RF development
           centre based probably at one of big labs.
           LoI for such a facility was input to CERN
           Council Strategy group.
Brian Foster - Cosener's Forum May 06
                                        European GDE

           There is an EGDE meeting in DESY next
           week to discuss the shape of the FP7 proposal.
           It will hear about European cryogenic RF
           development centre, about possible
           continuation of some current FP6
           activities, the use of HERA as a prototype
           damping ring, etc.

Brian Foster - Cosener's Forum May 06
                                        European GDE

          EGDE director’s advisory group also meets
          regularly to advise on strategy, particularly
          for R&D.

          It is clear that world-wide coordination of
          R&D is going to be an important issue in
          the future and we need to think about how
          this can be achieved; Europe has particular
          features that make this a challenge.
Brian Foster - Cosener's Forum May 06
              GDE Plan & Schedule
2005   2006     2007    2008     2009     2010

       Global Design Effort                                   Project

        Baseline configuration
                   Reference Design     Physics; CLIC
                                        Technical Design

                                                             ILC R&D Program

                                        Bids to Host; Site Selection;
                                                           International Mgmt
                                           Next steps
           Jan                                       July                       Dec

Frascati                            Bangalore     Vancouver             Valencia

Freeze Configuration
Organize for RDR
                                                Review Initial
                                                Design / Cost         Review Final
                                                                      Design / Cost
                                                                     RDR Document

                                                Design and Costing                 Preliminary
Brian Foster - Cosener's Forum May 06
       The ILC is making excellent progress and
       the GDE is well established.

      Producing the RDR & the cost estimate by the
      end of the year is going to be very tough - we
      need all the help & expertise that we can get.

        This is a very exciting and challenging
        enterprise that is vital for the future of world
        particle physics.
Brian Foster - Cosener's Forum May 06

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