Brian Foster - Cosener's Forum May 06 1 The ILC - Status & Plans Why/what is the ILC? The GDE The baseline design and R&D efforts The path to the RDR Detectors

Brian Foster - Cosener's Forum May 06

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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

Detectors

The EGDE & summary


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Why/what is ILC?


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Because radiated synchrotron-radiation power goes like m-5,circular e+e- colliders bigger than LEP (the previousCERN machine) are uneconomical. We didn’t know how to build complementary machines (like Tevatron (p-antip) and LEP) when LHC was proposed. Now we do – the ILC.

Why/what is ILC?

The ILC is a linear collider – thus there is no synchrotronradiation produced in bending e+e- in a circular orbit. Thechallenges stem from this – in circular machines, the beamspass through each other many times/ second, giving manychances for interaction – “luminosity”. In ILC, they passthrough each other once and then are dumped.

The only way to restore the luminosity is to crush the beamsto a tiny volume so that one pass gives all the particles thesame chance to interact that many passes gives less densebunches.

SLC

FFTB

TESLA

500 nm

50 nm

5 nm

1000 nm


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Status of the ILCTESLA was the catalyst that in the last four years has movedthe ILC forwards very rapidly.There will only be one machine like this in the world – soit is essential that world-wide agreement be obtained. Thishas 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 thechosen 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 isbuilt 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: “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.”


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Status of the ILCIn 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).”


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Status of the ILC

In August 2004, group of “Wise Men”, chaired by B. Barish,chose the “cold”, superconducting, RF technology over thecompeting “warm” X-band RF.

Despite the fact that both US and Asian research had been in warm technology, both regions accepted the decision andunited behind cold technology; now, transition is complete.

ICFA moved ahead quickly to appoint a Global DesignEffort (GDE) to transform the technology decision into afull Technical Design Report, capable of being presented toworld governments for a decision to construct.

B. Barish appointed as GDE director, with three regionaldirectors:BF (Europe), F. Takasaki (Asia), G. Dugan (Americas)

M. Nozaki


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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.


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GDE

– 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 scope.

• Coordinate worldwide prioritized proposal driven R & D efforts (to demonstrate and improve the performance, reduce the costs, attain the required reliability, etc.)


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GDE – StaffingChris Adolphsen, SLACJean-Luc Baldy, CERNPhilip Bambade, LAL, OrsayBarry Barish, CaltechWilhelm Bialowons, DESYGrahame Blair, Royal HollowayJim Brau, University of OregonKarsten Buesser, DESYElizabeth Clements, FermilabMichael Danilov, ITEPJean-Pierre Delahaye, CERN, Gerald Dugan, Cornell UniversityAtsushi Enomoto, KEKBrian Foster, Oxford UniversityWarren Funk, JLABJie Gao, IHEPTerry Garvey, LAL-IN2P3Hitoshi Hayano, KEKTom Himel, SLACBob Kephart, FermilabEun San Kim, Pohang Acc LabHyoung Suk Kim, Kyungpook Nat’l UnivShane Koscielniak, TRIUMFVic Kuchler, FermilabLutz Lilje, DESY

Tom Markiewicz, SLACDavid Miller, Univ College of LondonShekhar Mishra, FermilabYouhei Morita, KEKOlivier Napoly, CEA-SaclayHasan Padamsee, Cornell UniversityCarlo Pagani, DESYNan Phinney, SLACDieter Proch, DESYPantaleo Raimondi, INFNTor Raubenheimer, SLACFrancois Richard, LAL-IN2P3Perrine Royole-Degieux, GDE/LALKenji Saito, KEKDaniel Schulte, CERNTetsuo Shidara, KEKSasha Skrinsky, Budker InstituteFumihiko Takasaki, KEKLaurent Jean Tavian, CERNNobu Toge, KEKNick Walker, DESYAndy Wolski, LBLHitoshi Yamamoto, Tohoku UnivKaoru Yokoya, KEK

49 members

New MembersPeter Garbincius (FNAL)Marc Ross (SLAC)Bill Willis (Columbia)Andre Seryi (SLAC)John Sheppard (SLAC)Ewan Patterson (SLAC)Maseo Kuriki (KEK)Kiyoshi Kubo (KEK)Nobuhiro Terunuma (KEK)Norihito Ohuchi (KEK)Susanna Guiducci (INFN)Deepa Angal-Kalinin (CCLRC)G. Shirkov (JINR, Dubna)

TotalsAmericas 23Europe 24Asia 16


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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


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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.


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Test facilities

TTF exists at DESY, SMTF (FNAL), STF (KEK):

Stimulate SCindustry in theregions -collaborate onSC technology


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Test facilities

ATF @ KEK has been a great success. Timefor further improvement:


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Test facilities Extend ATF to give FF prototype - squeezedown to 35 nm and stabilise to 2 nm.


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ILCCommunications

• Launch of New ILC Website @ Snowmass

www.linearcollider.org

• “One Stop Shopping”– electronic data

management system (EDMS), news, calendar of events, education and communication


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Next steps for GDE

BCD is complete. In the next phase, RDR will take forward the BCD, refine thedesign 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 ControlBoard; Global R&D Board; Design & CostBoard.


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Next steps ICFA FALC

FALC Resource Board

ILCSC

GDEDirectorate

GDEExecutive Committee

GlobalR&D Program

RDR Design Matrix

GDEChange Control Board

GDEDesign Cost Board

GDER & D Board

MAC


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Change control The board has overseen the consolidation of the baseline design and the production of aWord document containing all information. Dealing with requests for changes to baseline as further work and R&D is completed. Careful methodology developed - categorisethe importance of the change, assignnumber of board members to review itdepending on importance. During process, all GDE members can comment on proposed change. Dealing with~ 1 request/week.


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Other boards Design & cost board produced a (very)detailed programme of work to lead ustowards 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 structureand discipline on inherently chaotic system- R&D - eliminating wasteful duplication while preserving & enhancing necessary duplication.


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Next steps for GDE The RDR will be produced using a matrixstructure of “area systems” and “technicalsystems” to account for the project structure.


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Next steps for GDE The WBS


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Next steps

The meetings are going well and detailedprogress is being made.

The day-to-day work of constructing theRDR will be supervised by an RDR boardchaired by N. Walker (DESY) which willmeet every week by telephone and report tothe ILC Executive Committee.


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MAC report

Generally they were very positive and impressed by the scale of the progress that has been made. They had concerns aboutthe 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.

The first meeting of the Machine AdvisoryCommittee, which reports to ILCSC, tookplace last month in Fermilab.


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Detectors - SiD


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Detectors - LDC


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Detectors - GLD


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Detectors - 4th concept

• 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.

Design philosophy:


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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 particulardifficulties & challenges here.

The European GDE does NOT discuss thetechnical issues of the BCD or take up European positions on them - these arematters for the full GDE.


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European GDE

Two meetings in CERN to explore in particular the similarity between LHC and ILC cryogenics and to utilise CERNexpertise, particularly in civil engineering.

Very encouraged by the great interest onthe ground in CERN in the project, thevery constructive and positive meetingswe have had and the growing involvementof CERN staff in the ILC.


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European GDE European Outreach group re-established atOrsay meeting in January. B. Warmbein joined the team recently as PA to EGDE director, based at DESY. Meeting held inDESY just before Easter.

EGDE director’s advisory group also meetsregularly. 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.


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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 FP6activities, the use of HERA as a prototypedamping ring, etc.


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European GDE

EGDE director’s advisory group also meetsregularly to advise on strategy, particularlyfor R&D.

It is clear that world-wide coordination ofR&D is going to be an important issue inthe future and we need to think about howthis can be achieved; Europe has particularfeatures that make this a challenge.

GDE Plan & Schedule

2005 2006 2007 2008 2009 2010

Global Design Effort Project

Baseline configuration

Reference Design

ILC R&D Program

Technical Design

Bids to Host; Site Selection;

International Mgmt

LHCPhysics; CLIC


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Next steps Jan July Dec

Freeze ConfigurationOrganize for RDR

Bangalore

Review Design/Cost Methodology

Review InitialDesign / Cost Review Final

Design / CostRDR Document

Design and Costing PreliminaryRDR

Released

Frascati Vancouver Valencia


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Summary

The ILC is making excellent progress and the GDE is well established.

Producing the RDR & the cost estimate by theend of the year is going to be very tough - weneed 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.

Documents

Brian Foster - Cosener's Forum May 06 1 The ILC - Status & Plans Why/what is the ILC? The GDE The baseline design and R&D efforts The path to the RDR Detectors