mike harrison lcfoa meeting july 08 americas ilc status - baseline design 250 250 gev e+ e- linear...

Mike HarrisonLCFOA meetingJuly 08

AmericasILC Status - Baseline DesignILC Status - Baseline Design

250250

250 Gev 250 Gev

e+ e- Linear Collider

Energy 250 Gev x 250 GevLength 11 + 11 km# of RF units 560# of cryomodules 1680# of 9-cell cavities 145602 Detectors push-pull2e34 peak luminosity5 Hz rep rate, 1000 -> 6000 bunches per cycleIP spots sizes: x 350 – 620 nm; y 3.5 – 9.0 nm


AmericasILC Status– Alternate designsILC Status– Alternate designs

The concept is to investigate the removal of conservative features of The concept is to investigate the removal of conservative features of the design to save money and/or simplify the design:the design to save money and/or simplify the design:

Single tunnelSingle tunnelLow loss waveguide power distribution potentially allows the rf sources to Low loss waveguide power distribution potentially allows the rf sources to

be placed on the surface and spaced ~ 1km apart. Reliability concerns be placed on the surface and spaced ~ 1km apart. Reliability concerns which largely determined the second tunnel concept thus negated. which largely determined the second tunnel concept thus negated. Also reduces tunnel cooling requirements. Personnel safety remains an Also reduces tunnel cooling requirements. Personnel safety remains an issueissue

Shallow site central campusShallow site central campusBring the collision points, beam delivery system, and damping rings close Bring the collision points, beam delivery system, and damping rings close

to the surfaceto the surface

Reduced beam powerReduced beam powerCompensate with brighter beams and/or collisions point optics. Simplifies Compensate with brighter beams and/or collisions point optics. Simplifies

rf sources, beam dumps, collimation systems etc….rf sources, beam dumps, collimation systems etc….

+ ……………. ?+ ……………. ?


AmericasILC Status - Global R&D ProgramILC Status - Global R&D Program

What are the drivers for the global program ?What are the drivers for the global program ?

Cost RiskCost Risk– Main Linac RF systems (cavity gradient & yield, cryomodules, HLRF Main Linac RF systems (cavity gradient & yield, cryomodules, HLRF

etc..etc..– Conventional construction/facilitiesConventional construction/facilities

Technical RiskTechnical Risk– Electron cloud effects in the damping ringsElectron cloud effects in the damping rings– Beam delivery system (small beams)Beam delivery system (small beams)

Production Risk (industrial involvement)Production Risk (industrial involvement)– Technology transferTechnology transfer– Volume productionVolume production

cavity gradient MV/m

Cost


AmericasILC status - R&D planningILC status - R&D planning

We are currently planning a ~4 year R&D phase which results in a We are currently planning a ~4 year R&D phase which results in a Project Proposal by 2012Project Proposal by 2012

• RF unit system test –3 CM + beam RF unit system test –3 CM + beam – KEK and FermilabKEK and Fermilab

• Complete the technical design and R&D needed for project proposal Complete the technical design and R&D needed for project proposal ( some exceptions)( some exceptions)– Documented designDocumented design– Complete and reliable cost roll up Complete and reliable cost roll up

• Project plan developed by consensus Project plan developed by consensus – Cryomodule Global Manufacturing Scenario Cryomodule Global Manufacturing Scenario – Siting Plan or ProcessSiting Plan or Process– Project Implementation PlanProject Implementation Plan

What won’t be done:-What won’t be done:-• Detailed Engineering DesignDetailed Engineering Design

– (final engineering, drawings, industry, etc) will follow before (final engineering, drawings, industry, etc) will follow before construction. construction.

• Global CM industrial plant construction Global CM industrial plant construction


AmericasAmericas Region - FY08 StatusAmericas Region - FY08 Status

• The FY08 omnibus spending bill capped US DOE FY08 ART funding The FY08 omnibus spending bill capped US DOE FY08 ART funding at $15M (SRF $5M). Since we were 3 months into the fiscal year at $15M (SRF $5M). Since we were 3 months into the fiscal year with a $60M CR guidance this was tantamount to a ‘cease work’ with a $60M CR guidance this was tantamount to a ‘cease work’ for the balance of FY08. NSF Cornell support was minimally for the balance of FY08. NSF Cornell support was minimally impacted.impacted.

• All spending was halted ~ 1 Jan and a count of funds remaining at All spending was halted ~ 1 Jan and a count of funds remaining at the labs indicated an unobligated balance of ~ $2.5M under the the labs indicated an unobligated balance of ~ $2.5M under the cap. A skeleton program continues in FY08.cap. A skeleton program continues in FY08.

– GDE Common Fund ($400K)GDE Common Fund ($400K)– GDE Collaboration management (4 FTE’s: Barish, Ross, Harrison, GDE Collaboration management (4 FTE’s: Barish, Ross, Harrison,

Carwardine) + some travel for meetingsCarwardine) + some travel for meetings– CESR TA support ($1m)CESR TA support ($1m)– ‘‘Keep alive’ SRF program (~$1.5M)Keep alive’ SRF program (~$1.5M)

• There is some level of ‘generic’ support through the FY08 base There is some level of ‘generic’ support through the FY08 base programprogram


Americas

US ILC Program – P5 advisory US ILC Program – P5 advisory committee (committee (selected quotesselected quotes))

If the optimum initial energy proves to be at or below approximately 500 GeV, If the optimum initial energy proves to be at or below approximately 500 GeV, then the International Linear Collider is the most mature option with a then the International Linear Collider is the most mature option with a construction start possible in the next decade. construction start possible in the next decade.

The cost and scale of a lepton collider mean that it would be an international The cost and scale of a lepton collider mean that it would be an international project, with the cost shared by many nations. – project, with the cost shared by many nations. – • International negotiations will determine the siting; the host will be International negotiations will determine the siting; the host will be

assured of scientific leadership at the energy frontier.assured of scientific leadership at the energy frontier.• A requirement for initial energy much higher than the ILC’s 500 GeV A requirement for initial energy much higher than the ILC’s 500 GeV

will mean considering other collider technologieswill mean considering other collider technologies

Whatever the technology of a future lepton collider, and wherever it is located, Whatever the technology of a future lepton collider, and wherever it is located, the US should plan to play a major role.the US should plan to play a major role.

The panel recommends for the near future a broad accelerator and detector The panel recommends for the near future a broad accelerator and detector R&D program for lepton colliders that includes continued R&D on ILC at R&D program for lepton colliders that includes continued R&D on ILC at roughly the proposed FY2009 level in support of the international effort. roughly the proposed FY2009 level in support of the international effort. This will ensure a significant role for the US even if the ILC is built This will ensure a significant role for the US even if the ILC is built overseas.overseas.


AmericasAmericas Region - FY09 ProgramAmericas Region - FY09 Program

• The FY09 presidents budget shows US ILC at $35.3M (The The FY09 presidents budget shows US ILC at $35.3M (The House & Senate consistent with this)House & Senate consistent with this)

• The out year assumption is constant level of effort for the The out year assumption is constant level of effort for the next several yearsnext several years

• No detailed US ILC multi-year program yet but it is No detailed US ILC multi-year program yet but it is conceptually compatible with the new GDE R&D plan.conceptually compatible with the new GDE R&D plan.

Strategic goals for ART ->Strategic goals for ART ->– Preserve collaborative commitment to the GDEPreserve collaborative commitment to the GDE– Provide contributions to the ILC R&D program which Provide contributions to the ILC R&D program which

are unique to the USare unique to the US– Support a value engineering effort in the medium termSupport a value engineering effort in the medium term– Maintain US program in ILC SRF R&DMaintain US program in ILC SRF R&D– Project X synergy (SRF, HLRF, LLRF, accelerator physics)Project X synergy (SRF, HLRF, LLRF, accelerator physics)


Americas

ART DOE FY09 Funding by SystemART DOE FY09 Funding by System

Program Element $M %

GDE & Lab Management 4.99 14.3

Electron Source 0.94 2.7

Damping Rings 2.51 7.1

Beam Delivery 4.51 13.1

Accelerator Physics 1.63 4.8

Global systems 1.82 5.9

RF Technology (SRF + systems) 16.07 43.1

Conventional Facilities 0.98 2.8

Contingency 1.92 6.2


Americas

Americas Region ILC Program - major Americas Region ILC Program - major elements (2009 – 2012)elements (2009 – 2012)

• Cavities & Cryomodules – Fermilab (ANL, JLAB, Cornell)Cavities & Cryomodules – Fermilab (ANL, JLAB, Cornell)• RF Systems – SLACRF Systems – SLAC• Damping rings electron cloud – Cornell (DOE & NSF)Damping rings electron cloud – Cornell (DOE & NSF)• Beam delivery systems/Detector Interface – SLAC (BNL)Beam delivery systems/Detector Interface – SLAC (BNL)


AmericasILC Key Technologies – cavities & ILC Key Technologies – cavities &

cryomodulescryomodules• StatusStatus

– Maintain US presence in the GDE SRF program but no out year ramp up. Maintain US presence in the GDE SRF program but no out year ramp up.

– No industrialization (tech transfer only). No industrialization (tech transfer only). – Consistent with 2012 systems tests (joint goal between ART & Consistent with 2012 systems tests (joint goal between ART &

Fermilab). Fermilab).

– Gradient program at JLAB & Cornell (+ANL/Fermilab)Gradient program at JLAB & Cornell (+ANL/Fermilab)– Cryomodule prototyping at Fermilab (cryomodule engineering, Cryomodule prototyping at Fermilab (cryomodule engineering,

cryomodule parts, testing etc….. $25M over 4 yrs)cryomodule parts, testing etc….. $25M over 4 yrs)– Note: cryomodule development assumes some Fermilab infrastructureNote: cryomodule development assumes some Fermilab infrastructure– Global Plug compatibilityGlobal Plug compatibility


AmericasILC Key Technologies – RF systemsILC Key Technologies – RF systems

• Next generation hardware under development (SLAC)Next generation hardware under development (SLAC)– Solid state modulator, sheet beam permanent magnet klystron, tunable Solid state modulator, sheet beam permanent magnet klystron, tunable

distribution systemdistribution system


Americas

ILC Key Technologies – Cryogenics & Conventional ILC Key Technologies – Cryogenics & Conventional FacilitiesFacilities

• Key Technologies but less R&D-like:Key Technologies but less R&D-like:– ILC cryogenic system similar in scale to the LHC currently ‘cold’ at CERN ILC cryogenic system similar in scale to the LHC currently ‘cold’ at CERN

(27km at 1.8K). We will obviously learn a great deal in the next several (27km at 1.8K). We will obviously learn a great deal in the next several years from full operations.years from full operations.

• LHC Sector1/2 status as of yesterday:- LHC Sector1/2 status as of yesterday:- The arc has been electrically qualified during the week The arc has been electrically qualified during the week and the DC cables are now being connected to the current leads of both DFBAs. The QPS tests and the DC cables are now being connected to the current leads of both DFBAs. The QPS tests and the power converters unlocking will follow next week from Tuesday with the aim of starting and the power converters unlocking will follow next week from Tuesday with the aim of starting the powering tests on Friday. The problem with the level gauges of the stand alone magnets in the powering tests on Friday. The problem with the level gauges of the stand alone magnets in the long straight sections are being solved and once the last boil-off tests are analyzed they will the long straight sections are being solved and once the last boil-off tests are analyzed they will go through ELQA next week. Finally, the DFBX of point 2L, after the installation of the heaters go through ELQA next week. Finally, the DFBX of point 2L, after the installation of the heaters and temperature sensors, will be delivered for the ELQA next Tuesday. The one in point 1R will and temperature sensors, will be delivered for the ELQA next Tuesday. The one in point 1R will be ready in about two weeks.be ready in about two weeks.

– CFS issues involve design CFS issues involve design

choices more than anythingchoices more than anything


Americas

ILC Key Technologies – High Accuracy ILC Key Technologies – High Accuracy InstrumentationInstrumentation

• Mostly this work is based on the GDE beam test facilities.Mostly this work is based on the GDE beam test facilities.– The ATF2 (Accelerator Test Facility at KEK in Japan) facility is concerned The ATF2 (Accelerator Test Facility at KEK in Japan) facility is concerned

with demonstrating very precise beam position measurements in a with demonstrating very precise beam position measurements in a facsimile of the collision region. Beam stabilizing feedback systems, facsimile of the collision region. Beam stabilizing feedback systems, beam spot instrumentation measurements systems, precise collimation beam spot instrumentation measurements systems, precise collimation and eventually vibration and mechanical controls. This work involves a and eventually vibration and mechanical controls. This work involves a global collaboration not just the US.global collaboration not just the US.

– CESR TA (Cornell) is utilizing specialized vacuum components and CESR TA (Cornell) is utilizing specialized vacuum components and instrumentation in an R&D program of beam dynamics associated with instrumentation in an R&D program of beam dynamics associated with unwanted electrons and very bright beamsunwanted electrons and very bright beams


Americas

ILC Key Technologies – High Availability systemsILC Key Technologies – High Availability systems

High Availability power supplies:•M+1 redundant power modules•Redundant regulators•38 power supply units delivered to KEK for ATF2

ART Controls was all but brought to a stand-still by the FY08 budget

Key expertise has been lost to other programs


AmericasILC Status - SummaryILC Status - Summary

• The FY08 omnibus spending bill resulted in an immediate cessation of most The FY08 omnibus spending bill resulted in an immediate cessation of most of the Americas region efforts.of the Americas region efforts.

• The ART planning assumptions have changed significantly in the past 12 The ART planning assumptions have changed significantly in the past 12 months. The recent US & UK funding decisions result in a more R&D like months. The recent US & UK funding decisions result in a more R&D like (less –engineering like) phase for the next few years.(less –engineering like) phase for the next few years.

• The ILC budget is $35.3M in FY09 appropriationsThe ILC budget is $35.3M in FY09 appropriations

• The proposed US Program is well aligned with the GDE R&D program as well The proposed US Program is well aligned with the GDE R&D program as well as the national and lab based programs.as the national and lab based programs.

• We (GDE) are aiming to have a project proposal ready on the ~2012 We (GDE) are aiming to have a project proposal ready on the ~2012 timescaletimescale

• A continuing resolution in FY09 is (of course) based on the FY08 funding A continuing resolution in FY09 is (of course) based on the FY08 funding and will prove difficultand will prove difficult

mike harrison lcfoa meeting july 08 americas ilc status - baseline design 250 250 gev e+ e- linear...

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