Status of the International Linear Collider and

Importance of Industrialization

B BarishFermilab21-Sept-05

21-Sept-05 Fermilab ILC Industry Meeting 2

An International Initiative

• R&D toward an ILC was carried out over the last decade in three regions of the world and primarily at SLAC in the U.S., KEK in Japan and DESY in Germany

• The crucial technology decision was successfully made by an international panel having 4 members from each region

• We are now entering the design phase, which will be carried out under the guidance of the GDE, which again has comparable membership from all three regions

• We fully expect the final project to be international

21-Sept-05 Fermilab ILC Industry Meeting 3

The Technology Recommendation

• The recommendation was presented to ILCSC & ICFA on August 19 in a joint meeting in Beijing.

• ICFA unanimously endorsed the ITRP’s recommendation on August 20

21-Sept-05 Fermilab ILC Industry Meeting 4

The Community then Self-Organized

Nov 13-15, 2004

21-Sept-05 Fermilab ILC Industry Meeting 5

2nd ILC Accelerator Workshop

21-Sept-05 Fermilab ILC Industry Meeting 6

The Global Design Effort

– The Mission of the GDE • Produce a design for the ILC 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.)

The GDE Plan and 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

21-Sept-05 Fermilab ILC Industry Meeting 8

main linacbunchcompressor

dampingring

source

pre-accelerator

collimation

final focus

IP

extraction& dump

KeV

few GeV

few GeVfew GeV

250-500 GeV

Starting Point for the GDE

Superconducting RF Main Linac

21-Sept-05 Fermilab ILC Industry Meeting 9

Cost Breakdown by Subsystem

cf31%

structures18%rf

12%

systems_eng8%

installation&test7%

magnets6%

vacuum4%

controls4%

cryo4%

operations4%

instrumentation2%

Civil

SCRF Linac

21-Sept-05 Fermilab ILC Industry Meeting 10

TESLA Cavity

9-cell 1.3GHz Niobium Cavity

Reference design: has not been modified in 10 years

~1m

21-Sept-05 Fermilab ILC Industry Meeting 11

Cavity Fabrication

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Gradient

Results from KEK-DESY collaboration

must reduce spread (need more statistics)

single

-cell

measu

rem

ents

(in

nin

e-c

ell

cavit

ies)

21-Sept-05 Fermilab ILC Industry Meeting 13

Improved Fabrication

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Improved ProcessingElectropolishing

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Improved Cavity Shapes

21-Sept-05 Fermilab ILC Industry Meeting 16

ILC Siting and Conventional Facilities

• The design is intimately tied to the features of the site– 1 tunnels or 2 tunnels?– Deep or shallow?– Laser straight linac or follow earth’s curvature in

segments?

• GDE ILC Design will be done to samples sites in the three regions – North American sample site will be near Fermilab– Japan and Europe are to determine sample sites by the

end of 2005

21-Sept-05 Fermilab ILC Industry Meeting 17

1 vs 2 Tunnels

• Tunnel must contain– Linac Cryomodule– RF system– Damping Ring Lines

• Save maybe $0.5B

• Issues– Maintenance– Safety– Duty Cycle

21-Sept-05 Fermilab ILC Industry Meeting 18

Possible Tunnel Configurations

• One tunnel of two, with variants ??

21-Sept-05 Fermilab ILC Industry Meeting 19

ILC Civil Program

Civil engineers from all three regions working to develop methods of analyzing the siting issues and comparing sites.

The current effort is not intended to select a potential site, but rather to understand from the beginning how the features of sites will effect the design, performance and cost

21-Sept-05 Fermilab ILC Industry Meeting 20

Baseline Klystrons

ThalesCPI

Toshiba

Available today: 10 MW Multi-Beam Klystrons (MBKs) that operate at up to 10 Hz

21-Sept-05 Fermilab ILC Industry Meeting 21

Improved Klystron ?

10 MW Sheet BeamKlystron (SBK)Parameters similar to

10 MW MBK

Low Voltage10 MW MBK

Voltage e.g. 65 kVCurrent 238AMore beams

Perhaps use a Direct Switch Modulator

5 MW Inductive Output Tube (IOT)

Drive

Out

put

IOT

Klystron

SLAC CPI

KEK

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How and when to involve industry?

• Large Scale Project Characterization– Large Project Management– Precision Engineering– International Coordination– Costing

• Industrialization– Civil Construction & Infrastructure– Cryogenics– Superconducting RF structures, couplers, etc– Electronics and Control Systems– Large Scale Computing