International Linear Collider Status

The Design & Value Costs SRF Technology The XFEL as a Prototype Japan as a Host

Mike Harrison

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A Global Initiative for an ILC International Committee for Future Accelerators (ICFA) representing major particle physics laboratories worldwide.

•Chose ILC accelerator technology (SCRF) •Determined ILC physics design parameters •Formed Global Design Effort and Mandate 2006

Mike Harrison

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Technical Design Completed Dec 2012

• Technical design completed and reviewed (PAC Dec 2012). TDR completed.

• Value cost estimate of $7.6B based on TDR + 22.6M man-hrs of explicit labour (~$2B). Value estimate does not cover US specific cost elements such as escalation, contingency, pre-ops, etc.

• Generic site(s): flat terrain & mountainous • Using “reasonable” assumptions, ~9 years from ground breaking to start of beam commissioning

Mike Harrison

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ILC Schematic

Tunnels in the Japanese Mountains

New Tunnel Shape

Grooved Insert for CesrTA Wiggler

ILC Cost Breakdown

Dumps and Collimators Instrumentation Vacuum Integrated Controls and LLRF Magnets and Power Supplies Cryogenics Computing Infrastructrure Other High Level RF Area-specific Systems Cavities and Cryomodules Installation Conventional Facilities

ILC TDR Value Estimate

L-band High Level RF

ILC Value – by Area Systems

4 500 4 000 3 500 3 000 2 500 2 000 1 500 1 000 500 Main Cost Driver

Conventional Facilities Components

0 Main Linac Damping Rings RTML Positron Source BDS Common Exp Hall Electron Source

Global Design Effort

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SRF Linac Technology Mike Harrison

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SRF Linac Technology

Beam pipe LHe tank Two-phase He pipe HOM coupler HOM coupler Frequency tuner 9-cell cavi es Input coupler 1.3 GHz Nb 9-cellCavities Cryomodules SC quadrupole pkg 10 MW MB Klystrons & modulators 16,024 1,855 673 426 / 461 * * site dependent Approximately 20 years of R&D worldwide 9

Mike Harrison

Cavity Production Yield

XFEL Cryomodule Cost breakdown XFEL CM approximate cost breakdown

Tes ng 26% String & CM assembly 9% Cryostat/ cold-mass 8% BPM 0% SC Quadrupole 2% Tuner 5% High-power coupler 14% Cavity 36% • 8 cavities + 1 sc quad –

~12 m cryomodule

• Including testing –

cavity vertical test

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cryomodule pulsed test

• Testing – – –

Assumes 100% DESY infrastructure 100% testing second largest cost driver after sc cavities

EXFEL Cryomodule flow

Fabrication Companies Testing at Host Lab - DESY Cryomodule Assembly

EXFEL Cavity Qualification at DESY

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Coupler testing and processing:

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EXFEL Cryomodule Fabrication

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EXFEL Cryomodule Fabrication Information

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EXFEL Cryomodule Database

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2012-11-13

EXFEL Cavity Qualification

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Marx modulator

RF Power Source

10MW MB Klystron Adjustable local power distribution system  Presentation by S. Fukuda 19

Step hosted A Model for Cavity and CM Production and Qualification Process Industry Industry/Labo ratory Hub laboratory ILC Host laboratory

Regional constraint no yes or no yes yes Sub-comp/material - Production/Procurement 9-cell Cavity - Manufacturing Nb, Ti, specific comp. … 9-cell-cavity, Process, He-Jacketing Procurement Procurement 9-cell Cavity - Performance Test Cryomodule component - Manufacturing Cryomodule/Cavity - Assembly SCRF Cryomodule - Perofrmance Test Accelerator integration, Commissioning V. vessel, cold-mass ...

Cav-string/ CM-assembly Cold, gradient test Procurement Cold, gradient test Accelerator sys. Integ .

A. Yamamoto: 2013.2.6

SCRF Cost Overview

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The Linear Collider Collaboration

ICFA Program Advisory Committee Linear Collider Board Directorate – Lyn Evans Deputy (Physics) – Hitoshi Murayama ILC – Mike Harrison CLIC – Steinar Stapnes Physics & Detectors – Hitoshi Yamamoto The GDE will close-out TDR related business – formal end in June 25

Political

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Political

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Political

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Science

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Industry

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Political

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Conclusions

• Technical focus will shift to cryomodules via the XFEL production • Site specific conceptual design next step • Value engineering on linac systems • The US R&D program ends with the GDE. Awaits further development towards a project • Japan seriously considering offering to host • New global collaboration after the GDE. It contains all the linear collider activities, not just the ILC.

HEPAP Facilities Panel Feb 2013

Mike Harrison

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