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The ILC Outlook

The ILC Outlook. Barry Barish HEP 2005 Joint ECFA-EPS Lisbon, Portugal 23-July-05. International Technology Review Panel. The ITRP Recommendation. We recommend that the linear collider be based on superconducting rf technology

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The ILC Outlook

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  1. The ILC Outlook Barry Barish HEP 2005 Joint ECFA-EPS Lisbon, Portugal 23-July-05

  2. International Technology Review Panel HEP 2005 - Barish

  3. The ITRP Recommendation • We recommend that the linear collider be based on superconducting rf technology • This recommendation is made with the understanding that we are recommending a technology, not a design. We expect the final design to be developed by a team drawn from the combined warm and cold linear collider communities, taking full advantage of the experience and expertise of both(from the Executive Summary). HEP 2005 - Barish

  4. The SCRF Technology Recommendation • The recommendation of ITRP was presented to ILCSC & ICFA on August 19, 2004 in a joint meeting in Beijing. • ICFA unanimously endorsed the ITRP’s recommendation on August 20, 2004 HEP 2005 - Barish

  5. Starting Point for the GDE Superconducting RF Main Linac HEP 2005 - Barish

  6. The Community then Self-Organized Nov 13-15, 2004 HEP 2005 - Barish

  7. Formal organization begun at LCWS 05 at Stanford in March 2005 when I became director of the GDE The Global Design Effort Technically Driven Schedule

  8. GDE – Near Term Plan • Schedule • Begin to define Configuration (Aug 05) • Baseline Configuration Document by end of 2005 ----------------------------------------------------------------------- • Put Baseline under Configuration Control (Jan 06) • Develop Reference Design Report by end of 2006 • Three volumes -- 1) Reference Design Report; 2) Shorter glossy version for non-experts and policy makers ; 3) Detector Concept Report HEP 2005 - Barish

  9. Snowmass Workshop – Aug 2005 HEP 2005 - Barish

  10. Snowmass – GDE Takes Over HEP 2005 - Barish

  11. Key Near-Term Design Choices • Accelerating Gradient • Positron Production mechanism • Design of Damping ring • Site-specific considerations: One or two tunnels? Shallow or deep?, etc • Total cost will be a key determining factor in our ability to get the ILC built. Therefore cost optimization of all systems is of primary importance HEP 2005 - Barish

  12. Accelerator Physics Challenges • Develop High Gradient Superconducting RF systems • Requires efficient RF systems, capable of accelerating high power beams (~MW) with small beam spots(~nm). • Achieving nm scale beam spots • Requires generating high intensity beams of electrons and positrons • Damping the beams to ultra-low emittance in damping rings • Transporting the beams to the collision point without significant emittance growth or uncontrolled beam jitter • Cleanly dumping the used beams. • Reaching Luminosity Requirements • Designs satisfy the luminosity goals in simulations • A number of challenging problems in accelerator physics and technology must be solved, however. HEP 2005 - Barish

  13. Detector Concepts and Challenges • Three concepts under study • Typically requires factors of two improvement in granularity, resolution, etc. from present generation detectors • Focused R&D program required to develop the detectors -- end of 2005 • Detector Concepts will be used to simulate performance of reference design vs physics goals next year. HEP 2005 - Barish

  14. Conclusions • Remarkable progress in the past two years toward realizing an international linear collider: important R&D on accelerator systems definition of parameters for physics choice of main linac technology start the global design effort funding agencies are engaged • Many major hurdles remain before the ILC becomes a reality (funding, site, international organization, detailed design, …), but there is increasing momentum toward the ultimate goal --- An International Linear Collider. HEP 2005 - Barish

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