Introduction and Charge

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• Introduction and Charge

Barry Barish GDE Meeting Frascati 7-Dec-05
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The GDE after 3 Months

• How are we doing?
• BOTTOM LINE is that we are on track to produce a
  BCD by end of 2005 that will provide a sound
  basis for entering into a reference design
  effort, globally coordinate RD program, begin
  industrialization, determine costs, etc. next
  year
• What are our biggest problems?
• communication, communication, communication
• Where are we going next?
• Stay tuned for my next talk

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GDE Frascati Why are we here?

• Discuss progress since Snowmass
• Finish the BCD
• Organize the GDE and the broader RD and Design
  efforts for next year

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GDE Began at Snowmass
670 Scientists attended two week workshop at
Snowmass
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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.)

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GDE Organization for Snowmass

• WG1 LET bdyn.
• WG2 Main Linac
• WG3a Sources
• WG3b DR
• WG4 BDS
• WG5 Cavity

Technical sub-system Working Groups
Provide input
Global Group

• GG1 Parameters
• GG2 Instrumentation
• GG3 Operations Reliability
• GG4 Cost Engineering
• GG5 Conventional Facilities
• GG6 Physics Options

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Goals of the Snowmass Workshop

• Recommendations for the Baseline Configuration
• Identify - Alternative Configurations
• Identify RD
• To support the baseline
• To develop the alternatives
• Priorities for detector RD

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Guidance for Baseline Configuration
Baseline A forward looking configuration which
we are reasonably confident can achieve the
required performance and can be used to give a
reasonably accurate cost estimate by mid-end
2006 in a Reference Design Report.
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What are Alternatives and Why?
Alternates Technologies or concepts, which may
provide a significant cost reduction, improved
performance (or both), but which will not be
mature enough to used in baseline by end
2006Alternatives will be part of the RDR, will
form an important element in the RD program and
are the key to evolving the design
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Baseline Configuration Document

• Our Deliverable by the end of 2005
• A structured electronic document
• Documentation (reports, drawings etc)
• Technical specs.
• Parameter tables
• A printable / readable summary document (100
  pages) (ready in early 2006)

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Structure of the BCD
Summary-like overview for those who want to
understand the choice and the why
Technical documentation of the baseline, for
engineers and acc. phys. making studies towards
RDR
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Alternatives Section(s)
Note ACD is part of the BCD
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The Key Decisions
Critical choices luminosity parameters gradient
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Making Choices The Tradeoffs
Many decisions are interrelated and require input
from several WG/GG groups
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From Snowmass to a Baseline
2005
Snowmass
August
September
October
November
December
WW/GG summaries
Response to list of 40 decisions
All documented recommendations available on ILC
Website (request community feedback)
Review by BCD EC
BCD EC publishesstrawman BCD
BCD Executive Committee BarishDugan, Foster,
Takasaki Raubenheimer, Yokoya, Walker
Public Review
Frascati GDE meeting
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Baseline Configuration Document Review Process

• BCD executive committee has monitored BCD
  progress
• Review WG/GG summary write-ups (recommendations)
• Review each question on the list of 40 decisions
• BCD EC identified and solicited needed additional
  input
• Commissioned 5 white papers
• Invited independent reviewers (Oide, Richter
  Rivkin)
• Strawman BCD available mid-November
• Presentation of strawman BCD at Frascati GDE
  meeting (Dec. 10-12)
• Final agreed BCD to be documented by end of 2005
• Final BCD becomes property of Change Control
  Board in early 2006
• Reference Design to be completed by end of 2006

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The Prospects for the ILC

• The science motivation for the ILC is our
  strongest weapon
• The technical basis for the ILC is very stong
• A global effort to design the ILC is underway and
  working
• Establishing a baseline will make the ILC more
  real and taken more seriously
• --------------------------
• A sound design must be established with
  convincing and affordable costing.
• Global RD program to demonstrate the ILC,
  improve over the baseline and reduce costs.