GDE Meeting

B Barish16-Aug-05

• The GDE – who, what and how?• The BCD – what is it?• Internal Organization toward BCD• What do we want out of Snowmass?• How to organize week 2?

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GDE – Staffing

• Staff the GDE– Administrative, Communications, Web staff– Regional Directors (one per region)– Accelerator Experts (covering all technical areas)– Senior Costing Engineer (one per region)– Civil/Facilities Engineer (one per region)– Detectors (WWS chairs)– Fill in missing skills (later)

• Total staff size about 20 FTE (2005-2006) about 40 heads.

• The internal GDE organization and tasks will be organized internationally, not regionally

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Who are we?

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What’s are job?

– 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.)

What’s our 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

LHCPhysics

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Design Approach• Create a baseline configuration for the machine

– Document a concept for ILC machine with a complete layout, parameters etc. defined by the end of 2005

– Make forward looking choices, consistent with attaining performance goals, and understood well enough to do a conceptual design and reliable costing by end of 2006.

– Technical and cost considerations will be an integral part in making these choices.

– Baseline will be put under “configuration control,” with a defined process for changes to the baseline.

– A reference design will be carried out in 2006. I am proposing we use a “parametric” design and costing approach.

– Technical performance and physics performance will be evaluated for the reference design

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Approach to ILC R&D Program

• Proposal-driven R&D in support of the baseline design. – Technical developments, demonstration experiments,

industrialization, etc.

• Proposal-driven R&D in support of alternatives to the baseline– Proposals for potential improvements to the baseline,

resources required, time scale, etc.

• Develop a prioritized DETECTOR R&D program aimed at technical developments needed to reach combined design performance goals

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How will we do our work?

• Short term organization– Need simple organization – many global questions– Good tools (video conferencing, EDMS, etc)– Internationally organized– Organize second week and products from Snowmass to

organize fall BCD program (Snowmass Frascati)

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How do we do our work?• Short term organization

– Need simple organization – many global questions– Good tools (video conferencing, EDMS, etc)– Tasks - Internationally organized– Organize Snowmass second week and products to enable

and focus fall BCD program (Snowmass Frascati)

• General Meetings– Snowmass (Aug 05) first meetings– Frascati (Dec 7-10, 2005) (in conjunction with TESLA

collaboration meeting)– Bangalore, India (March 2006) (in conjunction with LCWS

2006)– Topical Meetings ?? (Simplified organization will

minimize meetings)

• Our process and meetings will be open!

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What are our Goals at Snowmass?

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How do we organize ourselves?

BCD Tasks or Issues

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What is our design approach?– Create forward looking BCD, consistent with doing

reference design and costing next year • Regarding the parameter space, I think it important to

maintain a large operating space at this point in the project.  The four places that the parameter range pushed are the number of bunches stored in the damping ring, the minimum bunch length, the angular divergences, and the beamstrahlung and extraction line system.  In some cases, it may be possible to consider schemes where increases to the parameter range are add-ons - for example, it may be possible that a second bunch compressor is an inexpensive add-on and a could be installed after initial operation, however there are also cases where the parameter changes would imply much larger and invasive modifications: for example, the larger number of bunches or increased bandwidth in the extraction line. (Tor)