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FCC Future Development: Key Objectives and Milestones for HEB Options

This document outlines the key objectives and deliverables for the Future Circular Collider (FCC) project, particularly focusing on High-Energy Beam (HEB) options. Key milestones include the sorting of international expressions of interest by May 2014, defining 'global collaboration' by September 2014, and establishing a common baseline for technical options by March 2015. The document emphasizes identifying critical feasibility criteria, relevant costs, and detailed parameters for each option, while addressing magnet characteristics and collective effect evaluations for various collider tunnel configurations.

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FCC Future Development: Key Objectives and Milestones for HEB Options

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  1. 2014 FCC-FHI objective B.Goddard 4/3/14

  2. From FCC kick-off

  3. Next ~year deadlines and deliverables • Organisational: • Sort out the international “expressions of interest”, open until end May 2014 • Definition of “global collaboration” in September 2014 • Technical • Description and comparison of options with relative merits/cost, for FCC Workshop 23-27th March 2015 • Converge to common baseline with small number of options • To be formalised in Review in June 2015

  4. Technical deliverables • Aim to narrow options to 1-2 by March 2015 • Clearly need to identify and focus on the items critical for feasibility AND cost (as cost will eventually also be a criterion) • Key topics to establish for each of our HEB options

  5. What do we need for March 2015? • Coherent overall concept for each option • Basic parameters for each option • Identification and evaluation of key feasibility issues (KFI) • Main system technology concepts • Inventory and basic parameters for main systems • Power consumption estimates • Cost scaling methodology • Infrastructure, accelerator systems

  6. Common issues/questions

  7. HEB in SPS tunnel – specific topics

  8. LHC as HEB – specific topics

  9. HEB in LHC tunnel – specific topics

  10. HEB in collider tunnel – specific topics

  11. Getting moving….I • Magnets • Refine magnet parameter tables for each option • Reuse of LHC • modified LHC lattice: copy P6 to P1, remove low betas everywhere else. • new table of circuits, to define convertor limits and check ramp ramps. • new optics, to allow collective effect evaluation • end-points of geometry for TLs • Considerations of completely new machine in LHC tunnel • Magnet parameters, layout • SPS tunnel option • Magnets, ramp rate, extraction, TLs, integration, filling time, ...

  12. Getting moving….II • HH Collider tunnel option • Evaluate possible collective effects at 450 GeV • define magnet characteristics (2-in-one, polarity flip, aperture, ...) • build first simple lattice, iteration on collective effects • Document previous work • SSC, HE-LHC, … • Constraints from beam transfer for layout

  13. Getting moving….III • Answers on key questions from FCC • Injection energy: 3.2 TeV for sure? • Use of HEB for Fixed Target beams (PoT/y??) • Transfer lines and overall machine/complex layouts • Define maximum slope (with SC TL magnets?) and bending radius, also insertion length for HH collider injection

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