1st FCC Infrastructure & Operation meeting FCC Infrastructure & Operation studies: objectives, work program, organization Ph. Lebrun & P. Collier 1st FCC Infrastructure & Operation meeting CERN, 22 January 2014

European Strategy Update on Particle Physics Design studies and R&D at the energy frontier “CERN should undertake design studies for accelerator projects in a global context, with emphasis on proton-proton and electron-positron high-energy frontier machines. These design studies should be coupled to a vigorous accelerator R&D programme, including high-field magnets and high-gradient accelerating structures, in collaboration with national institutes, laboratories and universities worldwide” HFM HGA Ph. Lebrun & P. Collier FCC I&O meeting, 140122

CLIC CDR and cost study (2012) 3 volumes: physics & detectors, accelerator complex, strategy, cost & schedule Collaborative effort: 40+ institutes worldwide Ph. Lebrun & P. Collier FCC I&O meeting, 140122

The Future Circular Colliders (FCC) design study Aiming for CDR and Cost Review for the next ESU (2018) 80-100 km tunnel infrastructure in Geneva area design driven by pp-collider requirements with possibility of e+-e- (TLEP) and p-e (VLHeC) CERN-hosted study performed in international collaboration 16 T  100 TeV in 100 km 20 T  100 TeV in 80 km Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Structure of FCC study Leader Michael Benedikt, Deputy Frank Zimmermann Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Main areas of FCC design study Preparatory Group Ph. Lebrun & P. Collier FCC I&O meeting, 140122

WBS of FCC Study Ph. Lebrun & P. Collier FCC I&O meeting, 140122

WBS of FCC I&O Study Action 1 [participants]: indicate/confirm names of I&O WP leaders for FCC study Action 2 [WP leaders]: define “principal actors” for FCC I&O WPs  access rights, documentation Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Civil Engineering WBS Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Technical Infrastructure WBS Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Operation & Energy Efficiency WBS Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Integration WBS Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Computing & Data Services WBS Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Safety & Environment WBS Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Some top-level questions with impact on infrastructure Collision energy, circumference, bending field, accelerating gradient Injection energy & injectors Number of experimental areas Luminosity, intensity, emittance, beta star, pileup Luminosity lifetime and optimization (topping-up?) Operation at beam-beam limit? Limit on stored energy per beam? Synchrotron radiation: limit on total power? on power per unit length? allowed swing in beam energy along arcs? Installation techniques and schedule … Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Issues in civil engineering Circumference of tunnel (trade-off with field in bending magnets) Geometry of tunnel (quasi-circular, quasi race-track) Footprint of tunnel (geology, geography, built environment, access) A second campus? Number & configuration of interaction points Long straight sections Depth/slope of tunnel Access shafts/ramps Maximum distance between access points, i.e. length of «sector» Generic requirements of technical area at access point Service tunnel and/or equipment (klystron) galleries? Diameter(s) of tunnel(s) … Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Issues in electrical distribution Installed power Existing HV transport network, lines, sub-stations Normal, emergency and no-break networks Staging of voltages in distribution networks Above-ground or in-tunnel distribution Redundancy of network and components («hot» spares) … Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Issues in cooling and ventilation Cooling water: Heat loads, temperatures Primary and secondary circuits Open/closed-circuit aerorefrigerants Basic architecture Chilled water Tunnel ventilation Ventilation scheme Normal, standby and emergency modes Heat loads, flow-rates, temperatures, humidity … Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Issues in operation & energy Reliability & availability Accessibility & serviceability Co- or alternate operation of hadron and lepton colliders Electrical power drivers & efficiency Power consumption in different modes Yearly energy consumption Options for heat recovery and valorization … Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Issues in safety & environment Underground access and egress Managing beam stored energy Managing stored energy in magnet strings Helium discharge, recovery and ODH Managing effluents Radiation protection Radiation tolerance of equipment Radiation monitoring Environmental impacts: construction, operation, dismantling … Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Issues in cost & schedule Cost drivers Cost-performance trade-offs Cost scaling from LHC experience Schedule drivers Co-activities and parallel fronts in underground works Experiments vs machine construction schedules … Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Phases of the FCC study Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Phases of the FCC study Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Phase 1: Explore Understand Functional relations between different systems Basic scaling laws governing technical feasibility, capex, construction & installation schedules, operability and opex Explore and iterate Alternative designs Conventional vs non-conventional approaches Paths towards globally optimized solutions Deliver Baseline solutions, possibly with variants, for detailed study in Phase 2 Action 3 [WP leaders]: produce work program and corresponding resource estimate for 2014 Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Resources for the FCC study in 2014 First attempt at an estimate, presented to Department Heads end 2013 To be refined by technical system owners once work program is defined Allocation to be confirmed by management Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Action 4 [WP leaders]: identify possible collaborations in I&O Next milestone https://indico.cern.ch/conferenceDisplay.py?ovw=True&confId=282344 The scope of this meeting is to discuss the main study topics to prepare the groundwork for the establishment of international collaborations and future studies Action 4 [WP leaders]: identify possible collaborations in I&O Ph. Lebrun & P. Collier FCC I&O meeting, 140122

Infrastructure and Operation meetings Purposes Information on advancement of study and parameter definition [PhL & PC] Interface management between parameters, layout and technical systems Reporting of progress in I&O [System owners] Co-chaired by PhL & PC Attended by I&O system owners Monthly frequency Time slot: Wednesday morning, 10h-12h Indico agenda and working document repository Minutes? Next meeting: Wednesday 26 February 10h00 Ph. Lebrun & P. Collier FCC I&O meeting, 140122