BGC integration into the LHC Tom Dodington 17

BGC integration into the LHC Tom Dodington 17 August 2017 BE-BI-ML Thanks to Maria Gonzalez De La Aleja Cabana from CERN’s Design Office for Integration help.

Integration Location HEL to be integrated into HL-LHC collimation system. Proposed locations for the electron lenses are RB-44 and RB-46 at Point 4, on each side of the interaction region IR 4. • Beam to beam distance 420 mm • Limited longitudinal space for Survey and Transport restrictions. • Connections 17/08/2017

HEL Model Current HEL model. Cryostat is likely to change. We will analyse space availability by integrating the current BGC model. 17/08/2017

HEL with Infrastructure 17/08/2017

Requirements for Integration • Integration of BGC between Bending Toroid/Solenoid in space available (3 D) • • Vacuum Sector valves Space Allocation • Power for pumps (rack space and cabling) • Power/Signal cables for Diagnostic for vacuum, cameras, calibration (Rack space and cabling) • Cryopump? 17/08/2017

BGC with HEL Model 17/08/2017

Space Availability in LHC Tunnel Taken from HL-LHC Integration webpage 17/08/2017

Space Availability in LHC Tunnel 17/08/2017

HEL Integration Collisions on both sides • Best within the Transport crash barrier • 17/08/2017

HEL Integration • Approx. 1300 mm total length available: • 600 nozzle side • 700 collection side 17/08/2017

HEL Integration • The BGC should work in any orientation • We can try a range of angles for best integration angle. • 45 degrees shown. 17/08/2017

Next Steps for HEL Integration • Integration drawings in Solenoid/Toroid environment and tunnel installation • Adopt demonstrator set-up for tunnel environment • ECR • Assure services (Cabling, Racks…) 17/08/2017

LS 2 BGC Integration Key locations to avoid: • 2 nd Beam Pipe • Transport space • Survey Space 17/08/2017

LS 2 BGC Integration Best Fit Now: • 45 degree • Still overlaps • Future BGC must be shorter 17/08/2017

Next Steps for LS 2 Integration Detail location of vacuum flanges & valves New sector location: • • Suggested location of new valves to be added Sector should be suitable for BGC/LS 2 and HEL. 17/08/2017

References Slide 1: HL-LHC integration meeting, Ignacio FERNANDEZ Slide 2&3 : HEL integration CAD, provided by Maria Gonzalez De La Aleja Cabana Slide 6 : HL-LHC Tunnel RB 44 Sections, S. Mehanneche Slide 14: LSS schematic View, Estrella Vergara Fernandez 17/08/2017

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800 l/s pump 17/08/2017