Requirements and Design Criteria for the LHC Collimation System

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5$ (3$& Challenge: Tight and Efficient Collimation 1 Collimator settings: 5 - 6 V (primary) 6 - 9 V (secondary) V ~ 1 mm (injection) V ~ 0.2 mm (top) Number of protons reaching 10V: 10 -4 of p at 6 V Reminder: Normalized available LHC aperture specified to be 10V at injection (arcs) and top energy (triplets). + 3-4 mm for closed orbit, 4 mm for momentum offset, 1-2 mm for mechanical tolerances
5$ (3$& Challenge: Tight and Efficient Collimation 2 Two LHC insertions dedicated to cleaning: IR3 Momentum cleaning 1 primary 4 secondary IR7 Betatron cleaning 4 primary 16 secondary Two-stage collimation system. 50 movable collimators for high efficiency cleaning + other absorbers for high amplitude protection
Page 1 and 2: 5$ (3$& Requirements and Design Cri
Page 3 and 4: 5$ (3$& What is collimation for the
Page 5 and 6: 5$ (3$& Challenge: High Stored Ener
Page 7: 5$ (3$& Challenge: Super-Conducting
Page 11 and 12: Equipment failures Equipment errors
Page 13 and 14: 5$ (3$& Abnormal dump actions Beam
Page 15 and 16: 5$ (3$& Contents 1) The challenge H
Page 17 and 18: 5$ (3$& Two stage collimation syste
Page 19 and 20: 5$ (3$& Secondary and tertiary beam
Page 21 and 22: 5$ (3$& Running at the quench limit
Page 23 and 24: 5$ (3$& Summary and Outlook 1 Beam
Page 25 and 26: 5$ (3$& Additional slides
Page 27 and 28: 5$ (3$& Inefficiency versus imperfe
Page 29: 5$ (3$& Multi-turn properties and i

Requirements and Design Criteria for the LHC Collimation System

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