Requirements and Design Criteria for the LHC Collimation System

More documents

Recommendations

Info

5$ (3$& Inefficiency with imperfections Value of imperfections for 50% increase (each) in inefficiency: Transient changes Collimators need not only be robust, but also precise! Beam R. Assmann et al, MOPLE030 Preliminary estimates: Combined effect can make tolerances more severe! 5 V mm
5$ (3$& Summary and Outlook 1 Beam impact requirements analyzed (failure modes and operational requirements) for a robust and efficient LHC collimation system! Now engineering design starting: appropriate materials (low Z), lengths, mechanics, cooling, damage and fatigue analysis, tolerances, … Additional concerns: Impedance, vacuum, local e-cloud, radiation impact. Two cleaning insertions, each two-stage, defined since years for high efficiency cleaning. Accelerator physics and operational analysis is ongoing: Overall tolerance specifications (flatness, required adjustments, orbit and optics requirements, …). Operational optimization. Realistic diffusion and aperture models (BLM signals). Chromatic effects. Cross-checks of different scattering and tracking tools.
Page 1 and 2: 5$ (3$& Requirements and Design Cri
Page 3 and 4: 5$ (3$& What is collimation for the
Page 5 and 6: 5$ (3$& Challenge: High Stored Ener
Page 7 and 8: 5$ (3$& Challenge: Super-Conducting
Page 9 and 10: 5$ (3$& Challenge: Tight and Effici
Page 11 and 12: Equipment failures Equipment errors
Page 13 and 14: 5$ (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$& Secondary and tertiary beam
Page 21: 5$ (3$& Running at the quench limit
Page 25 and 26: 5$ (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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?