Abstract
In this paper we present the tuning study of the Compact Linear Collider - Final Focus System (CLIC-FFS) 3 TeV baseline design under static and dynamic imperfections for the first time. The motion of the FFS magnets due to ground motion and the impact of active and passive mechanisms envisaged to stabilize both e− and e+ systems are described. It is found that the Pre-isolator required for stabilization of the Final Doublet drives the performance of the collider at the final stages of the tuning process. The obtained tuning performance depending on the stabilization techniques are discussed in detail.
Highlights
The Compact Linear Collider (CLIC) [1] aims to collide e− and e+ at the Interaction Point (IP), at center-of-mass energy of 3 TeV, delivering a nominal luminosity (L0) of 5.9 × 1034 cm−2 s−1 to the experiments
Simulations of 100 machines with different static imperfections are considered to verify the robustness of the Final Focus System (FFS) of both e− and e+ systems against machine imperfections
Past tuning studies [4] of the CLIC-FFS baseline design showed that 90% of the machines reach a L ≥97% of L0 after 15000 luminosity measurements when considering only static imperfections such as beam position monitor alignment and resolution and strength errors and alignment of the magnets in both beamlines
Summary
The Compact Linear Collider (CLIC) [1] aims to collide e− and e+ at the Interaction Point (IP), at center-of-mass energy of 3 TeV, delivering a nominal luminosity (L0) of 5.9 × 1034 cm−2 s−1 to the experiments. Past tuning studies [4] of the CLIC-FFS baseline design showed that 90% of the machines reach a L ≥97% of L0 after 15000 luminosity measurements when considering only static imperfections such as beam position monitor alignment and resolution and strength errors and alignment of the magnets in both beamlines.
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