Recent Improvements in the Orbit Feedback and Ground Motion Mitigation Techniques for CLIC

The Compact Linear Collider (CLIC) has strong stability requirements on the position of the beam. In particular, the beam position will be sensitive to ground motion. A number of mitigation techniques have been proposed - quadrupole stabilisation and positioning, final doublet stabilization as well as beam based orbit and interaction point feedback. Integrated studies of the impact of ground motion on the CLIC Main Linac and Beam Delivery System that model the latest hardware designs have been performed. Furthermore, additional imperfections have been introduced and the robustness of this system is discussed in detail.