The Compact Linear Collider (CLIC) collaboration has submitted to the European Strategy Update a Project Implementation Plan for construction of a 380 GeV e+e- linear collider at CERN. The machine is upgradeable in stages to 3 TeV. The CLIC design is based on high-gradient normal-conducting accelerating structures operating at X-band (12 GHz) frequency.
We present the CLIC accelerator concept and the current status of the project. We report on high-power tests of X-band structures using test facilities across the collaboration, as well as CLIC system verification studies and the technical development of key components of the accelerator. We present updated estimates of the cost, and of the power budget which is substantially reduced relative to the CDR, for both the baseline design and a klystron-based alternative at 380 GeV.
We present plans and developments for the next project phase, which would lead to readiness for construction around 2026 and first physics by 2035.