The Status of the CEPC Project in EDR

Abstract: In 2023, CEPC accelerator Technical Design Report (TDR) has been formally released, and CEPC project entered Engineering Design Report (EDR) phase before construction. In the paper the accelerator EDR and CEPC detector ref-Design report progresses have been reported, where booster magnet and vacuum chamber NEG coating automatic fabrication lines, 650 MHz full size cryomodule, C-band 80 MW klystron. C-band test band and CCT SC quadrupole studies, etc. have been reported. The CEPC EDR goal, timeline and EDR site geological feasibility study status have been given. The industrial and international collaboration preparation have been addressed. The EDR goal is to complete a CEPC proposal application to Chinese government in 2025 for the construction during the 15th five-year plan (2026-2030) around 2027 and complete the construction by 2035.