Construction of HTS CCT demonstrator

This report presents the as-built details of the HTS Canted Cosine Theta (CCT) magnet demonstrator developed within Task 8.5 of WP8 – Innovative Superconducting Magnets in the I.FAST project. The demonstrator is a straight, two-layer HTS CCT magnet designed to achieve a central dipole field of 4 T at 20 K, using a two-tape HTS cable configuration and targeting a ramp rate of 0.4 T/s. The document describes the final design configuration, conductor and joint characteristics, manufacturing and assembly procedures. The report also summarizes the verification and quality control activities performed prior to testing and evaluates the compliance with design specifications, confirming the magnet’s readiness for cryogenic qualification at INFN.