Novel experiments to study fundamental properties of high-energy-density states in matter generated by intense heavy ion beams will be carried out by the HED@FAIR collaboration at FAIR. For strong transverse focusing a special final focus system consisted of four superconducting large-aperture high-gradient quadrupole magnets will be installed at the end of the HED@FAIR beam line. Design and main characteristics of the quadrupole are discussed. Stress - strain dependence of the quadrupole superconducting cable and electrical strength of the cable insulation are measured. Results of mechanical and thermal calculation of main parts of the quadrupole are presented.
Proceedings of the 26th Russian Particle Accelerator Conf., RUPAC2018, Protvino, Russia