X Fel project
Zanon played an outstanding role in European XFEL Project, in particular:
• 420 units of 9 cells 1.3 GHz cavities and 20 units of 9 cells 3.9 GHz cavities were manufactured, treated and integrated into the titanium helium tanks, also produced by Zanon in according to PED category IV, with a delivery production rate of 4 units/week;
• 146 units of titanium helium tanks were prefabricated, He leak checked and sent to DESY;
• 45 units of cryomodules completed with the cold-mass were prefabricated and tested.
For this huge and important project Zanon has developed a new electropolishing machine dedicated to the surface treatment of the elliptical cavities and it has improved the original plant with the purchase of an ultra high vacuum furnace dedicated only to the Nb treatments.
For XFEL project Zanon and DESY has worked together establishing a sort of collaboration with INFN-LASA support. In fact, after a first phase where DESY has qualified the material, the design of the cavities and their surface treatment, the technology was transferred