• A. Pepato, F. Scantamburlo
  INFN- Sez. di Padova, Padova
• M. Comunian, A. Palmieri, A. Pisent, C. Roncolato
  INFN/LNL, Legnaro (PD)
• E. Fagotti
  Consorzio RFX, Associazione Euratom-ENEA sulla Fusione, Padova

The IFMIF-EVEDA RFQ is a 9.8 m long cavity, whose working frequency is equal to 175 MHz. In the base line design the accelerator tank is composed of 9 modules flanged together and a pattern of lateral CF100 flanges allows to host the dummy tuners and the couplers, and a pattern of CF 150 flanges the apertures for vacuum pumping manifolds as well. The construction procedure of each module foresees the horizontal brazing of four half –module length electrodes and then the vertical brazing of two brazed assembly. The progresses in the design and engineering phase, as well the description of all the fabrication phases are reported.