Main steps for the fabrication of IPHI RFQ
  The RFQ of the project IPHI is a 8 meter long, high power, very precise tolerances (0.01 mm on 1 meter long for example) device to accelerate protons. This RFQ is similar to the RFQ of the LEDA project. So, we realize a thermal and mechanical studies followed by different tests for machining and brazing copper. We describe in this paper those different steps and the way we proceed to supply the fabrication itself by an independent company. 
M Painchault, J Gaiffier, C Chauvin