AIRIX alignment and high current beam diagnostics

The high performance required for the French Radiographic Hydrotest Facility is tightly connected to the quality of the electron beam. As part of the AIRIX program an Integrated Test Stand named PIVAIR is achieved at CESTA. Many tools have been developed to control and optimize the beam parameters. At first, we describe the alignment technique chosen for PIVAIR. Since AIRIX have essentially time dependent characteristics, all the beam diagnostics are time resolved. Emittance measurement which uses the pepper-pot technique associated to a fast scintillator radiator and a gated camera, is described. The nondestructive electric diagnostics of the beam position are discussed. We talk about beam profile recording from Cerenkov or optical transition radiation (OTR) radiators. We discuss results of a high resolution energy spectrometer