Status of the Vacuum System for the IPHI Project - (High Intensity Proton Injector)

A High Intensity Proton Injector (IPHI) prototype is being built at CEA-Saclay. It is foreseen to provide a 1 MW proton beam with a reliability of 95 %. This paper describes the different parts of the vacuum system and the status of the related studies. The High Energy Beam Transport line (HEBT) is dedicated to the diagnostics. Specially, one of them is based on fluorescence issued from beam-residual gas interaction. To avoid any parasitic reflected light, a “black layer” is sprayed on the vessel wall of which desorption is studied.