Speaker
Wim Weterings
(CERN)
Description
at CERN, the Linac4 accelerator is injecting 160 MeV H− beam into the 4 superposed PS Booster rings. This is achieved by a H− charge-exchange injection chicane system, using 200 µg/cm2 low density material stripping foils, to convert the negative hydrogen ions into protons by stripping off the electrons. In parallel, stripping efficiency measurements, of different foil types, are done with a dedicated stripping foil test stand in the L4 Transfer Line. This paper briefly recalls the design of the stripping foil units and summarises the practical experience on gluing and handling these foils, before reporting on the important results obtained during measurements and operation with beam.