Charge-stripping foil changer with energy adjuster function

A charge-stripping foil changer that has an energy adjuster function was constructed. One of the 30 foils in the changer is placed at the beam position without opening the vacuum chamber. The energy of the beam behind the charge stripper is adjusted by changing the effective thickness of the foil, which is changed by tilting the foil at an angle from 0° to 60°. A uranium beam was accelerated to 345 MeV/nucleon using two charge-stripping foil changers with an energy adjuster function.