Design of the PEFP MEBT

A MEBT system of the Proton Engineering Frontier Project (PEFP) has to be installed after the 20 MeV DTL where a beam extraction system will be positioned to supply 20 MeV proton beams to the user group. This implies a large drift space which can be a serious potential problem in the longitudinal beam matching between the DTL and the following accelerating structure. The MEBT consists of 8 quadrupole magnets and 2 buncher cavities. The initial 4 quadrupoles is controlling the beam size in the bending magnet for beam extraction. The transverse beam matching is achieved by the following 4 magnets. The buncher cavities are for the longitudinal beam matching.