Author: Ji, H.F.
Paper Title Page
MOPFI030 Study of the Beam Injection and Extraction of the Proton Irradiation Accelerator 348
 
  • Y.W. An, H.F. Ji, S. Wang
    IHEP, Beijing, People's Republic of China
  
  The pro­ton ir­ra­di­a­tion ac­cel­er­a­tor is widely founded for in­dus­try ap­pli­ca­tion, and the ex­tracted beam is re­quired to have large in­ten­sity as a pulse beam or uni­form dis­tri­b­u­tion for scan­ning. A multi-turn in­jec­tion is adopted and the pro­ton beam is in­jected into the ring with the en­ergy of 10MeV. In order to in­crease in­jec­tion beam in­ten­sity, local bump orbit in­clud­ing two-bump, three-bump and four-bump is well stud­ied and op­ti­mized, and the sep­tum mag­net thick­ness and lo­cal­iza­tion are also stud­ied for an ef­fec­tive in­jec­tion. A RF knock-out method is used for slow ex­trac­tion due to the fast re­sponse char­ac­ter. In order to de­crease the global spill, dou­ble RF kicker and the con­trol of the ap­ti­tude mod­u­la­tion (AM) func­tion of the trans­verse RF field are well stud­ied.