Speaker
Description
Sichuan Longevous Beamtech is currently developing a tri-particle cyclotron LB-30TP. The LB-30TP cyclotron is designed to be able to accelerate protons(H-) between 13 and 35MeV, deuterons(D-) between 6.5 and 17.5MeV, and alpha particles(He2+) up to 30MeV.
To compensate the difference of relativistic effects between H- and D- beams, two sets of tuning coils are winded around each pole base, while the isochronization of H- beams is achieved by machining of a removable pole edge on one side of each pole. The magnetic pole is designed to be slightly spiral to enhance the axial focusing force, and it also will alleviate the influence of fringe field on the ions that are extracted from different radii on the other side of the pole. The proton and deuteron beams are extracted from the cyclotron by stripping foils, while the alpha particle beams are obstructed by a bismuth target inside the cyclotron for producing At-211.
