粒子加速相位规划、粒子轨道对中、纵向运动匹配、径向运动稳定性和轴向运动稳定性等许多关键束流动力学问题都集中于中心区,中心区设计的好坏将直接影响加速器引出束流的品质。230MeV超导等时性回旋加速器设计引出流强为1μA,拟采用内部离子源结构,加速粒子为质子,加速电压由对称的放置于磁铁谷区的4个谐振腔提供,相对的腔体同相位,相邻的腔体相位相反, Many of the key beam dynamics problems, such as particle-accelerated phase planning, particle orbit alignment, longitudinal motion matching, radial motion stability and axial motion stability, are concentrated in the central region. The design of the central region will directly affect the accelerator output beam Stream quality. 230MeV superconducting isochronous cyclotron design draws the flow to be strong as 1μA, intends to use the internal ion source structure, accelerates the particle as the proton, the acceleration voltage is provided by the symmetrical four resonant cavities in the magnet valley, the relative cavity in phase , Adjacent to the opposite phase of the cavity,