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230MeV回旋加速器是用于单粒子效应等辐射物理和质子治疗等医疗卫生领域的加速器,流强要求不高,所以加速器设计采用内部离子源,直接加速质子束。内部离子源情况下,中心区是离子从静止到一定高能量的加速过程的过渡区域,是回旋加速器设计中的一关键部分,加速相位的规划、束流对中以及径向和轴向的稳定性等许多关键束流动力学问题都集中于中心区,因此中心区设计的优劣将直接影响引出束流的品质。
The 230 MeV cyclotron is an accelerator used in the medical and health fields such as radiation physics and proton therapy such as single-particle effects, and its flow strength is less demanding. Therefore, the accelerator design uses an internal ion source to directly accelerate the proton beam. In the case of an internal ion source, the central region is a transitional region of ions accelerating from a standstill to a certain high energy and is a key part of cyclotron design, planning of accelerated phases, beam centering and radial and axial stabilization Many of the key beam dynamics problems are concentrated in the central area, so the quality of the central area design will directly affect the quality of the extracted beam.