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在研究兰州重离子冷却储存环(HIRFLCSR)纵向相振荡运动特性的基础上,对主环(CSRm)内重离子的加速过程进行了模拟研究。选取由扇聚焦回旋加速器(SFC)剥离注入的能量为7MeV/u,动量散度为±0.5%的12C6+典型离子,模拟了CSRm内束流的加速过程,加速的最终能量为1GeV/u。在加速过程中采用了变换谐波的方式,解决了较低能量下的加速问题。模拟结果给出了不同时刻粒子在纵向相空间的分布以及各主要高频参数随时间的变化曲线。
Based on the study of the longitudinal phase oscillation of HIRFLCSR in Lanzhou, the acceleration of heavy ions in the main ring (CSRm) was simulated. The typical 12C6 + ions with energy of 7MeV / u and momentum divergence of ± 0.5% were stripped by fan focusing cyclotron (SFC) to simulate the accelerating process of beam in CSRm with the final energy of 1GeV / u. In the acceleration process used to transform the harmonic mode, to solve the acceleration problem of lower energy. The simulation results show the distribution of particles in the longitudinal phase space at different times and the curves of the main high frequency parameters with time.