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在考虑束团内粒子之间的空间电荷相互作用力的条件下 ,对日本理化研究所 (RIKEN)现有的一台注入器 (加速常数为K70的AVF型回旋加速器 )中束团的演变过程进行了模拟计算 .模拟结果表明 ,束团的形变、束晕现象同样发生在回旋加速器中 ,不过 ,其产生机制不同于直线加速器 .它不是由共振和混沌引起 ,而是由于粒子的排斥运动和束团内粒子的涡流运动引起的
Considering the space charge interaction between the particles in the bundle, the evolution of bunches in an existing inflator (AVF cyclotron with an acceleration constant K70) of the RIKEN was considered The simulation results show that the deformation and beam halo of the bunches also occur in the cyclotron but the mechanism is different from that of the linear accelerator and it is not caused by resonance and chaos but due to the repulsion of the particles and the beam Caused by vortex particles movement