CYCIAE型回旋加速器负离子剥离引出的光学行为研究

为了CYCIAE型回旋加速器的剥离靶轴线及旋转角的概念设计,必须对负离子剥离后的光学特性进行研究,基于根据CYCIAE型回旋加速器剥离引出特点编制的程序CYCRS,计算了CYCIAE30加速器不同能量束流引出剥离点的位置,并与实际位置进行比较,证明计算所用的理论及方法是正确的,同时,考察了剥离后的束流空间运动的光学特性.在此基础上,确定了CYCIAE70回旋加速器能量为35—70MeV的束流引出剥离点位置.

The Optical Property Research of Stripping Extraction ofNagtive Ion Beam for Type CYCIAE Cyclotrons

In order to make the concept design of the axial position and the rotation angleof the stripping target of type CYCIAE cyclotrons,the optical property of H-ionstripped has been investigated. By using the program CYCTRS,the positions ofstripping points for the beam with different energies have been calculated and compared with practical positions of CYCIAE30 to show that the theory and the methodused in calculation are reasonable.Also,the optical property of the H+ beam inspace Under the fringing magnetic field of the cyclotron is investigated.Then,the positions of stripping points for the beam with different energies of CYCLE70 are determined.