【摘 要】
：
在230 MeV超导回旋加速器中,Trim-rod与Phase Slit安装在中心区附近,将Phase Slit放在内侧有降低活化、易于维护等好处,但同时将Trimrod放在外侧可能导致Trim-rod调节径向对
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在230 MeV超导回旋加速器中,Trim-rod与Phase Slit安装在中心区附近,将Phase Slit放在内侧有降低活化、易于维护等好处,但同时将Trimrod放在外侧可能导致Trim-rod调节径向对中的效果变差。本文使用束流动力学模拟研究中心区Trim-rod安放位置与束流对中效果的关系。根据经验,Trim-rod产生一次谐波修正径向振荡的线性性质较好,因此可采用相反的研究思路:粒子对中注入,通过一定幅度的一次谐波场后会产生径向振荡,这个径向振荡幅值就是该幅度
In the 230 MeV superconducting cyclotron, the Trim-rod and Phase Slit are mounted near the center, and placing the Phase Slit on the inside reduces activation and ease of maintenance, while placing the Trimrod on the outside may cause the Trim-rod adjustment The effect on the alignment worsened. In this paper, the beam dynamics simulation is used to study the relationship between the position of Trim-rod and the effects of beam centering. According to experience, Trim-rod produce a harmonic correction of the radial oscillation of the linear nature of the better, so the opposite can be used to study: particle injection, through a certain degree of first harmonic field will produce radial oscillations, the diameter The magnitude of the oscillation is the magnitude
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