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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research >Lattice design and beam dynamics studies of the high energy beam transport line in the RAON heavy ion accelerator
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Lattice design and beam dynamics studies of the high energy beam transport line in the RAON heavy ion accelerator

机译：RAON重离子加速器中高能束流传输线的晶格设计和束流动力学研究

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摘要

In RAON heavy ion accelerator, beams generated by superconducting electron cyclotron resonance ion source (ECR-IS) or Isotope Separation On-Line (ISOL) system are accelerated by lower energy superconducting linac and high energy superconducting linac. The accelerated beams are used in the high energy experimental hall which includes bio-medical and muon-SR facilities, after passing through the high energy beam transport lines. At the targets of those two facilities, the stable and small beams meeting the requirements rigorously are required in the transverse plane. Therefore the beams must be safely sent to the targets and simultaneously satisfy the two requirements, the achromatic condition and the mid-plane symmetric condition, of the targets. For this reason, the lattice design of the high energy beam transport lines in which the long deflecting sections are included is considered as a significant issue in the RAON accelerator. In this paper, we will describe the calculated beam optics satisfying the conditions and present the result of particle tracking simulations with the designed lattice of the high energy beam transport lines in the RAON accelerator. Also, the orbit distortion caused by the machine imperfections and the orbit correction with correctors will be discussed.
机译：在RAON重离子加速器中，低能超导直线加速器和高能超导直线加速器会加速由超导电子回旋共振离子源（ECR-IS）或同位素分离在线（ISOL）系统产生的束。加速光束通过高能光束传输线后，将在包括生物医学和μon-SR设施在内的高能实验大厅中使用。在这两个设施的目标上，在横断面中需要严格满足要求的稳定小光束。因此，光束必须安全地发送到目标，并同时满足目标的消色差条件和中平面对称条件这两个要求。为此，在RAON加速器中，包括长偏转部分的高能束传输线的晶格设计被认为是重要的问题。在本文中，我们将描述满足条件的计算束光学器件，并使用RAON加速器中高能束传输线的设计晶格，介绍粒子跟踪仿真的结果。另外，还将讨论由机器缺陷引起的轨道畸变以及使用校正器进行的轨道校正。

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