PROGRAM FOR HIGH-INTENSITY RFQ DESIGN WITH MATCHED AND EQUIPARTITIONED DESIGN STRATEGY
PROGRAM FOR HIGH-INTENSITY RFQ DESIGN WITH MATCHED AND EQUIPARTITIONED DESIGN STRATEGY
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发表时间：
2018
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通讯作者：
H. Li;Z. Wang;Y. Lu;M. Easton;K. Zhu;Q. Fu;P. Gan;Q. Tan
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作者：
H. Li;Z. Wang;Y. Lu;M. Easton;K. Zhu;Q. Fu;P. Gan;Q. Tan
北京在线同位素分离（BISOL）设施的氘核驱动加速器将加速并向目标发射能量为 40 MeV 的 20 mA 氘核束。作为驱动器直线加速器的注入器，需要 RFQ 将 20 mA 氘核束聚束并加速到 3 MeV，并具有非常高的光束质量。为了满足这些要求并减少优化时间，开发了名为 RFQEP 的 RFQ 设计程序来生成 PARMTEQM 代码的输入文件。在该计划中，采用“匹配和均分”设计策略来防止光环形成并避免高强度询价中的结构共振。本文研究了详细的设计方面，并给出了用该代码设计的询价的仿真结果，表明了新程序的准确性和优点。
The deuteron driver accelerator of the Beijing Isotope Separation On-Line (BISOL) facility will accelerate and deliver a 20 mA deuteron beam to the targets with an energy of 40 MeV. As the injector of the driver linac, an RFQ is required to bunch and accelerate the 20 mA deuteron beam to 3 MeV with very high beam quality. In order to fulfil these requirements and reduce time spent on optimization, an RFQ design program named RFQEP has been developed to generate the input file for the PARMTEQM code. In this program, the ‘matched and equipartitioned’ design strategy is adopted to prevent halo formation and to avoid structure resonances in high intensity RFQs. The detailed design aspects are studied in this paper and simulation results are given for an RFQ designed by this code, which shows the accuracy and the merits of the new program.