Multi-parameters optimization and matching analysis simulation studies of the linac for high-energy electron radiography

Multi-parameters optimization and matching analysis simulation studies of the linac for high-energy electron radiography
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高能电子射线照相直线加速器多参数优化及匹配分析仿真研究

DOI:
10.1016/j.nima.2021.165905
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发表时间:
2021-10
期刊:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子:
--
通讯作者:
Ping Yuan
Ping Yuan
中科院分区:
其他
文献类型:
--
作者:
Jia Li;Quantang Zhao;Yang Zong;Zhaohui Ran;Shuchun Cao;Xiaokang Shen;Zimin Zhang;Ping Yuan

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用于高能电子照相实验研究的电子直线加速器由中国科学院现代物理研究所研制。目前,直线加速器已经在运行阶段进行了一些Heer实验,并提出了进一步的要求,即更低的束流发射度、更低的能量分布和更好的出口均匀性,以提高射线成像质量。本文利用通用粒子跟踪器(GPT)程序在当前束线设置的基础上进行全局优化研究。对α磁铁的束流注入角和束流刮刀的模型进行了重新优化。综合考虑了各因素对束流参数的影响,特别是空间电荷效应对束流参数的影响进行了仿真分析。为了抑制α磁体的光束质量劣化,本文率先研究了α磁体的横向相空间特性与发射度增长的关系,总结了阿尔法磁体的光束匹配规律。文中给出了详细的仿真和分析研究。
The electron linear accelerator, dedicated for high-energy electron radiography (HEER) experimental studies, was developed by the Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS). At present, some HEER experiments have been carried out in the operation stage and further requirements are put forward for lower beam emittance, lower energy spread and better uniformity at the exit of LINAC to enhance radiography quality. This paper uses the General Particle Tracer (GPT) code to perform global optimization studies based on the current beam line setup. The beam injection angle of alpha magnet and the model of the beam scraper are re-optimized. The influence of each factor on the beam parameters is comprehensively considered, and especially the influence of the space charge effect was analyzed by simulation studies. In order to suppress the deterioration of the beam quality in the alpha magnet, this paper take the lead in researching the relationship of the transverse phase space characteristics and the emittance growth and summarizes the rules for beam matching at the alpha magnet. The detailed simulation and analysis studies are presented in this paper.
用于高能电子射线照相研究的直线加速器的设计和仿真
DOI: 10.1016/j.nima.2018.09.133
发表时间: 2018-12
期刊: Nuclear Inst. and Methods in Physics Research, A
影响因子: --
作者:
Yunliang Zhu;Ping Yuan;Shuchun Cao;Ming Liu;Yang Zong;Quantang Zhao;Jingjing Zhang;Xiaokang Shen;Zimin Zhang
通讯作者: Zimin Zhang
DOI: 10.1103/physreve.51.1453
发表时间: 1995-02
期刊: Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
影响因子: --
作者:
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DOI: 10.1063/1.1718372
发表时间: 1963-04
影响因子: 1.6
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期刊: --
影响因子: --
作者:
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通讯作者: M. Borland
DOI: --
发表时间: 2010
期刊: --
影响因子: --
作者:
H. Hama
通讯作者: H. Hama