Design and simulation of a LINAC for high energy electron radiography research

Design and simulation of a LINAC for high energy electron radiography research
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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
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发表时间:
2018-12
期刊:
Nuclear Inst. and Methods in Physics Research, A
影响因子:
--
通讯作者:
Zimin Zhang
Zimin Zhang
中科院分区:
其他
文献类型:
--
作者:
Yunliang Zhu;Ping Yuan;Shuchun Cao;Ming Liu;Yang Zong;Quantang Zhao;Jingjing Zhang;Xiaokang Shen;Zimin Zhang

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我们设计了一个用于高能电子射线照相(HEER)研究的电子直线加速器(LINAC),它由两个不同的枪组成,一个是电子阴极或光阴极RF枪,用于诊断不同的目标。本文介绍了基于S波段电子枪的直线加速器的仿真研究和优化设计。LINAC能够产生具有低能量扩展(0.13%)和大微聚束电荷(143 pC)的亚皮秒电子脉冲。利用不同的束流动力学模拟程序对直线加速器的束流动力学进行了研究和优化。还报道了α磁体中入口孔引起的场失真。空间电荷效应的研究一般粒子示踪(GPT)程序。结果表明,空间电荷力对低能电子直线加速器的束流动力学特性有重要影响。
We designed an electron linear accelerator (LINAC) for High Energy Electron Radiography (HEER) studies, which consists of two different guns, either a thermionic cathode or a photocathode RF gun, for diagnosing different targets. In this paper, we present the simulation studies and optimization of the LINAC based on an S-band thermionic RF gun. The LINAC is capable of generating sub-picosecond electron pulses with low energy spread (0.13%) and large micro-bunch charge (143 pC). The beam dynamics of the LINAC is studied and optimized by different beam dynamics simulation codes. The entrance hole induced field distortion in the alpha magnet is also reported. The space charge effects are studied by the General Particle Tracer (GPT) code. The results showed that the space charge forces had a significant influence on beam dynamics in such a low energy LINAC.
DOI: 10.1103/physrevlett.73.967
发表时间: 1994-08
影响因子: 8.6
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