| 高能电子成像研究进展 |
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| 引用本文： | 赵全堂,张子民,曹树春,程锐,申晓康,杜应超,赵永涛.高能电子成像研究进展[J].原子能科学技术,2019,53(9):1651-1655. |
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| 作者姓名： | 赵全堂 张子民 曹树春 程锐 申晓康 杜应超 赵永涛 |
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| 作者单位： | 中国科学院 近代物理研究所，甘肃 兰州730000；清华大学 工程物理系，北京100084；西安交通大学 理学院，陕西 西安710049 |
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| 摘 要： | 本文通过蒙特卡罗程序EGS模拟研究了电子束与靶的相互作用，对成像束流光学进行了设计，并对束流匹配对空间分辨的影响、超快分束技术和产生横向均匀束技术等进行了模拟研究。实验验证了高能电子成像能达到μm量级的空间分辨，并可实现厚度、密度分辨及明-暗场成像等特点。同时给出了后续实验及研究计划，希望进一步提高高能电子成像性能并拓宽其应用领域。
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| 关 键 词： | 高能电子成像 成像实验研究 成像模拟研究 束流调控 |
Status and Progress of High Energy Electron Radiography |
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| ZHAO Quantang,ZHANG Zimin,CAO Shuchun,CHENG Rui,SHEN Xiaokang,DU Yingchao,ZHAO Yongtao.Status and Progress of High Energy Electron Radiography[J].Atomic Energy Science and Technology,2019,53(9):1651-1655. |
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| Authors: | ZHAO Quantang ZHANG Zimin CAO Shuchun CHENG Rui SHEN Xiaokang DU Yingchao ZHAO Yongtao |
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| Affiliation: | Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;Department of Engineering Physics, Tsinghua University, Beijing 100084, China;School of Science, Xi’an Jiaotong University, Xi’an 710049, China |
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| Abstract: | The interaction between electron beam and target was studied by code EGS simulation. The imaging lens optics was designed and the effect of beam matching on the spatial resolution, ultrafast beam split and transverse uniform beam generation were studied. Through experimental study, the micrometer spatial resolution of high energy electron radiography (HEER) was reached and it could achieve target thickness and density resolutions, and bright-dark field imaging. Furthermore, the future plan of HEER program was shown in order to further improve the HEER technology and extend the HEER application filed. |
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| Keywords: | high energy electron radiography radiography experiment study radiography simulation study beam manipulation |
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