Observation and mitigation of image distortion in high energy electron radiography

• 作者： Li, Haoqing ¹ Sheng, Liang ² Zhang, Changqing ¹ Du, Yingchao ¹ Zhou, Zheng ³ Weng, Xiufeng ² Xiao, Jiahao ^4,5 Yin, Hongqiao ² Sun, Bin ² Wei, Kun ² Li, Yang ² Duan, Baojun ² Liu, Yongtang ² Zhang, Yanhong ² Zhang, Mei ² Song, Yan ² Zhang, Xiaodong ² Liu, Jun ² Fu, Zhuming ² Xu, Qing ² Du, Xue ¹ Gao, Jianpeng ¹ Wang, Xinyi ² Tan, Xinjian ² Hei, Dongwei ²
• 作者单位：
  1.  Department of Engineering Physics, Tsinghua University, Beijing 100084, China.

  2.  State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi’an 710024, China.

  3.  Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621900,China.

  4.  Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China

  5.  Zhongke Hefei Institutes of Collaborative Reserarch and Innovation for Intelligent Agriculture, Hefei 231131, China
• 提交时间：2023-06-01

摘要: Image distortion caused by angular misalignment of quadrupole magnets in high energy electron radiography is studied systematically. We propose that the distortion originates from the coupling of the motions of electron in transverse directions based on theoretical analysis via transfer matrix method. The relative angular rotation between the second and third magnetic quadrupoles is identified to be the main contributor to image distortion, which is verified by both beam dynamics simulation and experimental outcomes. In addition, different strategies to mitigate this image distortion are explored, including magnets online tuning, using higher beam energy and larger magnification factor. This study provides some criteria for designing experiments, and paves the way to achieve higher image precision.

• 来自： 李豪卿
• 分类： 核科学技术 >> 辐射物理与技术
• 说明： 已被期刊Nuclear Science and Techniques接收，稿件编号：NST-2022-0437.R1；
• 投稿状态： 已被期刊接收
• 引用： ChinaXiv:202306.00012 (或此版本 ChinaXiv:202306.00012V1)
  DOI:10.12074/202306.00012V1
  CSTR:32003.36.ChinaXiv.202306.00012.V1
• 推荐引用方式： Li, Haoqing,Sheng, Liang,Zhang, Changqing,Du, Yingchao,Zhou, Zheng,Weng, Xiufeng,Xiao, Jiahao ,Yin, Hongqiao,Sun, Bin ,Wei, Kun,Li, Yang,Duan, Baojun,Liu, Yongtang,Zhang, Yanhong,Zhang, Mei,Song, Yan,Zhang, Xiaodong,Liu, Jun,Fu, Zhuming,Xu, Qing,Du, Xue,Gao, Jianpeng,Wang, Xinyi,Tan, Xinjian,Hei, Dongwei.(2023).Observation and mitigation of image distortion in high energy electron radiography.中国科学院科技论文预发布平台.doi:10.12074/202306.00012V1 (点此复制)