,Areal density and spatial resolution of high energy electron radiography

• 作 者: Jiahao Xiao Zimin Zhang Shuchun Cao Ping Yuan Xiaokang Shen Rui Cheng Quantang Zhao Yang Zong Ming Liu Xianming Zhou Zhongping Li Yongtao Zhao Chuanxiang Tang Wenhui Huang Yingchao Du Wei Gai
• 机 构: Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China“,”University of Chin
• 出 处: 中国物理B（英文版）
• 发表日期: 2018年3期
• 关键词: high energy density matter high energy electron radiography areal density resolu

Ultrafast imaging tools are of great importance for determining the dynamic density distribution in high energy density (HED) matter.In this work,we designed a high energy electron radiography (HEER) system based on a linear electron accelerator to evaluate its capability for imaging HED matter.40 MeV electron beams were used to image an aluminum target to study the density resolution and spatial resolution of HEER.The results demonstrate a spatial resolution of tens of micrometers.The interaction of the beams with the target and the beam transport of the transmitted electrons are further simulated with EGS5 and PARMELA codes,with the results showing good agreement with the experimental resolution.Furthermore,the experiment can be improved by adding an aperture at the Fourier plane.