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4 results on '"Chuanxiang Tang"'

2. Areal density and spatial resolution of high energy electron radiography

Author

Quantang Zhao, Li Zhongping, Ming Liu, Wenhui Huang, X. Y. Shen, Ping Yuan, Yingchao Du, Yongtao Zhao, Yang Zong, Wei Gai, Shuchun Cao, Jiahao Xiao, Zimin Zhang, Rui Cheng, Xianming Zhou, and Chuanxiang Tang

Subjects
High energy, Materials science, business.industry, Radiography, General Physics and Astronomy, Electron, 01 natural sciences, 010305 fluids & plasmas, Optics, 0103 physical sciences, Area density, 010306 general physics, business, Image resolution
Published
2018

3. Terahertz coherent transition radiation based on an ultrashort electron bunching beam

Author

Wenxin Liu, Wenhui Huang, Lixin Yan, Yingchao Du, Chuanxiang Tang, and Dai Wu

Subjects
Physics, business.industry, Terahertz radiation, System of measurement, Physics::Optics, General Physics and Astronomy, Electron, Photomixing, Interferometry, Optics, Transition radiation, business, Beam (structure), Wave power
Abstract

The experimental result of terahertz (THz) coherent transition radiation generated from an ultrashort electron bunching beam is reported. During this experiment, the window for THz transmission from ultrahigh vacuum to free air is tested. The compact measurement system which can simultaneously test the THz wave power and frequency is built and proofed. With the help of improved Martin—Puplett interferometer and Kramers—Krong transform, the longitudinal bunch length is measured. The results show that the peak power of THz radiation wave is more than 80 kW, and its radiation frequency is from 0.1 THz to 1.5 THz.

Published
2011

4. Areal density and spatial resolution of high energy electron radiography.

Author

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, and Wei Gai

Subjects
PARTICLE accelerators, PARTICLE physics, PROTON accelerators, RESONANCE accelerators, HIGH energy electron diffraction
Abstract

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. [ABSTRACT FROM AUTHOR]

Published
2018
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