High-energy CT system with 10 lp/mm spatial resolution

Liu Qinghua; Li Jing; Shan Lijun; Xiao Dexin; Pan Qing; Liu Yu; Wang Hanbin; Hu Dongcai; Zhang Peng; Li Shoutao; Wang Jianxin; Zhang Demin; Yan Longgang; Zhang Xiaoli; Gan Kongyin; Zhang Chengxin; Li Peng; Shen Xuming; Bo Wei; Chen Yunbin; Li Xiaohui; Wang Shuaihua; Yu Yong; Chen Hao; Hu Xiutai; Ma Guowu; Zhou Kui; Zhou Zheng; Wang Yuan; Yang Xingfan; Wu Dai; Li Ming; Chen Menxue; Hu Jinguang; Zhao Jianheng; Fan Guobin

doi:10.11884/HPLPB202234.220322

Volume 34 Issue 12

Nov. 2022

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Abstract

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Article Navigation > High Power Laser and Particle Beams > 2022 > 34(12): 124001

Wang Xinmei, Zheng Zebin, Fan Yingbao, et al. A focus automatic positioning system of high-power laser beam based on plasma ultraviolet radiation[J]. High Power Laser and Particle Beams, 2019, 31: 091006. doi: 10.11884/HPLPB201931.190252

Citation:

Liu Qinghua, Li Jing, Shan Lijun, et al. High-energy CT system with 10 lp/mm spatial resolution[J]. High Power Laser and Particle Beams, 2022, 34: 124001. doi: 10.11884/HPLPB202234.220322

Citation:

Liu Qinghua, Li Jing, Shan Lijun, et al. High-energy CT system with 10 lp/mm spatial resolution[J]. High Power Laser and Particle Beams, 2022, 34: 124001. doi: 10.11884/HPLPB202234.220322

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High-energy CT system with 10 lp/mm spatial resolution

doi: 10.11884/HPLPB202234.220322

1.
Institute of Applied Electronics, CAEP, Mianyang 621900, China
2.
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
3.
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
4.
Institute of Systems Engineering, CAEP, Mianyang 621900, China
5.
Institute of Materials, CAEP, Jiangyou 621907, China
6.
Jianghe Chemical Technology Co.，Ltd. Yichang 444200，China
7.
China Academy of Engineering Physics, Mianyang 621900, China

Received Date: 2022-10-01
Rev Recd Date: 2022-10-10

Available Online: 2022-11-02

Publish Date: 2022-11-02

Abstract

Abstract

Based on the photocathode S-band electron linac, a high-energy (9 MeV) micro-focus CT system named “Jingwei” was built. The focal-point is less than 100 μm, and the 7 h dose fluctuation is as low as 1.6%. An initial imaging experiment was also carried out. The focal spot of the dual-wire image quality meter clearly distinguished the 13D wire with a wire diameter of 0.05 mm, and the CT spatial resolution measured by a test card is better than 10 lp/mm. The electron beam energy of the system is also adjustable from 6 MeV to 18 MeV.
- high-energy micro-focus X-ray source,
- high-energy industrial CT,
- linac,
- photocathode

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References(4)

References

[1]	李鹏, 王建新, 肖德鑫, 等. 9 MeV, 小于0.1 mm微焦点X射线源验证实验[J]. 强激光与粒子束, 2020, 32:054001 doi: 10.11884/HPLPB202032.200086 Li Peng, Wang Jianxing, Xiao Dexin, et al. Verification experiment of micro focus X-ray source with energy 9 MeV and beam size less than 0.1 mm[J]. High Power Laser and Particle Beams, 2020, 32: 054001 doi: 10.11884/HPLPB202032.200086
[2]	Hu Dongcai, Zhou Zheng, Wang Jianxin, et al. High-energy high-dose microfocus X-ray computed tomography driven by high-average-current photo-injector[J]. Journal of X-Ray Science and Technology, 2022, 30(1): 1-12.
[3]	谭龙升, 李晓辉, 魏存峰, 等. 闪烁体特性对 X 射线探测器成像质量影响研究[J]. 中国体视学与图像分析, 2022, 27(2):89-95 Tan Longsheng, Li Xiaohui, Wei Cunfeng, et al. Effects of scintillation characteristics on the imaging quality of X-ray detectors[J]. Chinese Journal of Stereology and Image Analysis, 2022, 27(2): 89-95
[4]	Xu Xieming, Wu Yiheng, Zhang Yi, et al. Two-dimensional perovskite single crystals for high-performance X-ray imaging and exploring MeV X-ray detection[J]. Energy & Environmental Materials, 2022: e12487.

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