A simulation study of two-dimensional anti-scatter grid in container CT inspection system

Zou Wei; Zhu Guoping; Ling Yunlong; Zong Chunguang; Liu Bicheng; Yi Xi; Zhang Yiming; Deng Yanli; Li Junli

doi:10.11884/HPLPB202335.220421

Volume 35 Issue 8

Jul. 2023

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Article Navigation > High Power Laser and Particle Beams > 2023 > 35(8): 086001

Guo Qi, Fu Peng, Jiang Li. Design of temperature compensation for Hall sensor[J]. High Power Laser and Particle Beams, 2017, 29: 046003. doi: 10.11884/HPLPB201729.160466

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Zou Wei, Zhu Guoping, Ling Yunlong, et al. A simulation study of two-dimensional anti-scatter grid in container CT inspection system[J]. High Power Laser and Particle Beams, 2023, 35: 086001. doi: 10.11884/HPLPB202335.220421

Guo Qi, Fu Peng, Jiang Li. Design of temperature compensation for Hall sensor[J]. High Power Laser and Particle Beams, 2017, 29: 046003. doi: 10.11884/HPLPB201729.160466

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A simulation study of two-dimensional anti-scatter grid in container CT inspection system

doi: 10.11884/HPLPB202335.220421

1.
Nuctech Company Limited, Beijing 100084, China
2.
Department of Engineering Physics, Tsinghua University, Beijing 100084, China

Received Date: 2022-12-22
Accepted Date: 2023-03-28
Rev Recd Date: 2023-04-27

Available Online: 2023-05-15

Publish Date: 2023-08-15

Abstract

Abstract

Based on Nuctech radiography Monte Carlo simulation software NucRPD, three methods are developed to analyze the effect of the two-dimensional anti-scatter grid in the container CT inspection system with a 9MeV accelerator: target crystal pen tag method, scattered component tag method, and tomography image reconstruction method. Calculation results of the three methods all show that the profit of the two-dimensional anti-scatter grid in reducing scattered X-rays in this container CT inspection system is limited. It is suggested that the two-dimensional anti-scatter grid not to be used in the subsequent engineering implementation, which will greatly reduce not only the mechanical design difficulty of the detector and rotating gantry, but also the engineering cost.
- Monte Carlo simulation,
- container CT inspection system,
- two-dimensional anti-scatter grid,
- NucRPD,
- tomography image reconstruction

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References

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