Development of small electron curtain accelerator for sterilization of the surface of packing case in food cold chain

Li Zhongping; Yang Min; Zong Yang; Cao Shuchun; Shen Xiaokang; Han Fangbing; Zhang Kewu

doi:10.11884/HPLPB202335.220303

Volume 35 Issue 8

Jul. 2023

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Article Navigation > High Power Laser and Particle Beams > 2023 > 35(8): 084002

Wang Li, Li Liejuan, Melike Mohamedsedik, et al. Enhancement of nonlinear chirped frequency on electron-positron pair production in the potential well[J]. High Power Laser and Particle Beams, 2023, 35: 012003. doi: 10.11884/HPLPB202335.220066

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Li Zhongping, Yang Min, Zong Yang, et al. Development of small electron curtain accelerator for sterilization of the surface of packing case in food cold chain[J]. High Power Laser and Particle Beams, 2023, 35: 084002. doi: 10.11884/HPLPB202335.220303

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Development of small electron curtain accelerator for sterilization of the surface of packing case in food cold chain

doi: 10.11884/HPLPB202335.220303

Li Zhongping^{1, 2, 3
,},
Yang Min¹,
Zong Yang^{1, 2},
Cao Shuchun^{1, 2, 3},
Shen Xiaokang^{1, 2, 3},
Han Fangbing³,
Zhang Kewu³

1.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
Lanzhou Kejin ESAFE Radiation Technology Co Ltd, Lanzhou 730000, China

Received Date: 2023-01-13
Accepted Date: 2023-05-16
Rev Recd Date: 2023-04-26

Available Online: 2023-05-19

Publish Date: 2023-08-15

Abstract

Abstract

An electron beam radiation device for sterilization of the packing box surface was developed successfully at Institute of Modern Physics (IMP), and the reliability test of 8 h was achieved for industrial application. Six electron curtain accelerators were installed in the sterilization transport line for processing the six whole surfaces of the box. This paper introduces the design of the electron curtain accelerator. The E-gun code was used to compute the trajectories of the electron beam, and it is proved valid with experimental results. The high voltage insulating structure is optimized based on CST software to improve the uniformity of the electric field and decrease the numbers of the high voltage breakdown. Finally, the radiation dose distribution was tested and the inhomogeneity is less than 10%, which meets the requirement for the industrial application.
- sterilization,
- electron curtain accelerator,
- cathode,
- nonuniformity of beam

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References

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