Electron Linear Accelerator Two-dimensional Scanning High Energy X-ray Irradiation System

Abstract

The invention is an X-ray irradiation system based on an electron linear accelerator as an electron beam source, equipped with a two-dimensional scanning deflection coil magnetic ring, a super-large-area transmission X-ray conversion target, and an extended irradiation system with a horizontal repeated return type sample transfer mechanism The protection room can be used for continuous automatic irradiation treatment of samples in and out of Chinese patent medicines, food, flowers, and other items that require ionizing radiation irradiation for sterilization, insecticide, and disinfection. The invention has the advantages of high radiation conversion efficiency, high radiation intensity, strong radiation penetrating power, continuous irradiation and automatic entry and exit of samples, good uniformity of irradiation dose, good radiation protection of the system, and no environmental threats related to radionuclides. The invention can be used to replace the radioactive nuclear irradiation equipment widely used at present, so as to completely get rid of the dependence of the irradiation industry on nuclear irradiation sources and eliminate the potential threat of radioactive nuclear pollution to the environment.

Description

technical field [0001] The invention mainly relates to a new type of special equipment for ionizing radiation irradiation, in particular to a two-dimensional scanning high-energy X-ray irradiation system of an electron linear accelerator, which belongs to the technical field of ionizing radiation irradiation equipment. Background technique [0002] Utilizing the strong penetrability of ionizing radiation and the biological effect of radiation dose on organisms, human beings have widely used nuclear radiation technology since the last century with the slogan of peaceful use of nuclear energy, such as: chemical plastic modification, food preservation, articles Disinfection, sterilization and insecticide, research on the biological effects of irradiation, blood product processing (to prevent blood transfusion reactions) and other application fields have also achieved great social and economic benefits. Therefore, nuclear radiation sources for irradiation are widely used, especi...

AI Technical Summary

Problems solved by technology

But because it is different from the isotropic irradiation of radioactive nuclear gamma rays, and also has a larger radiation angle distribution than the X-rays produced by ordinary tens of kilovolts and hundreds of kilovolts of electrons, the main part of this high-energy X-ray photon is generated Almost all of them radiate in the direction close to the direction of the incident electron flight, and the irradiation angle is small, so it cannot be used simply and effectively for the irradiation of larger packaged samples

In addition, due to the strong penetrating ability of the high-energy X-rays generated, the radiation protection of the equipment is far more complicated than that of the electron linear accelerator. Due to the limitation of technological development, the current electron accelerator manufacturers have not yet made sufficient efforts in the research and development of the high-energy X-ray irradiation system. The technical input of the company has made it possible to replace the high-energy X-ray irradiation system of the high-activity Co60 nuclear irradiation station. The product has not yet appeared and reached the hands of users.

However, due to environmental protection requirements, all countries are restricting the import and export of nuclear radiation source devices. This situation will inevitably affect the promotion of radiation technology applications.

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