Scatter screen type electronic beam radiator

Abstract

The utility model relates to a scattering screen type electron beam irradiation device, which belongs to the technical field of radiation processing. It includes an electron linear accelerator and a light-limiting tube. Its structural feature is that a flange plate connected to the electron linear accelerator is arranged in the middle of the upper cover of the light limiting tube, and a water-cooled double-layer titanium window assembly corresponding to the drift tube of the accelerator is inlaid at the bottom of the flange plate. Two layers of support plates are supported on the bottom plane of the flange, and thin metal scattering sheets are arranged in the middle of each support plate. The light-limiting tube is composed of double walls to form a cooling water space, and the light-limiting tube can be filled with cooling gas. The water-cooled double-layer titanium window assembly is composed of a water-cooled box cover and a water-cooled box base to form the second cooling water space. Compared with the prior art, the present invention not only has simple structure, no scanning box and attached ion pump, scanning electromagnet and power supply, but also is very beneficial to the self-shielding and miniaturization of the irradiation device, and can improve the working efficiency.

Description

technical field [0001] The invention relates to the technical field of radiation processing, in particular to a scanning device using an electron linear accelerator as a radiation source. Background technique [0002] Electron beam irradiation treatment technology is a treatment technology that uses the ionization ability and bremsstrahlung effect of electron beams to cause certain biological and physical effects on the irradiated items, thereby performing sterilization and deworming or changing the physical properties of the items. In the prior art, accelerators are generally used to generate electron beams with a certain energy, and these accelerators include: traveling wave or standing wave electron linear accelerators, DC high voltage accelerators, high frequency high voltage accelerators, and the like. Small-scale electron beam irradiation accelerators generally use electron linear accelerators to accelerate electrons. The accelerated electrons are scanned and drifted b...

AI Technical Summary

Problems solved by technology

The disadvantage of this traditional scan box external ion pump mode is that it is large in size and complex in shape, which is not conducive to the miniaturization and self-shielding design of the radiation accelerator.

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