Reflection type X-ray irradiator

Abstract

The utility model relates to the field of irradiator, in particular to a reflective X-ray irradiator. The irradiation instrument comprises an X-ray source, an irradiation bin and a reflection box, the X-ray source is located above the irradiation bin, and the reflection box is installed in the irradiation bin. According to the utility model, the X-rays are reflected, refracted and scattered through the reflection box, so that the irradiation dose at the edge and the lower part of the experimental animal container can be compensated, the dose difference of the X-rays in the reflection box is small, and the uniformity of the irradiation dose received by the experimental animal is improved.

Description

Technical Field

[0001] The utility model relates to the field of irradiators, in particular to a reflection type X-ray irradiator. Background Art

[0002] X-ray irradiator is an analytical instrument used in the field of biology. It is widely used in applications such as DNA damage, tumor research, immunology, radiation disinfection, blood irradiation, virus inactivation, stem cell research, organ transplantation, drug development, bone marrow transplantation, cell induction, etc. It has become an important scientific research instrument in the field of life science research.

[0003] X-ray irradiators use high-energy X-rays generated by X-ray tubes to irradiate organisms, producing ionization and excitation effects, causing irreversible damage and destruction to the irradiated organisms and even their DNA, thereby achieving specific biological purposes.

[0004] When using an X-ray irradiator to irradiate experimental animals, due to the edge effect of the X-ray irradiator's irradiation dose, the dose values ​​within the irradiation range vary greatly, resulting in large differences in the doses received by the experimental animals, which affects the accuracy of the experimental results and increases the repeatability of the experiment. Therefore, how to improve the dose uniformity within the irradiation range is one of the difficulties faced by the irradiator. Utility Model Content

[0005] In order to overcome the disadvantage of poor dose uniformity within the irradiation range of the existing irradiator, the utility model provides a reflection type X-ray irradiator.

[0006] The utility model solves the technical problem by adopting a technical solution: a reflective X-ray irradiator, comprising an X-ray source, an irradiation chamber, and a reflective box, wherein the X-ray source is located above the irradiation chamber, and the reflective box is installed in the irradiation chamber.

[0007] According to another embodiment of the utility model, the reflective box further includes a box body, a reflective plate, and a cover plate. The inner side wall and the inner bottom surface of the box body are both provided with reflective plates, and the top opening of the box body is provided with a cover plate.

[0008] According to another embodiment of the utility model, the reflecting plate is further comprised of a lead plate.

[0009] According to another embodiment of the present invention, adjacent reflection plates are further connected together by welding.

[0010] According to another embodiment of the utility model, the cover plate is further fixedly connected to the box body by screws.

[0011] According to another embodiment of the present invention, the box body is further made of lead boron carbide high molecular polyethylene material.

[0012] The beneficial effect of the utility model is that the utility model reflects, refracts and scatters X-rays through the reflection box, so as to compensate for the radiation dose at the edge and bottom of the experimental animal container, so that the X-ray dose difference in the reflection box is smaller, thereby improving the uniformity of the radiation dose received by the experimental animals. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional view of the reflective box of the utility model;

[0016] In the figure, 1. X-ray source, 2. irradiation chamber, 3. reflection box, 31. box body, 32. reflection plate, 33. cover plate. DETAILED DESCRIPTION

[0017] Figure 1 It is a structural schematic diagram of the utility model; Figure 2 It is a cross-sectional view of the reflection box of the utility model.

[0018] As attached Figure 1 As shown, a reflection type X-ray irradiator comprises an X-ray source 1, an irradiation chamber 2, and a reflection box 3. The X-ray source 1 is located above the irradiation chamber 2, and the reflection box 3 is installed in the irradiation chamber 2.

[0019] As attached Figure 2 As shown, the reflective box 3 includes a box body 31 , a reflective plate 32 , and a cover plate 33 . The inner side wall and the inner bottom surface of the box body 31 are both provided with reflective plates 32 , and the top opening of the box body 31 is provided with a cover plate 33 .

[0020] The reflector 32 is a lead plate. Lead is a metal with high density and high atomic number. When X-rays pass through the lead plate, due to the high density of lead, it will reflect, refract, and scatter the X-rays, causing the direction of the X-rays to deflect or distort, which can compensate for the radiation dose at the edge and bottom of the experimental animal container, thereby making the difference in X-ray dose within the reflector box 3 smaller, and the radiation dose received by the experimental animals more uniform.

[0021] Adjacent reflecting plates 32 are fixedly connected together by welding.

[0022] The cover plate 33 is fixedly connected to the box body 31 by screws.

[0023] The box body 31 is made of lead-containing boron carbide high molecular polyethylene material. This material has good corrosion resistance, high temperature resistance, waterproofness, wear resistance and mechanical processing performance, and also has the function of shielding and reflecting X-rays. It is light in weight and can be processed into shape by mechanical processing.

[0024] The working method of the present application is as follows: place the experimental animal container in the box body 31, and then cover and fix the cover plate 33. Then the X-ray source 1 emits X-rays toward the reflective box 3 below. After the rays are irradiated on the reflective plate 32, they reflect, refract, and scatter the X-rays, making the radiation dose received by the animal more uniform. The present application forms a uniform irradiation environment with a dose uniformity of more than 95%, which greatly improves the accuracy and repeatability of the experimental results. In addition, the device has a simple structure, low manufacturing cost, and is easy to install and maintain.

Claims

1. A reflection X-ray irradiator, characterized in that: It comprises an X-ray source (1), an irradiation chamber (2), and a reflection box (3), wherein the X-ray source (1) is located above the irradiation chamber (2), and the reflection box (3) is installed in the irradiation chamber (2); The reflective box (3) comprises a box body (31), a reflective plate (32), and a cover plate (33); the inner side wall and the inner bottom surface of the box body (31) are both provided with the reflective plate (32); and the top opening of the box body (31) is provided with the cover plate (33).

2. The reflection X-ray irradiator according to claim 1, characterized in that: The reflecting plate (32) is a lead plate.

3. The reflection X-ray irradiator according to claim 1, characterized in that: Adjacent reflecting plates (32) are fixedly connected together by welding.

4. The reflection X-ray irradiator according to claim 1, characterized in that: The cover plate (33) is fixedly connected to the box body (31) by means of screws.

5. The reflection X-ray irradiator according to claim 1, characterized in that: The box body (31) is made of lead-containing boron carbide high molecular polyethylene material.

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