X-ray irradiator with beam limiter

Abstract

The utility model relates to the field of irradiator, in particular to an X-ray irradiator with a beam limiter. The irradiation instrument comprises an X-ray source, a shielding bin and a beam limiting device, the beam limiting device is installed in the shielding bin, and the X-ray source is located above the shielding bin. According to the utility model, large-range group irradiation can be carried out, and the beam limiting device is simple and reliable in installation method. Under a large-range irradiation mode, the uniformity of irradiation dose is improved, and the accuracy and stability of experimental results are ensured.

Description

Technical Field

[0001] The utility model relates to the field of irradiators, in particular to an X-ray irradiator with a beam limiter. 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] In the process of using X-ray irradiators to irradiate experimental animals, in order to achieve local irradiation of experimental animals, local irradiation containers are often used to place experimental animals, and the local irradiation range is controlled by controlling the opening size of the local irradiation container. However, local irradiation containers generally have a small space and cannot irradiate a large range, and the irradiation dose is unstable and uneven. Utility Model Content

[0005] In order to overcome the shortcomings of the existing irradiator, such as small irradiation range and unstable and uneven irradiation, the utility model provides an X-ray irradiator with a beam limiter.

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

[0007] According to another embodiment of the utility model, the beam limiter further includes an upper lead plate, a lower lead plate, a reflector lamp, a filter plate, a reflector plate, and a shell, and the upper lead plate, the lower lead plate, the reflector lamp, the filter plate, and the reflector plate are installed in the shell.

[0008] According to another embodiment of the present invention, the reflector plate further forms an acute angle with the horizontal plane.

[0009] According to another embodiment of the present invention, the angle between the reflector plate and the horizontal plane is 20°.

[0010] According to another embodiment of the present invention, there is further included an acute angle between the filter plate and the reflector plate.

[0011] According to another embodiment of the present invention, the angle between the filter plate and the reflector plate is 40°.

[0012] According to another embodiment of the utility model, a plug plate is further fixed on the shell, and the plug plate matches with a slot in the shielding compartment.

[0013] According to another embodiment of the utility model, two upper lead plates and two lower lead plates are further installed in the shell, a spacing for passing rays is provided between the two upper lead plates, and a spacing for passing rays is provided between the two lower lead plates.

[0014] According to another embodiment of the utility model, it further includes the upper lead plate being slidably connected to the X-axis straight rail in the shell, the lower lead plate being slidably connected to the Y-axis straight rail in the shell, the X-axis straight rail and the Y-axis straight rail are perpendicular to each other, the upper lead plate is connected to the piston rod of electric cylinder one, and the lower lead plate is connected to the piston rod of electric cylinder two.

[0015] The beneficial effect of the utility model is that the utility model can carry out large-scale group irradiation, and the beam limiter installation method is simple and reliable. In the large-scale irradiation mode, the uniformity of the irradiation dose is improved, so that the accuracy and stability of the experimental results are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the beam limiter of the utility model;

[0019] In the figure, 1. X-ray source, 2. shielding chamber, 3. beam limiter, 4. electric cylinder 1, 5. electric cylinder 2, 31. upper lead plate, 32. lower lead plate, 33. reflector lamp, 34. filter plate, 35. reflector plate, 36. shell, 37. plug-in board. DETAILED DESCRIPTION

[0020] Figure 1 It is a structural schematic diagram of the utility model. Figure 2 It is a structural schematic diagram of the beam limiter of the utility model.

[0021] As attached Figure 1 As shown, an X-ray irradiator with a beam limiter includes an X-ray source 1, a shielding chamber 2, and a beam limiter 3. The beam limiter 3 is installed in the shielding chamber 2, and the X-ray source 1 is located above the shielding chamber 2.

[0022] The beam limiter 3 comprises an upper lead plate 31, a lower lead plate 32, a reflector lamp 33, a filter plate 34, a reflector plate 35, and a shell 36, in which the upper lead plate 31, the lower lead plate 32, the reflector lamp 33, the filter plate 34, and the reflector plate 35 are installed.

[0023] The uniformity of the irradiation dose is controlled by the filter plate 34 and the reflector plate 35. The filter plate 34 and the reflector plate 35 are made of the same material and have the same thickness, thereby ensuring that the dose uniformity of the X-rays within the irradiation range is consistent. Due to the invisibility of X-rays, the irradiation range of X-rays cannot be determined. By setting the reflector lamp 33 and the reflector plate 35, the irradiation line field of the X-rays is determined according to the light field reflected by the reflector plate 35.

[0024] The reflector plate 35 forms an acute angle with the horizontal plane.

[0025] The angle between the reflector plate 35 and the horizontal plane is 20°.

[0026] The filter plate 34 and the reflector plate 35 form an acute angle.

[0027] The angle between the filter plate 34 and the reflector plate 35 is 40°.

[0028] The housing 36 is fixed with an insert plate 37, which is matched with a slot in the shielding compartment 2. The beam limiter 3 is integrally mounted on the top of the shielding compartment 2, and is limited by the insert plates 37 on both sides to prevent it from falling off.

[0029] Two upper lead plates 31 and two lower lead plates 32 are installed in the shell 36 . A space for rays to pass through is provided between the two upper lead plates 31 , and a space for rays to pass through is provided between the two lower lead plates 32 .

[0030] The upper lead plate 31 is slidably connected to the X-axis straight rail in the shell 36, and the lower lead plate 32 is slidably connected to the Y-axis straight rail in the shell 36. The X-axis straight rail and the Y-axis straight rail are perpendicular to each other. The upper lead plate 31 is connected to the piston rod of the electric cylinder 1 4, and the lower lead plate 32 is connected to the piston rod of the electric cylinder 2 5.

[0031] The two electric cylinders 1 4 can drive the two upper lead plates 31 to open and close along the X-axis straight track, thereby controlling the distance between the two upper lead plates 31. The two electric cylinders 2 5 can drive the two lower lead plates 32 to open and close along the Y-axis straight track, thereby controlling the distance between the two lower lead plates 32. In this way, the radiation range of the rays can be adjusted.

Claims

1. An X-ray irradiator with a beam limiter, characterized in that: It comprises an X-ray source (1), a shielding chamber (2), and a beam limiter (3), wherein the beam limiter (3) is installed in the shielding chamber (2), and the X-ray source (1) is located above the shielding chamber (2).

2. The X-ray irradiator with a beam limiter according to claim 1, characterized in that: The beam limiter (3) comprises an upper lead plate (31), a lower lead plate (32), a reflector lamp (33), a filter plate (34), a reflector plate (35), and a housing (36); the upper lead plate (31), the lower lead plate (32), the reflector lamp (33), the filter plate (34), and the reflector plate (35) are installed in the housing (36).

3. The X-ray irradiator with a beam limiter according to claim 2, characterized in that: The reflector plate (35) forms an acute angle with the horizontal plane.

4. The X-ray irradiator with a beam limiter according to claim 3, characterized in that: The angle between the reflector plate (35) and the horizontal plane is 20°.

5. The X-ray irradiator with a beam limiter according to claim 2, characterized in that: An acute angle is formed between the filter plate (34) and the reflector plate (35).

6. The X-ray irradiator with a beam limiter according to claim 4, characterized in that: The angle between the filter plate (34) and the reflector plate (35) is 40°.

7. The X-ray irradiator with a beam limiter according to claim 2, characterized in that: An insert plate (37) is fixed on the housing (36), and the insert plate (37) matches with a slot in the shielding compartment (2).

8. The X-ray irradiator with a beam limiter according to claim 2, characterized in that: Two upper lead plates (31) and two lower lead plates (32) are installed in the housing (36); a spacing for rays to pass through is provided between the two upper lead plates (31); and a spacing for rays to pass through is provided between the two lower lead plates (32).

9. The X-ray irradiator with a beam limiter according to claim 2, characterized in that: The upper lead plate (31) is slidably connected to the X-axis straight rail in the housing (36), and the lower lead plate (32) is slidably connected to the Y-axis straight rail in the housing (36). The X-axis straight rail and the Y-axis straight rail are perpendicular to each other. The upper lead plate (31) is connected to the piston rod of the first electric cylinder (4), and the lower lead plate (32) is connected to the piston rod of the second electric cylinder (5).

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