Electron accelerator and target cooling device thereof

Abstract

The utility model discloses an electron accelerator and a target cooling device thereof, the target cooling device comprises a main body housing, a liquid inlet, a liquid outlet, a target material and a spacer, the middle part of the main body housing is provided with a mounting hole, the main body housing is internally provided with a liquid cooling cavity, and the liquid cooling cavity is provided with a liquid inlet and a liquid outlet. One end of the liquid cooling cavity is connected with the liquid inlet, and the other end of the liquid cooling cavity is connected with the liquid outlet; the target material and the spacer are both arranged in the mounting hole, the target material is arranged above the spacer, and the liquid cooling cavity comprises a gap between the target material and the spacer. The utility model provides the water-cooling heat dissipation mechanism of the target material, which improves the heat dissipation efficiency, timely and effectively takes away heat, reduces the temperature of the target material, ensures the efficiency and the quality of X-ray generation, enables equipment to operate more stably and safely, further integrates a tungsten target, a flange, a collimator and a heat dissipation structure on one device, can enable the structure of the equipment to be simplified, and reduces the production cost. The installation is convenient.

Description

Technical Field

[0001] The utility model relates to an electron accelerator and a target cooling device thereof. Background Art

[0002] A high-voltage accelerator is a device used to accelerate charged particles by using a high-voltage electric field. In a high-voltage accelerator, charged particles are accelerated to very high speeds in order to conduct particle physics research or to produce high-energy particle beams for other experiments. A high-voltage accelerator usually includes components such as an acceleration chamber, a magnetic field, and a control system, which can produce high-energy charged particle beams. Common high-voltage accelerators include electron accelerators, proton accelerators, etc.

[0003] Electron accelerators play an important role in modern physics research, helping scientists explore the basic structure and interactions of particles. By accelerating charged particles, scientists can conduct collision experiments under high energy conditions to study the behavior of particles under extreme conditions. These experiments help reveal the basic laws of nature and deepen human understanding of the universe.

[0004] In addition to scientific research, electron accelerators also play a role in medicine and industrial applications.

[0005] In the medical field, electron accelerators can be used in applications such as radiation therapy and medical imaging to help doctors diagnose diseases and treat patients.

[0006] In the industrial field, electron accelerators can be used in fields such as material modification, surface treatment, and beam etching to improve production efficiency and product quality.

[0007] Electron accelerators are powerful tools that provide scientists with ways to explore the microscopic world and improve the quality of life. As science and technology continue to develop, electron accelerators will continue to play an important role in various fields.

[0008] In an electron accelerator, an electron beam is accelerated and then hits a target to generate X-rays. Since the energy of the electron beam is extremely high, a large amount of heat will be generated after hitting the target. Traditional cooling methods are often inefficient and cannot effectively remove the heat in a timely manner, resulting in excessively high target temperatures, which affects the efficiency and quality of X-ray generation. Utility Model Content

[0009] The technical problem to be solved by the utility model is to overcome the defect in the prior art that the tungsten target of the electron accelerator has poor heat dissipation efficiency, which leads to excessively high temperature of the target material and affects the efficiency and quality of X-ray generation, and to provide an electron accelerator and a target cooling device thereof which can improve the working stability of the titanium metal film and the safety of the linear accelerator equipment.

[0010] The utility model solves the above technical problems through the following technical solutions:

[0011] A target cooling device for an electron accelerator, characterized in that the target cooling device comprises a main body shell, a liquid inlet, a liquid outlet, a target material and a spacer.

[0012] A mounting hole is provided in the middle of the main shell, a liquid cooling cavity is provided inside the main shell, one end of the liquid cooling cavity is connected to the liquid inlet and the other end is connected to the liquid outlet;

[0013] The target material and the isolation plate are both arranged in the mounting hole, the target material is arranged above the isolation plate, and the liquid cooling cavity includes a gap between the target material and the isolation plate.

[0014] Preferably, the liquid cooling cavity includes a first area, a second area and a third area, the first area is connected to the liquid outlet, the third area is connected to the liquid inlet, the second area includes the gap between the target material and the isolation plate, the height of the first area and the second area is greater than the height of the gap, the maximum width of the first area is smaller than the maximum width of the third area, and the diameter of the liquid inlet is smaller than the liquid outlet.

[0015] Preferably, a plurality of flange mounting through holes are provided on the outside of the mounting hole, and the flange mounting through holes include a first through hole and a second through hole. A plurality of mounting columns are provided in the liquid cooling cavity, the first through hole is provided in the mounting column, and the second through hole is provided on the area of ​​the main shell other than the liquid cooling cavity.

[0016] Preferably, the mounting column is fusiform in shape, the length direction of the fusiform matches the direction of water flow from the third area to the first area, the flange mounting through holes are evenly arranged around the mounting hole, and the upper and lower surfaces of the liquid cooling cavity are both curved surfaces.

[0017] Preferably, a plurality of main body mounting screw holes are provided on the outside of the mounting hole, and the main body mounting screw holes include a first screw hole and a second screw hole, the first screw hole is provided in the mounting column, and the second screw hole is provided on the area of ​​the main body shell other than the liquid cooling cavity.

[0018] Preferably, a liquid cooling water tank is provided above the liquid cooling cavity, the liquid cooling water tank is arranged around the mounting hole, a water tank cover is provided above the liquid cooling water tank, one end of the liquid cooling water tank is connected to the liquid inlet through the liquid cooling cavity and the other end is connected to the liquid outlet through the liquid cooling cavity.

[0019] Preferably, the main body shell includes an upper main body shell and a lower main body shell, an accelerating tube of an electron accelerator is provided above the upper main body shell, a collimator is provided below the lower main body shell, the target material is installed at the lower end of the mounting hole of the upper main body shell, and the isolation plate is installed at the upper end of the mounting hole of the lower main body shell.

[0020] Preferably, the target material is a tungsten target, the isolation plate is a titanium foil, and a clamping protrusion is provided on the edge of the isolation plate. The clamping protrusion is installed between the collimator and the lower shell of the main body.

[0021] Preferably, the liquid outlet is connected to the liquid inlet through a coolant tank, a cold water device and a high-pressure water pump.

[0022] The main body shell is made of tungsten, and the main body lower shell and the collimator are integrally formed; or,

[0023] The material of the main body upper shell is tungsten; or,

[0024] The material of the main body lower shell is tungsten, and the main body lower shell and the collimator are integrally formed.

[0025] The utility model also provides an electron accelerator, which is characterized in that the electron accelerator comprises the target cooling device as described above.

[0026] The utility model also provides an electron accelerator, which is characterized in that the waveguide isolation window includes the water cooling device for the beam extraction system as described above.

[0027] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0028] The positive and progressive effects of the utility model are:

[0029] The utility model provides a water-cooled heat dissipation mechanism for a target material, which improves the heat dissipation efficiency, timely and effectively takes away the heat, reduces the temperature of the target material, ensures the efficiency and quality of X-ray generation, and makes the operation of the equipment more stable and safer. Furthermore, the tungsten target, flange and heat dissipation structure are integrated into one device, which can make the structure of the equipment simple and convenient to install.

[0030] The specially designed cooling water channel achieves efficient cooling of the tungsten target, ensuring the stable generation of X-rays.

[0031] The closed-loop cooling system consisting of a high-pressure water pump and a compressor can quickly circulate cooling water and improve cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of the target cooling device of Example 1 of the utility model.

[0033] Figure 2 This is a schematic structural diagram of the target cooling device of Example 1 of the utility model.

[0034] Figure 3 This is a schematic structural diagram of the target cooling device of Example 1 of the utility model.

[0035] Figure 4 This is a schematic structural diagram of the target cooling device of Example 1 of the utility model.

[0036] Figure 5 This is a schematic diagram of the structure of the isolation sheet of Example 1 of the utility model.

[0037] Figure 6 This is a schematic diagram of the structure of the water cooling system of Example 1 of the utility model.

[0038] Figure 7 This is a schematic structural diagram of the target cooling device of Example 2 of the utility model. DETAILED DESCRIPTION

[0039] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0040] Example 1

[0041] In this embodiment, the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] See also Figures 1 to 6 , this embodiment provides an electron accelerator, wherein the linear accelerator includes a water cooling system and a target cooling device.

[0043] The target cooling device includes a main body shell 100 , a liquid inlet 101 , a liquid outlet 102 , a target material 103 and an isolation sheet 104 .

[0044] The main body shell in this embodiment is made of stainless steel. Preferably, the main body shell can also be made of tungsten material to have a higher shielding effect.

[0045] The target material 103 is a tungsten target. The high-energy electron beam bombards the tungsten target to generate X-rays and a large amount of waste heat.

[0046] The isolation plate 104 is a titanium window. The isolation plate can be a titanium foil or some non-metallic plate. Its function is to allow X-rays to pass through while isolating the water channel.

[0047] A mounting hole 105 is provided in the middle of the main shell, and a liquid cooling cavity 106 is provided inside the main shell. One end of the liquid cooling cavity 106 is connected to the liquid inlet 101 and the other end is connected to the liquid outlet 102 .

[0048] The target material and the isolation plate are both arranged in the mounting hole, the target material is arranged above the isolation plate, and the liquid cooling cavity includes a gap 107 between the target material and the isolation plate.

[0049] The liquid cooling chamber 106 includes a first area 1061 , a second area 1062 , and a third area 1063 .

[0050] The first region is connected to the liquid outlet, the third region is connected to the liquid inlet, and the second region includes a gap between the target material and the isolation sheet.

[0051] The heights of the first region and the second region are greater than the height of the gap, and the maximum width of the first region is less than the maximum width of the third region.

[0052] The third area enters the high-pressure water flow, and the water flow in the third area converges in the second area, so that the water flow flows through the surface of the tungsten target at a high speed in a sheet shape, quickly taking away the heat.

[0053] A plurality of flange mounting through holes are provided on the outer side of the mounting hole 105 .

[0054] The flange mounting through hole includes a first through hole 1051 and a second through hole 1052 .

[0055] A plurality of mounting posts 108 are disposed in the liquid cooling cavity 106 .

[0056] The first through hole 1051 is disposed in the mounting column, and the second through hole 1052 is disposed on an area of ​​the main housing except for the liquid cooling cavity.

[0057] The installation column in the water inlet area has the following functions:

[0058] Disperse the incoming high-pressure water flow so that it flows over the surface of the tungsten target at high speed in a sheet shape.

[0059] Reserve the mounting screw holes that need to be evenly distributed symmetrically.

[0060] The liquid cooling chamber is formed with multiple flow channels by the mounting columns, covering the circular tungsten target area, and is designed to maximize the area while avoiding the mounting holes.

[0061] The mounting column 108 is in the shape of a shuttle, the length direction of which matches the water flow direction 109 from the third area to the first area, the flange mounting through holes are evenly arranged around the mounting hole, and the upper and lower surfaces of the liquid cooling cavity are both curved surfaces.

[0062] A liquid cooling water tank 110 is disposed above the liquid cooling cavity.

[0063] The liquid cooling water tank is arranged around the mounting hole.

[0064] A water tank cover 111 is provided above the liquid cooling water tank.

[0065] One end of the liquid cooling water tank is connected to the liquid inlet through the liquid cooling cavity and the other end is connected to the liquid outlet through the liquid cooling cavity. A connecting hole 112 is provided between the liquid cooling water tank and the liquid cooling cavity.

[0066] The diameter of the liquid inlet is smaller than that of the liquid outlet.

[0067] The main body shell includes a main body upper shell and a main body lower shell.

[0068] An accelerating tube of an electron accelerator is arranged above the upper shell of the main body.

[0069] A collimator 113 is disposed below the lower shell of the main body.

[0070] The target material is installed at the lower end of the installation hole of the main body upper shell.

[0071] The isolation sheet is installed at the upper end of the installation hole of the lower shell of the main body.

[0072] A plurality of main body mounting screw holes for mounting the main body upper shell and the main body lower shell are arranged on the outer side of the mounting hole.

[0073] The main body mounting screw hole includes a first screw hole and a second screw hole.

[0074] The first screw hole is disposed in the mounting post.

[0075] The second screw hole is arranged on an area of ​​the main shell except the liquid cooling cavity.

[0076] Specifically, the target material is a tungsten target, the isolation plate 104 is a titanium foil, and a clamping protrusion is provided on the edge of the isolation plate. The clamping protrusion is installed between the collimator 113 and the lower shell of the main body.

[0077] The water cooling system includes a coolant tank 114, a cold water device 115 and a high-pressure water pump 116, and the liquid outlet 102 is connected to the liquid inlet 101 through the coolant tank, the cold water device (which may be an evaporator) and the high-pressure water pump.

[0078] The main body shell is made of stainless steel, and the collimator is made of tungsten.

[0079] This embodiment provides a water-cooled heat dissipation mechanism for the target material, which improves the heat dissipation efficiency, removes heat in a timely and effective manner, reduces the temperature of the target material, ensures the efficiency and quality of X-ray generation, and makes the equipment run more stably and safely. Furthermore, the tungsten target, flange and heat dissipation structure are integrated into one device, which can streamline the structure of the equipment and facilitate installation.

[0080] The specially designed cooling water channel achieves efficient cooling of the tungsten target, ensuring the stable generation of X-rays.

[0081] The closed-loop cooling system consisting of a high-pressure water pump and a compressor can quickly circulate cooling water and improve cooling efficiency.

[0082] Example 2

[0083] See also Figure 7 This embodiment is basically the same as Embodiment 1, except that:

[0084] In this embodiment, the material of the main body shell is tungsten, and an integrally formed collimator 202 is provided below the main body lower shell 201 , that is, the main body lower shell 201 and the collimator 202 are integrally formed.

[0085] Other implementations may also be that the material of the main body upper shell is tungsten, the main body lower shell is stainless steel, and the material of the collimator is tungsten; or, the material of the main body lower shell is tungsten, the main body lower shell and the collimator are integrally formed, and the main body upper shell is stainless steel.

[0086] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A target cooling device for an electron accelerator, characterized in that: The target cooling device comprises a main body shell, a liquid inlet, a liquid outlet, a target material and a spacer. A mounting hole is provided in the middle of the main shell, a liquid cooling cavity is provided inside the main shell, one end of the liquid cooling cavity is connected to the liquid inlet and the other end is connected to the liquid outlet; The target material and the isolation plate are both arranged in the mounting hole, the target material is arranged above the isolation plate, and the liquid cooling cavity includes a gap between the target material and the isolation plate.

2. The target cooling device for an electron accelerator according to claim 1, characterized in that: The main body shell includes an upper main body shell and a lower main body shell. An accelerating tube of an electron accelerator is arranged above the upper main body shell, and a collimator is arranged below the lower main body shell. The target material is installed at the lower end of the mounting hole of the upper main body shell, and the isolation plate is installed at the upper end of the mounting hole of the lower main body shell.

3. The target cooling device for an electron accelerator according to claim 2, characterized in that: The main body shell is made of tungsten, and the main body lower shell and the collimator are integrally formed; or, The material of the main body upper shell is tungsten; or, The material of the main body lower shell is tungsten, and the main body lower shell and the collimator are integrally formed.

4. The target cooling device for an electron accelerator according to claim 2, characterized in that: The target material is a tungsten target, the isolation sheet is a titanium foil, a clamping protrusion is provided on the edge of the isolation sheet, and the clamping protrusion is installed between the collimator and the lower shell of the main body.

5. The target cooling device for an electron accelerator according to claim 1, characterized in that: The liquid cooling cavity includes a first area, a second area and a third area, the first area is connected to the liquid outlet, the third area is connected to the liquid inlet, the second area includes the gap between the target material and the isolation plate, the height of the first area and the second area is greater than the height of the gap, the maximum width of the first area is smaller than the maximum width of the third area, and the diameter of the liquid inlet is smaller than the liquid outlet.

6. The target cooling device for an electron accelerator according to claim 5, characterized in that: A plurality of flange mounting through holes are provided on the outside of the mounting hole, and the flange mounting through holes include a first through hole and a second through hole. A plurality of mounting columns are provided in the liquid cooling cavity, the first through hole is provided in the mounting column, and the second through hole is provided in an area of ​​the main shell other than the liquid cooling cavity.

7. The target cooling device for an electron accelerator according to claim 6, characterized in that: The mounting column is in the shape of a shuttle, the length direction of the shuttle matches the direction of water flow from the third area to the first area, the flange mounting through holes are evenly arranged around the mounting hole, and the upper surface and the lower surface of the liquid cooling cavity are both curved surfaces.

8. The target cooling device for an electron accelerator according to claim 6, characterized in that: A plurality of main body mounting screw holes are arranged on the outside of the mounting hole, and the main body mounting screw holes include a first screw hole and a second screw hole, the first screw hole is arranged in the mounting column, and the second screw hole is arranged on the area of ​​the main body shell except the liquid cooling cavity.

9. The target cooling device for an electron accelerator according to claim 1, characterized in that: A liquid cooling water tank is provided above the liquid cooling cavity, and the liquid cooling water tank is arranged around the mounting hole. A water tank cover is provided above the liquid cooling water tank. One end of the liquid cooling water tank is connected to the liquid inlet through the liquid cooling cavity, and the other end is connected to the liquid outlet through the liquid cooling cavity. The liquid outlet is connected to the liquid inlet through a coolant tank, a cold water device and a high-pressure water pump.

10. An electron accelerator, characterized in that: The electron accelerator comprises the target cooling device according to any one of claims 1 to 9.

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