Accelerator tube arrangement and electron accelerator

Abstract

This utility model discloses an accelerating tube device and an electron accelerator. The electron accelerator includes a cathode flange, and the accelerating tube device includes an insulating tube, several electrode plates, an upper accelerating tube flange, and a lower accelerating tube flange. The upper accelerating tube flange is located below the cathode flange. The top of the insulating tube is sealed to the upper accelerating tube flange, and the bottom is sealed to the lower accelerating tube flange. The insulating tube, the upper accelerating tube flange, and the lower accelerating tube flange form a vacuum cavity. The electrode plates are stacked inside the insulating tube, and insulating supports are provided between adjacent electrode plates. This utility model provides a novel accelerating tube structure with good sealing performance, extending the service life of the equipment. Furthermore, the accelerating tube structure is stable, and the insulating supports not only support the electrode plates but also provide protection, further improving the sealing effect.

Description

Technical Field

[0001] This utility model relates to an accelerator tube device and an electron accelerator. Background Technology

[0002] An electron accelerator is a device used to accelerate charged particles. High-frequency, high-voltage accelerators use a combination of high-frequency and high-voltage electric fields to accelerate charged particles to high energies. They are widely used in research fields including particle physics, nuclear physics, and materials science. Electron accelerators can operate in different ways, including linear accelerators and circular accelerators. By continuously accelerating particles, electron accelerators can generate high-energy particle beams for studying high-energy physics phenomena or for medical radiation therapy.

[0003] Accelerator tubes are the core components of particle accelerators, responsible for accelerating electrons in a vacuum environment using electromagnetic fields. Their design directly affects the accelerator's energy, efficiency, and particle beam quality. Existing accelerator tube devices suffer from poor sealing performance, high production and maintenance costs, and insufficient structural robustness. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of existing accelerator tube devices, such as poor sealing performance, high production and maintenance costs, and insufficient structural robustness. It provides a new type of accelerator tube structure with good sealing effect, which makes the equipment have a longer service life, and the accelerator tube structure is stable and has a sealing structure protection function as an accelerator tube device and electron accelerator.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] An accelerating tube assembly for an electron accelerator, the electron accelerator including a cathode flange, characterized in that the accelerating tube assembly includes an insulating tube, a plurality of insulating supports, a plurality of electrode plates, an upper accelerating tube flange, and a lower accelerating tube flange.

[0007] The flange on the accelerating tube is located below the cathode flange;

[0008] The top of the insulating tube is sealed to the upper flange of the accelerating tube and the bottom is sealed to the lower flange of the accelerating tube. The insulating tube, the upper flange of the accelerating tube, and the lower flange of the accelerating tube are all vacuum chambers.

[0009] The insulating tube has stacked electrode plates inside, and an insulating support is provided between adjacent electrode plates;

[0010] The insulating support is a circular cylinder, the axis of which coincides with the axis of the electrode sheet, and the insulating support is stacked inside the insulating tube.

[0011] Preferably, the insulating tube is provided with mounting holes, and the accelerating tube device further includes several fixing rods, which pass through the mounting holes and are fixed to the electrode plates between the two insulating supports.

[0012] Preferably, the upper and lower end faces of the insulating support are provided with semi-circular mounting grooves, and the semi-circular mounting groove on the lower end face of the insulating support corresponds to the position of the semi-circular mounting groove on the upper end face.

[0013] Each mounting hole is matched with the position of the two semi-circular mounting slots, and the fixing rod passes through the mounting hole and the two semi-circular mounting slots and is connected to the electrode plate.

[0014] A seal is provided on the outside of the mounting hole.

[0015] Preferably, the outer diameter of the insulating support is the same as the outer diameter of the electrode sheet, the side of the electrode sheet is provided with a screw hole, two spliced ​​semi-circular mounting grooves accommodate the screw hole, and the fixing rod is a bolt that matches the screw hole.

[0016] Preferably, the electrode sheet has a beam channel at its center, and the axis of the electrode sheet coincides with the axis of the insulating tube.

[0017] Preferably, the cathode flange is provided with a plurality of countersunk holes, and the upper flange of the accelerator tube is provided with screw holes corresponding to the positions of the countersunk holes. The upper flange of the accelerator tube is fixed to the lower part of the cathode flange by bolts installed in the countersunk holes.

[0018] Preferably, the lower surface of the flange on the accelerator tube is provided with an annular groove that matches the size of the insulating tube, and the insulating tube is disposed in the annular groove.

[0019] Preferably, the electron accelerator further includes an electron gun connected to the bottom of the cathode flange, and an electron gun mounting hole is provided at the center of the flange on the accelerator tube, through which the electron gun is aligned with the beam channel.

[0020] Preferably, the electron accelerator further includes a high-voltage support and a high-voltage cap device. The high-voltage support is located outside the insulating tube, and an upper positioning ring is provided on the top of the high-voltage support. The inner surface of the upper positioning ring is radially positioned with the outer surface of the cathode flange.

[0021] The high-voltage cap device is located above the upper positioning ring, and the high-voltage cap device is electrically connected to the cathode flange;

[0022] The high-pressure cap device includes a high-pressure cap and a high-pressure cap mounting ring. The high-pressure cap mounting ring includes a mounting ring body and a raised ring. The cross-sectional area of ​​the mounting ring body through the axis is two rectangles. The inner surface of the mounting ring body is radially positioned with respect to the outer surface of the cathode flange. The raised ring is located on the lower surface of the mounting ring body. The cross-sectional area of ​​the raised ring through the axis is two semicircles.

[0023] This utility model also provides an electron accelerator, characterized in that the electron accelerator includes the acceleration tube device as described above.

[0024] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0025] The positive and progressive effects of this utility model are as follows:

[0026] This invention provides a novel accelerator tube structure with good sealing effect, which extends the service life of the equipment. Moreover, the accelerator tube structure is stable, and the insulating support can also play a protective role while supporting the electrode sheet, further improving the sealing effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the accelerator tube device according to Embodiment 1 of this utility model.

[0028] Figure 2 This is a schematic diagram of the electron accelerator according to Embodiment 1 of this utility model.

[0029] Figure 3 This is a schematic diagram of the accelerator tube device according to Embodiment 1 of this utility model.

[0030] Figure 4 This is another structural schematic diagram of the acceleration tube device of Embodiment 1 of this utility model.

[0031] Figure 5 This is a schematic diagram of the electron accelerator according to Embodiment 1 of this utility model.

[0032] Figure 6 This is a schematic diagram of the accelerator tube device according to Embodiment 1 of this utility model.

[0033] Figure 7 This is a schematic diagram of the electron accelerator according to Embodiment 1 of this utility model. Detailed Implementation

[0034] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments described herein.

[0035] Example 1

[0036] In this embodiment, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] See Figures 1 to 7 This embodiment provides an electron accelerator, which includes an acceleration tube device 11, a cathode flange 21, a high-voltage support 31, and a high-voltage cap device 41.

[0038] The accelerator tube device 11 includes an insulating tube 111, several insulating support members 114, several electrode plates 112, an upper flange 113 of the accelerator tube, and a lower flange 115 of the accelerator tube.

[0039] The accelerator tube flange 113 is located below the cathode flange 21;

[0040] The top of the insulating tube 111 is sealed to the upper flange 113 of the accelerating tube and the bottom is sealed to the lower flange 115 of the accelerating tube. The insulating tube, the upper flange of the accelerating tube and the lower flange of the accelerating tube are vacuum chambers.

[0041] The insulating tube is provided with stacked electrode sheets 112 inside, and an insulating support 114 is provided between adjacent electrode sheets;

[0042] The insulating support is a circular cylinder, the axis of which coincides with the axis of the electrode sheet, and the insulating support is stacked inside the insulating tube.

[0043] The insulating support not only supports the electrode plates but also protects the insulating tube.

[0044] The insulating tube 111 is provided with mounting holes 1111, and the accelerating tube device also includes several fixing rods 116, which pass through the mounting holes and are fixed to the electrode plates between the two insulating supports 114.

[0045] In this embodiment, each electrode sheet is connected and fixed to at least one fixing rod. The mounting holes on the insulating tube can be located in a straight line or evenly distributed on the insulating tube, such as evenly distributed on a spiraling curve.

[0046] The upper and lower ends of the insulating support 114 are provided with semi-circular mounting grooves 1141. In this embodiment, the semi-circular mounting groove on the lower end of the insulating support corresponds to the position of the semi-circular mounting groove on the upper end.

[0047] Each mounting hole 1111 is matched with the position of the two spliced ​​semicircular mounting slots, and the fixing rod 116 passes through the mounting hole 111 and the two spliced ​​semicircular mounting slots and is connected to the electrode sheet.

[0048] A seal 1112 is provided on the outside of the mounting hole.

[0049] The outer diameter of the insulating support is the same as the outer diameter of the electrode sheet. The side of the electrode sheet is provided with a screw hole 1121. Two semi-circular mounting grooves are spliced ​​together to accommodate the screw hole 1121. The fixing rod is a bolt that matches the screw hole.

[0050] The screw holes are located within the two semi-circular mounting slots at the joint. The screw holes are located at the edge of the electrode sheet, either above or below the electrode sheet, or... Figure 3 The axis of the screw hole shown is located on the plane where the electrode plate is located.

[0051] The electrode sheet 112 has a beam channel at its center, and the axis of the electrode sheet coincides with the axis of the insulating tube.

[0052] The cathode flange 21 is provided with several countersunk holes, and the upper flange 113 of the accelerator tube is provided with screw holes corresponding to the positions of the countersunk holes. The upper flange of the accelerator tube is fixed to the lower part of the cathode flange by bolts installed in the countersunk holes.

[0053] The lower surface of the flange on the accelerator tube is provided with an annular groove that matches the size of the insulating tube, and the insulating tube is disposed in the annular groove.

[0054] The electron accelerator also includes an electron gun 51, which is connected to the bottom of the cathode flange.

[0055] An electron gun mounting hole is provided at the center of the flange on the accelerator tube, and the electron gun passes through the electron gun mounting hole and is aligned with the beam channel.

[0056] The high-voltage bracket 31 is located on the outside of the insulating tube 111, and the top of the high-voltage bracket 31 is provided with an upper positioning ring 311.

[0057] The inner surface of the upper positioning ring 311 is radially positioned relative to the outer surface of the cathode flange 21.

[0058] The high-pressure cap device is located above the upper positioning ring, and the high-pressure cap device is electrically connected to the cathode flange.

[0059] The high-pressure cap device 41 includes a high-pressure cap and a high-pressure cap mounting ring. The high-pressure cap mounting ring includes a mounting ring body 411 and a protruding ring 412.

[0060] The mounting ring body has two rectangular cross-sections along its axis, and the inner surface of the mounting ring body is radially positioned relative to the outer surface of the cathode flange.

[0061] The raised ring is located on the lower surface of the mounting ring body, and the cross-section of the raised ring through the axis is two semicircles.

[0062] This embodiment provides a novel accelerator tube structure with good sealing effect, which extends the service life of the equipment. Moreover, the accelerator tube structure is stable, and the insulating support can not only support the electrode sheet but also provide protection, further improving the sealing effect.

[0063] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. An accelerating tube device for an electron accelerator, the electron accelerator comprising a cathode flange, characterized in that, The accelerator tube device includes an insulating tube, several insulating support components, several electrode plates, an upper flange of the accelerator tube, and a lower flange of the accelerator tube. The flange on the accelerating tube is located below the cathode flange; The top of the insulating tube is sealed to the upper flange of the accelerating tube and the bottom is sealed to the lower flange of the accelerating tube. The insulating tube, the upper flange of the accelerating tube, and the lower flange of the accelerating tube are all vacuum chambers. The insulating tube has stacked electrode plates inside, and an insulating support is provided between adjacent electrode plates; The insulating support is a circular cylinder, the axis of which coincides with the axis of the electrode sheet, and the insulating support is stacked inside the insulating tube.

2. The accelerator tube device as described in claim 1, characterized in that, The insulating tube is provided with mounting holes, and the accelerating tube device also includes several fixing rods, which pass through the mounting holes and are fixed to the electrode plates between the two insulating supports.

3. The accelerator tube device as described in claim 2, characterized in that, The upper and lower ends of the insulating support are both provided with semi-circular mounting grooves; Each mounting hole is matched with the position of the two semi-circular mounting slots, and the fixing rod passes through the mounting hole and the two semi-circular mounting slots and is connected to the electrode plate. A seal is provided on the outside of the mounting hole.

4. The accelerator tube device as described in claim 3, characterized in that, The outer diameter of the insulating support is the same as the outer diameter of the electrode sheet. The side of the electrode sheet is provided with a screw hole. Two semi-circular mounting grooves are spliced ​​together to accommodate the screw hole. The fixing rod is a bolt that matches the screw hole.

5. The accelerator tube device as described in claim 1, characterized in that, The electrode sheet has a beam channel at its center, and the axis of the electrode sheet coincides with the axis of the insulating tube.

6. The accelerator tube device as described in claim 5, characterized in that, The cathode flange is provided with several countersunk holes, and the upper flange of the accelerator tube is provided with screw holes corresponding to the positions of the countersunk holes. The upper flange of the accelerator tube is fixed to the lower part of the cathode flange by bolts installed in the countersunk holes.

7. The accelerator tube device as described in claim 6, characterized in that, The lower surface of the flange on the accelerator tube is provided with an annular groove that matches the size of the insulating tube, and the insulating tube is disposed in the annular groove.

8. The accelerator tube device as described in claim 6, characterized in that, The electron accelerator also includes an electron gun, which is connected to the bottom of the cathode flange. An electron gun mounting hole is provided at the center of the flange on the accelerator tube, and the electron gun passes through the electron gun mounting hole and is aligned with the beam channel.

9. The accelerating tube device as claimed in claim 1, characterized in that, The electron accelerator also includes a high-voltage support and a high-voltage cap device. The high-voltage support is located on the outside of the insulating tube, and an upper positioning ring is provided on the top of the high-voltage support. The inner surface of the upper positioning ring is radially positioned with the outer surface of the cathode flange. The high-voltage cap device is located above the upper positioning ring, and the high-voltage cap device is electrically connected to the cathode flange; The high-pressure cap device includes a high-pressure cap and a high-pressure cap mounting ring. The high-pressure cap mounting ring includes a mounting ring body and a raised ring. The cross-sectional area of ​​the mounting ring body through the axis is two rectangles. The inner surface of the mounting ring body is radially positioned with respect to the outer surface of the cathode flange. The raised ring is located on the lower surface of the mounting ring body. The cross-sectional area of ​​the raised ring through the axis is two semicircles.

10. An electron accelerator, characterized in that, The electron accelerator includes an accelerator tube device as described in any one of claims 1 to 9.

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