Accelerating tube of electron accelerator

Abstract

The utility model relates to an accelerating tube of an electron accelerator, which comprises a plurality of electrode plates and a plurality of insulating rings which are laminated, each electrode plate comprises an edge part, and the edge part of each electrode plate is connected with a first insulating ring through a first glue layer and is connected with a second insulating ring through a second glue layer. The edge part is provided with a plurality of through holes which are spaced from one another, and the first glue layer and the second glue layer are communicated through the edge part and the through holes, so that the first insulating ring and the second insulating ring are directly bonded. According to the accelerating tube of the electron accelerator, the internal stress of the electrode plates is eliminated through the through holes in the edge parts of the electrode plates, and the adjacent insulating rings are directly bonded through the through holes, so that the connecting strength of the electrode plates and the insulating rings is improved, the insulating rings are not easy to damage, and the service life of the accelerating tube is prolonged. And it is ensured that the accelerating tube can operate safely and reliably under the ultrahigh vacuum condition.

Description

Technical Field

[0001] The utility model relates to an electron accelerator, and more specifically to an accelerating tube of the electron accelerator. Background Art

[0002] In an electron accelerator, the transmitted electrons are accelerated inside the accelerating tube. The accelerating tube includes multiple electrode sheets and insulating rings, and the interior is a high vacuum environment. A voltage divider resistor is connected between each electrode sheet to accelerate the electrons in the accelerating tube. Until now, when the electrode sheets and the insulating rings are bonded with glue, the metal electrode sheets will generate stress during the manufacturing process, which will not only destroy the bonding strength of the glue, but also cause the insulating ring to burst and be damaged, thereby destroying the vacuum and making the accelerating tube unable to work normally. In addition, the entire circular plane of the electrode sheet and the insulating ring is bonded, and the density is poor, which will cause leakage and destroy the vacuum inside the accelerator. Utility Model Content

[0003] In order to solve the problems caused by the glue bonding of electrode sheets in the prior art, the utility model provides an accelerating tube of an electron accelerator.

[0004] According to the accelerating tube of the electron accelerator of the utility model, it includes a plurality of electrode sheets and a plurality of insulating rings arranged in a stacked manner, each electrode sheet includes an edge portion, the edge portion of each electrode sheet is connected to a first insulating ring through a first glue layer and to a second insulating ring through a second glue layer, the edge portion is provided with a plurality of through holes spaced apart from each other, the first glue layer and the second glue layer are connected through the edge portion and the through holes so that the first insulating ring and the second insulating ring are directly bonded.

[0005] In a preferred embodiment, the edge portion extends on a plane to form a platform, and the through hole is arranged on the platform.

[0006] In a preferred embodiment, the insulating ring has relative top and bottom surfaces, the first insulating ring is connected to the top surface of the platform of the electrode sheet through its bottom surface through a first glue layer, and the second insulating ring is connected to the bottom surface of the platform of the electrode sheet through its top surface through a second glue layer.

[0007] In a preferred embodiment, the top surface of the platform is a roughened upper surface, and the bottom surface of the platform is a roughened lower surface.

[0008] In a preferred embodiment, the electrode sheet is a stainless steel electrode sheet.

[0009] In a preferred embodiment, the insulating ring is a glass ring.

[0010] In a preferred embodiment, each electrode sheet further includes an annular groove portion, the annular groove portion is located radially inward, and the edge portion extends radially outward from a circumferential edge of the annular groove portion.

[0011] In a preferred embodiment, the annular groove portion is axially recessed to form a V-shaped groove open upward.

[0012] According to the accelerating tube of the electron accelerator of the utility model, the internal stress of the electrode sheet is eliminated through the through hole at the edge of the electrode sheet, and the adjacent insulating rings are directly bonded via the through hole, thereby improving the connection strength between the electrode sheet and the insulating ring, and making the insulating ring less prone to damage, thereby ensuring that the accelerating tube can operate safely and reliably under ultra-high vacuum conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of an accelerating tube of an electron accelerator according to a preferred embodiment of the utility model.

[0014] Figure 2 yes Figure 1 Schematic diagram of the structure of the electrode sheet.

[0015] Figure 3 yes Figure 1 Schematic diagram of the structure of the insulating ring. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present utility model are given below in conjunction with the accompanying drawings and described in detail.

[0017] like Figure 1 As shown, according to a preferred embodiment of the present utility model, an accelerating tube of an electron accelerator comprises a plurality of electrode sheets 1 and a plurality of insulating rings 2, wherein the plurality of electrode sheets 1 are stacked up and down with spacing from each other, the insulating rings 2 are arranged between adjacent electrode sheets 1, and each electrode sheet 1 is connected to the insulating ring 2 above through a first glue layer 3 and to the insulating ring 2 below through a second glue layer 4. In this embodiment, the electrode sheet 1 is a stainless steel electrode sheet, and the insulating ring 2 is a glass ring. In addition, according to this embodiment, the accelerating tube of the electron accelerator further comprises a first mounting flange 5 and a second mounting flange 6, wherein the first mounting flange 5 is fixedly mounted above the plurality of electrode sheets 1 stacked, and the second mounting flange 6 is fixedly mounted below the plurality of electrode sheets 1 stacked, so that the accelerating tube of this embodiment can be installed as required.

[0018] like Figure 2 As shown, the electrode sheet 1 includes an annular groove portion 11 and an edge portion 12, wherein the groove portion 11 is located radially inward, and the edge portion 12 extends radially outward from the circumferential edge 112 of the groove portion 11, see Figure 1 The insulating ring 2 is disposed between the edge portions 12 of the upper and lower adjacent electrode sheets 1 .

[0019] like Figure 2 As shown, the groove portion 11 is axially recessed to form an upwardly open V-shaped groove 111, see Figure 1 The annular groove portion 11 of the upper electrode sheet 1 is arranged in the V-shaped groove 111 of the annular groove portion 11 of the lower electrode sheet 1 .

[0020] like Figure 2 As shown, the edge portion 12 extends roughly on a plane to form a platform 121, and a plurality of through holes 122 are provided on the platform 121. In this embodiment, the through holes 122 on the platform 121 are distributed in three circles, and the through holes 122 are evenly spaced from each other. It should be understood that the specific distribution of the through holes 122 can be adjusted as needed.

[0021] like Figure 3 As shown, the cross section of the insulating ring 2 is generally rectangular, with a relatively flat top surface 21 and a bottom surface 22, combined with Figure 1 The insulating ring 2 located above the electrode sheet 1 is bonded to the top surface of the platform 121 of the electrode sheet 1 through the flat bottom surface 22 through the first glue layer 3, and the insulating ring 2 located below the electrode sheet 1 is bonded to the bottom surface of the platform 121 of the electrode sheet 1 through the flat top surface 21 through the second glue layer 4. The two glue layers 3 and 4 are connected through the through hole 122 on the platform 121, so that the upper and lower adjacent insulating rings 2 are directly bonded, making the bonding more firm. In this embodiment, the top surface of the platform 121 is a roughened upper surface, and the bottom surface of the platform 121 is a roughened lower surface.

[0022] The edge portion 12 of the electrode sheet 1 of the utility model is provided with a plurality of through holes 122 arranged at intervals along the circumferential direction, which greatly eliminates the internal stress of the electrode sheet 1 and improves the connection strength between the electrode sheet 1 and the insulating ring 2. The electrode sheet 1 and the insulating ring 2 are not easily separated, and the insulating ring 2 is not easily damaged, thereby ensuring that the accelerating tube can operate safely and reliably under ultra-high vacuum conditions.

[0023] The above is only a preferred embodiment of the utility model, and is not intended to limit the scope of the utility model. The above embodiments of the utility model can also be modified in various ways. That is, all simple, equivalent changes and modifications made according to the claims and the contents of the specification of the utility model application fall within the scope of protection of the claims of the utility model patent. The conventional technical contents are not described in detail in the utility model.

Claims

1. An accelerating tube of an electron accelerator, characterized in that: The accelerating tube comprises a plurality of electrode sheets and a plurality of insulating rings which are stacked, each electrode sheet comprises an edge portion, the edge portion of each electrode sheet is connected to a first insulating ring via a first glue layer and to a second insulating ring via a second glue layer, the edge portion is provided with a plurality of through holes which are spaced apart from each other, the first glue layer and the second glue layer are connected via the edge portion and the through holes so that the first insulating ring and the second insulating ring are directly bonded.

2. The accelerating tube according to claim 1, characterized in that: The edge portion extends on a plane to form a platform, and the through hole is disposed on the platform.

3. The accelerating tube according to claim 2, characterized in that: The insulating ring has opposite top and bottom surfaces, the first insulating ring is connected to the top surface of the platform of the electrode sheet through its bottom surface through a first glue layer, and the second insulating ring is connected to the bottom surface of the platform of the electrode sheet through its top surface through a second glue layer.

4. The accelerating tube according to claim 3, characterized in that: The top surface of the platform is a roughened upper surface, and the bottom surface of the platform is a roughened lower surface.

5. The accelerating tube according to claim 1, characterized in that: The electrode sheet is a stainless steel electrode sheet.

6. The accelerating tube according to claim 1, characterized in that: The insulating ring is a glass ring.

7. The accelerating tube according to claim 1, characterized in that: Each electrode sheet further includes an annular groove portion, the annular groove portion is located radially inward, and the edge portion extends radially outward from a circumferential edge of the annular groove portion.

8. The accelerating tube according to claim 7, characterized in that: The annular groove portion is axially recessed to form an upwardly open V-shaped groove.

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