CN117641694A - Beam window structure and accelerator - Google Patents

Abstract

The application discloses a beam window structure and accelerator relates to accelerator technical field. The beam window structure is configured with a beam direction and comprises a first flange, a beam window and a second flange which are sequentially arranged along the beam direction; the beam window is hermetically arranged between the first flange and the second flange, a first liquid cooling channel is arranged on the first flange, and a second liquid cooling channel is arranged on the second flange. The utility model provides a restraint window structure can promote the cooling efficiency of restraint window, reduces the heat and piles up.

Description

Beam window structure and accelerator

Technical Field

The application relates to the technical field of accelerators, in particular to a beam window structure and an accelerator.

Background

The beam window is a key component in the accelerator, and is mainly used for protecting the ultra-high vacuum environment in the beam channel and keeping the beam channel clean, and is generally arranged between the beam channel of the accelerator and the waste beam barrel. During operation of the accelerator, the electron beam first impinges on the beam window and passes through, and then enters the shield of the waste beam barrel. At this time, part of the electron beam energy is deposited on the beam window, causing the beam window to rise in temperature, and simultaneously causing the structural strength of the beam window to change.

With the continuous development of accelerator technology, the repetition frequency, power and current intensity level of the beam are continuously increased, and the deposition power of the beam window is correspondingly increased, so that the beam window has great challenges in heat transfer and the like.

However, the beam window of the existing accelerator has the problem of slower heat dissipation during use.

Disclosure of Invention

The application provides a beam window structure and an accelerator for improving the heat dissipation efficiency of a beam window.

The application provides a beam window structure, which is configured with a beam direction and comprises a first flange, a beam window and a second flange which are sequentially arranged along the beam direction;

the beam window is hermetically arranged between the first flange and the second flange, a first liquid cooling channel is arranged on the first flange, and a second liquid cooling channel is arranged on the second flange.

Based on the technical scheme, heat generated by the beam window can be transferred to the liquid cooling working medium through the first flange and the second flange respectively, forced convection cooling of the beam window can be realized, the liquid cooling working medium takes away heat on the beam window in real time, heat accumulation on the beam window is reduced, and normal use of the beam window structure is ensured.

In some possible embodiments, the first flange is further configured with a first flange aperture;

the first liquid cooling channel is arranged on the periphery of the first flange hole in a surrounding mode and is of a non-closed annular structure.

In some possible embodiments, the second flange is further configured with a second flange aperture;

the second liquid cooling channel is arranged on the periphery of the second flange hole in a surrounding mode and is not of a closed annular structure, and the second liquid cooling channel and the first liquid cooling channel are in central symmetry relative to a central axis L of the beam window structure.

In some possible embodiments, the second liquid cooling channel is located on a side of the first liquid cooling channel near the central axis L of the beam window structure.

In some possible embodiments, a first assembly groove is formed in one side, close to the beam window, of the first flange, and a first sealing ring is embedded in the first assembly groove and is abutted between the first flange and the beam window;

the second flange is close to one side of the beam window and is provided with a second assembly groove, a second sealing ring is embedded in the second assembly groove, and the second sealing ring is abutted between the second flange and the beam window.

In some possible embodiments, the inner diameter of the first fitting groove is larger than the outer diameter of the second fitting groove, and a difference between the inner diameter of the first fitting groove and the outer diameter of the second fitting groove is set to 4mm to 5mm.

In some possible embodiments, a boss is convexly arranged on one side of the first flange, which is close to the beam window, and the first assembly groove is formed in the boss;

the diameter of the beam window is smaller than or equal to the outer diameter of the boss.

In some possible embodiments, a sinking groove is formed on one side, close to the beam window, of the second flange, and the second assembly groove is formed at the bottom of the sinking groove;

the outer diameter of the sinking groove is larger than that of the boss, and the difference between the outer diameter of the sinking groove and that of the boss is 1-2 mm.

In some possible embodiments, the thickness of the beam window is 0.5mm to 2mm, and the roughness of the two side surfaces of the beam window is 0.8 μm to 1.6 μm.

In addition, the application also provides an accelerator comprising the beam window structure provided in the above embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 illustrates a schematic cross-sectional structure of a beam window structure in some embodiments;

FIG. 2 is a schematic view showing a partially enlarged structure of the portion A in FIG. 1;

FIG. 3 illustrates an exploded structural schematic of a beam window structure in some embodiments;

fig. 4 shows a schematic structural view of the first flange in some embodiments.

Description of main reference numerals:

1000-beam window structure;

100-a first flange; 110-a first liquid cooling channel; 120-a first flange hole; 130-boss; 140-a first fitting groove;

200-beam window;

300-a second flange; 310-a second liquid cooling channel; 320-a second flange hole; 330-sinking groove; 340-a second fitting groove;

411-a first liquid inlet pipe; 412-a first outlet pipe; 421-a second liquid inlet pipe; 422-a second outlet pipe;

511-a first cover plate; 512-a second cover plate; 521-a first transfer tube; 522-a second transfer tube; 531-a first seal ring; 532-second sealing ring.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1, in an embodiment, a beam window structure 1000 is provided and can be applied to an accelerator.

In an embodiment, the beam window structure 1000 includes a first flange 100, a second flange 300, and a beam window 200. In addition, the beam window structure 1000 is configured with a beam direction, and the first flange 100, the beam window 200, and the second flange 300 may be sequentially disposed along the beam direction. And the bundle window 200 is sealingly disposed between the first flange 100 and the second flange 300. In some embodiments, the first flange 100 and the second flange 300 may be fixed by bolting, and the beam window 200 may be fixedly clamped between the first flange 100 and the second flange 300, which may also facilitate subsequent replacement of the beam window 200.

In addition, the first flange 100 is provided with a first liquid cooling channel 110 for heat dissipation of the beam window 200. The second flange 300 is provided with a second liquid cooling channel 310 for heat dissipation of the beam window 200.

In the working process, flowing liquid cooling working media are introduced into the first liquid cooling channel 110 and the second liquid cooling channel 310. The liquid cooling working medium can be selected from tap water or pure water, and can exchange heat with the contacted flange so as to quickly absorb heat in the corresponding flange and realize heat dissipation. A part of the heat generated on the beam window 200 can be transferred to the liquid cooling medium in the first liquid cooling channel 110 through the first flange 100, and the part of the liquid cooling medium takes away the heat in the first flange 100. Likewise, another portion of the heat on the beam window 200 may be transferred to the liquid-cooled working fluid in the second liquid-cooled channel 310 through the second flange 300, and the portion of the liquid-cooled working fluid may carry away the heat in the second flange 300. Therefore, forced convection cooling of the beam window 200 can be realized, heat on the beam window 200 is taken away in real time, heat accumulation on the beam window 200 is reduced, and normal use of the beam window structure 1000 is ensured.

As shown in fig. 1 and 3, further, in some embodiments, the beam window structure 1000 further includes a first transfer tube 521 and a second transfer tube 522. The first adapter pipe 521 may be sealingly connected to an end of the first flange 100 remote from the bundle window 200 by welding or the like, and the first adapter pipe 521 may be used to connect upstream equipment in the accelerator. The second transfer tube 522 may be sealingly connected to an end of the second flange 300 remote from the bundle window 200 by welding or the like, and the second transfer tube 522 may be used to connect downstream equipment in the accelerator. In the embodiment, by providing the first transfer pipe 521 and the second transfer pipe 522, the beam window structure 1000 can be connected with different upstream and downstream devices, so that the beam window structure 1000 can adapt to the requirements of different accelerator environments, and has higher universality. It is understood that the first adapter pipe 521, the first flange 100, the beam window 200, the second flange 300, and the second adapter pipe 522 may be coaxially disposed.

In some embodiments, as shown in fig. 1, the first liquid cooling channel 110 may be disposed on a side of the first flange 100 away from the beam window 200. In addition, a side of the first liquid cooling channel 110 away from the beam window 200 may have an opening structure and may be closed by the first cover plate 511. Specifically, the first cover plate 511 may cover the opening structure of the first liquid cooling channel 110, and may be fixedly connected to the first flange 100 in a sealing manner by welding or the like.

In other embodiments, the first liquid cooling channel 110 may also be formed at a middle position of the first flange 100 along the axial direction of the beam window structure 1000, and a side of the beam window structure away from the beam window 200 is a closed structure. The axial direction of the beam window structure 1000 may refer to the extending direction of the central axis L of the beam window structure 1000.

Referring again to fig. 3 and 4, in some embodiments, the first flange 100 is further configured with a first flange aperture 120. The first liquid cooling channel 110 may be disposed around the first flange hole 120, and has a non-closed annular structure, i.e., the first liquid cooling channel 110 may include two ends.

In addition, the beam window structure 1000 further includes a first liquid inlet pipe 411 and a first liquid outlet pipe 412. The first liquid inlet pipe 411 and the first liquid outlet pipe 412 can be connected to the first cover plate 511 in a sealing manner by welding or screwing, and are all communicated with the first liquid cooling channel 110. In an embodiment, the first liquid inlet pipe 411 may be aligned with and communicated with one end of the first liquid cooling channel 110, and the first liquid outlet pipe 412 may be aligned with and communicated with the other end of the first liquid cooling channel 110.

In some embodiments, the first liquid inlet pipe 411 and the first liquid outlet pipe 412 are both L-shaped pipes, and are both disposed on the side of the first cover plate 511 away from the beam window 200 in a protruding manner. The first liquid inlet pipe 411 and the first liquid outlet pipe 412 can be used for connecting liquid cooling working medium pipelines, so that the circulation of liquid cooling working medium can be realized. In some embodiments, the heights of the first liquid inlet pipe 411 and the first liquid outlet pipe 412 are at least 15mm along the axial direction of the beam window structure 1000, so as to facilitate the installation of nuts and the like.

In some embodiments, as shown in fig. 1, the second liquid cooling channel 310 may be disposed on a side of the second flange 300 remote from the beam window 200. In addition, a side of the second liquid cooling channel 310 away from the beam window 200 may be an opening structure and may be closed by a second cover plate 512. Specifically, the second cover plate 512 may be disposed at the opening structure of the second liquid cooling channel 310, and may be fixedly connected to the second flange 300 in a sealing manner by welding or the like.

In other embodiments, the second liquid cooling channel 310 may also be formed at a middle position of the second flange 300 along the axial direction of the beam window structure 1000, and a side away from the beam window 200 is a closed structure.

Referring again to fig. 3, in some embodiments, the second flange 300 is further configured with a second flange hole 320, the second flange hole 320 being disposed coaxially opposite the first flange hole 120. The second liquid cooling channel 310 may be disposed around the second flange hole 320, and is in a non-closed annular structure, that is, the second liquid cooling channel 310 may also include two ends.

In some embodiments, the second liquid cooling channel 310 may be centered with respect to the central axis L of the beam window structure 1000 with respect to the first liquid cooling channel 110. That is, both end portions of the first liquid cooling passage 110 and both end portions of the second liquid cooling passage 310 are provided on both sides of the beam window structure 1000 facing backward.

In addition, the beam window structure 1000 further includes a second liquid inlet pipe 421 and a second liquid outlet pipe 422. The second liquid inlet pipe 421 and the second liquid outlet pipe 422 can be connected to the second cover plate 512 in a sealing manner by welding or screwing, and are both communicated with the second liquid cooling channel 310. In an embodiment, the second liquid inlet pipe 421 can be aligned with and communicated with the center of one end of the second liquid cooling channel 310, and the second liquid outlet pipe 422 can be aligned with and communicated with the center of the other end of the second liquid cooling channel 310.

In the embodiment, the second liquid inlet pipe 421 and the second liquid outlet pipe 422 are both L-shaped pipes, and are both disposed on the side of the second cover plate 512 away from the beam window 200 in a protruding manner, and the second liquid inlet pipe 421 and the second liquid outlet pipe 422 can be used for connecting liquid cooling working medium pipelines for liquid cooling working medium circulation. In some embodiments, the heights of the second liquid inlet pipe 421 and the second liquid outlet pipe 422 are at least 15mm along the axial direction of the beam window structure 1000, so as to facilitate the installation of nuts and the like.

In some embodiments, as shown in fig. 1, the second liquid cooling channel 310 may be located on a side of the first liquid cooling channel 110 near the central axis L of the beam window structure 1000 along the radial direction of the beam window structure 1000, so as to further improve the heat dissipation efficiency in the beam window 200.

As shown in fig. 1 to 3, further, a boss 130 is convexly provided at a side of the first flange 100 adjacent to the bundle window 200. The boss 130 may have an annular structure around the first flange hole 120, and a circumferential side of the bundle window 200 may be placed on the boss 130 and supported by the boss 130. In an embodiment, the diameter of the beam window 200 may be equal to or less than the outer diameter of the boss 130, and the diameter of the beam window 200 is greater than the diameter of the first flange hole 120 to ensure that the circumferential side of the beam window 200 is stably placed on the boss 130.

Correspondingly, a countersink 330 opposite to the boss 130 is formed on one side of the second flange 300 near the beam window 200. The sink 330 may be disposed around the second flange hole 320, and a side of the sink 330 adjacent to the second flange hole 320 is in an open structure. In an embodiment, the boss 130 and the beam window 200 are inserted together in the countersink 330 to provide a corresponding protection function for the beam window 200.

In some embodiments, the height of the boss 130 may be set to 3 mm-5 mm along the axial direction of the bundle window structure 1000, so as to ensure that the boss 130 lifts the bundle window 200 and cooperates with the countersink 330 to wrap the periphery of the bundle window 200, thereby avoiding the bundle window 200 from being exposed to the external environment in a large area. Illustratively, in some embodiments, the height of the boss 130 may be set to 3mm, 3.5mm, 3.7mm, 4.2mm, 4.6mm, 4.9mm, 5mm, or any other value from 3mm to 5mm.

In addition, the outer diameter of the sinking groove 330 may be greater than the outer diameter of the boss 130, and the difference between the outer diameter of the sinking groove 330 and the outer diameter of the boss 130 may be between 1mm and 2mm, so that the boss 130 may be ensured to be smoothly inserted into the sinking groove 330, so that the bundle window 200 is wrapped in the sinking groove 330, and the bundle window 200 is prevented from being exposed to the external environment in a large area. Illustratively, in some embodiments, the difference between the outer diameter of sink 330 and the outer diameter of boss 130 may be set to any other value of 1mm, 1.2mm, 1.5mm, 1.7mm, 2mm, or 1 mm-2 mm.

In an embodiment, the edge of the boss 130 near the side of the first flange hole 120 and the edge of the side far from the first flange hole 120, and the edge of the countersink 330 near one end of the first flange 100 may be provided with rounded corners, and the dimension of the rounded corners is not greater than 1mm, so as to prevent the edges of the boss 130 and the edges of the countersink 330 from scratching the beam window 200 during the assembly process.

As shown in fig. 1 to 3, the beam window structure 1000 further includes a first seal ring 531 and a second seal ring 532. The first sealing ring 531 is abutted between the first flange 100 and the beam window 200, so that the sealing connection between the first flange 100 and the beam window 200 can be realized. The second sealing ring 532 is abutted between the second flange 300 and the beam window 200, so that the second flange 300 and the beam window 200 can be in sealing connection.

Specifically, the boss 130 is provided with a first assembly groove 140 facing to one side of the beam window 200, and the first seal ring 531 may be embedded in the first assembly groove 140. Thus, the first seal ring 531 is prevented from being moved at will with respect to the first flange 100 and the bundle window 200 to affect sealability. In an embodiment, the edge position of the first fitting groove 140 near one end of the beam window 200 and the edge position of the first fitting groove far from one end of the beam window 200 are provided with rounded corners, and the size of the rounded corners is not more than 0.2mm.

In an embodiment, along the radial direction of the beam window structure 1000, the center of the first assembly groove 140 may coincide with the center of the first liquid cooling channel 110, so that heat deposited on the beam window 200 can be guaranteed to be timely taken away by the liquid cooling working medium in the first flange 100 and the first liquid cooling channel 110.

One side of the first sealing ring 531 near the bundle window 200 may protrude with respect to the first fitting groove 140, so that the first sealing ring 531 abuts against the bundle window 200 to form a sealing connection. In an embodiment, the depth of the first fitting groove 140 may be 1/3 to 2/3 of the height of the first sealing ring 531 when not under pressure along the axial direction of the beam window structure 1000. On the one hand, the probability that the first seal ring 531 is arbitrarily separated from the first fitting groove 140 can be reduced, and on the other hand, the effective contact between the first seal ring 531 and the beam window 200 can be ensured, so that the sealing performance of the connecting position can be ensured. Illustratively, in some embodiments, the depth of the first fitting groove 140 may be 1/3, 1/2, 2/3, or any other value of 1/3-2/3 of the height of the first seal ring 531 when not under pressure along the axial direction of the beam window structure 1000.

In addition, when the first sealing ring 531 is not pressed, the distance between the first sealing ring 531 and the sidewalls of both sides of the first fitting groove 140 may be set to 0.3mm to 0.5mm. On the one hand, can provide sufficient space for the deformation of first sealing washer 531 when receiving the extrusion, on the other hand, also can provide effective spacing effect for first sealing washer 531, reduce first sealing washer 531 and move at will with respect to first flange 100 and restraint window 200 possibility, ensure the leakproofness of hookup location. Illustratively, in some embodiments, when the first seal ring 531 is not pressed, the distance between the first seal ring 531 and the side walls of the first fitting groove 140 may be set to 0.3mm, 0.32mm, 0.35mm, 0.37mm, 0.42mm, 0.46mm, 0.49mm, 0.5mm, or any other value from 0.3mm to 0.5mm.

In some embodiments, the cross section of the first sealing ring 531 may be regular hexagon, and two opposite edges of the first sealing ring 531 are in abutment with the bottom of the first assembly groove 140 and the beam window 200 in a one-to-one correspondence manner, so as to ensure the tightness of the connection position between the first sealing ring 531 and the first flange 100 and the beam window 200. Additionally, in some embodiments, the first seal ring 531 may be made of an aluminum magnesium alloy.

In other embodiments, the cross-section of the first seal ring 531 may be configured in a regular octagon shape. And two opposite edges of the first sealing ring 531 are in butt joint with the groove bottom of the first assembly groove 140 and the binding window 200 in a one-to-one correspondence.

As shown in fig. 1 to 3, in some embodiments, the groove bottom of the sinking groove 330 is provided with a second assembly groove 340 facing to one side of the bundle window 200, and the second sealing ring 532 may be embedded in the second assembly groove 340, so that the second sealing ring 532 may be prevented from being randomly moved relative to the second flange 300 and the bundle window 200 to affect the sealability. In an embodiment, the second assembly groove 340 is provided with a rounded corner at an edge position near to one end of the beam window 200 and an edge position far from one end of the beam window 200, and the rounded corner is not more than 0.2mm.

In an embodiment, along the radial direction of the beam window structure 1000, the center of the second assembly groove 340 may coincide with the center of the second liquid cooling channel 310, so as to ensure that the heat deposited on the beam window 200 can be timely taken away by the second flange 300 and the liquid cooling working medium in the second liquid cooling channel 310.

The side of the second sealing ring 532 adjacent to the bundle window 200 may protrude with respect to the second fitting groove 340 so that the second sealing ring 532 abuts against the bundle window 200 to form a sealed connection. In an embodiment, the depth of the second fitting groove 340 may be 1/3 to 2/3 of the height of the second sealing ring 532 when not under pressure along the axial direction of the beam window structure 1000. On the one hand, the probability that the second seal ring 532 is separated from the second fitting groove 340 at will can be reduced, and on the other hand, the second seal ring 532 can be effectively abutted against the beam window 200, so that the sealing performance of the connecting position can be ensured. Illustratively, in some embodiments, the depth of the second fitting groove 340 may be 1/3, 1/2, 2/3, or any other value of 1/3-2/3 of the height of the second seal ring 532 when not under pressure along the axial direction of the beam window structure 1000.

In addition, when the second sealing ring 532 is not pressed, the distance between the second sealing ring 532 and the sidewalls of both sides of the second fitting groove 340 may be set to 0.3mm to 0.5mm. On the one hand, sufficient space can be provided for deformation of the second sealing ring 532 when the second sealing ring 532 is extruded, on the other hand, an effective limiting effect can be provided for the second sealing ring 532, the possibility that the second sealing ring 532 moves randomly relative to the second flange 300 and the beam window 200 is reduced, and the tightness of the connecting position is ensured. Illustratively, in some embodiments, when the second seal ring 532 is not compressed, the distance between the second seal ring 532 and the sidewalls of both sides of the second fitting groove 340 may be set to be 0.3mm, 0.32mm, 0.35mm, 0.37mm, 0.42mm, 0.46mm, 0.49mm, 0.5mm, or any other value from 0.3mm to 0.5mm.

In some embodiments, the cross section of the second sealing ring 532 may be regular hexagon, and two opposite edges of the second sealing ring 532 are in abutment with the bottom of the second assembly groove 340 and the beam window 200 in a one-to-one correspondence manner, so as to ensure the tightness of the connection position between the second sealing ring 532 and the second flange 300 and the beam window 200. Additionally, in some embodiments, the second seal ring 532 may be made of an aluminum magnesium alloy.

In other embodiments, the cross-section of the second seal ring 532 may also be configured in the shape of a regular octagon or the like. And two opposite edges of the second sealing ring 532 are in butt joint with the bottom of the second assembly groove 340 and the binding window 200 in a one-to-one correspondence.

As shown in fig. 1 and 2, in some embodiments, the second fitting groove 340 may be located at a side of the first fitting groove 140 near the central axis L of the beam window structure 1000 in the radial direction of the beam window structure 1000. Accordingly, the first seal ring 531 and the second seal ring 532 may be disposed in a staggered manner along the radial direction of the beam window structure 1000, so as to prevent the beam window 200 from being damaged due to excessive local stress. In addition, the inner diameter of the first fitting groove 140 is larger than the outer diameter of the second fitting groove 340, and the difference between the inner diameter of the first fitting groove 140 and the outer diameter of the second fitting groove 340 may be set to 4mm to 5mm, so that the beam window 200 is prevented from being damaged by a large shearing force. Illustratively, in some embodiments, the difference between the inner diameter of the first fitting groove 140 and the outer diameter of the second fitting groove 340 may be set to 4mm, 4.2mm, 4.5mm, 4.8mm, 5mm, or any other value from 4mm to 5mm.

In other embodiments, the centerline of the first seal ring 531 is not precluded from being disposed coincident with the centerline of the second seal ring 532 along the radial direction of the beam window structure 1000.

In an embodiment, the beam window 200 may be made of beryllium or dispersed copper, which may have advantages of good mechanical properties, low heat dissipation and air release, and the like, so that the beam window structure 1000 may be suitable for a particle accelerator with high repetition frequency, power and current intensity levels. In addition, the thickness of the beam window 200 may be set to 0.5mm to 2mm along the axial direction of the beam window structure 1000, and also sufficient structural strength of the beam window 200 may be ensured. Illustratively, the thickness of the beam window 200 may be set to 0.5mm, 0.65mm, 0.95mm, 1mm, 1.45mm, 1.8mm, 2mm, or any other value from 0.5mm to 2mm.

In the embodiment, the roughness of the two side surfaces of the beam window 200 may be set to 0.8 μm to 1.6 μm, so that the sealing performance of the connection position between the beam window 200 and the first seal ring 531 and the second seal ring 532 can be ensured. Illustratively, in some embodiments, the roughness of the surfaces of both sides of the beam window 200 may be set to any of the other values of 0.8 μm, 0.95 μm, 1.2 μm, 1.42 μm, 1.5 μm, 1.58 μm, 1.6 μm, or 0.8 μm-1.6 μm.

In summary, the beam window structure 1000 provided in the embodiment has a simple structure and low cost, and can realize rapid heat dissipation of the beam window 200, so as to ensure normal use of the beam window structure 1000.

In addition, an accelerator is provided in an embodiment, and may include the beam window structure 1000 provided in an embodiment.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (10)

1. A beam window structure, characterized in that the beam window structure is configured with a beam direction, the beam window structure comprising a first flange (100), a beam window (200) and a second flange (300) arranged in sequence along the beam direction;

the beam window (200) is hermetically arranged between the first flange (100) and the second flange (300), a first liquid cooling channel (110) is arranged on the first flange (100), and a second liquid cooling channel (310) is arranged on the second flange (300).

2. The beam window structure according to claim 1, characterized in that the first flange (100) is further provided with a first flange hole (120);

the first liquid cooling channel (110) is arranged on the periphery of the first flange hole (120) in a surrounding mode and is of a non-closed annular structure.

3. The beam window structure according to claim 2, characterized in that the second flange (300) is further provided with a second flange hole (320);

the second liquid cooling channel (310) is arranged around the periphery of the second flange hole (320) in a surrounding mode, the second liquid cooling channel (310) and the first liquid cooling channel (110) are not of a closed annular structure, and the second liquid cooling channel and the first liquid cooling channel are in central symmetry with respect to a central axis L of the beam window structure.

4. A beam window arrangement according to any one of claims 1-3, characterized in that the second liquid cooling channel (310) is located at a side of the first liquid cooling channel (110) close to the central axis L of the beam window arrangement.

5. The beam window structure according to claim 1, wherein a first assembly groove (140) is formed in a side, close to the beam window (200), of the first flange (100), a first sealing ring (531) is embedded in the first assembly groove (140), and the first sealing ring (531) is abutted between the first flange (100) and the beam window (200);

a second assembly groove (340) is formed in one side, close to the beam window (200), of the second flange (300), a second sealing ring (532) is embedded in the second assembly groove (340), and the second sealing ring (532) is abutted between the second flange (300) and the beam window (200).

6. The beam window structure according to claim 5, wherein an inner diameter of the first fitting groove (140) is larger than an outer diameter of the second fitting groove (340), and a difference between the inner diameter of the first fitting groove (140) and the outer diameter of the second fitting groove (340) is set to 4mm to 5mm.

7. The beam window structure according to claim 5 or 6, wherein a boss (130) is convexly arranged on one side of the first flange (100) close to the beam window (200), and the first assembly groove (140) is opened on the boss (130);

the diameter of the beam window (200) is smaller than or equal to the outer diameter of the boss (130).

8. The beam window structure according to claim 7, wherein a sinking groove (330) is formed on one side of the second flange (300) close to the beam window (200), and the second assembly groove (340) is formed at the bottom of the sinking groove (330);

the outer diameter of the sinking groove (330) is larger than that of the boss (130), and the difference between the outer diameter of the sinking groove (330) and the outer diameter of the boss (130) is set to be 1-2 mm.

9. The beam window structure according to claim 1, wherein the thickness of the beam window (200) is 0.5-2 mm, and the roughness of both side surfaces of the beam window (200) is 0.8-1.6 μm.

10. An accelerator comprising a beam window structure as claimed in any one of claims 1 to 9.