A bundle window structure

Abstract

The application discloses a beam window structure and relates to the technical field of accelerators. The beam window structure comprises a first flange, a second flange and a beam window. The first flange is connected to one side of the second flange, and the beam window is abutted between the second flange and the first flange. The first flange is provided with a first flange hole, and a water cooling channel for cooling water is further arranged in the first flange, and the water cooling channel is arranged along the circumference of the first flange hole. The beam window structure provided by the application can improve the heat dissipation efficiency of the beam window.

Description

Technical Field

[0001] The present application relates to the field of accelerator technology, and in particular to a beam window structure. Background Art

[0002] The waste beam barrel is a crucial piece of equipment in a particle accelerator, playing a crucial role in the system's beam regulation. The waste beam barrel's beam window is a crucial component, used to isolate and protect the ultrahigh vacuum environment. During accelerator operation, the particle beam passes through the beam window. During this process, some particles deposit on the waste beam barrel's beam window, causing a temperature rise.

[0003] In the existing waste beam tube beam window structure, multiple structures are required to transfer the heat of the beam window to the outside, which undoubtedly increases the heat transfer path and affects the heat dissipation efficiency of the beam window. Summary of the Invention

[0004] The present application provides a beam window structure to improve the heat dissipation efficiency of the beam window.

[0005] The present application provides a beam window structure, comprising a first flange, a second flange and a beam window;

[0006] The first flange is connected to one side of the second flange, and the beam window is abutted between the second flange and the first flange;

[0007] The first flange is provided with a first flange hole. The first flange is also provided with a water cooling channel for cooling water to pass through. The water cooling channel is arranged along the circumference of the first flange hole.

[0008] In some possible implementations, the water cooling channel is opened on a side of the first flange away from the second flange, and the side of the water cooling channel away from the second flange is configured with an opening structure;

[0009] The beam window structure also includes a cover plate, a first water-cooling pipe and a second water-cooling pipe. The cover plate covers the opening structure. The first water-cooling pipe and the second water-cooling pipe are connected to a side of the cover plate away from the second flange and communicate with the water-cooling channel.

[0010] Based on the above technical solution, in this application, the water-cooling channel is integrated into the first flange that secures the beam window. This allows the first flange to transfer heat from the beam window directly to the cooling water in the water-cooling channel, shortening the heat conduction path between the beam window and the cooling water, thereby improving heat conduction efficiency and the beam window's heat dissipation efficiency. Furthermore, this simplifies the overall structure of the beam window, eliminating the need for a separate water-cooling structure, thereby reducing the cost of the beam window structure.

[0011] In some possible implementations, the beam window structure further includes a third flange and a first transfer tube, wherein the third flange is connected to one end of the first transfer tube;

[0012] One end of the third flange away from the first transfer tube is connected to a side of the second flange close to the first flange, and the third flange is arranged around the circumference of the first flange;

[0013] One end of the first water-cooling pipe away from the first flange and one end of the second water-cooling pipe away from the first flange are both sealed and passed through the first transfer pipe.

[0014] In some possible implementations, the beam window structure further includes a first sealing ring, wherein the first sealing ring abuts between the third flange and the second flange.

[0015] In some possible implementations, the beam window structure further includes a fourth flange, the fourth flange being connected to an end of the first transfer tube away from the third flange, and the fourth flange being used to connect to downstream equipment.

[0016] In some possible implementations, the second flange is provided with a second flange hole, and a side of the second flange close to the first flange is provided with an annular assembly groove, the assembly groove being arranged around the second flange hole;

[0017] The beam window structure further includes a second sealing ring, which is disposed in the assembly groove and abuts against a side surface of the beam window away from the first flange.

[0018] In some possible implementations, the assembly groove includes a first side wall, a bottom wall, and a second side wall, wherein the first side wall is located on a side of the bottom wall close to the second flange hole, and the second side wall is located on a side of the bottom wall away from the second flange hole;

[0019] An included angle α between the first side wall and the bottom wall is 120°≤α≤150°.

[0020] In some possible implementations, the assembly groove is configured with a first dimension h1 extending axially along the first flange of the beam window structure;

[0021] When the second sealing ring is not subjected to external force, the second sealing ring is configured with a second dimension h2 extending along the axial direction of the beam window structure.

[0022] In some possible implementations, the cross section of the second sealing ring parallel to the axial direction of the beam window structure is a polygon, and the polygon includes at least four vertex angles;

[0023] One of the top corners abuts against the beam window, and the other top corner abuts against the bottom wall of the assembly groove.

[0024] In some possible embodiments, the beam window structure further includes a second transfer tube and a fifth flange, wherein the second transfer tube is connected to a side of the second flange away from the first flange, and the fifth flange is connected to an end of the second transfer tube away from the second flange, and the fifth flange is used to connect to upstream equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 Schematic diagrams of cross-sectional structures of beam window structures in some embodiments are shown;

[0027] Figure 2 shows a partial cross-sectional structural schematic diagram of a beam window structure in some embodiments;

[0028] Figure 3 Shown Figure 2 A schematic diagram of the partially enlarged structure of part A;

[0029] Figure 4 Shown Figure 2 A schematic diagram of the partially enlarged structure of part B;

[0030] Figure 5 A schematic diagram of the dimension marking of part of the beam window structure in the embodiment is shown;

[0031] Figure 6 A partial exploded structural diagram of a beam window structure in some embodiments is shown.

[0032] Description of main component symbols:

[0033] 1000-beam window structure;

[0034] 110-first flange; 111-first group of bolt holes; 112-water-cooling channel; 1121-opening structure; 113-first flange hole; 114-boss; 120-second flange; 121-sunk groove; 122-assembly groove; 1221-first side wall; 1222-bottom wall; 1223-second side wall; 123-second group of bolt holes; 124-third group of bolt holes; 125-first pressure rib; 126-second flange hole; 130-third flange; 131-fourth group of bolt holes; 132-second pressure rib; 140-fourth flange; 150-fifth flange; 210-first sealing ring; 220-second sealing ring; 300-beam window; 410-first transfer tube; 420-second transfer tube; 510-cover plate; 521-first water-cooling pipe; 522-second water-cooling pipe. DETAILED DESCRIPTION

[0035] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0038] In the present application, unless specifically defined otherwise, the terms "mount", "connected", "connecting", "fixed", and "fixedly" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] As shown in Figure 1 An embodiment provides a beam window structure 1000, which can be applied to an accelerator device to isolate different atmosphere environments. For example, the beam window structure 1000 can be used in a waste beam bucket in the accelerator device to isolate and protect a high-vacuum environment.

[0041] As shown in Figure 1 The beam window structure 1000 can include a first flange 110, a second flange 120, and a beam window 300.

[0042] The beam window 300 can be arranged on one side of the second flange 120. The first flange 110 can be connected to the side of the second flange 120 close to the beam window 300, and can press the beam window 300 to the second flange 120 to fix the beam window 300. That is, the beam window 300 can be fixed between the first flange 110 and the second flange 120.

[0043] Further in combination with Figure 6 It can be understood that the first flange 110 is provided with a first flange hole 113, and the second flange 120 can be provided with a second flange hole 126. The first flange hole 113 and the second flange hole 126 are coaxially opposite. The beam window 300 can be located between the first flange hole 113 and the second flange hole 126, and isolate the first flange hole 113 and the second flange hole 126.

[0044] In an embodiment, the first flange 110 is further provided with a water cooling channel 112 for cooling water to pass through. The water cooling channel 112 can be arranged on the side of the first flange hole 113.

[0045] During operation, when a particle beam, such as an electron beam, passes through the beam window 300, a portion of the electron beam will be deposited on the surface of the beam window 300 due to the blocking effect of the beam window 300, causing the temperature of the beam window 300 to rise. In this embodiment, a water cooling channel 112 is integrated into the first flange 110, and the first flange 110 can be in direct contact with the beam window 300. As a result, heat in the beam window 300 can be transferred through the first flange 110 to the cooling water in the water cooling channel 112, and then carried away by the cooling water, thereby achieving real-time cooling of the beam window 300, reducing heat accumulation at the beam window 300, and preventing the beam window 300 from overheating and affecting the normal operation of the accelerator device.

[0046] It will be appreciated that in this embodiment, the water-cooling channel 112 is integrated into the first flange 110. The first flange 110 and the second flange 120 cooperate to secure the beam window 300 while also connecting the beam window 300 to the water-cooling structure. This simplifies the overall structure of the beam window structure 1000 and reduces its cost. Furthermore, by directly transferring heat from the beam window 300 to the cooling water via the first flange 110, the heat transfer path from the beam window 300 to the cooling water is shortened, improving the heat dissipation efficiency of the beam window 300. Furthermore, the securing of the beam window 300 by the first flange 110 and the second flange 120 facilitates subsequent replacement of the beam window 300.

[0047] like Figure 1 and Figure 6 As shown, in some embodiments, the water-cooling channel 112 can be provided on a side of the first flange 110 away from the second flange 120. The water-cooling channel 112 can be arranged around the first flange hole 113 and generally have a non-enclosed annular structure. Furthermore, the side of the water-cooling channel 112 away from the second flange 120 can be an opening 1121.

[0048] The beam window structure 1000 also includes a cover plate 510, a first water-cooling tube 521, and a second water-cooling tube 522. The cover plate 510 can cover the opening structure 1121 of the water-cooling channel 112 and be welded to the first flange 110. In an embodiment, the cover plate 510 can seal the opening structure 1121 of the water-cooling channel 112. In some embodiments, the thickness of the cover plate 510 can be set to 3mm to 5mm. For example, the thickness of the cover plate 510 can be set to 3mm, 3.2mm, 3.5mm, 3.8mm, 4.1mm, 4.5mm, 4.7mm, 5mm, or any other value between 3mm and 5mm.

[0049] Both the first water-cooling pipe 521 and the second water-cooling pipe 522 are fixedly connected to the side of the cover plate 510 away from the first flange 110 by welding. Both the first water-cooling pipe 521 and the second water-cooling pipe 522 communicate with the water-cooling channel 112 through the through-holes in the cover plate 510. Furthermore, the first water-cooling pipe 521 can be positioned near one end of the water-cooling channel 112, while the second water-cooling pipe 522 can be positioned near the other end of the water-cooling channel 112. In this embodiment, the first water-cooling pipe 521 can serve as a cooling water inlet pipe, allowing cooling water to be introduced into the water-cooling channel 112. The second water-cooling pipe 522 can serve as a cooling water outlet pipe, allowing cooling water to be discharged from the water-cooling channel 112.

[0050] During operation, relatively low-temperature cooling water can be fed into the water-cooling channel 112 of the first flange 110 via the first water-cooling pipe 521. Once in the water-cooling channel 112, the cooling water can exchange heat with the first flange 110, removing heat from the beam window 300 and providing real-time heat dissipation. The cooling water heats up as the heat exchange proceeds, and the relatively high-temperature cooling water is then discharged from the water-cooling channel 112 via the second water-cooling pipe 522.

[0051] Combined together Figure 2 and Figure 3 In some embodiments, a recessed groove 121 is defined on the side of the second flange 120 proximate to the first flange 110. The recessed groove 121 may be recessed away from the first flange 110. Alternatively, the recessed groove 121 may be circumferentially disposed around the second flange hole 126, forming a closed annular groove. Furthermore, the side of the recessed groove 121 proximate to the second flange hole 126 may be open, allowing the recessed groove 121 to communicate with the second flange hole 126. In some embodiments, the circumferential edge of the beam window 300 may extend into the recessed groove 121.

[0052] In some embodiments, the beam window 300 may be circular. Correspondingly, the contour of the side of the recessed groove 121 facing away from the second flange hole 126 may also be circular, matching the beam window 300. Furthermore, the inner diameter of the recessed groove 121 may be slightly larger than the outer diameter of the beam window 300, ensuring smooth insertion of the beam window 300 into the recessed groove 121 while also providing circumferential positioning of the beam window 300. In some embodiments, the inner diameter of the recessed groove 121 may be 1 mm to 2 mm larger than the outer diameter of the beam window 300. For example, the inner diameter of the recessed groove 121 may be 1 mm, 1.2 mm, 1.35 mm, 1.5 mm, 1.6 mm, 1.75 mm, 1.9 mm, 2 mm, or any other value between 1 mm and 2 mm.

[0053] like Figure 2 、 Figure 3 and Figure 6As shown, a second sealing ring 220 is disposed between the second flange 120 and the beam window 300. It will be appreciated that one side of the second sealing ring 220 may abut the second flange 120, while the other side of the second sealing ring 220 may abut the beam window 300. The second sealing ring 220 provides a seal between the second flange 120 and the beam window 300 to prevent air leakage, while also providing a seal at the connection between the first flange 110 and the second flange 120. In some embodiments, the second sealing ring 220 may be made of an aluminum-magnesium alloy.

[0054] In some embodiments, an annular assembly groove 122 is further defined on the side of the second flange 120 close to the first flange 110 . The assembly groove 122 can be disposed around the second flange hole 126 and located on the side of the recessed groove 121 close to the second flange hole 126 .

[0055] In this embodiment, the mounting groove 122 may be recessed relative to the bottom of the recessed groove 121, away from the beam window 300, and the opening of the mounting groove 122 may be connected to the bottom of the recessed groove 121. The second sealing ring 220 may be disposed in the mounting groove 122. The mounting groove 122 may provide radial restraint for the second sealing ring 220, preventing the second sealing ring 220 from moving freely relative to the second flange 120 and the beam window 300, thereby affecting the sealing effect.

[0056] The assembly groove 122 may include a first sidewall 1221, a bottom wall 1222, and a second sidewall 1223. The bottom wall 1222 may be opposite the beam window 300. The first sidewall 1221 is located on the side of the bottom wall 1222 closer to the second flange hole 126, and the second sidewall 1223 is located on the side of the bottom wall 1222 farther from the second flange hole 126. Furthermore, a gap may exist between the second sealing ring 220 and the second sidewall 1223. The gap size may be set to 0.2 mm to 0.4 mm, ensuring sufficient deformation space for the second sealing ring 220. For example, the gap size between the second sealing ring 220 and the second sidewall 1223 may be set to 0.2 mm, 0.25 mm, 0.3 mm, 0.32 mm, 0.36 mm, 0.4 mm, or any other value between 0.2 mm and 0.4 mm.

[0057] In some embodiments, the first sidewall 1221 may be inclined relative to the axial direction of the beam window structure 1000. The axial direction of the beam window structure 1000 may refer to the extending direction of the axis L. Specifically, the first sidewall 1221 gradually inclines toward the axis L of the beam window structure 1000 from the end away from the beam window 300 to the end close to the beam window 300.

[0058] Combined together Figure 5Correspondingly, the first side wall 1221 can cooperate with the bottom wall 1222 to form an angle α, which is an obtuse angle and 120°≤α≤150°. On the one hand, it is convenient to install the second sealing ring 220 in the assembly groove 122, and when the second sealing ring 220 is squeezed, the expansion direction of the second sealing ring 220 can be guided so that the second sealing ring 220 expands centripetally. On the other hand, it is also convenient to discharge the gas in the sink 121 and the assembly groove 122 to achieve vacuum sealing of the beam window 300. Exemplarily, the angle α between the first side wall 1221 and the bottom wall 1222 can be set to 120°, 125°, 128°, 135°, 142°, 146°, 150°, or any other value between 120° and 150°.

[0059] In some embodiments, the assembly groove 122 may be configured with a first dimension h1 extending axially along the beam window structure 1000. When the second sealing ring 220 is not subjected to external force, it may be configured with a second dimension h1 extending axially along the beam window structure 1000. 2 , On the one hand, this ensures that the second sealing ring 220 protrudes relative to the mounting groove 122, on the side closest to the beam window 300, so that it can be pressed against the beam window 300 to achieve a seal. On the other hand, this ensures that the second sealing ring 220 is retained in the mounting groove 122, preventing it from escaping from the mounting groove 122. For example, the first dimension h1 of the mounting groove 122 can be 1 / 2, 7 / 12, 2 / 3, or any other value between 1 / 2 and 2 / 3 of the second dimension h2 of the second sealing ring 220.

[0060] Furthermore, the sink 121 may be configured with a third dimension h3 extending axially along the beam window structure 1000. This third dimension h3 does not exceed the sum of half the second dimension h2 and the thickness of the beam window 300. The thickness of the beam window 300 refers to the dimension of the beam window 300 parallel to the axial direction of the beam window structure 1000. In some embodiments, the thickness of the beam window 300 may be set to 0.8 mm to 2 mm.

[0061] Furthermore, the cross-section of the second sealing ring 220 parallel to the axis of the beam window structure 1000 can be polygonal, with the polygon including at least four vertices. In some embodiments, the cross-section of the second sealing ring 220 can be a regular hexagon, correspondingly including six vertices. One vertex of the second sealing ring 220 can abut against the bottom wall 1222 of the assembly groove 122, while the other, opposite vertex can abut against a side surface of the beam window 300 proximal to the second flange 120. Thus, by compressing the second sealing ring 220 with a relatively small force, the second sealing ring 220 can be deformed and brought into contact and sealed contact with the beam window 300 and the bottom wall 1222 of the assembly groove 122, thereby improving the sealing between the second sealing ring 220 and the beam window 300, and between the second sealing ring 220 and the assembly groove 122.

[0062] In other embodiments, the second sealing ring 220 may also be configured to have a cross-sectional shape such as a quadrilateral, a pentagon, or an octagon, so that one top corner of the second sealing ring 220 abuts against the bottom wall 1222 of the assembly groove 122 , and the other top corner of the second sealing ring 220 abuts against a side surface of the beam window 300 close to the second flange 120 .

[0063] Furthermore, beam window 300 can be made of beryllium, which exhibits excellent mechanical properties and thermal conductivity, as well as reduced energy deposition and outgassing rates. This makes beam window structure 1000 highly reliable and capable of rapid heat dissipation. This also makes beam window structure 1000 suitable for use in high-repetition-rate, high-power, and high-current accelerator devices, enhancing its versatility.

[0064] like Figure 2 and Figure 3 As shown, in some embodiments, a boss 114 may be provided protruding from the side of the first flange 110 proximal to the beam window 300. The outer diameter of the boss 114 may be smaller than the outer diameter of the beam window 300. The boss 114 may abut the side of the beam window 300 distal to the second flange 120, pressing the beam window 300 into the recess 121. The height of the boss 114, parallel to the axial direction of the beam window structure 1000, may be set to 2 mm to 4 mm. For example, in some embodiments, the height of the boss 114 may be set to 2 mm, 2.3 mm, 2.6 mm, 2.9 mm, 3.1 mm, 3.5 mm, 3.8 mm, 4 mm, or any other value within the range of 2 mm to 4 mm.

[0065] like Figure 1 and Figure 6 As shown, the first flange 110 is provided with a first group of bolt holes 111, which may be distributed in an annular pattern along the circumference of the first flange 110. The second flange 120 is provided with a second group of bolt holes 123, which may be distributed in an annular pattern along the circumference of the second flange 120 and located on the side of the countersunk groove 121 away from the assembly groove 122. Furthermore, the second group of bolt holes 123 do not interfere with the countersunk groove 121, and the edge of the second group of bolt holes 123 near the countersunk groove 121 is spaced apart from the edge of the countersunk groove 121 away from the second flange holes 126, with a gap of 2 mm to 4 mm. For example, in some embodiments, the spacing gap between the edge of the second group of bolt holes 123 close to the side of the groove 121 and the edge of the side of the groove 121 away from the second flange hole 126 can be set to 2mm, 2.3mm, 2.5mm, 2.8mm, 3.1mm, 3.5mm, 3.7mm, 4mm or any other value between 2mm and 4mm.

[0066] The number of bolt holes included in the first set of bolt holes 111 is the same as the number of bolt holes included in the second set of bolt holes 123, and they correspond one to one. The first flange 110 and the second flange 120 can be fixedly connected by bolts, which can be sequentially inserted into the corresponding bolt holes in the first set of bolt holes 111 and the second set of bolt holes 123.

[0067] In this embodiment, both the first group of bolt holes 111 and the second group of bolt holes 123 include at least 16 bolt holes. This ensures a tight connection between the first flange 110 and the second flange 120, ensuring that all circumferential portions of the beam window 300 are press-sealed to prevent air leakage. For example, both the first group of bolt holes 111 and the second group of bolt holes 123 include 16 bolt holes. Furthermore, the bolt hole diameter can be set to 8 mm to 10 mm. For example, in some embodiments, the bolt hole diameter can be set to 8 mm, 8.5 mm, 9 mm, 9.5 mm, 10 mm, or any other value between 8 mm and 10 mm.

[0068] In other embodiments, the first group of bolt holes 111 and the second group of bolt holes 123 may each include 18, 19, 20, or 22 bolt holes.

[0069] like Figure 1 and Figure 6 As shown, the beam window structure 1000 further includes a third flange 130. The third flange 130 can be connected to the side of the second flange 120 that is closer to the first flange 110. The third flange 130 can be disposed around the side of the first flange 110 that is farther from the first flange hole 113. The third flange 130 can be spaced apart from the first flange 110, and the gap between the third flange 130 and the first flange 110 can be set to 8 mm to 10 mm. For example, in some embodiments, the gap between the third flange 130 and the first flange 110 can be set to 8 mm, 8.2 mm, 8.5 mm, 8.9 mm, 9.2 mm, 9.5 mm, 9.7 mm, 10 mm, or any other value between 8 mm and 10 mm.

[0070] In an embodiment, the second flange 120 is further provided with a third set of bolt holes 124 for connection to the third flange 130. The third set of bolt holes 124 can be disposed on a side of the second set of bolt holes 123 away from the recess 121 and spaced apart from the second set of bolt holes 123. The third flange 130 can be provided with a fourth set of bolt holes 131 for connection to the second flange 120. The number of bolt holes included in the third set of bolt holes 124 is the same as the number of bolt holes included in the fourth set of bolt holes 131, and the number of bolt holes corresponds one-to-one. The third flange 130 and the second flange 120 can be fixedly connected by bolts. In some embodiments, both the third set of bolt holes 124 and the fourth set of bolt holes 131 can include 20 bolt holes.

[0071] In other embodiments, the third group of bolt holes 124 and the fourth group of bolt holes 131 may each include 21, 22, or 26 bolt holes.

[0072] Combined together Figure 2 and Figure 4 The beam window structure 1000 further includes a first sealing ring 210, which can be placed between the second flange 120 and the third flange 130 to seal the connection between the second flange 120 and the third flange 130. In some embodiments, the first sealing ring 210 can be a copper sealing ring.

[0073] In addition, at least one first pressing rib 125 is protruding from one side of the second flange 120 near the first sealing ring 210. The first pressing rib 125 may be arranged around the circumference of the second flange 120. The end of the first pressing rib 125 near the first sealing ring 210 may be pointed and abut against the first sealing ring 210.

[0074] Correspondingly, at least one second pressing rib 132 is protruding from one side of the third flange 130 near the first sealing ring 210. The second pressing rib 132 may be arranged around the circumference of the third flange 130. The end of the second pressing rib 132 near the first sealing ring 210 may also be pointed and abut against the first sealing ring 210. Thus, a sealed connection between the second flange 120 and the first sealing ring 210, and between the third flange 130 and the first sealing ring 210, can be achieved with relatively low pressing force, thereby improving the sealing effect.

[0075] For example, in some embodiments, a first pressing rib 125 is protruded from a side of the second flange 120 close to the first sealing ring 210 . A second pressing rib 132 is protruded from a side of the third flange 130 close to the first sealing ring 210 .

[0076] In other embodiments, two, three, or five first pressing ribs 125 are protruded from one side of the second flange 120 near the first sealing ring 210. When there are multiple first pressing ribs 125, the multiple first pressing ribs 125 can be nested in sequence.

[0077] In other embodiments, two, three, or five second pressing ribs 132 are protruded from one side of the third flange 130 close to the first sealing ring 210. When there are multiple second pressing ribs 132, the multiple second pressing ribs 132 can be nested in sequence.

[0078] like Figure 1As shown, the beam window structure 1000 further includes a first transfer tube 410 and a fourth flange 140. The first transfer tube 410 can be connected to the end of the third flange 130 remote from the second flange 120. For example, the first transfer tube 410 can be fixedly connected to the third flange 130 by welding, thereby achieving a seal at the connection point. The fourth flange 140 can be fixedly connected to the end of the first transfer tube 410 remote from the third flange 130 by welding, and can be used to connect to downstream equipment in the accelerator device.

[0079] In other embodiments, the first transfer tube 410 and the third flange 130 , and the first transfer tube 410 and the fourth flange 140 may be fixedly connected by threaded connection, and may be sealed with a sealing ring.

[0080] The end of the first water-cooling pipe 521 away from the cover plate 510 and the end of the second water-cooling pipe 522 away from the cover plate 510 are both inserted through the first transfer pipe 410 and extend outside the first transfer pipe 410 to facilitate connection to a cooling water supply device, etc. In this embodiment, the connection between the first water-cooling pipe 521 and the first transfer pipe 410 can be secured by welding, achieving a seal to prevent air leakage. The connection between the second water-cooling pipe 522 and the first transfer pipe 410 can also be secured by welding, achieving a seal to prevent air leakage.

[0081] Furthermore, the beam window structure 1000 further includes a second transfer tube 420 and a fifth flange 150. The second transfer tube 420 can be connected to a side of the second flange 120 away from the beam window 300. In some embodiments, the second transfer tube 420 can be fixedly connected to the second flange 120 by welding, and the connection position can be sealed.

[0082] The fifth flange 150 can be connected to the end of the second transfer tube 420 away from the second flange 120. The fifth flange 150 can be used to connect to upstream equipment in the accelerator device. In an embodiment, the fifth flange 150 can be fixedly connected to the second transfer tube 420 by welding, thereby achieving a seal at the connection point.

[0083] In other embodiments, the second transfer tube 420 and the second flange 120 , and the second transfer tube 420 and the fifth flange 150 may be fixedly connected by threaded connection, and may be sealed with a sealing ring.

[0084] In summary, the beam window structure 1000 provided in this application may include the following advantages:

[0085] First, the beam window 300 is made of beryllium, which has better mechanical properties, thermal conductivity, less energy deposition and lower outgassing rate, thereby improving the overall reliability of the beam window structure 1000 and being suitable for high repetition rate, high power and high current accelerator devices.

[0086] Second, the beam window 300 realizes vacuum pressure sealing by the first flange 110 and the second flange 120 cooperating with the second sealing ring 220, and integrates the water cooling channel 112 on the first flange 110, which can make the beam window structure 1000 simpler, lower in cost, and convenient to replace.

[0087] Third, the heat in the beam window 300 can be transferred to the cooling water through the first flange 110, which can shorten the heat conduction path and improve the heat dissipation efficiency of the beam window 300.

[0088] Fourth, by setting the first adapter pipe 410 and the fourth flange 140, and the second adapter pipe 420 and the fifth flange 150, the connection of different upstream and downstream equipment can be realized, which can greatly improve the versatility of the beam window structure 1000.

[0089] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0090] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A beam window structure, characterized in that: It includes a first flange, a second flange, a second sealing ring, a cover plate, a first water-cooling pipe, a second water-cooling pipe and a beam window; The first flange is connected to one side of the second flange, and the beam window is abutted between the second flange and the first flange; The first flange is provided with a first flange hole. A water cooling channel for cooling water is further provided in the first flange. The water cooling channel is arranged along the circumference of the first flange hole. The water cooling channel is provided on a side of the first flange away from the second flange. An opening structure is provided on the side of the water cooling channel away from the second flange. The cover plate covers the opening structure. The first water cooling pipe and the second water cooling pipe are connected to a side of the cover plate away from the second flange and communicate with the water cooling channel. The second flange is provided with a second flange hole, and a side of the second flange close to the first flange is provided with an annular mounting groove, the mounting groove being arranged around the circumference of the second flange hole; the second sealing ring is arranged in the mounting groove, and the second sealing ring abuts against a surface of the beam window on a side away from the first flange; The assembly groove includes a first side wall, a bottom wall, and a second side wall, wherein the first side wall is located on a side of the bottom wall close to the second flange hole, and the second side wall is located on a side of the bottom wall away from the second flange hole; An included angle α between the first side wall and the bottom wall is 120°≤α≤150°.

2. The beam window structure according to claim 1, characterized in that: The beam window structure further includes a third flange and a first transfer tube, wherein the third flange is connected to one end of the first transfer tube; One end of the third flange away from the first transfer tube is connected to a side of the second flange close to the first flange, and the third flange is arranged around the circumference of the first flange; One end of the first water-cooling pipe away from the first flange and one end of the second water-cooling pipe away from the first flange are both sealed and passed through the first transfer pipe.

3. The beam window structure according to claim 2, characterized in that: The beam window structure further includes a first sealing ring, which is abutted between the third flange and the second flange.

4. The beam window structure according to claim 2 or 3, characterized in that: The beam window structure further includes a fourth flange connected to an end of the first transfer tube away from the third flange, and the fourth flange is used to connect to downstream equipment.

5. The beam window structure according to claim 1, characterized in that: The assembly groove is configured with a first dimension h1 extending axially along the first flange of the beam window structure; When the second sealing ring is not subjected to external force, the second sealing ring is configured with a second dimension h2 extending along the axial direction of the beam window structure. .

6. The beam window structure according to claim 1 or 5, characterized in that: The cross section of the second sealing ring parallel to the axial direction of the beam window structure is a polygon, and the polygon includes at least four vertex angles; One of the top corners abuts against the beam window, and the other top corner abuts against the bottom wall of the assembly groove.

7. The beam window structure according to claim 1, characterized in that: The beam window structure also includes a second transfer tube and a fifth flange. The second transfer tube is connected to the side of the second flange away from the first flange. The fifth flange is connected to the end of the second transfer tube away from the second flange. The fifth flange is used to connect to upstream equipment.

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