Integrated beam splitting diaphragm device applied to synchrotron radiation

Abstract

The utility model discloses an integrated beam splitting diaphragm device applied to synchrotron radiation, which is characterized by comprising an absorber main body and a cooling water pipe, the upstream end face and the downstream end face of the absorber body are each provided with a knife edge flange, and an absorber flange integrated structure is formed. Wherein the knife edge flange on the upstream end surface of the absorber main body is called as an upstream end surface knife edge flange and is positioned at the central position of the absorber main body; the knife edge flange on the downstream end face of the absorber main body is called as a downstream end face knife edge flange and is located at the eccentric position of the absorber main body; a light through hole is machined in the eccentric position of the absorber main body, one end of the light through hole is located in the eccentric position of the upstream end face knife edge flange, and the other end of the light through hole is located in the center of the downstream end face knife edge flange; an upper water cooling channel and a lower water cooling channel are arranged in the absorber main body, two ends on the same side are connected in series through a connecting pipe, and ports on the other side are respectively connected with a cooling water pipe to form a cooling water loop.

Description

Technical Field

[0001] This utility model belongs to the field of synchrotron radiation technology and relates to an integrated beam splitter device for synchrotron radiation. Background Technology

[0002] Synchrotron radiation facilities are large-scale infrastructures that generate and utilize synchrotron radiation through electron synchrotrons. Different beamlines of high-energy light sources exhibit varying peak power densities and divergence angles. To conduct various types of scientific experiments, beamlines need to modulate the synchrotron radiation, typically using apertures to limit the divergence angle and collimate the beam. With the continuous development of synchrotron radiation technology, high-energy light sources possess characteristics of high power and high power density, posing new challenges to the thermal capacity of apertures used for limiting and collimating synchrotron radiation.

[0003] The beam splitters used in existing synchrotron radiation source devices mostly employ a combination of oxygen-free copper absorbers and stainless steel flanges welded together, connecting upstream and downstream equipment to the beamline via flanges at both ends. However, due to the limited strength of oxygen-free copper, it is prone to deformation under the high heat load of synchrotron radiation, failing to meet the requirements of high-energy light source beam splitters. Furthermore, the combination of absorbers and flanges results in a large overall beam splitter device with a long axial length, occupying a significant amount of beamline space. Additionally, this combination leads to numerous weld seams in the overall device, posing a higher risk of vacuum leakage. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide an integrated beam-splitting aperture device for synchrotron radiation, characterized by its compact structure and ability to withstand high synchrotron radiation heat loads. This beam-splitting aperture can block part of the synchrotron radiation light and split part of the synchrotron radiation light; simultaneously, it aligns the center of the pipe with the center of the split beamline, thus correcting the optical path. The absorber is made of high-strength copper alloy, and the absorber and flange are integrally machined, allowing direct connection to upstream and downstream equipment of the beamline via the blade flanges at both ends of the absorber, significantly shortening the space along the optical axis; the integral machining of the absorber and flange greatly reduces weld seams, effectively reducing the risk of vacuum leakage; its built-in cooling water channel allows it to better withstand high synchrotron radiation heat loads, thus enabling the device to be widely used in high-energy synchrotron radiation beamlines.

[0005] The technical solution of this application is as follows:

[0006] An integrated beam splitter device for synchrotron radiation is characterized by comprising an absorber body 1 and a cooling water pipe 2.

[0007] The upstream and downstream ends of the absorber body 1 are respectively machined with knife-edge flanges 11, forming an integrated absorber flange structure; wherein, the knife-edge flange 11 on the upstream end of the absorber body 1 is referred to as the upstream end knife-edge flange 112; the upstream end knife-edge flange 112 is located at the center of the absorber body 1 and is used to connect upstream equipment; the knife-edge flange 11 on the downstream end of the absorber body 1 is referred to as the downstream end knife-edge flange 111; the downstream end knife-edge flange 111 is located at an off-center position of the absorber body 1 and is used to connect downstream equipment; a light-transmitting hole 12 is machined at the off-center position of the absorber body 1, one end of the light-transmitting hole 12 is located at the off-center position of the upstream end knife-edge flange 112, and the other end is located at the center position of the downstream end knife-edge flange 111.

[0008] The absorber body 1 is provided with two water-cooling channels 13, one above the other. The two ends of the two water-cooling channels 13 on the same side are connected in series by connecting pipes to realize the connection between the two water-cooling channels 13. The other end of the two water-cooling channels 13 is connected to the inlet pipe 21 and the outlet pipe 22 of the cooling water pipe 2 respectively to form a cooling water circuit.

[0009] Furthermore, the downstream end face blade flange 111 is connected to the downstream equipment through a downstream pipeline; the eccentric position of the absorber body 1 is determined by the distance between the center of the downstream pipeline and the center of the beam and the orientation of the center of the downstream pipeline; the size of the light-transmitting hole 12 is determined by the size of the spot of synchrotron radiation at the installation position of the absorber body 1.

[0010] Furthermore, the height and width of the absorber body 1 are determined by the aperture size of the upstream and downstream devices.

[0011] Furthermore, the material of the absorber body 1 is chromium zirconium copper.

[0012] Furthermore, each of the water-cooling channels 13 has a pipe connector 3 installed at both ends; the two pipe connectors 3 on the same side are connected in series by a U-shaped pipe 23 to achieve the connection between the two water-cooling channels 13.

[0013] Furthermore, the light-transmitting hole 12 is a square straight hole.

[0014] Furthermore, the water-cooling channel 13 is a circular channel with an inner diameter of 9.5 mm.

[0015] The beam splitter is an integrated beam splitter, mainly consisting of an absorber body, a cooling water pipe, and a pipe connector.

[0016] The absorber body is made of chromium zirconium copper material, which has higher strength, enabling it to withstand higher heat loads without easily deforming; it also has higher hardness, giving it better thermomechanical properties. As a result, knife-edge flanges can be directly machined at both ends of the absorber body. This integrated absorber flange structure can be directly connected to the upstream and downstream equipment of the beam line through the knife-edge flanges at both ends of the absorber, which greatly shortens the space in the optical axis direction, and the overall structure is simple and compact.

[0017] The height and width of the absorber body are determined by the diameter of the upstream and downstream connected devices, and the thickness of the absorber body is determined by experimental evaluation of the synchrotron radiation beamline modulation requirements. The upstream and downstream end faces of the absorber body are each machined into sealing flanges with knife-edges. The knife-edge flange on the upstream end face is located at the center of the absorber body and connects to the upstream device; the knife-edge flange on the downstream end face is located off-center from the absorber body and connects to the downstream device.

[0018] A square straight hole is machined at an off-center position on the absorber body as a light-transmitting hole. One end of the light-transmitting hole is located at the off-center position of the upstream end face blade flange, and the other end is located at the center position of the downstream end face blade flange. The off-center position of the absorber body is determined by the distance between the center of the pipe connecting the downstream equipment and the center of the beam, and the orientation of the center of the pipe connecting the downstream equipment relative to the center of the beam. The size of the light-transmitting hole is determined by the required beam size of the synchrotron radiation at the installation position of the absorber body.

[0019] The integral machining of the absorber body and the blade flange greatly reduces weld seams and more effectively reduces the risk of vacuum leakage.

[0020] The absorber body has a water-cooling channel on its upper and lower parts, each channel being a circular channel with an inner diameter of 4mm to 10mm. Pipe fittings are installed at both ends of each water-cooling channel. The two water-cooling channels can be connected in series via U-shaped pipes or flexible hoses, and then inlet and outlet pipes can be installed to form a single cooling water circuit.

[0021] The advantages of this utility model are as follows:

[0022] First, the absorber body is made of chromium-zirconium-copper material, which has higher strength, allowing it to withstand higher heat loads without easily deforming; it also has higher hardness, giving it better thermomechanical properties, thus allowing the absorber and flange to be machined as a single unit, resulting in a simple and compact structure. Furthermore, the absorber body has a water-cooling channel at both the upper and lower parts, enabling the beam splitter to withstand higher heat loads, thereby better meeting the requirements of high-energy light source beams.

[0023] Secondly, the integrated structure of the absorber flange can be directly connected to the upstream and downstream equipment of the beam line through the knife-edge flanges on both ends of the absorber, which greatly shortens the space in the optical axis direction.

[0024] Third, the integrated machining of the absorber body and the blade flange greatly reduces welds inside the vacuum chamber, thus more effectively reducing the risk of vacuum leakage. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a specific embodiment of the present invention.

[0026] Figure 2 This is a front view of the downstream end face of the absorber body in a specific embodiment of the present invention.

[0027] Figure 3 This is a front view of the upstream end face of the absorber body in a specific embodiment of this utility model.

[0028] Wherein: 1-Absorber body; 11-Knife-edge flange; 111-Downstream end face knife-edge flange; 112-Upstream end face knife-edge flange; 12-Light-through hole; 13-Water-cooling channel; 2-Cooling water pipe; 21-Inlet pipe; 22-Outlet pipe; 23-U-shaped pipe; 3-Pipe fitting. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate that the device or element referred to must have a specific orientation. Therefore, they should not be construed as limiting this utility model.

[0031] like Figure 1 The integrated beam splitter device shown is an embodiment of the present invention, which mainly includes an absorber body 1, a cooling water pipe 2, and a pipe connector 3.

[0032] like Figure 2 The image shown is a front view of the downstream end face of the absorber body 1. Figure 3 The image shown is a front view of the upstream end face of the absorber body 1.

[0033] The absorber body 1 is made of chromium zirconium copper material, which has higher strength, enabling it to withstand higher heat loads without easily deforming; it also has higher hardness, giving it better thermomechanical properties. As a result, knife-edge flanges 11 can be directly machined at both ends of the absorber body 1. This integrated absorber flange structure can be directly connected to the upstream and downstream equipment of the beam line through the knife-edge flanges 11 at both ends of the absorber, which greatly shortens the space in the optical axis direction, and the overall structure is simple and compact.

[0034] The height and width of the absorber body 1 are determined by the aperture size of the upstream and downstream connected devices, and the thickness of the absorber body 1 is determined by experimental evaluation of the modulation requirements of the synchrotron radiation beamline. The upstream and downstream end faces of the absorber body 1 are each machined into sealing flanges with knife edges, wherein the upstream end face knife-edge flange 112 is located at the center of the absorber body 1 and connects to the upstream device; the downstream end face knife-edge flange 111 is located at an off-center position of the absorber body 1 and connects to the downstream device.

[0035] A square straight hole, designated as a light-transmitting hole 12, is machined at an off-center position on the absorber body 1. One end of the light-transmitting hole 12 is located at the off-center position of the upstream end face blade flange 112, and the other end is located at the center position of the downstream end face blade flange 111. The off-center position of the absorber body 1 is determined by the distance between the center of the downstream equipment pipeline and the center of the light beam, as well as the orientation of the center of the downstream equipment pipeline. The size of the light-transmitting hole 12 is determined by the size of the synchrotron radiation spot at the installation position of the absorber body 1.

[0036] The integral processing of the absorber body 1 and the blade flange 11 can greatly reduce welds and more effectively reduce the risk of vacuum leakage.

[0037] The absorber body 1 is provided with a water-cooling channel 13 on the upper and lower sides. The water-cooling channel 13 is a circular channel with an inner diameter of 9.5 mm.

[0038] Pipe joints 3 are installed at both ends of the water-cooling channel 13.

[0039] The two water-cooling channels 13 can be connected in series by U-shaped pipes 23, and then inlet pipe 21 and outlet pipe 22 can be installed to form a cooling water circuit.

[0040] Although specific embodiments of the present invention have been disclosed for illustrative purposes to aid in understanding and implementing the invention, those skilled in the art will understand that various substitutions, variations, and modifications are possible without departing from the spirit and scope of the invention and the appended claims. Therefore, the invention should not be limited to the content disclosed in the preferred embodiments, and the scope of protection claimed by the invention is defined by the claims.

Claims

1. An integrated beam-splitting aperture device for synchrotron radiation, characterized in that, The application relates to a cooling device for a synchrotron radiation beamline, which comprises an absorber body (1) and a cooling water pipe (2). The upstream end face and the downstream end face of the absorber body (1) are respectively provided with a knife-edge flange (11), forming an absorber flange integrated structure; the knife-edge flange (11) at the upstream end face of the absorber body (1) is referred to as an upstream end face knife-edge flange (112), which is located at the central position of the absorber body (1) and is used for connecting an upstream device; the knife-edge flange (11) at the downstream end face of the absorber body (1) is referred to as a downstream end face knife-edge flange (111), which is located at the eccentric position of the absorber body (1) and is used for connecting a downstream device; a light transmission hole (12) is formed at the eccentric position of the absorber body (1), one end of the light transmission hole (12) is located at the eccentric position of the upstream end face knife-edge flange (112), and the other end is located at the central position of the downstream end face knife-edge flange (111); Two water cooling channels (13) are arranged in the absorber body (1), the two ends of the water cooling channels (13) on the same side are connected through a connecting pipe, the communication of the two water cooling channels (13) is realized, and the ports on the other side of the two water cooling channels (13) are connected with the water inlet pipe (21) and the water outlet pipe (22) of the cooling water pipe (2), so as to form a cooling water loop.

2. The integrated beam-splitter aperture device for use in synchrotron radiation according to claim 1, wherein, The downstream end face knife-edge flange (111) is connected with a downstream device through a downstream pipeline; the eccentric position of the absorber body (1) is determined by the distance between the center of the downstream pipeline and the center of the light beam and the position of the center of the downstream pipeline; the size of the light transmission hole (12) is determined by the spot size of the synchrotron radiation light at the installation position of the absorber body (1).

3. The integrated beam-splitter aperture device for use in synchrotron radiation according to claim 1, wherein, The height and width of the absorber body (1) are determined by the aperture size of the upstream device and the downstream device.

4. The integrated beam-splitter optical chopper device for synchrotron radiation according to claim 1 or 2 or 3, wherein, The material of the absorber body (1) is chromium-zirconium-copper.

5. The integrated beam-splitter optical chopper device for synchrotron radiation according to claim 1 or 2 or 3, wherein, Two pipe joints (3) are respectively arranged at the two ends of each water cooling channel (13); the two pipe joints (3) on the same side are connected through a U-shaped pipe (23), so as to realize the communication of the two water cooling channels (13).

6. The integrated beam-splitter chopper device for synchrotron radiation according to claim 1 or 2 or 3, wherein, The light transmission hole (12) is a square straight hole.

7. The integrated beam-splitter chopper device for synchrotron radiation according to claim 1 or 2 or 3, wherein, The water cooling channel (13) is a circular channel with an inner diameter of 9.5 mm.

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