Translation type photon optical shutter device capable of being combined with multiple inserts

Abstract

The invention discloses a translational photon optical shutter device capable of being combined with multiple inserts, and the device is characterized in that the device comprises an optical shutter switching assembly, a vacuum chamber, a driving mechanism, and a hinge assembly; the optical shutter switching assembly and the hinge assembly are installed in the vacuum chamber, and the driving mechanism is located outside the vacuum chamber. The driving mechanism drives the optical shutter switching assembly to do reciprocating translation through the hinge assembly and is used for switching control over light passing and light blocking of synchrotron radiation light. An absorber is arranged in the optical shutter switching assembly, the top of the absorber is a light receiving face, and the light receiving face comprises a plurality of inclined faces which are obliquely upward in the incidence direction of synchrotron radiation light and used for blocking the synchrotron radiation light generated by various insertion pieces at the same time. The design of the multi-inclined-plane absorber can block synchrotron radiation light generated by various inserts at the same time, so that the valuable axial space occupied by the device in a light beam line is effectively shortened, and a solid technical basis is provided for the design and layout optimization of the light beam line combined by multiple inserts.

Description

Technical Field

[0001] The invention belongs to the technical field of synchrotron radiation beam lines and relates to a translational photon shutter device capable of being used in conjunction with multiple inserts. Background Art

[0002] With the continuous development of synchrotron radiation light source technology, a large number of insert technologies are being used, which has led to the continuous improvement of the types and performance of inserts. At present, more and more beamline stations are using multiple inserts in combination. The advantages of using multiple inserts in combination are obvious. By using multiple inserts in combination, a variety of different experimental conditions and spectral characteristics can be obtained in the same beamline, thereby maximizing the utilization efficiency of the light source; this method can promote interdisciplinary research, allow multidisciplinary discussions such as physics, chemistry, and biology in the same experiment, and promote the combination of basic research and applied research; by optimizing the beam path and using different analytical instruments, the experimental time can be shortened, the efficiency of sample use can be improved, and sample loss can be reduced; with the help of multiple inserts in combination, data can be collected under different conditions, providing a more comprehensive basis for data analysis.

[0003] As mentioned above, the use of multiple inserts does bring many benefits, but it also brings new challenges. In particular, some beamlines, based on scientific goals and specific sample properties, determine that the multiple inserts used in combination include both undulators and wigglers. There are even some beamlines that need to perform imaging experiments and require the use of synchrotron radiation with large angles and polarization. It can be seen that the use of multiple inserts makes the design of inserts more complex, the compatibility between inserts is poor, and the beam control is difficult. In addition, the significant increase in thermal re-nucleation also brings huge challenges to the heat dissipation of the equipment.

[0004] The photon shutter is a key component of the beamline in the synchrotron radiation facility. The photon shutter realizes the switching control of the synchrotron radiation light through the motion control of opening and closing. The switching action determines whether the synchrotron radiation light can pass and be led out to the experimental station. The opening and closing of the photon shutter is also an important feedback signal for the safety interlock. When the beamline station is running with a beam, the closing signal of the photon shutter is an important criterion for whether the synchrotron radiation experimenters can enter the beamline shed and the experimental station. When the photon shutter blocks the light, how to effectively deal with this heat load becomes an important challenge. Using grazing incidence to reduce the power density and increase the light blocking area of ​​the absorber to effectively improve the cooling effect of the shutter absorber is also an important means to deal with high heat loads in synchrotron radiation facilities.

[0005] In the prior art, the grazing incidence method commonly used by white light shutters is to realize the switching control of the light passing and light blocking of synchrotron radiation light through a swinging photon shutter. Specifically, the photon shutter absorber is provided with a rectangular through hole as a light passing hole, and the rotating shaft is set at the upstream starting position of the shutter absorber as the rotation center. By setting a cylinder driving structure near the downstream end of the shutter, the cylinder drives the downstream part of the absorber to move downward a small distance, so that the absorber swings at a small angle to form a grazing incident light blocking slope, thereby realizing the light blocking function of the photon shutter. This structure can better withstand the high heat load generated by the insert beam line. In order to reduce the thermal power density, a relatively small grazing incidence angle is usually used, and as the spot size increases, the length of the absorber also increases. When blocking light, the photon shutter needs to maintain continuous light reception, and the light receiving surface must avoid disconnection and welds, so the absorber is usually processed in one piece using a wire cutting process. However, when the length of the absorber is too long, it will be limited by the wire cutting processing capacity. Patent CN202210861188.3 proposes a translational photon shutter, which welds two absorption bodies with rectangular light-through holes and wedge-shaped light-blocking surfaces together to form a composite photon shutter absorber assembly including a horizontally arranged straight light-through hole and a double wedge-shaped light-blocking position. A posture adjustment system is provided below the photon shutter absorber assembly, which can drive the photon shutter to perform reciprocating translation between the light-through hole and the double wedge-shaped light-blocking position, thereby realizing the switching control of the light-through and light-blocking of the synchrotron radiation light.

[0006] However, the two types of photon shutter absorbers mentioned above are vacuum boxes in themselves. The switching control is achieved by swinging or translating the shutter absorber as a whole, and the switching stroke increases with the increase of the spot. If the beam line requires an ultra-large spot, a metal material with an ultra-large cross-sectional size is required to manufacture the shutter absorber. The shutter absorber usually uses expensive reinforced copper alloy as raw material, and the material cost and processing cost will increase significantly. In addition, synchrotron radiation light usually needs to be transported under ultra-high vacuum, and the upstream and downstream of the light absorber need to be sealed and connected with flexible bellows. When the shutter absorber swings or switches in translation, the flexible bellows is laterally offset accordingly. It is necessary to ensure that the diameter of the flexible bellows is greater than 2 times the maximum spot to avoid the synchrotron radiation light hitting the bellows when the copper tube switches with the light blocking. At the same time, the flexible bellows needs to be of sufficient length to ensure that it can achieve sufficient lateral offset. The cost of large cross-sectional sizes and ultra-long bellows is also relatively expensive. Summary of the invention

[0007] In view of the problems existing in the prior art, the purpose of the present invention is to provide a translational photon shutter device that can be used with multiple inserts. The present invention is applied to the beam line of a synchrotron radiation device and is used in a high vacuum environment. The present invention realizes the reciprocating translation of the shutter switching component under the drive of a driving mechanism, thereby effectively controlling the switching of the light passing and light blocking of the synchrotron radiation light. The multi-bevel absorber design of the present invention can simultaneously block the synchrotron radiation light generated by multiple inserts, thereby effectively shortening the valuable axial space occupied by the device in the beam line. Since the shutter absorber is placed in a vacuum chamber, its bevel is arranged on the outer side of the absorber. Compared with the vacuum box that needs to be processed into a circumferentially closed vacuum box, this design greatly reduces the cross-sectional size of the metal material, thereby reducing the cost of the shutter absorber and significantly simplifying the processing difficulty. In addition, the shutter switching component is arranged in the vacuum chamber. Under the action of the driving mechanism, the shutter switching component can be switched back and forth, while the vacuum chamber remains stationary, so that the flexible bellows connected to the upstream and downstream of the vacuum chamber does not need to increase the cross section or extend the length, which not only reduces the cost, but also further effectively saves the valuable axial space of the beam line. The present invention will provide a solid technical foundation for the design and layout optimization of beam lines using multiple inserts.

[0008] To achieve the above object, the technical solution adopted by the present invention is:

[0009] A translational photon shutter device capable of being used with multiple inserts comprises a shutter switching component, a hinge component, a vacuum chamber and a driving mechanism.

[0010] Furthermore, the shutter switch assembly and the hinge assembly are installed inside the vacuum chamber, and the drive mechanism is located outside the vacuum chamber. The drive mechanism is effectively connected to and motion-fed with the shutter switch assembly through the hinge assembly.

[0011] The optical shutter switching component is mainly composed of an optical shutter absorber component, a clamping mechanism and a guide bracket, which are arranged from top to bottom in sequence.

[0012] Furthermore, the optical shutter absorber assembly is welded together by an absorber with multiple slopes, a cooling water pipe and a blind knife-edge flange.

[0013] Furthermore, the absorber is characterized in that the material used for the absorber is oxygen-free copper, chromium-zirconium copper or dispersed copper with good thermal conductivity and vacuum performance.

[0014] Furthermore, the top of the absorber is a light-receiving surface, characterized in that the light-receiving surface of the absorber is a plurality of inclined surfaces inclined upwardly arranged along the incident direction of the synchrotron radiation light, and the plurality of inclined surfaces are sequentially connected to form a segmented design of the light-receiving surface.

[0015] Furthermore, among the multiple inclined surfaces constituting the light-receiving surface, a first inclined surface is processed along the central area of ​​the optical axis; a second inclined surface is processed upwardly from the top of the first inclined surface, and a third inclined surface is processed upwardly from the bottom of the first inclined surface; a fourth inclined surface is processed upwardly from the top of the second inclined surface, and a fifth inclined surface is processed upwardly from the bottom of the third inclined surface; according to this rule, starting from the second inclined surface and the third inclined surface, more pairs of inclined surfaces can be processed at positions equal to the center of the optical axis.

[0016] Furthermore, the first inclined plane is symmetrical about the center of the optical axis, and the second inclined plane and the third inclined plane are symmetrically arranged about the center of the optical axis. According to this rule, starting from the second inclined plane and the third inclined plane, more pairs of inclined planes processed at positions with equal distances from the center of the optical axis are symmetrically arranged about the center of the optical axis.

[0017] Furthermore, the bevel angle of the first bevel is smaller than that of the second bevel and the third bevel, the bevel angles of the second bevel and the third bevel are equal and smaller than that of the fourth bevel and the fifth bevel, and the bevel angles of the fourth bevel and the fifth bevel are equal; and so on, starting from the second bevel and the third bevel, the bevel angles of more pairs of bevels processed at equal distances from the center of the optical axis are equal, and the bevel angles are larger as they are farther away from the center of the optical axis. The bevel angle refers to the angle between the bevel and the optical axis, that is, the grazing incidence angle.

[0018] Furthermore, the bevel length of the first bevel is greater than that of the second bevel and the third bevel, the bevel lengths of the second bevel and the third bevel are equal and greater than the bevel lengths of the fourth bevel and the fifth bevel, and the bevel lengths of the fourth bevel and the fifth bevel are equal; and so on, starting from the second bevel and the third bevel, the bevel lengths of more pairs of bevels processed at positions equal to the center of the optical axis are equal, and the farther away from the center of the optical axis, the smaller the bevel length.

[0019] Furthermore, the angle of the bevel is determined by the power density distribution of the light sources of each insert, and the length of the bevel is determined by the spot size of the light sources of each insert at the light blocking position of the light receiving surface.

[0020] Furthermore, the middle part of the light-receiving surface of the absorber, i.e., the first inclined plane, adopts a small-angle light-receiving plane to receive light spots with higher power density, and starting from the second inclined plane and the third inclined plane, the paired inclined planes farther away from the center of the optical axis adopt successively increasing light-receiving angles to receive light spots in areas with reduced power density; that is, the inclined plane with a small grazing incident angle close to the center area of ​​the optical axis is used to block the synchrotron radiation light generated by inserts with high power density and small spot size or the synchrotron radiation light in the central area generated by inserts with large spot size, and the inclined plane with a large grazing incident angle relatively far from the center area of ​​the optical axis is used to block the synchrotron radiation light in the peripheral area generated by inserts with large spot size.

[0021] Furthermore, inside the absorber, a plurality of circular holes intersecting each other are provided near the light receiving surface. After all the circular holes are connected in series, cooling water pipes are welded at the head and tail in sequence, and sealing plugs are welded at the ends of the remaining circular holes on the surface of the absorber, thereby forming a series of cooling water channels.

[0022] Furthermore, to facilitate the design of the absorber and the processing of the water cooling channel, the widths of the multiple inclined surfaces constituting the light receiving surface are set to be equal, and their values ​​are determined by the maximum spot width of each insert light source at the light blocking position of the light receiving surface.

[0023] Furthermore, the cooling water pipe is bent and then passed through a blind knife-edge flange in parallel, and the blind knife-edge flange is fixedly connected to the cooling water pipe by welding.

[0024] Furthermore, a clamping mechanism for clamping the absorber is installed below the optical shutter absorber assembly, and the mechanism is mainly composed of a support plate, a translation adjustment assembly, a heat insulation plate and a fastening screw. A boss is provided at each end of the support plate, and this structure with raised ends and sunken in the middle is intended to reduce heat transfer between the absorber and the optical shutter absorber.

[0025] Furthermore, the boss at one end of the support plate is provided with a plurality of vertically upward fastening screws, and a translation adjustment component is disposed on each side of the boss at the other end of the support plate, and the translation adjustment component is mainly composed of an adjustment seat and a ball head top screw.

[0026] Furthermore, the bottom of one end of the absorber is mounted on the boss at one end of the support plate, and a stable connection is achieved through the fastening screws, while the other end of the absorber is placed on the boss at the other end of the support plate, and the other end of the absorber is laterally constrained by the ball head screws of the translation adjustment components on both sides. Heat insulation boards are installed between the bosses at both ends of the support plate and the absorber, and the upper and lower surfaces of the heat insulation boards are provided with comb-like stripe structures to further reduce heat transfer between the absorber and the support plate.

[0027] Furthermore, the guide bracket arranged below the clamping mechanism mainly comprises a table, height-adjustable legs, vacuum linear slider guide rails, copper braids and slider adapter plates. A plurality of height-adjustable legs are evenly arranged below the table to achieve height adjustment and leveling of the table. The height-adjustable legs are mainly composed of a flange base and a double-headed adjustment screw, wherein a plurality of screw mounting holes are evenly arranged around the lower part of the flange base, and a central screw hole is arranged on the upper part. The height adjustment of the height-adjustable legs is achieved by screwing the lower part of the double-headed adjustment screw into the depth of the central screw hole of the flange base. Two pairs of vacuum linear slider guide rails are installed above the table, and the linear slider guide rails each include a vacuum linear guide rail and a vacuum guide rail slider. The linear guide rails are arranged in parallel and transversely below the bosses at both ends of the support plate, and the guide rail sliders are respectively connected to the support plate through the slider adapter plates, and copper braids are respectively provided between the two guide rail sliders and the slider adapter plates, and the other ends of the copper braids are respectively connected to the cooling water pipes.

[0028] Furthermore, the optical shutter switching assembly is mounted on the bottom plate of the vacuum chamber through the flange base of the height-adjustable legs. The vacuum chamber is mainly composed of a vacuum chamber body with an open top and a top cover. The vacuum chamber body is a box-shaped structure, and a square flange matching the top cover is provided on the top. The vacuum chamber body and the top cover are vacuum-sealed by silver wire or aluminum wire, and a plurality of hanging rings are evenly arranged on the top surface of the top cover around its center of gravity. Pipes for transmitting synchrotron radiation light are provided at both longitudinal ends of the vacuum chamber body, and branches are provided on one lateral side to provide a sealed connection for the drive mechanism, and a branch for installing an ion pump is provided at the center of the bottom of the vacuum chamber body. The vacuum chamber body is also provided with a plurality of branches for connecting vacuum detection and vacuum acquisition related equipment. The outer ends of all the branches are provided with knife-edge flanges, and legs are arranged around the bottom of the vacuum chamber body.

[0029] Furthermore, the driving mechanism mainly includes a wedge-shaped base, a cylinder, a floating joint, a joint adapter plate, a common linear slider guide rail, a driving rod, a clamping block, a bellows, a limit switch, a switch collision block and a solenoid valve. The wedge-shaped base is installed on one side of the vacuum chamber body, specifically beside the branch pipe used for sealing the driving mechanism. The cylinder is installed at the end of the wedge-shaped base and connected to the joint adapter plate through a floating joint. Two pairs of common linear slider guide rails are arranged in parallel on both sides of the joint adapter plate. The common linear slider guide rail mainly includes an ordinary linear guide rail and an ordinary guide rail slider.

[0030] Furthermore, the sliders of the two pairs of common linear slider guide rails are respectively fixedly connected to the joint adapter plate, and the two common linear guide rails are fixedly connected to the wedge-shaped base in parallel.

[0031] Furthermore, the driving rod is a round rod structure with a straight through hole in the center, a loose-fitting knife-edge flange at one end, and an annular groove at the other end, and an inner-welded knife-edge flange is welded beside the groove.

[0032] Furthermore, the top of the joint adapter plate is inserted into the groove of the driving rod, and a "X"-shaped clamping block is installed on the top of the joint adapter plate, and the clamping block is also inserted into the groove of the driving rod.

[0033] Furthermore, the inner welded knife-edge flange of the driving rod is sealedly connected to one end of the bellows, and the end of the driving rod provided with the loose sleeve knife-edge flange passes through the bellows.

[0034] Furthermore, the other end of the bellows is sealed and connected to the branch pipe for sealing the driving mechanism. At the same time, the blind knife-edge flange of the light shutter absorber assembly is sealed and connected to the loose sleeve knife-edge flange at one end of the driving rod, and the cooling water pipe of the light shutter absorber assembly passes through the central straight hole of the driving rod, thereby guiding the cooling water pipe to the outside of the vacuum chamber.

[0035] Furthermore, the hinge assembly mainly comprises a crossbar seat, a crossbar, a crossbar block, a vertical bar, a vertical bar seat and a vertical bar seat adapter plate. Two crossbars are installed in parallel in the groove of the crossbar seat, and a gap is left between the two crossbars. The crossbar is limited by the crossbar block to prevent it from moving out of the groove of the crossbar seat. The vertical bar crosses through the gap between the two crossbars and is installed on the vertical bar seat. There is no fixed connection between the crossbar and the vertical bar, and the two can slightly stagger and rotate.

[0036] Furthermore, the cross rod seat of the hinge assembly is fixedly connected to the side of the middle area of ​​the support plate of the clamping mechanism, thereby realizing effective connection between the hinge assembly and the clamping mechanism and the light gate absorber thereon; the vertical rod seat of the hinge assembly is fixedly connected to the blind knife-edge flange of the light gate absorber assembly through the vertical rod seat adapter plate, ensuring effective connection between the hinge assembly and the driving mechanism.

[0037] Furthermore, the driving mechanism drives the hinge assembly, so that the clamping mechanism connected thereto and the light shutter absorber thereon move back and forth along the vacuum linear slider guide rail above the table of the guide bracket. This process realizes the effective control of the light shutter absorber between light transmission and light blocking.

[0038] The advantages of the present invention are as follows:

[0039] First, the multi-slope absorber design can simultaneously block the synchrotron radiation light generated by multiple inserts, effectively shortening the valuable axial space occupied by the device in the beamline.

[0040] Second, the light shutter absorber is placed in a vacuum chamber, and its inclined surface is set on the outer side of the absorber. Compared with the need to be processed into a circumferentially closed vacuum box, this design greatly reduces the cross-sectional size of the metal material, thereby reducing the cost of the light shutter absorber, and also significantly simplifies the processing difficulty.

[0041] Third, the light shutter switching assembly and the driving mechanism are both equipped with a double linear guide rail with good rigidity, which can realize precise switching control between light-passing and light-blocking states.

[0042] Fourth, a water cooling pipe is set inside the light gate absorber to prevent excessive thermal deformation caused by high temperature of the absorber when blocking light. At the same time, the connection between the light gate absorber assembly and the guide bracket is added with a heat insulation board and copper braid design, which effectively reduces the heat conduction to the clamping mechanism and the vacuum linear slider guide after the absorber blocks light, better ensuring the stability of the clamping mechanism and the influence of the temperature rise of the light gate absorber on the vacuum linear slider guide.

[0043] Fifth, the effective connection and motion feed-in of the driving mechanism and the light gate switching assembly are realized through the hinge assembly, wherein the hinge assembly mainly includes a crossbar seat, a crossbar, a crossbar block, a vertical bar, a vertical bar seat and a vertical bar seat adapter plate. There is no fixed connection between the crossbar and the vertical bar, and the two can move and rotate slightly in an interlaced manner, which not only realizes the effective connection, but also reduces the difficulty of assembly, and can compensate for the deformation of the light gate absorber caused by light blocking and heat, so as to better keep the translational reciprocating motion smooth at all times.

[0044] Sixth, the optical shutter switching assembly is arranged in the vacuum chamber. Under the action of the driving mechanism, the optical shutter switching assembly can switch back and forth while the vacuum chamber remains stationary, so that the flexible bellows connected to the upstream and downstream of the vacuum chamber do not need to increase the cross-section or extend the length. This not only reduces the cost, but also further effectively saves the valuable axial space of the beam line. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention.

[0046] Figure 2 It is a structural schematic diagram of a light shutter switching component in a specific embodiment of the present invention.

[0047] Figure 3 for Figure 2 Schematic diagram of the structure of the absorber component of the medium light shutter.

[0048] Figure 4 for Figure 3 Schematic diagram of the cooling water channel layout of the medium light gate absorber.

[0049] Figure 5 for Figure 2 Schematic diagram of the structure of the middle clamping mechanism.

[0050] Figure 6 for Figure 2 Schematic diagram of the structure of the middle guide bracket.

[0051] Figure 7 It is a schematic structural diagram of a vacuum chamber in a specific embodiment of the present invention.

[0052] Figure 8 It is a structural schematic diagram of a driving mechanism in a specific embodiment of the present invention.

[0053] Fig. 9 for Figure 8 Schematic diagram of the structure of the middle guide shaft.

[0054] Fig.10 The figure is a schematic diagram of the structure of a hinge assembly according to an embodiment of the present invention.

[0055] Fig.11 This is the light-transmitting state of an embodiment of the present invention.

[0056] Fig.12 This is a light blocking state of an embodiment of the present invention.

[0057] Among them: 1-light shutter switching assembly, 2-vacuum chamber, 3-driving mechanism, 4-hinge assembly, 11-light shutter absorber assembly, 12-clamping mechanism, 13-guide bracket, 111-absorber, 112-cooling pipe, 113-blind blade flange, 111a-first inclined plane, 111b-second inclined plane, 111c-third inclined plane, 111d-sealing plug, 111e-circular channel, 121-support plate, 122-translational adjustment assembly, 123-insulation board, 124, fastening screw 124, 122a-adjustment seat, 122b-ball head top screw, 131-table, 132-height adjustable legs 132, 133-vacuum linear slider guide, 134-copper braid, 135-slider adapter plate, 211-for transmission Pipe for transporting synchrotron radiation light, 212-branch pipe for sealing the driving mechanism 3, 213-branch pipe for installing the ion pump, 214-remaining branch pipes for installing vacuum detection and vacuum acquisition related equipment, 215-leg, 301-wedge base, 302-cylinder, 303-floating joint, 304-joint adapter plate, 305-ordinary linear slider guide, 306-driving rod, 307-clamping block, 308-bellows, 309-limit switch, 310-switch impact block, 311-solenoid valve, 306a-loose-type knife-edge flange, 306b-annular groove, 306c-inner-welded knife-edge flange, 41-cross bar seat, 42-cross bar, 43-cross bar stopper, 44-vertical bar, 45-vertical bar seat, 46-vertical bar seat adapter plate. DETAILED DESCRIPTION

[0058] The present invention is further described in detail below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention but not to limit the scope of the present invention.

[0059] In the description of the present invention, it should be understood that the terms "upper", "lower", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The term "fixed connection" means connecting two workpieces together in some way to form a connection that is non-detachable or difficult to disassemble, and the specific connection method may include but is not limited to welding, bolt or screw connection and riveting. In addition, the features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the present invention, unless otherwise specified, "multiple" means two or more.

[0060] The specific implementation of the translational photon shutter device capable of being used with multiple inserts mentioned in the present invention is as follows: Figure 1 As shown, the device is mainly composed of a main light shutter switching component 1, a vacuum chamber 2, a driving mechanism 3 and a hinge component 4.

[0061] The shutter switching assembly 1 and the hinge assembly 4 are installed in the vacuum chamber 2, while the driving mechanism 3 is located outside the vacuum chamber 2. The hinge assembly 2 is used to realize effective connection and motion feed-in with the shutter switching assembly.

[0062] like Figure 2 As shown, the optical shutter switching assembly 1 is mainly composed of an optical shutter absorber assembly 11, a clamping mechanism 12 and a guide bracket 13, which are arranged from top to bottom in sequence.

[0063] like Figure 3 As shown, the shutter absorber assembly 11 is welded together by an absorber 111 with three inclined surfaces, a cooling water pipe 112 and a blind blade flange 113. The absorber 111 is made of dispersed copper with good thermal conductivity and vacuum performance.

[0064] The top of the absorber 111 is a light receiving surface, and the light receiving surface is provided with three inclined surfaces along the incident direction of the synchrotron radiation, namely the first inclined surface 111a, the second inclined surface 111b and the third inclined surface 111c, and the three inclined surfaces are connected in sequence to form a segmented design of the light receiving surface. The first inclined surface 111a along the central area of ​​the optical axis is symmetrically arranged about the center of the optical axis, and the second inclined surface 111b and the third inclined surface 111c are symmetrically arranged about the center of the optical axis. The inclined surface angle of 111a is smaller than that of 111b and 111c, and the inclined surface angles of 111b and 111c are equal. Among them, 111a with a smaller inclined surface angle is used to block a small synchrotron radiation spot with a higher power density or the central area of ​​a large synchrotron radiation spot with a high central power density, while 111b and 111c with larger inclined surface angles are used to block areas with slightly lower power density outside the central area of ​​a large synchrotron radiation spot with a high power density.

[0065] like Figure 4 As shown, inside the absorber 111, a plurality of circular channels 111e are arranged near the light receiving surface, and after all the circular channels 111e are connected in series, the cooling water pipes 112 are welded to the ends in sequence, and the ends of the remaining circular channels 111e on the surface of the absorber 111 are welded with sealing plugs 111d, thereby forming a series of cooling water channels. The cooling water pipes 112 are bent and passed through a blind knife-edge flange 113 in parallel, and the blind knife-edge flange 113 is fixedly connected to the cooling water pipe 112 by welding.

[0066] like Figure 2 and Figure 5 As described above, a clamping mechanism 12 for clamping the absorber 111 is installed below the shutter absorber assembly 11, and is mainly composed of a support plate 121, a translation adjustment assembly 122, a heat insulation plate 123, and a fastening screw 124. Bosses are respectively provided at both ends of the support plate 121, and the function of the structure with protrusions at both ends and a sinking in the middle is to reduce heat transfer between the absorber and the absorber.

[0067] The boss at one end of the support plate 121 is provided with a plurality of vertically upward fastening screws 124, and the boss at the other end of the support plate 121 is provided with a translation adjustment assembly 122 on both sides, and the translation adjustment assembly 122 is mainly composed of an adjustment seat 122a and a ball head screw 122b. The bottom of one end of the absorber 111 is installed on the boss at one end of the support plate 121, and a stable connection is achieved through the fastening screws 124, while the other end of the absorber 111 is placed on the boss at the other end of the support plate 121, and the ball head screws 122b of the translation adjustment assembly 122 on both sides are used to laterally constrain the other end of the absorber 111. A heat insulation board 123 is installed between the bosses at both ends of the support plate 121 and the absorber 111, and the upper and lower surfaces of the heat insulation board 123 are provided with a comb-shaped stripe structure to further reduce the heat transfer between the absorber 111 and the support plate 121.

[0068] like Figure 2 and Figure 6 As shown, the guide bracket 13 arranged below the clamping mechanism 12 mainly includes a table 131, height-adjustable legs 132, a vacuum linear slider guide rail 133, a copper braid 134 and a slider adapter plate 135. Four height-adjustable legs 132 are evenly arranged below the table 131 for adjusting and leveling the height of the table 131. The height-adjustable legs 132 are mainly composed of a flange base and a double-headed adjustment screw. The lower part of the flange base is evenly distributed with multiple screw mounting holes and the upper part is provided with a central screw hole. The height adjustment of the height-adjustable legs 132 is achieved by the depth of the lower thread of the double-headed adjustment screw screwed into the central screw hole of the flange base; at the same time, the upper screw of the double-headed adjustment screw is firmly connected to the table 131 through a nut, a gasket and the upper screw.

[0069] Two pairs of vacuum linear slider guide rails 133 are installed above the table 131, each of which includes a vacuum linear guide rail and a vacuum guide rail slider. The two vacuum linear guide rails are arranged in parallel and transversely below the bosses at both ends of the support plate 121, and the vacuum guide rail sliders are respectively connected to the support plate 121 through the slider adapter plate 135, and copper braids 134 are respectively provided between the two vacuum guide rail sliders and the slider adapter plate 135, and the other ends of the copper braids 134 are respectively connected to the cooling water pipe 112.

[0070] like Figure 1 As shown, the shutter switching assembly 1 is mounted on the bottom plate of the vacuum chamber 2 through the flange base of the height-adjustable legs 132. Figure 7 As shown, the vacuum chamber 2 is mainly composed of a vacuum chamber body 21 with an open top and a top cover 22. The vacuum chamber body 21 is a box-shaped structure, and a square flange matching the top cover 22 is provided on its top. The vacuum chamber body 21 and the top cover 22 are vacuum-sealed by silver wire or aluminum wire. Four lifting rings are evenly arranged around the center of gravity of the top cover 22 on the top surface for overall lifting. The vacuum chamber body 21 is provided with pipes 211 for transporting synchrotron radiation light at both ends in the longitudinal direction (i.e. along the incident direction of synchrotron radiation light), and a branch pipe 212 for sealing the driving mechanism 3 is provided on one side in the transverse direction (i.e. horizontally perpendicular to the incident direction of synchrotron radiation light), and a branch pipe 213 for installing an ion pump is provided at the bottom center of the vacuum chamber body 21. The vacuum chamber body is also provided with a plurality of branch pipes 214 for installing vacuum detection and vacuum acquisition related equipment. The outer ends of the branch pipes 211, 212, 213 and 214 are provided with knife-edge flanges, and legs 215 are provided around the bottom of the vacuum chamber body 21.

[0071] like Figure 1 and Figure 8As shown, the driving mechanism 3 mainly includes a wedge-shaped base 301, a cylinder 302, a floating joint 303, a joint adapter plate 304, a common linear slider guide rail 305, a driving rod 306, a clamping block 307, a bellows 308, a limit switch 309, a switch collision block 310 and a solenoid valve 311. The wedge-shaped base 301 is installed on one side of the vacuum chamber body 21, specifically next to the branch pipe 212 used for sealing the driving mechanism 3. The cylinder 302 is installed at the end of the wedge-shaped base 301 and is connected to the joint adapter plate 304 through the floating joint 303. Two pairs of common linear slider guide rails 305 are arranged in parallel on both sides of the joint adapter plate 304. The common linear slider guide rail 305 mainly includes a common linear guide rail and a common guide rail slider. The two guide rail sliders are respectively fixed to the joint adapter plate 304, and the two common linear guide rails are fixed to the wedge-shaped base 301 in parallel. The switch collision block 310 is installed on one side of the joint adapter plate 304 and moves horizontally with the slider of the ordinary linear slider guide rail 305. The solenoid valve 311 is used to switch the movement direction of the cylinder 302. The limit switch 309 is installed on the wedge-shaped base 301 horizontally and perpendicularly to the incident direction of the synchrotron radiation light, and is located on both sides of the movement direction of the switch collision block 310. The limit switch 309 on one side is used to indicate the light-transmitting state, and the limit switch 309 on the other side is used to indicate the light-blocking state. When the switch collision block 310 hits a specific limit switch 309 and triggers the switch, it indicates that the absorber 111 is at the position indicated by the limit switch 309.

[0072] like Fig. 9 As shown, the driving rod 306 is a round rod structure with a straight through hole in the center, a loose-fitting knife-edge flange 306a at one end, and an annular groove 306b at the other end, and an inner-welded knife-edge flange 306c is welded next to the groove.

[0073] like Figure 1 , Figure 8 and Fig. 9As shown, the top of the joint adapter plate 304 is stuck in the annular groove 306b, and a ""-shaped" clamping block 307 is installed on the top of the joint adapter plate 304 at the same time. The clamping block 307 is also stuck in the annular groove 306b, and the step of the annular groove 306b and the clamping block 307 are relied on to limit the joint adapter plate 304 and prevent it from slipping. The inner welding type knife edge flange 306c of the drive rod 306 is sealed and connected with one end of the bellows 308, and the end of the drive rod 306 provided with the loose sleeve type knife edge flange 306a passes the bellows 308, and the bellows 308 is used to seal the vacuum on the 306c side of the drive rod. For compact structure, the diameter of the bellows 308 is smaller than the loose sleeve type knife edge flange 306a, and the loose sleeve type knife edge flange 306a is also used for vacuum sealing. When the drive rod reciprocates, the bellows 308 is sleeved on the drive rod 306 as a telescopic flexible sealing connector. The other end of the bellows 308 is sealed and connected to the branch pipe 212 for sealing the driving mechanism 3. At the same time, the blind knife-edge flange 113 of the shutter absorber assembly 11 is sealed and connected to the loose-fitting knife-edge flange 306a at one end of the driving rod 306, and the cooling water pipe 112 of the shutter absorber assembly 11 passes through the central straight hole of the driving rod 306, thereby guiding the cooling water pipe 112 to the outside of the vacuum chamber 2.

[0074] like Fig.10 As shown, the hinge assembly 4 mainly includes a crossbar seat 41, a crossbar 42, a crossbar block 43, a vertical bar 44, a vertical bar seat 45 and a vertical bar seat adapter plate 46. Two crossbars 42 are installed in parallel in the groove of the crossbar seat 41, and a gap is left between the two crossbars 42. The crossbar block 43 limits the crossbar 42 to prevent it from moving out of the groove of the crossbar seat 41. The vertical bar 44 crosses through the gap between the two crossbars 42 and is installed on the vertical bar seat 45. There is no fixed connection between the crossbar 42 and the vertical bar 44, and the two can slightly stagger and rotate.

[0075] The cross rod seat 41 of the hinge assembly 4 is fixedly connected to the side of the middle area of ​​the support plate 121 of the clamping mechanism 12, thereby realizing effective connection between the hinge assembly 4 and the clamping mechanism 12 and the light shutter absorber 111 thereon; the vertical rod seat 45 of the hinge assembly 4 is fixedly connected to the blind knife edge flange 306a of the driving rod 306 through the vertical rod seat adapter plate 46, ensuring effective connection between the hinge assembly 4 and the driving mechanism 3.

[0076] The driving mechanism 3 drives the hinge assembly 4 so that the clamping mechanism 12 connected thereto and the shutter absorber 111 thereon move back and forth along the vacuum linear slider guide 133 above the platform 131 .

[0077] like Fig.11As shown, when the driving mechanism 3 drives the hinge assembly 4, the clamping mechanism 12 connected thereto and the light shutter absorber 111 thereon block the synchrotron radiation light, which is the light blocking state. As can be seen from the figure, the absorber 111 can block the synchrotron radiation light of three types of inserts, wherein the first inclined surface 111a is responsible for blocking the central area of ​​the small-sized synchrotron radiation light with high power density and the large-sized synchrotron radiation light with low power density, while the second inclined surface 111b and the third inclined surface 111c block the peripheral area of ​​the large-sized synchrotron radiation light with low power density.

[0078] like Fig.12 As shown in the figure, when the driving mechanism 3 drives the hinge assembly 4, the clamping mechanism 12 connected thereto and the light gate absorber 111 thereon are completely moved out of the synchrotron radiation light irradiation area, which is the light-passing state. It can be seen from the figure that after the absorber 111 is completely moved out of the synchrotron radiation light irradiation area, the synchrotron radiation light of the three inserts can smoothly pass through the pipeline 211 for transporting synchrotron radiation light to reach the downstream position of the device of the embodiment of the present invention.

[0079] By repetition Fig.11 and Fig.12 The operation of the two states shown realizes the effective control of the shutter absorber 111 between light passing and light blocking.

[0080] Although the specific embodiments of the present invention are disclosed for the purpose of illustration, the purpose is to help understand the content of the present invention and implement it accordingly, those skilled in the art will understand that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the present invention should not be limited to the content disclosed in the best embodiment, and the scope of the present invention is subject to the scope defined in the claims.

Claims

1. A translational photon shutter device capable of being used with multiple inserts, characterized in that: The invention comprises a light shutter switching component (1), a vacuum chamber (2), a driving mechanism (3) and a hinge component (4); the light shutter switching component (1) and the hinge component (4) are installed in the vacuum chamber (2), and the driving mechanism (3) is located outside the vacuum chamber (2); the driving mechanism (3) drives the light shutter switching component (1) to move back and forth through the hinge component (4), so as to switch and control the light transmission and light blocking of the synchronous radiation light; An absorber (111) is provided inside the optical shutter switching component (1), the top of the absorber (111) being a light receiving surface, the light receiving surface comprising a plurality of inclined surfaces inclined upward along the incident direction of the synchrotron radiation light, and being used for simultaneously blocking the synchrotron radiation light generated by a plurality of inserts.

2. The translational photon shutter device according to claim 1, characterized in that: The multiple inclined surfaces constituting the light-receiving surface include a first inclined surface processed along the central area of ​​the optical axis, and multiple pairs of inclined surfaces processed with the first inclined surface as the center; wherein the first pair of inclined surfaces includes a second inclined surface processed upwardly from the top of the first inclined surface, and a third inclined surface processed upwardly from the bottom of the first inclined surface; the second pair of inclined surfaces includes a fourth inclined surface processed upwardly from the top of the second inclined surface, and a fifth inclined surface processed upwardly from the bottom of the third inclined surface, and so on until the required multiple inclined surfaces are processed; the first inclined surface is symmetrical about the center of the optical axis, and each pair of inclined surfaces is symmetrically arranged about the center of the optical axis.

3. The translational photon shutter device according to claim 2, characterized in that: The two inclined planes in each pair of inclined planes have the same inclined plane angle, the inclined plane angle of the first inclined plane is smaller than the inclined plane angle of the first pair of inclined planes, and the inclined plane angle of the i-th pair of inclined planes is smaller than the inclined plane angle of the i+1-th pair of inclined planes; the inclined plane angles are grazing incidence angles; the inclined plane angle of each inclined plane is determined according to the power density distribution of the light source of the inserted part blocked by it; wherein, the inclined plane with a small grazing incidence angle close to the central area of ​​the optical axis is used to block the synchrotron radiation light generated by the insert with a large power density and a small spot size or the central area synchrotron radiation light generated by the insert with a large spot size, while the inclined plane with a large grazing incidence angle relatively far from the central area of ​​the optical axis is used to block the synchrotron radiation light in the peripheral area generated by the insert with a large spot size.

4. The translational photon shutter device according to claim 2, characterized in that: The two inclined planes in each pair of inclined planes have the same inclined plane length, the inclined plane length of the first inclined plane is greater than the inclined plane length of the inclined planes in the first pair of inclined planes, and the inclined plane length of the i-th pair of inclined planes is greater than the inclined plane length of the i+1-th pair of inclined planes; the inclined plane length corresponding to each inclined plane is determined according to the spot size of the light source of the inserted part blocked by it at the light blocking position of the light receiving surface.

5. The translational photon shutter device according to claim 1, characterized in that: The optical shutter switching assembly (1) comprises an optical shutter absorber assembly (11), a clamping mechanism (12) and a guide bracket (13) arranged from top to bottom, and the optical shutter absorber assembly (11) comprises the absorber (111), a cooling water pipe (112) and a blind blade flange (113); a plurality of circular channels intersecting in pairs are arranged inside the absorber (111), and the circular channels are connected in series and the ends thereof are respectively connected to the cooling water pipe (112) to form a series of cooling water channels; the cooling water pipe (112) is sealedly connected to the driving mechanism (3) via the blind blade flange (113) and is used to lead the water inlet and outlet ends of the cooling water pipe (112) to the outside of the vacuum chamber (2).

6. The translational photon shutter device according to claim 5, characterized in that: The clamping mechanism (12) comprises a support plate (121), a translation adjustment component (122), a heat insulation plate (123) and a fastening screw (124); bosses are respectively provided at both ends of the support plate (121), wherein the boss at one end is provided with a plurality of vertically upward fastening screws (124), and a translation adjustment component (122) is respectively provided on the front and rear sides of the boss at the other end; the translation adjustment component (122) comprises an adjustment seat (122a) and a ball head screw (122b), and the bottom of one end of the absorbent (111) is mounted on the absorbent (111) via the fastening screw (124). The other end of the absorber (111) is placed on the boss at one end of the support plate (121), and the other end of the absorber (111) is laterally constrained by the ball head screw (122b) of the translation adjustment component (122); the heat insulation board (123) is installed between the bosses at both ends of the support plate (121) and the absorber (111), and the upper and lower surfaces of the heat insulation board (123) are provided with a comb-shaped stripe structure for reducing heat transfer between the absorber (111) and the support plate (121).

7. The translational photon shutter device according to claim 6, characterized in that: The guide bracket (13) comprises a table (131), height-adjustable legs (132), a vacuum linear slider guide rail (133), a copper braid (134) and a slider adapter plate (135); four height-adjustable legs (132) are arranged below the table (131) for adjusting the height and level of the table (131); two pairs of vacuum linear slider guide rails (133) are installed above the table (131), and each of the vacuum linear slider guide rails (133) ) comprises a vacuum linear guide rail and a vacuum guide rail slider, the two vacuum linear guide rails are arranged in parallel and transversely below the bosses at both ends of the support plate (121), the two vacuum guide rail sliders are respectively connected and fixed to the support plate (121) through a slider adapter plate (135), the copper braid (134) is provided between the vacuum guide rail slider and the slider adapter plate (135), and the other end of the copper braid (134) is respectively fixed to the cooling water pipe (112).

8. The translational photon shutter device according to claim 5, characterized in that: The vacuum chamber (2) comprises a vacuum chamber body (21) with an open top and a top cover (22); the top of the vacuum chamber body (21) is sealed and connected to the top cover (22); pipes (211) for transporting synchrotron radiation light are provided at both ends of the vacuum chamber body (21) along the incident direction of the synchrotron radiation light; a branch pipe (212) for sealing with the driving mechanism (3) is provided on one side horizontally and perpendicularly to the incident direction of the synchrotron radiation light; and a branch pipe (213) for installing an ion pump is provided at the center of the bottom of the vacuum chamber body (21).

9. The translational photon shutter device according to claim 8, characterized in that: The driving mechanism (3) comprises a wedge-shaped base (301), a cylinder (302), a floating joint (303), a joint adapter plate (304), a common linear slide rail (305), a driving rod (306), a pressing block (307), a bellows (308), a limit switch (309), a switch collision block (310) and a solenoid valve (311); the wedge-shaped base (301) is mounted on a side of the vacuum chamber body (21) having the branch pipe (212); the cylinder (302) is mounted on an end of the wedge-shaped base (301) and is connected to the joint adapter plate (304) via the floating joint (303); the joint adapter plate (304) ) are provided with two pairs of ordinary linear slider guide rails (305) in parallel on both sides; each of the ordinary linear slider guide rails (305) comprises an ordinary linear guide rail and an ordinary guide rail slider, the two guide rail sliders are respectively fixedly connected to the joint adapter plate (304), and the two ordinary linear guide rails are fixedly connected to the wedge-shaped base (301) in parallel; the driving rod (306) is a round rod structure with a straight through hole at the center, one end of the driving rod (306) is equipped with a loose sleeve type knife edge flange (306a), and the other end is provided with an annular groove (306b), and the side of the annular groove (306b) is welded with an inner welding type knife edge flange (306c); the top of the joint adapter plate (304) The joint adapter plate (304) is mounted with a "X"-shaped clamping block (307) on the top of the joint adapter plate (304), and the clamping block (307) is clamped into the annular groove (306b) to limit the position of the joint adapter plate (304); the inner welded knife edge flange (306c) of the driving rod (306) is sealedly connected to one end of the bellows (308), and one end of the driving rod (306) provided with a loose sleeve knife edge flange (306a) passes through the bellows (308), and the other end of the bellows (308) is sealedly connected to the branch pipe (212); the blind knife edge flange (113) is sealed to the loose sleeve knife edge flange (306c) of the driving rod (306). The flange (306a) is sealed and connected, and the cooling water pipe (112) passes through the central straight hole of the driving rod (306) and is guided to the outside of the vacuum chamber (2); the switch collision block (310) is installed on one side of the joint adapter plate (304) and moves horizontally with the slider of the ordinary linear slider guide rail (305); the solenoid valve (311) is used to switch the movement direction of the cylinder (302); the limit switch (309) is installed on the wedge-shaped base (301) horizontally and perpendicularly to the incident direction of the synchrotron radiation light, and is located on both sides of the movement direction of the switch collision block (310), wherein the limit switch (309) on one side is used to indicate the light-transmitting state, and the limit switch (309) on the other side is used to indicate the light-blocking state.

10. The translational photon shutter device according to claim 9, characterized in that: The hinge assembly (4) comprises a crossbar seat (41), a crossbar (42), a crossbar stopper (43), a vertical bar (44), a vertical bar seat (45) and a vertical bar seat adapter plate (46); wherein the two crossbars (42) are installed in parallel in the groove of the crossbar seat (41), and a gap is left between the two crossbars (42); the crossbar stopper (43) is connected to the opening of the groove and is used to limit the crossbar (42) and prevent it from moving out of the groove of the crossbar seat (41); the vertical bar (44) passes through the gap between the two crossbars (42) and is installed on the vertical bar seat (45); the crossbar seat (41) The support plate (121) of the clamping mechanism (12) is fixedly connected to realize the effective connection between the hinge assembly (4) and the clamping mechanism (12) and the absorber (111) thereon; the vertical rod seat (45) is fixedly connected to the loose-fitting blade flange (306a) of the driving rod (306) through the vertical rod seat adapter plate (46) to ensure the effective connection between the hinge assembly (4) and the driving mechanism (3); the driving mechanism (3) drives the clamping mechanism (12) and the absorber (111) thereon connected thereto through the hinge assembly (4) to reciprocate and translate along the vacuum linear slider guide (133) above the table (131).

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