Beam shaping device

Abstract

To provide a beam shaping device.SOLUTION: A beam shaping device comprises: a beam shaping assembly including a front module and a rear module defining a work space for accommodating a neutron source together with the front module; and a main support frame configured to support the front module and the rear module. The neutron source is configured to generate a plurality of neutrons, and the beam shaping assembly is configured to adjust an energy spectrum of the neutrons to generate a neutron beam.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a beam shaping device. [Background technology]

[0002] Boron Neutron Capture Therapy (BNCT) is a targeted heavy ion radiotherapy. Treatment equipment using this technology generates an ion beam using an accelerator, which then collides with the target to generate a neutron source. The Beam Shaping Assembly (BSA) then uses its collection, deceleration, and focusing functions to generate a high-performance neutron beam, thereby improving the quality of treatment.

[0003] However, due to the need for operation, maintenance, and repair, the accelerator and its associated beam pipe must be separated from the beam shaping assembly, and the above measures cannot be taken unless there is sufficient working space between them. After operation, maintenance, and repair are completed, both must be reset. Furthermore, the accelerator and the beam shaping assembly are both heavy machinery, and alignment is not easy. Therefore, how to enable users to easily and effectively adjust the accelerator and beam shaping assembly effectively and accurately in a limited space is undoubtedly a major issue in the industry. Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a beam shaping device that can efficiently utilize space and accurately adjust the position and horizontal height of a beam shaping assembly, thereby enabling accurate alignment with an accelerator. Furthermore, during installation or subsequent maintenance of the accelerator and its associated beam line pipe, the front and rear modules of the beam shaping assembly can be easily and quickly separated to provide the required working space, and after the work is completed, the front and rear modules of the beam shaping assembly can be easily and quickly reset and reassembled. [Means for solving the problem]

[0005] According to one embodiment of the present invention, a beam shaping device is provided, comprising: a beam shaping assembly including a front module and a rear module that, together with the front module, defines a working space for accommodating a neutron source; and a main support frame configured to support the front module and the rear module, wherein the neutron source is configured to generate a plurality of neutrons, and the beam shaping assembly is configured to adjust the energy spectrum of these neutrons to generate a neutron beam.

[0006] In one or more embodiments of the present invention, the main support frame includes a first support bracket, a plurality of first rails mounted on the first support bracket and configured to allow the front module and the rear module to be movably mounted thereon, a first regulating bracket to which the first support bracket is movably connected, a plurality of anchor bases separated from each other and mounted on a ground base, and a plurality of first level adjusters each connected between a corresponding one of the anchor bases and the first regulating bracket.

[0007] In one or more embodiments of the present invention, the first rails each extend along a first direction, and the first support bracket is configured to move along the first direction and a second direction relative to the first regulating bracket, the second direction being perpendicular to the first direction.

[0008] In one or more embodiments of the present invention, the first horizontal adjusters are configured to adjust the position of the first restraining bracket relative to a corresponding one of the anchor bases along a third direction, the third direction being perpendicular to the first direction and the second direction.

[0009] In one or more embodiments of the present invention, the beam shaping device further includes a first auxiliary support frame detachably connected to the main support frame and the front module and for moving the front module relative to the main support frame, and a second auxiliary support frame detachably connected to the main support frame and the rear module and for moving the rear module relative to the main support frame.

[0010] In one or more embodiments of the present invention, the first rails each extend along a first direction, the front module and the rear module are arranged along the first direction, and the first auxiliary support frame and the second auxiliary support frame are detachably connected to opposite sides of the main support frame along the first direction.

[0011] In one or more embodiments of the present invention, the first auxiliary support frame includes a second support bracket detachably connected to the first support bracket, a plurality of second rails provided on the second support bracket and aligned with the first rail, a second regulating bracket that supports and fixes the second support bracket, a first base frame detachably connected to at least one corresponding one of the anchor bases, a plurality of second level adjusters that are respectively connected between the first base frame and the second regulating bracket and configured to adjust the distance between the first base frame and the second regulating bracket, a first drive unit connected to the second support bracket, and a first moving unit configured to be detachably connected to the front module, wherein the first drive unit is connected to the first moving unit and configured to drive the movement of the first moving unit.

[0012] In one or more embodiments of the invention, the first drive part and the first moving part are located between second rails.

[0013] In one or more embodiments of the present invention, the first drive unit includes a first connecting member, a first threaded rod connected between the second support bracket and the first connecting member and configured to rotate relative to the second support bracket and the first connecting member, and to which the first moving unit is coupled, and at least one first guide rod passing through the first moving unit and connected between the second support bracket and the first connecting member, and parallel to the first threaded rod and the second rail.

[0014] In one or more embodiments of the present invention, the second auxiliary support frame includes a third support bracket detachably connected to the first support bracket, a plurality of third rails provided on the third support bracket and aligned with the first rail, a third regulating bracket that supports and fixes the third support bracket, a second base frame detachably connected to at least the other corresponding one of the anchor bases, a plurality of third level adjusters that are respectively connected between the second base frame and the third regulating bracket and configured to adjust the distance between the second base frame and the third regulating bracket, a second drive unit connected to the third support bracket, and a second moving unit configured to be detachably connected to the rear module, and the second drive unit is connected to the second moving unit and configured to drive the movement of the second moving unit.

[0015] In one or more embodiments of the invention, the second drive section and the second moving section are located between third rails.

[0016] In one or more embodiments of the present invention, the second drive unit includes a second connecting member, a second threaded rod connected between the third support bracket and the second connecting member and configured to rotate relative to the third support bracket and the second connecting member, and to which the second moving unit is coupled, and at least one second guide rod passing through the second moving unit and connected between the third support bracket and the second connecting member, and parallel to the second threaded rod and the third rail.

[0017] In one or more embodiments of the invention, the first threaded rod has a first length and the second threaded rod has a second length different from the first length. [Effects of the Invention]

[0018] The above embodiment of the present invention has at least the following advantages.

[0019] (1) The first and second auxiliary support frames are detachably connected to opposite sides of the main support frame along a first direction, so that the front module and the rear module can be moved relative to the main support frame so as to move away from or toward each other, respectively, which allows better utilization of the environmental space in which the beam shaping device is located, thereby enabling users to easily operate, repair, or maintain the accelerator and its associated beam ray pipes. Furthermore, when the first and second auxiliary support frames no longer support the front module and the rear module, the first and second auxiliary support frames can be removed, which is advantageous for space saving.

[0020] (2) The movements of the front module and rear module mounted on the main support frame in the first, second and third directions are achieved by mechanisms independent of each other, i.e., the movements of the front module and rear module in the first, second and third directions do not affect or interfere with each other, so that the user can accurately adjust the position and horizontal height of the front module and rear module, which is advantageous to improving the operating effect of the beam shaping device.

[0021] (3) Since the maximum stroke of the first moving part is different from the maximum stroke of the second moving part, the movement ranges of the front module and the rear module in the first direction can be different, thereby increasing the flexibility of use of the beam shaping device. [Brief explanation of the drawings]

[0022] [Figure 1]1 is a perspective schematic diagram illustrating a beam shaping device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a side view showing the beam shaping device of FIG. [Figure 3] FIG. 3 is a perspective schematic view showing the beam shaping device of FIGS. 1 and 2, in which the front module and the rear module have already been placed on the main support frame, but the first auxiliary support frame and the second auxiliary support frame have already been removed. [Figure 4] FIG. 4 is an exploded schematic view showing the main support frame of FIG. 3. [Figure 5] FIG. 3 is a schematic perspective view showing a first auxiliary support frame of FIGS. 1 and 2. [Figure 6] FIG. 3 is a schematic perspective view showing a second auxiliary support frame of FIGS. 1 and 2. DETAILED DESCRIPTION OF THE INVENTION

[0023] In the following, several embodiments of the present invention are disclosed in the drawings, and many practical details are set forth in the following description for clarity. However, it should be understood that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not required. Furthermore, to simplify the drawings, some conventional structures and elements are simply illustrated in the drawings, but the same reference numerals are used to represent the same or similar elements in all drawings. Furthermore, features of different embodiments can be applied interchangeably, if possible.

[0024] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the general meaning that can be understood by those skilled in the art. Furthermore, the above terms should be interpreted as defined in commonly used dictionaries and as meanings consistent with the relevant field of the present invention in the context of this specification. Unless otherwise clearly defined, these terms should not be interpreted as idealized or overly formal.

[0025] 1 and 2, FIG. 1 is a perspective schematic diagram illustrating a beam shaping device 100 according to an embodiment of the present invention. FIG. 2 is a side view illustrating the beam shaping device 100 of FIG. 1. In this embodiment, as shown in FIGS. 1 and 2, the beam shaping device 100 includes a beam shaping assembly 110, a main support frame 130, a first auxiliary support frame 140, and a second auxiliary support frame 150. The beam shaping assembly 110 includes a front module 111 and a rear module 112. For simplicity, the front module 111 and the rear module 112 of the beam shaping assembly 110 are all shown with dotted lines in FIG. 1. The front module 111 and the rear module 112 define a workspace WS therein, and the workspace WS is configured to accommodate a neutron source 200 (see FIG. 2 for the neutron source 200; for simplicity, the neutron source 200 is not shown in FIG. 1). The neutron source 200 is an actual target and is connected to an accelerator via a beam ray pipe (the beam ray pipe and the accelerator are not shown). A beam is generated from the accelerator and collides with the neutron source 200 via the beam ray pipe to generate neutrons. When the beam shaping device 100 is in operation, the front module 111 and the rear module 112 are connected and combined with each other (shown in FIG. 3 ). The beam shaping assembly 110 adjusts the energy spectrum of neutrons generated by the neutron source 200 by collecting, slowing down, focusing, etc., thereby generating a high-performance neutron beam and improving the therapeutic effect of the beam shaping device 100. The main support frame 130 is configured to support the front module 111 and the rear module 112. The first auxiliary support frame 140 is detachably connected to the main support frame 130 and the front module 111 and is used to move the front module 111 relative to the main support frame 130. The second auxiliary support frame 150 is detachably connected to the main support frame 130 and the rear module 112 and is used to move the rear module 112 relative to the main support frame 130 .

[0026] 1 and 2, the front module 111 and the rear module 112 are arranged along a first direction D1, and the first auxiliary support frame 140 and the second auxiliary support frame 150 are also detachably connected to opposite sides of the main support frame 130 along the first direction D1. Therefore, the front module 111 can move from the first auxiliary support frame 140 to the main support frame 130, or from the main support frame 130 to the first auxiliary support frame 140, along the first direction D1. Similarly, the rear module 112 can move from the second auxiliary support frame 150 to the main support frame 130, or from the main support frame 130 to the second auxiliary support frame 150, along the first direction D1. In this way, the first auxiliary support frame 140 and the second auxiliary support frame 150 are detachably connected to opposite sides of the main support frame 130 along the first direction D1, so that the front module 111 and the rear module 112 can be moved away from or toward each other relative to the main support frame 130, thereby making better use of the space in the environment where the beam shaping device 100 is located and allowing users to easily operate, repair, or maintain the accelerator and its associated beam ray pipes. For example, the distance between the front module 111 and the rear module 112 can reach 200 cm.

[0027] Please refer to Figures 3 and 4. Figure 3 is a perspective schematic view showing the beam shaping device 100 of Figures 1 and 2, in which the front module 111 and the rear module 112 have already been placed on the main support frame 130, but the first auxiliary support frame 140 and the second auxiliary support frame 150 have all been removed. Figure 4 is an exploded schematic view showing the main support frame 130 of Figure 3. For simplicity of the drawing, in Figure 3, the front module 111 and the rear module 112 of the beam shaping assembly 110 are all shown with dotted lines, and the front module 111 and the rear module 112 are already close to and connected to each other. The already connected and combined beam shaping assembly 110 can adjust the energy spectrum of neutrons generated by the neutron source 200, thereby generating a high-performance neutron beam. At this time, the first auxiliary support frame 140 and the second auxiliary support frame 150 (see Figures 1 and 2 for the first auxiliary support frame 140 and the second auxiliary support frame 1500) no longer support the front module 111 and the rear module 112, so they can be removed, which is advantageous for saving space.

[0028] In this embodiment, as shown in FIGS. 3 and 4, the main support frame 130 includes a first support bracket 131, a plurality of first rails 132, a first regulating bracket 133, a plurality of anchor bases 134, and a plurality of first level adjusters 135. The first rails 132 are mounted on the first support bracket 131, and the front module 111 and the rear module 112 are configured to be movably mounted on the first rails 132. The first support bracket 131 is movably connected to the first regulating bracket 133, which can actually be welded using a U-shaped groove. The anchor bases 134 are separated from each other and mounted on a ground base 300 (see FIGS. 1 and 2 for the ground base 300). Each of the first level adjusters 135 is connected between a corresponding one of the anchor bases 134 and the first regulating bracket 133.

[0029] 3 and 4, the first rails 132 extend along a first direction D1 so that the front module 111 and the rear module 112 can move along the first direction D1 on the first rails 132 relative to the first support bracket 131. The first support bracket 131 is configured to move along the first direction D1 and a second direction D2 relative to the first restriction bracket 133, and the second direction D2 is perpendicular to the first direction D1.

[0030] 3 and 4, the first restricting bracket 133 has a plurality of first screw holes H1 distributed on opposite sides of the first restricting bracket 133 and each extending along a first direction D1. A user can use a plurality of first screws S1 to couple to the corresponding first screw holes H1 and press the first support bracket 131 with the first screws S1, thereby moving the first support bracket 131 along the first direction D1 relative to the first restricting bracket 133, i.e., accurately moving the front module 111 and the rear module 112 mounted on the first support bracket 131 in the first direction D1 so that the front module 111 and the rear module 112 can be accurately aligned with the neutron source 200. For example, the movement range of the first support bracket 131 along the first direction D1 relative to the first restricting bracket 133 is ±1 cm.

[0031] Similarly, as shown in Figures 3 and 4, the first control bracket 133 further has a plurality of second screw holes H2 distributed on opposite sides of the first control bracket 133 and each extending along the second direction D2, and the user can use a plurality of second screws S2 to respectively engage with the corresponding second screw holes H2 and press the second screws S2 against the first support bracket 131, thereby moving the first support bracket 131 along the second direction D2 relative to the first control bracket 133, that is, accurately moving the front module 111 and the rear module 112 mounted on the first support bracket 131 in the second direction D2 so that the front module 111 and the rear module 112 can be accurately aligned with the neutron source 200.

[0032] Furthermore, as shown in Figures 3 and 4, each of the anchor bases 134 has a plurality of third screw holes H3 extending along the second direction D2. When the first control bracket 133 is fixed to the anchor base 134 in the second direction D2, the user can use a plurality of third screws S3 to engage with the corresponding third screw holes H3 and use the third screws S3 to press the first support bracket 131, thereby moving the first support bracket 131 along the second direction D2 relative to the first control bracket 133, i.e., accurately moving the front module 111 and the rear module 112 mounted on the first support bracket 131 in the second direction D2, and accurately moving the front module 111 and the rear module 112 mounted on the first support bracket 131 in the second direction D2 so that the front module 111 and the rear module 112 can be accurately aligned with the neutron source 200. For example, the range of movement of the first support bracket 131 relative to the first restraining bracket 133 along the second direction D2 is ±1 cm.

[0033] However, the above-mentioned form of pushing the first support bracket 131 with a screw so that it moves relative to the first regulating bracket 133 is merely an example and is not used to limit the present invention, and it should be understood that a person skilled in the art should appropriately select a form of moving the first support bracket 131 relative to the first regulating bracket 133 according to the actual situation.

[0034] Furthermore, the first level adjusters 135 are each configured to adjust the position of the first limiting bracket 133 relative to a corresponding one of the anchor bases 134 along a third direction D3, where the third direction D3 is perpendicular to the first direction D1 and the second direction D2. By adjusting the position of the first limiting bracket 133 relative to the corresponding anchor base 134 in the third direction D3 with the individual first level adjusters 135, a user can simply and easily achieve an accurate horizontal height in the third direction D3 for the front module 111 and the rear module 112 mounted on the main support frame 130 so that the front module 111 and the rear module 112 can be accurately aligned with the neutron source 200. For example, the movement range of the first limiting bracket 133 relative to the corresponding anchor base 134 along the third direction D3 is ±0.5 cm.

[0035] In this embodiment, the first rails 132 in the first support bracket 131 each extend along a first direction D1, the corresponding first screw hole H1 coupled to the first screw S1 can be fine-tuned along the first direction D1, the corresponding second screw hole H2 coupled to the second screw S2 and the corresponding third screw hole H3 coupled to the third screw S3 can be fine-tuned along the second direction D2, and the first horizontal adjuster 135 can fine-tune the position of the first regulating bracket 133 relative to a corresponding one of the anchor bases 134 along the third direction D3. The first screw S1 coupled to the first screw hole H1 can be finely adjusted in the first direction D1, but to avoid this fine adjustment affecting the coupling between the second screw S2 and the second screw hole H2 and / or the coupling between the third screw S3 and the third screw hole H3, the mutual independence of the movements of different parts of the main support frame 130 in the first direction D1, the second direction D2 and the third direction D3 must be mediated by the movement of the first rail 132 in the first direction D1.

[0036] Furthermore, as described above, the movements of the front module 111 and the rear module 112 mounted on the main support frame 130 in the first direction D1, the second direction D2 and the third direction D3 are achieved by mechanisms independent of each other, i.e., the movements of the front module 111 and the rear module 112 in the first direction D1, the second direction D2 and the third direction D3 do not affect or interfere with each other, so that the user can accurately adjust the position and horizontal height of the front module 111 and the rear module 112, which is advantageous to improving the operating efficiency of the beam shaping device 100.

[0037] Please refer to FIG. 5. FIG. 5 is a perspective schematic view showing the first auxiliary support frame 140 of FIGS. 1 and 2. In this embodiment, as shown in FIG. 5, the first auxiliary support frame 140 includes a second support bracket 141, a plurality of second rails 142, a second regulating bracket 143, a first base frame 144, a plurality of second level adjusters 145, a first driving unit 146, and a first moving unit 147. The second support bracket 141 is detachably connected to the first support bracket 131 (see FIGS. 1 and 2). The second rail 142 is provided on the second support bracket 141 and is aligned with the first rail 132 (see FIGS. 1 and 2). The second regulating bracket 143 supports and fixes the second support bracket 141. The first base frame 144 is detachably connected to at least one corresponding one of the anchor bases 134 (see FIGS. 1 and 2). The second level adjusters 145 are respectively connected between the first base frame 144 and the second regulating bracket 143 and configured to move the second regulating bracket 143 relative to the first base frame 144 along the third direction D3, thereby adjusting the distance between the first base frame 144 and the second regulating bracket 143. The first driving unit 146 is connected to the second support bracket 141. For example, in this embodiment, the first driving unit 146 is further detachably connected to the first support bracket 131. However, in other embodiments, depending on the actual situation, the first driving unit 146 and the first support bracket 131 are separated from each other, that is, the first driving unit 146 and the first support bracket 131 are not connected to each other. The first moving unit 147 is configured to be detachably connected to the front module 111 (see FIGS. 1 and 2), and the first driving unit 146 is connected to the first moving unit 147 and configured to drive the movement of the first moving unit 147.

[0038] In addition, the first driving part 146 and the first moving part 147 are located between the second rails 142, that is, the second rails 142 are separated from each other, thereby providing a more stable support for the front module 111.

[0039] More specifically, the first driving unit 146 includes a first connecting member 1461, a first threaded rod 1462, and at least one first guide rod 1463. As described above, for example, in this embodiment, the first connecting member 1461 is detachably connected to the first support bracket 131. However, in other embodiments, depending on the actual situation, the first connecting member 1461 and the first support bracket 131 may be separated from each other, i.e., the first connecting member 1461 and the first support bracket 131 may not be connected to each other. The first threaded rod 1462 is connected between the second support bracket 141 and the first connecting member 1461, and is configured to rotate relative to the second support bracket 141 and the first connecting member 1461, and the first moving unit 147 is coupled to the first threaded rod 1462. The first guide rod 1463 passes through the first moving part 147 and is connected between the second support bracket 141 and the first connecting member 1461. The first guide rod 1463, the first threaded rod 1462, and the second rail 142 are parallel to each other and extend along the first direction D1. By rotating the first threaded rod 1462 and being restricted and guided by the first guide rod 1463, the first moving part 147 can move along the first guide rod 1463 and the first threaded rod 1462, and is thereby movably connected to the front module 111 of the first moving part 147 in the first direction D1.

[0040] Please refer to FIG. 6. FIG. 6 is a perspective schematic view showing the second auxiliary support frame 150 of FIGS. 1 and 2. In this embodiment, as shown in FIG. 6, the second auxiliary support frame 150 includes a third support bracket 151, a plurality of third rails 152, a third regulating bracket 153, a second base frame 154, a plurality of third level adjusters 155, a second driving unit 156, and a second moving unit 157. The third support bracket 151 is detachably connected to the first support bracket 131 (see FIGS. 1 and 2). The third rail 152 is provided on the third support bracket 151 and is aligned with the first rail 132 (see FIGS. 1 and 2). The third regulating bracket 153 supports and fixes the third support bracket 151. The second base frame 154 is detachably connected to at least the other corresponding one of the anchor bases 134 (see FIGS. 1 and 2). The third level adjusters 155 are respectively connected between the second base frame 154 and the third regulating bracket 153 and configured to move the third regulating bracket 153 relative to the second base frame 154 along the third direction D3, thereby adjusting the distance between the second base frame 154 and the third regulating bracket 153. The second driving unit 156 is connected to the third support bracket 151. For example, in this embodiment, the second driving unit 156 is further detachably connected to the first support bracket 131. However, in other embodiments, depending on the actual situation, the second driving unit 156 and the first support bracket 131 are separated from each other, i.e., the second driving unit 156 and the first support bracket 131 are not connected to each other. The second moving unit 157 is configured to be detachably connected to the rear module 112 (see FIGS. 1 and 2), and the second driving unit 156 is connected to the second moving unit 157 and configured to drive the movement of the second moving unit 157.

[0041] In addition, the second driving part 156 and the second moving part 157 are located between the third rails 152, that is, the third rails 152 are separated from each other, thereby providing a more stable support for the rear module 112.

[0042] More specifically, the second driving unit 156 includes a second connecting member 1561, a second threaded rod 1562, and at least one second guide rod 1563. As described above, for example, in this embodiment, the second connecting member 1561 is detachably connected to the first support bracket 131. However, in other embodiments, depending on the actual situation, the second connecting member 1561 and the first support bracket 131 may be separated from each other, i.e., the second connecting member 1561 and the first support bracket 131 may not be connected to each other. The second threaded rod 1562 is connected between the third support bracket 151 and the second connecting member 1561, and is configured to rotate relative to the third support bracket 151 and the second connecting member 1561, and the second moving unit 157 is coupled to the second threaded rod 1562. The second guide rod 1563 passes through the second moving part 157 and is connected between the third support bracket 151 and the second connecting member 1561. The second guide rod 1563, the second screw rod 1562, and the third rail 152 are parallel to each other and extend along the first direction D1. By rotating the second screw rod 1562 and being restricted and guided by the second guide rod 1563, the second moving part 157 can move along the second guide rod 1563 and the second screw rod 1562, thereby being movably connected to the rear module 112 of the second moving part 157 in the first direction D1.

[0043] Furthermore, as shown in FIG. 5 , the first threaded rod 1462 has a first length L1, and as shown in FIG. 6 , the second threaded rod 1562 has a second length L2. In actual applications, the first length L1 and the second length L2 are different, i.e., the maximum stroke of the first moving part 147 is different from the maximum stroke of the second moving part 157. In this way, the movement ranges of the front module 111 and the rear module 112 in the first direction D1 can be different, thereby increasing the flexibility of use of the beam shaping device 100. For example, depending on actual situations, the second length L2 can be greater than the first length L1, i.e., the movement range of the rear module 112 in the first direction D1 can be greater than the movement range of the front module 111 in the first direction D1.

[0044] As described above, the technical solutions disclosed in the above embodiments of the present invention have at least the following advantages.

[0045] (1) The first and second auxiliary support frames are detachably connected to opposite sides of the main support frame along the first direction, allowing the front and rear modules to move relative to the main support frame and move closer or farther from each other, thereby making better use of the environmental space in which the beam shaping device is located and allowing users to easily operate, repair, or maintain the accelerator and its associated beam ray pipes. Furthermore, when the first and second auxiliary support frames no longer support the front and rear modules, they can be removed, which is advantageous for space saving.

[0046] (2) The movements of the front module and the rear module mounted on the main support frame in the first, second and third directions are achieved by mechanisms independent of each other, i.e., the movements of the front module and the rear module in the first, second and third directions do not affect or interfere with each other, so that the user can accurately adjust the position and horizontal height of the front module and the rear module, which is advantageous to improving the operating effect of the beam shaping device.

[0047] (3) Since the maximum stroke of the first moving part is different from the maximum stroke of the second moving part, the movement ranges of the front module and the rear module in the first direction can be different, thereby increasing the flexibility of use of the beam shaping device.

[0048] Although the present invention has been disclosed in the above embodiments, the above embodiments are not used to limit the present invention, and anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be limited by the patent scope of the application to be attached later. [Explanation of symbols]

[0049] 100: Beam shaping device 110: Beam shaping assembly 111: Previous module 112: Rear module 130: Main support frame 131: First support bracket 132: First rail 133: First regulation bracket 134: Anchor Base 135: 1st horizontal adjuster 140: First auxiliary support frame 141: Second support bracket 142: Second rail 143: Second regulation bracket 144: First base frame 145:Second horizontal adjuster 146: First drive unit 1461: First connecting member 1462: First threaded rod 1463: First guide rod 147: First Mobile Unit 150: Second auxiliary support frame 151: Third support bracket 152: Third Rail 153: Third Regulation Bracket 154: Second base frame 155: Third horizontal adjuster 156: Second drive unit 1561: Second connecting member 1562: Second threaded rod 1563: Second guide rod 157: Second Mobile Unit 200: Neutron source 300: Ground Base D1: First direction D2:Second direction D3: Third direction H1: First screw hole H2: Second screw hole H3: 3rd screw hole L1: First length L2: Second length S1: First screw S2: Second screw S3: Third screw WS:Work Space

Claims

1. a beam shaping assembly including a front module and a rear module that together with the front module define a working space for accommodating a neutron source; a main support frame configured to support the front module and the rear module, The main support frame includes: a first support bracket; a plurality of first rails provided on the first support bracket, the first rails being configured to allow the front module and the rear module to be movably mounted thereon; a first restriction bracket to which the first support bracket is movably connected; a plurality of anchor bases separated from each other and provided on the ground base; a plurality of first level adjusters each connected between a corresponding one of the anchor bases and the first restraining bracket; a main support frame including: Equipped with A beam shaping device, wherein the neutron source is configured to generate a plurality of neutrons, and the beam shaping assembly is configured to adjust the energy spectrum of the neutrons to generate a neutron beam.

2. 2. The beam shaping device of claim 1, wherein the first rails each extend along a first direction, the first support bracket is configured to move relative to the first regulating bracket along the first direction and a second direction, and the second direction is perpendicular to the first direction.

3. 3. The beam shaping device of claim 2, wherein the first horizontal adjusters are configured to adjust the position of the first regulating bracket relative to a corresponding one of the anchor bases along a third direction, the third direction being perpendicular to the first direction and the second direction.

4. a first auxiliary support frame detachably connected to the main support frame and the front module, for moving the front module relative to the main support frame; a second auxiliary support frame detachably connected to the main support frame and the rear module, for moving the rear module relative to the main support frame; The beam shaping device of claim 1 , further comprising:

5. 5. The beam shaping device of claim 4, wherein the first rails each extend along a first direction, the front module and the rear module are arranged along the first direction, and the first auxiliary support frame and the second auxiliary support frame are detachably connected to opposite sides of the main support frame along the first direction.

6. The first auxiliary support frame is a second support bracket detachably connected to the first support bracket; a plurality of second rails mounted on the second support bracket and aligned with the first rails; a second restriction bracket that supports and fixes the second support bracket; a first base frame detachably connected to at least one of the anchor bases; a plurality of second level adjusters respectively connected between the first base frame and the second regulating bracket and configured to adjust the distance between the first base frame and the second regulating bracket; a first drive unit connected to the second support bracket; a first moving part configured to be detachably connected to the front module; Including, The beam shaping device according to claim 4 , wherein the first drive unit is connected to the first movement unit and configured to drive the movement of the first movement unit.

7. The beam shaping device according to claim 6 , wherein the first driving section and the first moving section are located between the second rails.

8. The first driving unit is A first connecting member; a first threaded rod connected between the second support bracket and the first connecting member, configured to rotate relative to the second support bracket and the first connecting member, and to which the first moving portion is coupled; At least one first guide rod that passes through the first moving part and is connected between the second support bracket and the first connecting member, and is parallel to the first threaded rod and the second rail; The beam shaping device according to claim 6 , comprising:

9. The second auxiliary support frame is a third support bracket detachably connected to the first support bracket; a plurality of third rails mounted on the third support bracket and aligned with the first rails; a third restriction bracket that supports and fixes the third support bracket; a second base frame detachably connected to at least the other of the corresponding anchor bases; a plurality of third level adjusters respectively connected between the second base frame and the third regulating bracket and configured to adjust the distance between the second base frame and the third regulating bracket; a second drive unit connected to the third support bracket; a second moving part configured to be detachably connected to the rear module; Including, The beam shaping device according to claim 8 , wherein the second drive unit is connected to the second movement unit and configured to drive the movement of the second movement unit.

10. The beam shaping device according to claim 9 , wherein the second driving section and the second moving section are located between the third rails.

11. The second drive unit is A second connection member; a second threaded rod connected between the third support bracket and the second connecting member, configured to rotate relative to the third support bracket and the second connecting member, and to which the second moving portion is coupled; At least one second guide rod that passes through the second moving portion and is connected between the third support bracket and the second connecting member, and is parallel to the second threaded rod and the third rail; The beam shaping device of claim 9 , comprising:

12. 12. The beam shaping device of claim 11, wherein the first threaded rod has a first length and the second threaded rod has a second length different from the first length.

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