Neutron source with ion beam guiding function

Abstract

The application relates to a neutron source with an ion beam guiding function, which comprises an ion source, an accelerating electrode, a neutron target group and an insulated flow guide mechanism, the ion source is used for ionizing gas to generate an ion beam; the neutron target group is installed on one side of the ion source, the accelerating electrode is installed between the ion source and the neutron target group, and the flow guide mechanism is installed between the ion source and the neutron target group; the accelerating electrode is used for applying a voltage and forming an electric field one between the accelerating electrode and the ion source, the electric field one accelerates the ion beam, and charged ions in the ion beam deposit on the inner surface of the flow guide mechanism until a stable electric field two is formed, the electric field two focuses and guides the ion beam entering the inside of the flow guide mechanism, and the ion beam bombards the neutron target group to generate neutrons. The application has the advantages of simple structure, reasonable design, realization of ion beam focusing and collimation, improvement of the neutron yield of the neutron generator, adjustment of the positions of the neutron target and the flow guide mechanism, generation of neutron beams with different outgoing directions and multiple functions.

Description

Technical Field

[0001] This invention relates to the field of neutron generator technology, and more specifically to a neutron source with ion beam guiding function. Background Technology

[0002] A neutron source typically consists of an ion source, an accelerating electrode, and a neutron target. The ion source ionizes deuterium or a deuterium-tritium mixture into ions, which are then extracted through an ion source extraction aperture. The accelerating electrode accelerates the ion beam extracted from the ion source and bombards it onto the neutron target to produce neutrons. In a conventional neutron source, the ion source extraction aperture, the accelerating electrode aperture, and the center of the neutron target are aligned on a straight line, with strict coaxiality requirements. During the assembly of the neutron source, the degree of coaxiality of these three components directly affects the neutron yield. Furthermore, due to the anisotropic motion of ions within the ion beam, not all ions extracted from the ion source extraction aperture can enter the accelerating electrode aperture, which is also a significant factor limiting the neutron yield of the neutron source. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a neutron source with ion beam guiding function, which aims to solve the problems in the prior art.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0005] A neutron source with ion beam guiding function includes an ion source, an accelerating electrode, a neutron target assembly, and an insulating guiding mechanism. The ion source is used to ionize gas to generate an ion beam. The neutron target assembly is installed on one side of the ion source, and the accelerating electrode is installed between the ion source and the neutron target assembly. The guiding mechanism is installed between the ion source and the neutron target assembly, with its two ends extending to and communicating with the ion source and the neutron target assembly, respectively, or its two ends being close to the ion source and the neutron target assembly, respectively. The accelerating electrode is used to apply a voltage and form an electric field I in the region between itself and the ion source. This electric field I accelerates the ion beam, and charged ions in the ion beam are deposited on the inner surface of the guiding mechanism until a stable electric field II is formed. This electric field II focuses and guides the ion beam entering the interior of the guiding mechanism, causing the ion beam to bombard the neutron target assembly to generate neutrons.

[0006] The beneficial effects of the present invention are as follows: During operation, firstly, the ion source ionizes the gas to generate an ion beam; then, the accelerating electrode applies a voltage and forms an electric field one between itself and the ion source. This electric field one accelerates the ion beam, and then the charged ions in the ion beam are deposited on the inner surface of the guiding mechanism until a stable electric field two is formed. This electric field two focuses and guides the ion beam entering the guiding mechanism, causing the ion beam to bombard the neutron target group to generate neutrons.

[0007] This invention has a simple structure and reasonable design, which can achieve focusing and collimation of ion beams, improve the neutron yield of neutron generators, and meet the corresponding requirements.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the neutron target group includes multiple neutron targets, which are installed on the side of the accelerating electrode away from the ion source; the current guiding mechanism is adjustable so that one end of it can be directly facing any one of the neutron targets.

[0010] The beneficial effect of adopting the above-mentioned further scheme is that, during operation, firstly, the adjustable characteristics of the flow guiding mechanism are utilized, and one end of the flow guiding mechanism is aligned with any one of the neutron targets in a manner conceived by those skilled in the art; then, the ion source ionizes the gas to generate an ion beam; simultaneously, the accelerating electrode applies a voltage and forms an electric field one between itself and the ion source, which accelerates the ion beam, and then the charged ions in the ion beam are deposited on the inner surface of the flow guiding mechanism until a stable electric field two is formed, which focuses and guides the ion beam entering the interior of the flow guiding mechanism, causing the ion beam to bombard the neutron target to generate neutrons;

[0011] This scheme has a simple structure and reasonable design. It can not only achieve the focusing and collimation of the ion beam and improve the neutron yield of the neutron generator, but also adjust the orientation of the current guiding mechanism so that one end of the current guiding mechanism is directly facing the corresponding neutron target, thereby generating neutron beams with different emission directions, making it versatile in function.

[0012] Furthermore, it also includes a flow guiding drive component, which is connected to one end of the flow guiding mechanism and is used to drive one end of the flow guiding mechanism to move to face any one of the neutron targets.

[0013] The advantages of adopting the above-mentioned further scheme are that the structure is simple and the design is reasonable. By adjusting the orientation of one end of the flow guiding mechanism through the flow guiding drive component, the one end of the flow guiding mechanism is directly facing the corresponding neutron target. The adjustment is convenient and can meet the needs of neutron beams with different emission directions.

[0014] Furthermore, the neutron target assembly includes a neutron target, which is movably and positionably mounted on the side of the accelerating electrode away from the ion source; the current guiding mechanism is adjustable so that one end is directly facing the neutron target.

[0015] The beneficial effect of adopting the above-mentioned further scheme is that, during operation, firstly, the neutron target is moved to a set position in a manner conceived by those skilled in the art, while utilizing the adjustable characteristics of the guiding mechanism and ensuring that one end of the guiding mechanism is aligned with the neutron target in a manner conceived by those skilled in the art; then, the ion source ionizes the gas to generate an ion beam; simultaneously, a voltage is applied to the accelerating electrode and an electric field one is formed between it and the ion source, which accelerates the ion beam, and then the charged ions in the ion beam are deposited on the inner surface of the guiding mechanism until a stable electric field two is formed, which focuses and guides the ion beam entering the interior of the guiding mechanism, causing the ion beam to bombard the neutron target to generate neutrons;

[0016] The scheme has a simple structure and reasonable design. It can not only focus and collimate the ion beam to improve the neutron yield of the neutron generator, but also adjust the orientation of the neutron target and the flow guiding mechanism to generate neutron beams with different emission directions, making it versatile.

[0017] Furthermore, it also includes a neutron target driver, which is connected to the neutron target and is used to drive the neutron target to move.

[0018] The advantages of adopting the above-mentioned further scheme are that the structure is simple and the design is reasonable. The orientation of the neutron target can be adjusted by the neutron target driving component so that one end of the flow guiding mechanism is directly facing the neutron target. The adjustment is convenient and can meet the needs of neutron beams with different emission directions.

[0019] Furthermore, the neutron target driving component is a robotic arm.

[0020] The advantages of adopting the above-mentioned further scheme are that it has a simple structure, reasonable design, and the position of the neutron target can be adjusted by a robotic arm, which is convenient, quick and efficient.

[0021] Furthermore, it also includes a flow guiding drive component, which is connected to one end of the flow guiding mechanism and is used to drive one end of the flow guiding mechanism to move directly in front of the neutron target.

[0022] The advantages of adopting the above-mentioned further scheme are that the structure is simple and the design is reasonable. By adjusting the orientation of one end of the flow guiding mechanism through the flow guiding drive component, the one end of the flow guiding mechanism is directly facing the neutron target. The adjustment is convenient and can meet the needs of neutron beams with different emission directions.

[0023] Furthermore, the flow guiding drive component is a robotic arm.

[0024] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The orientation of one end of the flow guiding mechanism can be adjusted by the second robotic arm, which is convenient, quick and efficient.

[0025] Furthermore, the flow guiding mechanism has a tubular structure.

[0026] The advantages of adopting the above-mentioned further scheme are that the structure is simple and the design is reasonable, resulting in a uniform electric field distribution, which is beneficial to the guidance and focusing of ions.

[0027] Furthermore, the ion source is provided with an extraction hole for extracting the ion beam, and the other end of the flow guiding mechanism is connected to or close to the extraction hole.

[0028] The advantages of adopting the above-mentioned further scheme are that the structure is simple, the design is reasonable, and the ion beam generated by the ion source is extracted through the extraction hole, which is convenient.

[0029] Furthermore, it also includes a housing, in which the ion source, the accelerating electrode, the current guiding mechanism, and the neutron target group are respectively installed.

[0030] The advantages of adopting the above-mentioned further scheme are that it has a simple structure, reasonable design, and integrates the ion source, accelerating electrode, current guiding mechanism and neutron target group into one unit through the shell, which has a high degree of integration and is easy to use. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Ion source; 2. Accelerating electrode; 3. Conduction mechanism; 4. Neutron target; 5. Outer shell. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] Example 1

[0040] like Figure 1 and Figure 2 As shown, this embodiment provides a neutron source with ion beam guiding function, including an ion source 1, an accelerating electrode 2, a neutron target group, and an insulated guiding mechanism 3. The ion source 1 is used to ionize gas to generate an ion beam; the neutron target group is installed on one side of the ion source 1, and the accelerating electrode 2 is installed between the ion source 1 and the neutron target group; the guiding mechanism 3 is installed between the ion source 1 and the neutron target group, with its two ends extending to and connecting to the ion source 1 and the neutron target group, or its two ends being close to the ion source 1 and the neutron target group, respectively; the accelerating electrode 2 is used to apply voltage and form an electric field one in the region between the ion source 1 and the ion source 1. This electric field one accelerates the ion beam, and the charged ions in the ion beam are deposited on the inner surface of the guiding mechanism until a stable electric field two is formed. This electric field two focuses and guides the ion beam entering the interior of the guiding mechanism, so that the ion beam bombards the neutron target group to generate neutrons.

[0041] During operation, firstly, ion source 1 ionizes the gas to generate an ion beam; then, accelerating electrode 2 applies a voltage and forms an electric field 1 in the region between it and ion source 1. This electric field 1 accelerates the ion beam, and charged ions in the ion beam are deposited on the inner surface of the guiding mechanism until a stable electric field 2 is formed. This electric field 2 focuses and guides the ion beam entering the guiding mechanism, causing the ion beam to bombard the neutron target group to generate neutrons.

[0042] Preferably, in this embodiment, the above-mentioned guiding mechanism 3 is a tubular structure with open ends. During the guiding process, the ion beam passes through the inside of the guiding mechanism 3 and is guided to the neutron target group. This structure is simple and reasonably designed, which makes the electric field distribution uniform and is conducive to the guidance and focusing of ions.

[0043] Alternatively, the aforementioned flow guiding mechanism 3 may preferably have other suitable geometric shapes, such as a long rectangular body structure with a circular channel open at both ends inside.

[0044] Preferably, in this embodiment, the flow guiding mechanism 3 is preferably made of polytetrafluoroethylene material.

[0045] Preferably, in this embodiment, the flow guiding mechanism 3 passes through the acceleration electrode 2, and the acceleration electrode 2 is provided with a through hole for the flow guiding mechanism 3 to pass through.

[0046] The aforementioned ion source 1 is connected to an external voltage to form a high potential; the accelerating electrode 2 is connected to a negative voltage relative to the ion source 1 to form a low potential.

[0047] This embodiment has a simple structure and reasonable design, which can achieve ion beam focusing and collimation, improve the neutron yield of the neutron generator, and meet the corresponding requirements.

[0048] Example 2

[0049] Based on Example 1, in this example, the ion source 1 is provided with an extraction hole for extracting the ion beam, and the other end of the flow guiding mechanism 3 is connected to or close to the extraction hole.

[0050] The scheme has a simple structure and reasonable design. The ion beam generated by ion source 1 is extracted through the extraction hole, which is convenient.

[0051] Preferably, in this embodiment, the aforementioned lead-out hole is a circular hole.

[0052] Example 3

[0053] Based on any one of Embodiments 1 to 2, this embodiment also includes a housing 5, and the ion source 1, the accelerating electrode 2, the current guiding mechanism 3 and the neutron target group are respectively installed inside the housing 5.

[0054] The scheme has a simple structure and reasonable design. The ion source 1, accelerating electrode 2, current guiding mechanism 3 and neutron target group are integrated into one unit through the outer shell 5. It has a high degree of integration and is easy to use.

[0055] Preferably, in this embodiment, the outer shell 5 has a cylindrical structure.

[0056] Example 4

[0057] Based on any one of Examples 1 to 3, such as Figure 1 As shown, in this embodiment, the neutron target group includes multiple neutron targets 4, which are installed on the side of the accelerating electrode 2 away from the ion source 1; the current guiding mechanism 3 can be adjusted so that one end of it can be directly facing any one of the neutron targets 4.

[0058] During operation, firstly, the adjustable characteristics of the flow guiding mechanism 3 are utilized, and one end of the flow guiding mechanism 3 is aligned with any one of the neutron targets 4 in a manner conceived by those skilled in the art; then, the ion source 1 ionizes the gas to generate an ion beam; simultaneously, the accelerating electrode 2 applies a voltage and forms an electric field one in the region between it and the ion source 1. This electric field one accelerates the ion beam, and then the charged ions in the ion beam are deposited on the inner surface of the flow guiding mechanism until a stable electric field two is formed. This electric field two focuses and guides the ion beam entering the flow guiding mechanism, causing the ion beam to bombard the neutron target 4 to generate neutrons;

[0059] The scheme has a simple structure and reasonable design. It can not only achieve the focusing and collimation of the ion beam and improve the neutron yield of the neutron generator, but also adjust the orientation of the current guiding mechanism 3 so that one end of the current guiding mechanism 3 is directly facing the corresponding neutron target 4, thereby generating neutron beams with different emission directions. It has multiple functions.

[0060] Example 5

[0061] Based on embodiment 4, this embodiment also includes a flow guiding drive component, which is connected to one end of the flow guiding mechanism 3 and is used to drive one end of the flow guiding mechanism 3 to move to face any one of the neutron targets 4.

[0062] The scheme has a simple structure and reasonable design. By adjusting the orientation of one end of the flow guiding mechanism 3 through the flow guiding drive component, the one end of the flow guiding mechanism 3 is directly facing the corresponding neutron target 4. The adjustment is convenient and can meet the needs of neutron beams with different emission directions.

[0063] When no flow guiding drive is provided, the orientation of one end of the flow guiding mechanism 3 can be adjusted manually. For example, a sealing plate is installed on one side of the outer shell 5, which is openable and closable. Before operation, the sealing plate can be opened manually, and then one end of the flow guiding mechanism 3 can be manually moved to face the corresponding neutron target 4. The flow guiding mechanism 3 can be fixed in a way that can be conceived by those skilled in the art.

[0064] Example 6

[0065] Based on any one of Examples 1 to 3, such as Figure 2 As shown, in this embodiment, the neutron target group includes a neutron target 4, which is movably and positionably installed on the side of the accelerating electrode 2 away from the ion source 1; the current guiding mechanism 3 can be adjusted so that one end of it is directly facing the neutron target 4.

[0066] During operation, firstly, the neutron target 4 is moved to a set position in a manner conceived by those skilled in the art, while utilizing the adjustable characteristics of the flow guiding mechanism 3, and in a manner conceived by those skilled in the art, one end of the flow guiding mechanism 3 is aligned with the neutron target 4; then, the ion source 1 ionizes the gas to generate an ion beam; simultaneously, the accelerating electrode 2 applies a voltage and forms an electric field one in the region between it and the ion source 1, which accelerates the ion beam, and then the charged ions in the ion beam are deposited on the inner surface of the flow guiding mechanism until a stable electric field two is formed, which focuses and guides the ion beam entering the flow guiding mechanism, causing the ion beam to bombard the neutron target 4 to generate neutrons;

[0067] The scheme has a simple structure and reasonable design. It can not only achieve the focusing and collimation of the ion beam and improve the neutron yield of the neutron generator, but also adjust the orientation of the neutron target 4 and the flow guiding mechanism 3 to generate neutron beams with different emission directions, making it versatile in function.

[0068] The above-described embodiments 6 and 4 are parallel solutions.

[0069] Preferably, in this embodiment, the flow guiding mechanism 3 can be made of a flexible material such as polyethylene tetrahydropalmatus (PE).

[0070] The aforementioned neutron target phase 4 is positively biased to the accelerating electrode 2 to limit the electrons generated by the deuterium-deuterium (DD) or deuterium-tritium (DT) reaction.

[0071] Example 7

[0072] Based on Embodiment 6, this embodiment also includes a neutron target driver, which is connected to the neutron target 4 and is used to drive the neutron target 4 to move.

[0073] The scheme has a simple structure and reasonable design. The orientation of the neutron target 4 is adjusted by the neutron target driving component so that one end of the flow guiding mechanism 3 is directly facing the neutron target 4. The adjustment is convenient and can meet the needs of neutron beams with different emission directions.

[0074] When no neutron target drive is installed, the position of the neutron target 4 can be adjusted manually. For example, a sealing plate is installed on one side of the outer shell 5, which is openable and closable. Before operation, the sealing plate can be opened manually, and then the neutron target 4 can be moved to the set position manually. The neutron target 4 can be fixed in the outer shell 5 in a way that can be conceived by those skilled in the art.

[0075] Example 8

[0076] Based on Example 7, in this example, the neutron target driving component is a robotic arm.

[0077] The scheme has a simple structure and reasonable design. The position of the neutron target 4 can be adjusted by a robotic arm, which is convenient, quick and efficient.

[0078] Preferably, in this embodiment, the robotic arm needs to be grounded during installation to form a zero potential, so as to avoid the formation of an electric field between the robotic arm and other components, which would affect the operation of the entire device.

[0079] Example 9

[0080] Based on any one of Embodiment 5 or Embodiments 6 to 7, this embodiment further includes a flow guiding drive component, which is connected to one end of the flow guiding mechanism 3 and is used to drive one end of the flow guiding mechanism 3 to move directly towards the neutron target 4.

[0081] The scheme has a simple structure and reasonable design. By adjusting the orientation of one end of the flow guiding mechanism 3 through the flow guiding drive component, the one end of the flow guiding mechanism 3 is directly facing the corresponding neutron target 4. The adjustment is convenient and can meet the needs of neutron beams with different emission directions.

[0082] When no flow guiding drive is provided, the orientation of one end of the flow guiding mechanism 3 can be adjusted manually. For example, a sealing plate is installed on one side of the outer shell 5, which is openable and closable. Before operation, the sealing plate can be opened manually, and then one end of the flow guiding mechanism 3 can be manually moved to face the corresponding neutron target 4. The flow guiding mechanism 3 can be fixed in a way that can be conceived by those skilled in the art.

[0083] Example 10

[0084] Based on Example 9, in this example, the flow guiding drive component is a robotic arm.

[0085] The solution has a simple structure and reasonable design. The orientation of one end of the flow guiding mechanism 3 can be adjusted by the second robotic arm, which is convenient, quick and efficient.

[0086] Preferably, in this embodiment, the robotic arm 2 needs to be grounded to form a zero potential during installation, so as to avoid the formation of an electric field between the robotic arm 2 and other components, which would affect the operation of the entire device.

[0087] The working principle of this invention is as follows:

[0088] First, adjust one end of the flow guiding mechanism 3 in any of the above methods so that one end of the flow guiding mechanism 3 is facing the corresponding neutron target or neutron target 4.

[0089] Then, ion source 1 ionizes the gas to generate an ion beam; at the same time, the accelerating electrode 2 applies a voltage and forms an electric field one in the region between it and ion source 1. This electric field one accelerates the ion beam, and then the charged ions in the ion beam are deposited on the inner surface of the guiding mechanism until a stable electric field two is formed. This electric field two focuses and guides the ion beam entering the guiding mechanism, so that the ion beam bombards the neutron target 4 to generate neutrons.

[0090] The beneficial effects of this invention are:

[0091] 1) Achieve focusing and collimation of the ion beam. The ions drawn out from the ion source extraction holes move in different directions. After entering the ion guiding mechanism, the ions will first be deposited on the inner surface of the ion guiding mechanism. After a stable electric field is formed on the inner surface, the ions entering the guiding mechanism will form an ion beam along the axial direction of the guiding mechanism under the action of the electric field.

[0092] 2) The guiding mechanism can be designed in different shapes to guide the ion beam to different positions as needed, adapting to neutron targets at different locations.

[0093] It should be noted that all electronic components involved in this invention adopt existing technology, and all the above-mentioned components are electrically connected to the controller, and the control circuit between the controller and each component is existing technology.

[0094] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0095] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A neutron source with ion beam guiding function, characterized in that: The device includes an ion source (1), an accelerating electrode (2), a neutron target assembly, and an insulating flow guiding mechanism (3). The ion source (1) is used to ionize gas to generate an ion beam. The neutron target assembly is installed on one side of the ion source (1), and the accelerating electrode (2) is installed between the ion source (1) and the neutron target assembly. The flow guiding mechanism (3) is installed between the ion source (1) and the neutron target assembly, with its two ends extending to and connecting the ion source (1) and the neutron target assembly, or its two ends being close to the ion source (1) and the neutron target assembly, respectively. The accelerating electrode (2) is used to apply a voltage and form an electric field I in the region between itself and the ion source (1). This electric field I accelerates the ion beam, and charged ions in the ion beam are deposited on the inner surface of the flow guiding mechanism until a stable electric field II is formed. This electric field II focuses and guides the ion beam entering the interior of the flow guiding mechanism, causing the ion beam to bombard the neutron target assembly to generate neutrons. The neutron target group includes multiple neutron targets (4), which are installed on the side of the accelerating electrode (2) away from the ion source (1); the current guiding mechanism (3) can be adjusted so that one end is directly facing any one of the neutron targets (4); It also includes a flow guiding drive, which is connected to one end of the flow guiding mechanism (3) and is used to drive one end of the flow guiding mechanism (3) to move to face any one of the neutron targets (4).

2. The neutron source with ion beam guiding function according to claim 1, characterized in that: The flow guiding mechanism (3) has a tubular structure.

3. The neutron source with ion beam guiding function according to claim 1, characterized in that: The ion source (1) is provided with an extraction hole for extracting the ion beam, and the flow guiding mechanism (3) is connected to or close to the extraction hole.

4. The neutron source with ion beam guiding function according to claim 1, characterized in that: It also includes a housing (5), in which the ion source (1), the accelerating electrode (2), the flow guiding mechanism (3) and the neutron target group are respectively installed.

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