Neutron irradiation receiver

Abstract

The utility model provides a neutron irradiation receiver, which relates to the technical field of spallation neutron sources, and is characterized in that a first water bath cavity for accommodating temperature control liquid is arranged in a top water bath assembly; a first water bath connector communicated with the first water bath cavity is formed in the top water bath assembly; the top surface of the irradiation receiving block is attached to the bottom wall of the first water bath cavity; the sample containing assembly is provided with a sample containing groove, and the bottom surface of the irradiation receiving block abuts against a groove opening of the sample containing groove in a sealed mode. A plurality of sample introduction micropores are uniformly formed in the edge of the sample accommodating groove; a sample channel is arranged on the sample accommodating component, one end of the sample channel is communicated with the sample injection micropore, and the other end of the sample channel is communicated with the sample injection connector, so that a uniform liquid film with a clear surface interface can be formed, the experimental environment is stable, and the experimental precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spallation neutron sources, and particularly relates to a neutron irradiation receiver. Background Technique

[0002] Neutron reflection technology is an advanced material characterization technology for obtaining information such as the structural composition within the scale range of 0.5 - 500 nm at the interface by measuring the neutron reflection of the interfacial thin film material. On the one hand, due to the unique properties of neutrons, such as strong penetration ability and being electrically neutral, neutron reflection technology has increasingly become an important research method for the film layer structure of thin film materials. On the other hand, since neutrons have a spin magnetic moment, neutrons with a single spin orientation, also known as polarized neutrons, can record the interaction between their magnetic moments and the magnetic moments of magnetic materials after reflection. Therefore, neutron reflection technology is a powerful means for obtaining the magnetic structure information of these magnetic thin film materials and measuring the depth profile distribution of magnetism along the film thickness direction. Neutron reflection is a very sensitive surface analysis tool, which is very suitable for studying the surface and interface properties of materials and plays an irreplaceable important role, and is of great significance for materials science, biopharmaceuticals, physical research, engineering applications, etc.

[0003] The Multi-Purposed Reflectometer (MR) is one of the three spectrometers constructed in the first phase of the China Spallation Neutron Source, mainly used for studying the surface and interface characteristics of materials. The MR uses a time-resolved method to record reflected neutrons on the detector, thereby obtaining the relationship between the neutron reflectivity and the momentum transfer vector. By analyzing the neutron reflectivity curve, the thickness of the thin film, the interface roughness, and the distribution of the scattering length density can be obtained. When the polarized neutron measurement mode is adopted, the distribution of magnetism along the direction perpendicular to the film plane can be obtained, and at the same time, the surface and interface magnetism under in-situ conditions such as temperature, magnetic field, and electric field can also be characterized.

[0004] When conducting interface and thin film experiments, it is necessary to control environmental conditions such as the temperature and pressure of the sample. Moreover, during the preparation process of the sample, the thin film must be uniform and the interface must be clear. The neutron irradiation receivers in the prior art cannot control the temperature of the experimental process, which affects the experimental accuracy. In addition, during the preparation process of the sample, the uniformity of the sample distribution is poor, the thin film on the sample is uneven, and the detection accuracy is poor. Content of the Utility Model

[0005] The object of the present utility model is to provide a neutron irradiation receiver to solve the problems existing in the above-mentioned prior art. The flow rate of the sample can be slowed down through the uniformly arranged sample injection microholes. The liquid level at the top of the sample is in contact with the outer surface of the bottom of the irradiation receiving block, ensuring good uniformity of the sample in the sample accommodating groove, forming a uniform liquid film with a clear surface interface. The irradiation receiving module and the sample accommodating groove jointly enclose a closed sample accommodating cavity. After adding a liquid sample, a vacuum environment is formed to control the volume of the sample receiving neutron irradiation in each experiment to be consistent. The top water bath assembly keeps the environment in the sample accommodating groove warm to ensure that the temperature of the environment where the sample is located is constant during the experiment and improve the experimental accuracy.

[0006] To achieve the above object, the present utility model provides the following solution: Provide a neutron irradiation receiver, including:

[0007] A top water bath assembly, in which a first water bath cavity for accommodating a temperature-controlled liquid is arranged; a first water bath connection port communicating with the first water bath cavity is arranged on the top water bath assembly;

[0008] An irradiation receiving block, the top surface of which is attached to the bottom wall of the first water bath cavity;

[0009] A sample accommodating assembly, in which a sample accommodating groove is provided. The bottom surface of the irradiation receiving block is in sealing contact with the notch of the sample accommodating groove; a plurality of sample injection microholes are uniformly arranged at the edge of the sample accommodating groove; a sample channel is arranged on the sample accommodating assembly, one end of the sample channel communicates with the sample injection microholes, and the other end of the sample channel communicates with a sample injection connection port.

[0010] Preferably, the sample injection microholes are arranged vertically. The liquid outlet at the top of the sample injection microhole communicates with the bottom of the sample accommodating groove, and the liquid inlet at the bottom of the sample injection microhole communicates with the sample channel.

[0011] Preferably, the sample channel includes a bent section and a converging section connected in sequence. The converging section is located below the sample injection microholes and communicates with the liquid inlets of the sample injection microholes.

[0012] Preferably, a sample retaining strip is arranged on the outer periphery of the sample accommodating groove, and a rubber ring is arranged on the outer periphery of the sample retaining strip. The rubber ring is in sealing contact with the irradiation receiving block.

[0013] Preferably, the irradiation receiving block is a silicon block.

[0014] Preferably, the top water bath assembly further includes a first water bath channel communicating with the first water bath chamber; the first water bath channel includes a first water bath extension section and a first water bath confluence section that are sequentially connected. The first water bath extension section is arranged along the length direction of the first water bath chamber. The first water bath extension section communicates with the first water bath connection port. The first water bath confluence section is arranged on a side of the first water bath extension section away from the first water bath connection port.

[0015] Preferably, it further includes a bottom water bath assembly arranged below the sample accommodation assembly. A second water bath chamber for accommodating a temperature-controlled liquid is arranged in the bottom water bath assembly. The top wall of the second water bath chamber is attached to the bottom wall of the sample accommodation groove; a second water bath connection port is arranged on the bottom water bath assembly. The second water bath connection port communicates with the second water bath chamber through a second water bath channel.

[0016] Preferably, the second water bath channel includes a second water bath bottom section and a second water bath top section arranged horizontally. The second water bath bottom section and the second water bath top section are connected through a vertical connection section. Both the second water bath bottom section and the second water bath top section communicate with the second water bath chamber.

[0017] Preferably, a magnet for magnetically adsorbing the sample accommodation assembly is arranged in the bottom water bath assembly. A clamping protrusion is arranged at the top of the bottom water bath assembly. A clamping groove cooperating with the clamping protrusion is arranged at the bottom of the sample accommodation assembly.

[0018] Preferably, it further includes a connecting block. The top of the connecting block is fixedly connected to the top water bath assembly. The bottom of the connecting block is attached to the irradiation receiving block.

[0019] The utility model has achieved the following technical effects compared with the prior art:

[0020] The sample is uniformly injected through the sample channel. The sample injection micropores can slow down the flow rate of the sample, enabling the sample to slowly enter the sample accommodation groove from the uniformly arranged sample injection micropores, avoiding air bubbles in the sample, and ensuring good uniformity of the sample in the sample accommodation groove. The liquid level at the top of the sample contacts the bottom outer surface of the irradiation receiving block. Through the limiting abutment of the irradiation receiving block, the uniformity of the sample is further increased, forming a uniform liquid film with a clear surface interface. Moreover, the irradiation receiving module and the sample accommodation groove jointly enclose a closed sample accommodation cavity. After adding the liquid sample, a vacuum environment is formed, which can control the volume of the sample receiving neutron irradiation in each experiment to be consistent, improving the experimental accuracy. The first water bath cavity in the top water bath assembly can transfer heat to the irradiation receiving block to keep the environment in the sample accommodation groove warm, ensuring that the temperature of the environment where the sample is located remains constant during the experiment. By adjusting the temperature of the temperature control liquid in the first water bath cavity, the temperature of the environment where the sample is located can be adjusted in a timely manner, and the detection accuracy is relatively high. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the overall structure of the neutron irradiation receiver of the present invention;

[0023] Figure 2 Exploded view of the overall structure of the top of the present invention;

[0024] Figure 3 Schematic diagram of the overall structure of the top water bath assembly of the present invention;

[0025] Figure 4 Schematic diagram of the overall internal structure of the top water bath assembly of the present invention;

[0026] Figure 5 Schematic diagram of the internal structure of the top water bath assembly of the present invention;

[0027] Figure 6 Another perspective schematic diagram of the internal structure of the top water bath assembly of the present invention;

[0028] Figure 7 Schematic diagram of the overall structure of the sample accommodation assembly of the present invention;

[0029] Figure 8 Partial enlarged view of the sample accommodation assembly;

[0030] Figure 9 Schematic diagram of the internal structure of the sample accommodation component of the present utility model;

[0031] Figure 10 Schematic diagram of another perspective of the internal structure of the sample accommodation component of the present utility model;

[0032] Figure 11 Schematic diagram of another perspective of the overall structure of the sample accommodation component of the present utility model;

[0033] Figure 12 Schematic diagram of the overall structure of the bottom water bath component of the present utility model;

[0034] Figure 13 Schematic diagram of the internal structure of the bottom water bath component of the present utility model;

[0035] Figure 14 Another perspective of the internal structure of the bottom water bath component of the present utility model;

[0036] Figure 15 Schematic diagram of the top section of the second water bath of the bottom water bath component of the present utility model;

[0037] Figure 16 Schematic diagram of the base of the present utility model.

[0038] Wherein, 1. Top water bath component; 2. Irradiation receiving block; 3. Sample accommodation component; 4. First water bath cavity; 5. First water bath connection port; 6. Sample accommodation groove; 7. Sampling micropore; 8. Sample channel; 9. Bending section; 10. Converging section; 11. Sample retaining bar; 12. Rubber ring clamping groove; 13. Sampling connection port; 14. First water bath extension section; 15. First water bath confluence section; 16. Bottom water bath component; 17. Second water bath cavity; 18. Second water bath connection port; 19. Bottom section of the second water bath; 20. Top section of the second water bath; 21. Vertical connection section; 22. Clamping protrusion; 23. Clamping groove; 24. Connection block; 25. Base; 26. Temperature sensing interface. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0040] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0041] Please refer toFigures 1-16 As shown in Figures 1-16 , in this embodiment, a neutron irradiation receiver is provided, which includes a top water bath assembly 1, an irradiation receiving block 2, and a sample accommodating assembly 3 arranged in sequence from top to bottom. The top water bath assembly 1 is preferably a rectangular structure. A first water bath cavity 4 is provided inside the top water bath assembly 1, and a temperature control liquid can be stored in the first water bath cavity 4. A first water bath connection port 5 is provided on the top water bath assembly 1, and the first water bath connection port 5 communicates with the first water bath cavity 4. The temperature control liquid can be injected into the first water bath cavity 4 through the first water bath connection port 5. The top surface of the irradiation receiving block 2 is attached to the bottom wall of the first water bath cavity 4, and the temperature control liquid in the first water bath cavity 4 can exchange heat with the irradiation receiving block 2 through the bottom wall. The sample accommodating assembly 3 is used to accommodate the sample to be detected. A sample accommodating groove 6 is provided on the sample accommodating assembly 3, and the sample can be accommodated in the sample accommodating groove 6. The opening of the sample accommodating groove 6 faces the irradiation receiving block 2. The bottom surface of the irradiation receiving block 2 is sealingly connected to the opening of the sample accommodating groove 6. The irradiation receiving block 2 and the sample accommodating groove 6 together form a closed sample accommodating cavity. Uniformly arranged sample injection micro-holes 7 are provided at the edge of the sample accommodating groove 6. A sample channel 8 is provided in the sample accommodating assembly 3, and one end of the sample channel 8 communicates with the sample injection micro-holes 7. The other end of the sample channel 8 communicates with a sample injection connection port 13. The sample injection connection port 13 is preferably provided with two, and is symmetrically arranged on the side wall of the sample accommodating assembly 3. The sample can be introduced into the sample channel 8 and the sample accommodating groove 6 through the sample injection connection port 13, and the sample is injected through a connecting conduit. Preferably, a switching valve is provided in the sample injection connection port 13. When the sample does not need to be introduced, the sample injection connection port 13 can be closed through the switching valve.

[0042] Working principle: Keep the sample accommodating groove 6 in a horizontal state. The irradiation receiving module 2 and the sample accommodating groove 6 together form a closed sample accommodating cavity. First, heavy water is injected into the sample accommodating groove 6 through the sample channel 8 to discharge the gas remaining in the sample accommodating assembly 3. Then, the sample is uniformly injected through the sample channel 8. The sample in the sample channel 8 gradually flows to the sample injection micro-holes 7. The sample injection micro-holes 7 can slow down the flow rate of the sample, so that the sample slowly enters the sample accommodating groove 6 from the sample injection micro-holes 7, avoiding bubbles in the sample. At the same time, the sample injection micro-holes 7 are uniformly arranged at the edge of the sample accommodating groove 6, ensuring good uniformity of the sample in the sample accommodating groove 6. The liquid level at the top of the sample contacts the outer surface of the bottom of the irradiation receiving block 2. Through the limiting abutment of the irradiation receiving block 2, the uniformity of the sample in the sample accommodating groove 6 is further increased, forming a uniform liquid film with a clear surface interface. The first water bath cavity 4 in the top water bath assembly 1 can transfer heat to the irradiation receiving block 2. The irradiation receiving block 2 can exchange heat with the sample to keep the sample warm, ensuring that the temperature of the environment where the sample is located is constant during the experiment. By adjusting the temperature of the temperature control liquid in the first water bath cavity 4, the temperature of the environment where the sample is located can be adjusted in time.​

[0043] In one embodiment, as Figures 1-16 shown, the sample injection micropore 7 is vertically arranged, the pore diameter of the sample injection micropore 7 is between 1 and 2 mm, the sample injection micropore 7 is arranged at the edge position of the bottom of the sample accommodating groove 6, the sample injection micropore 7 includes a liquid inlet and a liquid outlet, the liquid inlet is located at the bottom of the sample injection micropore 7, the liquid outlet is located at the top of the sample injection micropore 7, the liquid outlet of the sample injection micropore 7 is communicated with the bottom of the sample accommodating groove 6, and the liquid inlet of the sample injection micropore 7 is communicated with the sample channel 8. Preferably, the liquid outlet at the top of the sample injection micropore 7 is flush with the inner surface of the bottom wall of the sample accommodating groove 6.

[0044] In one embodiment, as Figures 1-16 shown, the cross-section of the sample accommodating groove 6 is a rectangular structure, the sample injection micropores 7 are uniformly arranged along the long side of the sample accommodating groove 6, and the sample injection micropores 7 are arranged in two rows. The sample channel 8 includes a bending section 9 and a converging section 10, the converging section 10 is communicated with the liquid inlet of the sample injection micropore 7, and the length of the sample channel 8 can be increased through the bending section 9. After the sample is injected into the sample accommodating assembly 3, it can decelerate when flowing through the bending section 9, slowing down the injection speed of the sample, and then passes into the converging section 10. The converging section 10 is located below the liquid inlet of the sample injection micropore 7. The sample in the converging section 10 enters the interior of the sample injection micropore 7 upward through the liquid inlet, and the sample is detected again in the converging section 10. The sample slowly and evenly enters the sample accommodating groove 6 through the liquid outlet at the top of the sample injection micropore 7.

[0045] In one embodiment, as Figures 1-16 shown, a sample retaining strip 11 is arranged at the edge of the sample accommodating groove 6, the sample retaining strip 11 is arranged around the outer periphery of the sample accommodating groove 6, and the sample in the sample accommodating groove 6 is blocked by the sample retaining strip 11 to prevent the sample from flowing outwards. A rubber ring slot 12 is arranged around the outer periphery of the sample retaining strip 11 on the sample accommodating groove 6, and a rubber ring is clamped in the rubber ring slot 12. In the natural state, the top surface of the rubber ring is higher than the sample retaining strip 11. When the irradiation receiving block 2 is installed on the top, the rubber ring is aligned with the irradiation receiving block 2, and the rubber ring is directly in sealing contact with the bottom surface of the irradiation receiving block 2. Preferably, the bottom surface of the irradiation receiving block 2 is also in contact with the top surface of the sample retaining strip 11 to ensure good sealing of the sample accommodating groove 6, so that a vacuum environment is formed in the sample accommodating groove 6 after the sample is added.

[0046] In one embodiment, the irradiation receiving block 2 is a silicon block, and the silicon block has a rectangular body structure. The thickness range of the silicon block is 5 - 20 mm, preferably the thickness of the silicon block is 10 mm, and the surface roughness is 0.1 - 0.2 nm. It is used as the substrate for the neutron solid-liquid interface reflection experiment. The surface of the silicon block is polished to make the surface smooth. The surface of the silicon block is directly in contact with the rubber ring. The sample is filled in the sealed cavity formed by the sample accommodating groove 6 and the silicon block. The liquid level at the top of the sample is in contact with the smooth surface of the silicon block, forming a uniform liquid film with a clear surface interface.

[0047] In one embodiment, as Figures 1-16 shown, there are two first water bath connection ports 5, and they are symmetrically arranged on the side wall of the top water bath assembly 1. The top water bath assembly 1 includes a first water bath channel, and the first water bath channel communicates with the first water bath connection port 5 and the first water bath cavity 4. Preferably, the first water bath channel includes a first water bath extension section 14 and a first water bath confluence section 15. The first water bath extension section 14 is arranged along the length direction of the first water bath cavity 4, and the first water bath confluence section 15 is arranged on the side of the first water bath extension section 14 away from the first water bath connection port 5. When the temperature-controlled liquid is introduced from the first water bath connection port, the temperature-controlled liquid is continuously injected into the first water bath cavity 4 through the first water bath extension section 14. Part of the temperature-controlled liquid in the first water bath extension section 14 gradually flows into the first water bath confluence section 15. The top of the inner cavity of the first water bath confluence section 15 is higher than the top of the inner cavity of the first water bath extension section 14, and the bottom of the inner cavity of the first water bath confluence section 15 is lower than the bottom of the inner cavity of the first water bath extension section 14. The first water bath confluence section 15 can play a role in guiding the flow, so that the temperature-controlled liquid fills the first water bath cavity 4. In the width direction, the first water bath confluence section 15 can completely cover the first water bath cavity 4. Both the first water bath extension section 14 and the first water bath confluence section 15 communicate with the first water bath cavity 4.

[0048] In one embodiment, as Figures 1-16 shown, it further includes a bottom water bath assembly 16. The top surface of the bottom water bath assembly 16 is attached to the bottom surface of the sample accommodating assembly 3. A second water bath cavity 17 is provided inside the bottom water bath assembly 16, and temperature-controlled liquid can be stored in the second water bath cavity 17. A second water bath connection port 18 is provided on the bottom water bath assembly 16, and the second water bath connection port 18 communicates with the second water bath cavity 17 through a second water bath channel. Preferably, two second water bath connection ports 18 are provided and are symmetrically distributed on the bottom water bath assembly 16. The temperature-controlled liquid inside the second water bath cavity 17 can perform heat exchange on the sample accommodating groove 6 and play a role in keeping the sample in the sample accommodating groove 6 warm.

[0049] In this embodiment, the second water bath channel has a U-shaped structure, including a horizontally arranged second water bath bottom section 19 and a second water bath top section 20. The second water bath bottom section 19 and the second water bath top section 20 are connected through a vertically arranged connecting section 21. Both the second water bath bottom section 19 and the second water bath top section 20 are connected to the second water bath cavity 17. The second water bath bottom section 19 and the second water bath top section 20 can jointly inject temperature-controlled liquid into the second water bath cavity 17.

[0050] In one embodiment, as Figures 1-16 shown, a magnet is provided in the bottom water bath assembly 16. The bottom water bath assembly 16 is magnetically adsorbed to the sample accommodating assembly 3 through the magnet. A clamping protrusion 22 is provided on the top of the bottom water bath assembly 16, and a clamping groove 23 is provided on the bottom of the sample accommodating assembly 3. The clamping protrusion 22 of the bottom water bath assembly 16 can be inserted into the clamping groove 23, and the clamping protrusion 22 and the clamping groove 23 are in contact with each other to realize the limit of the bottom water bath assembly 16 and the sample accommodating assembly 3.

[0051] In one embodiment, as Figures 1-16 shown, a connecting block 24 is further included. The top surface of the connecting block 24 is in contact with the bottom wall of the top water bath assembly 1, the bottom surface of the connecting block 24 is in contact with the top wall of the irradiation receiving block 2, and the connecting block 24 is fixedly connected to the top water bath assembly 1. The connecting block 24 is preferably a Teflon block, and the friction between the connecting block 24 and the irradiation receiving block 2 can be reduced through the Teflon block. The Teflon block is preferably a rectangular structure. A base 25 is further included. The base 25 is arranged at the bottom of the bottom water bath assembly 16, and the base 25 is fixedly connected to the bottom water bath assembly 16.

[0052] In one embodiment, the top water bath assembly 1 and the connecting block 24 are fixedly connected through internal bolts, and the top water bath assembly 1 and the sample accommodating assembly 3 can be connected through bolts. The top water bath assembly 1, the connecting block 24, the irradiation receiving block 2, and the sample accommodating assembly 3 are connected through bolts passing through, and the bolts are preferably located at diagonal positions. The bottom water bath assembly 16 can also be magnetically adsorbed to the spectrometer sample holder to realize the rapid switching of multiple sample experiments and improve the experimental efficiency. A temperature sensing interface 26 is provided on the top water bath assembly 1. Through the temperature sensing interface 26, the temperature of the temperature-controlled liquid inside the top water bath assembly 1 can be monitored. The temperature sensing interface 26 and the first water bath connection port 5 are arranged on the same side, and the temperature-controlled liquid can be water.

[0053] Working principle: First, rinse the sample placement component 3 and the irradiation receiving block 2 (silicon block) alternately with deionized water and absolute ethanol, and dry them under nitrogen. Place the sample placement groove 6 flat with the surface facing up, and put the rubber ring into the rubber ring slot 12. Inject heavy water through the sample injection connection port 13 to expel the air in the sample channel 8, and then inject the sample evenly while preventing the generation of bubbles. After the sample placement groove 6 is filled with the sample, place the irradiation receiving block 2 so that the irradiation receiving block 2 is aligned with the rubber ring, and the polished surface of the irradiation receiving block 2 contacts the liquid sample. Align the top water bath component 1 and the connection block 24 with the bottom edge of the irradiation receiving block 2 and the sample placement component 3, and place them above the irradiation receiving block 2. Place bolts diagonally to connect the four modules (the top water bath component 1, the connection block 24, the quasi-irradiation receiving block 2, and the sample placement component 3). After the bolts are tightened, magnetically connect them to the bottom water bath component 16. Insert the water bath conduit into the first water bath connection port 5 and the second water bath connection port 18. Place the device in the irradiation area. The whole device is set on a movable stage. The reflection signals of the irradiation receiving block 2, the liquid sample, and the Teflon block to radiation are all different. Adjust the mobile radiation path through laboratory data debugging, and determine that the radiation center is located in the liquid sample film according to the radiation signal reflected by the data receiver.

[0054] In the present invention, a constant temperature water bath is connected through the top water bath component 1 and the bottom water bath component 16, which can control the constancy of the sample environment temperature during the experiment. Different experimental designs at different temperatures can be achieved by changing the water bath temperature; by controlling the on-off valve of the sample injection connection port 13, sample leakage can be prevented, and the sample can be added by simply opening the sample injection valve without disassembling and reorganizing the whole device; through the sealed liquid pool cavity formed by the sample placement component 3 and the irradiation receiving block 2, a vacuum environment is formed after adding the liquid sample, and the volume of the sample receiving neutron irradiation in each experiment is controlled to be consistent, which has strong applicability and improves the experimental accuracy at the same time.

[0055] It should be noted that for those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0056] Specific examples are used in this utility model to expound the principle and implementation mode of this utility model. The description of the above embodiments is only used to help understand the method and its core idea of this utility model; at the same time, for those of ordinary skill in the art, according to the idea of this utility model, there will be changes in the specific implementation mode and application scope. To sum up, the content of this specification should not be construed as a limitation to this utility model.

Claims

1. A neutron irradiation receiver, characterized in that, Including: A top water bath assembly (1), inside which there is a first water bath cavity (4) for containing temperature-controlled liquid; on the top water bath assembly (1), there is a first water bath connection port (5) communicating with the first water bath cavity (4); An irradiation receiving block (2), the top surface of which is in contact with the bottom wall of the first water bath cavity (4); A sample accommodating assembly (3), which is provided with a sample accommodating groove (6), the bottom surface of the irradiation receiving block (2) is in sealing contact with the notch of the sample accommodating groove (6); a plurality of sample injection micro-holes (7) are evenly arranged at the edge of the sample accommodating groove (6); on the sample accommodating assembly (3), there is a sample channel (8), one end of the sample channel (8) communicates with the sample injection micro-hole (7), and the other end of the sample channel (8) communicates with a sample injection connection port (13).

2. The neutron irradiation receiver according to claim 1, characterized in that, The sample injection micro-hole (7) is vertically arranged, the liquid outlet at the top of the sample injection micro-hole (7) communicates with the bottom of the sample accommodating groove (6), and the liquid inlet at the bottom of the sample injection micro-hole (7) communicates with the sample channel (8).

3. The neutron irradiation receiver according to claim 2, wherein The sample channel (8) includes a bent section (9) and a converging section (10) connected in sequence, the converging section (10) is located below the sample injection micro-hole (7) and communicates with the liquid inlet of the sample injection micro-hole (7).

4. The neutron irradiation receiver according to claim 3, wherein, A sample retaining strip (11) is arranged on the outer periphery of the sample accommodating groove (6), and a rubber ring is arranged on the outer periphery of the sample retaining strip (11), and the rubber ring is in sealing contact with the irradiation receiving block (2).

5. The neutron irradiation receiver according to claim 4, characterized in that, The irradiation receiving block (2) is a silicon block.

6. The neutron irradiation receiver according to claim 1, wherein The top water bath assembly (1) further includes a first water bath channel communicating with the first water bath cavity (4); the first water bath channel includes a first water bath extension section (14) and a first water bath confluence section (15) connected in sequence, the first water bath extension section (14) is arranged along the length direction of the first water bath cavity (4), the first water bath extension section (14) communicates with the first water bath connection port (5), and the first water bath confluence section (15) is arranged on the side of the first water bath extension section (14) away from the first water bath connection port (5).

7. The neutron irradiation receiver according to claim 1, wherein It further includes a bottom water bath assembly (16) arranged below the sample accommodating assembly (3), inside the bottom water bath assembly (16) there is a second water bath cavity (17) for containing temperature-controlled liquid, the top wall of the second water bath cavity (17) is in contact with the bottom wall of the sample accommodating groove (6); on the bottom water bath assembly (16), there is a second water bath connection port (18), and the second water bath connection port (18) communicates with the second water bath cavity (17) through a second water bath channel.

8. The neutron irradiation receiver according to claim 7, characterized in that, The second water bath channel includes a second water bath bottom section (19) and a second water bath top section (20) arranged horizontally, the second water bath bottom section (19) and the second water bath top section (20) are connected through a vertical connection section (21), and both the second water bath bottom section (19) and the second water bath top section (20) communicate with the second water bath cavity (17).

9. The neutron irradiation receiver according to claim 8, characterized in that, A magnet for magnetically adsorbing with the sample accommodating component (3) is arranged in the bottom water bath component (16), a clamping protrusion (22) is arranged at the top of the bottom water bath component (16), and a clamping groove (23) cooperating with the clamping protrusion (22) is arranged at the bottom of the sample accommodating component (3).

10. The neutron irradiation receiver according to claim 1, characterized in that, It further includes a connecting block (24), the top of the connecting block (24) is fixedly connected with the top water bath component (1), and the bottom of the connecting block (24) is attached to the irradiation receiving block (2).

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