A Terahertz Material Ion Irradiation System

Abstract

This invention discloses a terahertz material ion irradiation system, including a test chamber and a sample plate. A vacuum pump is installed on the side wall of the test chamber, and a temperature control device is installed on the top of the test chamber. Through the design of the extension groove and protective plate, this invention allows two aluminum foil blocking plates to be moved into the ion energy path during the rotation of the drive disc, thus attenuating the ion energy gradient. After use, the aluminum foil blocking plates retract into the extension groove under the action of a return spring, preventing the scattered ion beam from affecting the aluminum foil blocking plates. Furthermore, the sliding frame allows the sample to be placed on it, and the sample moves during the rotation of the first drive shaft, allowing for the acquisition of integrated data from the sample. This reduces the number of sample tests, facilitates data processing by operators, and improves experimental efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ion irradiation, in particular to a terahertz material ion irradiation system. BACKGROUND

[0002] In recent years, the application of terahertz technology is increasingly widespread, and the application research of its imaging and sensing technology in medical, military and security aspects is continuously deepened. In the process of irradiating terahertz ions with fast neutrons, the low irradiation efficiency will affect the effectiveness of reactor life assessment.

[0003] For example, a heavy ion irradiation system and an irradiation method in Chinese patent No. CN111599504A are used to obtain a transverse irradiation gradient dose distribution of a sample by combining a beam limiting diaphragm and two lifting sample tables. This method can improve the irradiation of samples with different doses, but it needs to use an aluminum foil blocking piece to control the irradiation dose. However, in this method, the aluminum foil is not protected, and a small amount of particle scattering will occur in the ion beam, which will affect the aluminum foil blocking piece to some extent. In addition, the tested data of the sample need to be recorded frequently, and the tested data cannot be integrated to facilitate the recording of the operator. Therefore, we propose a terahertz material ion irradiation system. SUMMARY

[0004] Therefore, the technical problem to be solved by the present application is to provide a terahertz material ion irradiation system that integrates the tested data to facilitate the recording of the operator.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a terahertz material ion irradiation system, comprising a test chamber and a sample plate, a vacuum air extraction device is arranged on the side wall of the test chamber, a temperature control device is arranged on the top of the test chamber, a shooting entrance is arranged on the front side of the test chamber, a beam limiting diaphragm is arranged on the outside of the shooting entrance, a support frame and two staggered support rods are arranged in the test chamber, a first drive shaft and a second drive shaft are respectively arranged on the two support rods, a transmission disc and a driving gear are arranged on the first drive shaft and the second drive shaft, a plurality of extension grooves are arranged on the transmission disc, aluminum foil blocking pieces with different thicknesses are respectively arranged in the extension grooves, and a fixing rod is arranged on the rear side of the transmission disc;

[0006] A pushing mechanism is arranged on the fixing rod, the pushing mechanism comprises a pushing shaft and a pushing disc, the two pushing shafts are respectively connected between the first drive shaft and the second drive shaft on the left and right sides, a jacking mechanism is connected to the second drive shaft, the jacking mechanism comprises a lifting plate and a lifting shaft, a sliding frame is slidably connected to the top of the support frame, the sample plate is arranged in the sliding frame, and the first drive shaft is connected to the sliding frame;

[0007] The above-mentioned terahertz material ion irradiation system, the front end of two transmission discs is provided with a blocking disc, a communication port corresponding to the extension groove is formed in the blocking disc, the center of the transmission disc is on the same horizontal line with the center of the blocking disc, and the plurality of communication ports correspond to the positions of the plurality of extension grooves.

[0008] The above-mentioned terahertz material ion irradiation system, the extension groove is provided with an extension plate, the extension plate is provided with a mounting port, the aluminum foil blocking piece is arranged in the mounting port, the extension plate and the inner side wall of the extension groove are provided with a reset spring, and the extension plate is fixedly connected with a moving block through a moving rod.

[0009] The above-mentioned terahertz material ion irradiation system, the inner side wall of the extension groove is fixedly connected with a protection plate, the protection plate is provided with a moving port corresponding to the moving rod, and the moving rod is located outside the extension groove.

[0010] The above-mentioned terahertz material ion irradiation system, the sliding frame is provided with a mounting groove, the mounting groove and the center of the transmission disc are on the same horizontal height, the mounting groove is provided with a clamping device, the clamping device is used for clamping and fixing the sample plate, the sliding frame is provided with a moving rack, the first driving shaft is provided with a moving gear, and the moving gear and the moving rack are in meshing connection.

[0011] The above-mentioned terahertz material ion irradiation system, the pushing shaft is rotatably connected to the top of the fixed rod, the pushing disc is fixedly connected between the pushing shaft, the moving shaft is fixedly connected to the pushing disc, the sliding frame is slidably connected to the outer side wall of the moving shaft, and the sliding frame is slidably connected between the fixed rod.

[0012] The above-mentioned terahertz material ion irradiation system, the pushing shaft is fixedly connected with a driven gear, the driven gear and the driving gear are in meshing connection, and the number of teeth of the driving gear is greater than that of the driven gear.

[0013] The above-mentioned terahertz material ion irradiation system, the lifting shaft is rotatably connected to the bottom of the test chamber, the second driving shaft is provided with a first bevel gear, the lifting shaft is provided with a second bevel gear, the first bevel gear and the second bevel gear are in meshing connection, the lifting plate is threadedly connected with the lifting shaft, and the same telescopic rod is arranged between the lifting plate and the inner bottom of the test chamber.

[0014] The technical scheme of the present application has the following beneficial technical effects:

[0015] 1. The present invention, through the setting of the extension groove and the protective plate, can move the two aluminum foil blocking plates into the path of ion energy during the rotation of the transmission disk, and perform gradient attenuation of ion energy on them. After the corresponding aluminum foil blocking plate is used, it will retract into the extension groove under the action of the return spring, thereby preventing the scattered ion beam from affecting the aluminum foil blocking plate.

[0016] 2. The present invention, through the setting of a sliding frame, can place the sample on the sliding frame, and drive the corresponding sample to move during the rotation of the first drive shaft, so that the integrated corresponding data can be obtained on the sample, thereby reducing the number of sample tests, making it easier for operators to organize the obtained data, and improving the experimental efficiency. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 A three-dimensional structural schematic diagram of the transmission disc of the present invention;

[0019] Figure 3 A three-dimensional structural schematic diagram of the extension groove of the present invention;

[0020] Figure 4 A three-dimensional structural diagram of the interior of the test chamber of this invention;

[0021] Figure 5 A three-dimensional structural schematic diagram of the sliding frame of the present invention;

[0022] Figure 6 A three-dimensional structural schematic diagram of the lifting shaft of the present invention;

[0023] Figure 7 A three-dimensional structural diagram of the fixing frame of the present invention.

[0024] The reference numerals in the figure are as follows: 1-Test chamber; 2-Vacuum pumping device; 3-Beam limiting aperture; 4-Injection port; 5-Support rod; 6-Sliding frame; 7-Support frame; 8-Transmission disc; 9-Blocking disc; 10-Extension plate; 11-Aluminum foil blocking plate; 12-Moving block; 13-Extension groove; 14-Fixing rod; 15-Pushing disc; 16-Protective plate; 17-Lifting shaft; 18-Lifting plate; 19-First drive shaft; 20-Second drive shaft; 21-Sample plate; 22-Moving gear; 23-Temperature control device; 24-Telescopic rod; 25-Fixing frame; 26-Moving rack. Detailed Implementation

[0025] Please see Figures 1-2A terahertz material ion irradiation system, comprising a test chamber 1 and a sample plate 21, a vacuum pumping device 2 is arranged on the side wall of the test chamber 1, the vacuum pumping device 2 can ensure that the inside of the test chamber 1 is in a vacuum environment during the test process, and the vacuum pumping device and the temperature control device 23 are both prior art, the top of the test chamber 1 is provided with a temperature control device 23, the front side of the test chamber 1 is provided with a shooting entrance 4, the outside of the shooting entrance 4 is provided with a limited beam diaphragm 3, the inside of the test chamber 1 is provided with a support frame 7 and two staggered support rods 5, the first driving shaft 19 and the second driving shaft 20 are arranged on the two support rods 5 respectively, the first driving shaft 19 and the second driving shaft 20 are both driving sources and can rotate independently, which is a prior art scheme, and the second driving shaft 20 can rotate in the forward and reverse directions;

[0026] The first driving shaft 19 and the second driving shaft 20 are both provided with a transmission disc 8 and a driving gear, the front ends of the two transmission discs 8 are both provided with a blocking disc 9, the blocking disc 9 is provided with a communication port corresponding to the extension slot 13, the center of the transmission disc 8 is on the same horizontal line as the center of the blocking disc 9, a plurality of communication ports correspond to the positions of a plurality of extension slots 13 respectively, a plurality of extension slots 13 are both provided with an extension plate 10, the extension plate 10 is provided with a mounting port, an aluminum foil blocking piece 11 is arranged in the mounting port, a return spring is arranged between the extension plate 10 and the inner side wall of the extension slot 13, and the extension plate 10 is fixedly connected with a moving block 12 through a moving rod;

[0027] Referring to Figures 3-4 A plurality of extension slots 13 are arranged on the transmission disc 8, and the plurality of extension slots 13 are respectively provided with aluminum foil blocking pieces 11 with different thicknesses, a fixed rod 14 is arranged on the rear side of the transmission disc 8, a protection plate 16 is fixedly connected to the inner side wall of the extension slot 13, the protection plate 16 is provided with a moving port corresponding to the moving rod, and the moving block 12 is located outside the extension slot 13;

[0028] A pushing mechanism is provided on the fixed rod 14. The pushing mechanism consists of a pushing shaft and a pushing disk 15. The two pushing shafts are respectively connected to the first drive shaft 19 and the second drive shaft 20 on the left and right sides. The pushing shafts are rotatably connected to the top of the fixed rod 14. The pushing disk 15 is fixedly connected to the pushing shaft. A moving shaft is fixedly connected to the pushing disk 15. A fixed frame 25 is slidably connected to the outer wall of the moving shaft. The fixed frame 25 is slidably connected to the fixed rod 14. A driven gear is fixedly connected to the pushing shaft. The driven gear meshes with the driving gear. The number of teeth of the driving gear is greater than the number of teeth of the driven gear. During the rotation of 19 and the second drive shaft 20, the drive gear and the driven gear will cause the push disk 15 to rotate, thereby driving the fixed frame 25 to move. During the movement of the left fixed frame 25, it will move to the inside of the moving rod 12 and push the moving rod 12 to the outside, thereby pushing out the aluminum foil blocking piece 11. As the transmission disk 8 continues to rotate, the fixed frame 25 and the moving rod 12 will separate. Under the action of the return spring, the aluminum foil blocking piece 11 will re-enter the extension groove 13 to protect the aluminum foil blocking piece 11.

[0029] Reference Figures 5-7 A lifting mechanism is connected to the second drive shaft 20. The lifting mechanism consists of a lifting plate 18 and a lifting shaft 17. A sliding frame 6 is slidably connected to the top of the support frame 7. The sample plate 21 is placed in the sliding frame 6. The first drive shaft 19 is connected to the sliding frame 6. The sliding frame 6 is provided with an installation groove. The installation groove is at the same horizontal level as the center of the transmission disc 8. A clamping device is provided in the installation groove. The clamping device is used to clamp and fix the sample plate 21. A moving rack 26 is provided on the sliding frame 6. A moving gear 22 is provided on the first drive shaft 19. The moving gear 22 and the moving rack 26 are meshed. When the second drive shaft 20 is controlled to rotate, the lifting shaft 17 will rotate under the cooperation of the first bevel gear and the second bevel gear. Then, under the action of the thread, the lifting plate 18 can move upward. This can be used to monitor the test data of radiation damage under different irradiation doses.

[0030] The lifting shaft 17 is rotatably connected to the bottom of the test chamber 1. The second drive shaft 20 is provided with a first bevel gear, and the lifting shaft 17 is provided with a second bevel gear. The first bevel gear and the second bevel gear are meshed together. The lifting plate 18 is threadedly connected to the lifting shaft 17. The same telescopic rod 24 is provided between the lifting plate 18 and the bottom of the test chamber 1.

[0031] When used, the ion beam enters the test chamber 1 through the beam-limiting aperture 3 and the injection port 4. The beam-limiting aperture 3 can determine the radiation position of the ion beam. When the ion beam enters the test chamber 1, the first drive shaft 19 and the second drive shaft 20 are both drive sources and can rotate autonomously, which is the existing technical solution. The second drive shaft 20 can rotate in both directions. When the ion beam is irradiated, the second drive shaft 20 will rotate, thereby causing the transmission disk 8 on the right to rotate, causing multiple aluminum foil blocking sheets 11 of different thicknesses to rotate, and enabling various combinations between aluminum foil blocking sheets 11 of different thicknesses. During the rotation of the second drive shaft 20, the lifting shaft 17 will rotate, thereby causing the lifting plate 18 to move slowly upward, so as to achieve longitudinal gradient irradiation dose control.

[0032] After the sample at the same location has completed the irradiation test, the second drive shaft 20 will reverse, thereby resetting the lifting plate 18. By controlling the first drive shaft 19, the sliding frame 6 will move to the right under the action of the moving gear 22, thereby creating a new irradiation test area. At this time, the transmission disk 8 on the left will rotate accordingly. This process is repeated, and the irradiation damage caused by the ion beam to the sample plate 21 will be directly reflected on its surface. Multiple sets of data can be tested at once, improving the testing efficiency.

[0033] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A terahertz material ion irradiation system, comprising a test chamber (1) and a sample plate (21), characterized in that, The test chamber (1) is provided with a vacuum pumping device (2) on its side wall, and a temperature control device (23) is provided on the top of the test chamber (1). The test chamber (1) is provided with an injection port (4) on its front side, and a beam-limiting aperture (3) is provided on the outside of the injection port (4). The test chamber (1) is provided with a support frame (7) and two staggered support rods (5). The two support rods (5) are respectively provided with a first drive shaft (19) and a second drive shaft (20). The first drive shaft (19) and the second drive shaft (20) are both provided with a transmission disc (8) and a drive gear. The transmission disc (8) is provided with multiple extension grooves (13). The multiple extension grooves (13) are respectively provided with aluminum foil blocking sheets (11) of different thicknesses. The transmission disc (8) is provided with a fixing rod (14) on its rear side. The fixed rod (14) is provided with a pushing mechanism, which consists of a pushing shaft and a pushing disc (15). The two pushing shafts are respectively connected to the first driving shaft (19) and the second driving shaft (20) on the left and right sides. The second driving shaft (20) is connected to a lifting mechanism, which consists of a lifting plate (18) and a lifting shaft (17). The top of the support frame (7) is slidably connected to a sliding frame (6). The sample plate (21) is set in the sliding frame (6). The first driving shaft (19) is connected to the sliding frame (6).

2. The terahertz material ion irradiation system according to claim 1, characterized in that, Both of the transmission discs (8) have a blocking disc (9) at their front ends. The blocking disc (9) has a communication port corresponding to the extension groove (13). The center of the transmission disc (8) is on the same horizontal line as the center of the blocking disc (9). The multiple communication ports correspond to the positions of the multiple extension grooves (13).

3. The terahertz material ion irradiation system according to claim 2, characterized in that, Each of the multiple extension slots (13) is provided with an extension plate (10), the extension plate (10) is provided with an installation port, the aluminum foil blocking piece (11) is provided in the installation port, a reset spring is provided between the extension plate (10) and the inner wall of the extension slot (13), and a moving block (12) is fixedly connected to the extension plate (10) by a moving rod.

4. The terahertz material ion irradiation system according to claim 3, characterized in that, A protective plate (16) is fixedly connected to the inner wall of the extension groove (13). The protective plate (16) has a moving opening corresponding to the moving block (12). The moving block (12) is located on the outside of the extension groove (13).

5. The terahertz material ion irradiation system according to claim 1, characterized in that, The sliding frame (6) is provided with an installation groove, which is at the same horizontal height as the center of the transmission disc (8). The installation groove is provided with a clamping device, which is used to clamp and fix the sample plate (21). The sliding frame (6) is provided with a moving rack (26), and the first drive shaft (19) is provided with a moving gear (22). The moving gear (22) and the moving rack (26) are meshed together.

6. The terahertz material ion irradiation system according to claim 1, characterized in that, The push shaft is rotatably connected to the top of the fixed rod (14), the push disk (15) is fixedly connected to the push shaft, a movable shaft is fixedly connected to the push disk (15), a fixed frame (25) is slidably connected to the outer wall of the movable shaft, and the fixed frame (25) is slidably connected to the fixed rod (14).

7. A terahertz material ion irradiation system according to claim 6, characterized in that, A driven gear is fixedly connected to the drive shaft. The driven gear is meshed with the driving gear, and the number of teeth of the driving gear is greater than the number of teeth of the driven gear.

8. A terahertz material ion irradiation system according to claim 1, characterized in that, The lifting shaft (17) is rotatably connected to the bottom of the test chamber (1). The second drive shaft (20) is provided with a first bevel gear, and the lifting shaft (17) is provided with a second bevel gear. The first bevel gear and the second bevel gear are meshed together. The lifting plate (18) is threadedly connected to the lifting shaft (17). The same telescopic rod (24) is provided between the lifting plate (18) and the bottom of the test chamber (1).

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