Scintillation crystal luminescence detection equipment
Through the combination of multiple detection cylinders and rotating motors, combined with electro-hydraulic device and limit ring, the problem of difficulty in ensuring the repeatability and consistency of traditional testing devices in the retesting process is solved, and efficient and convenient scintillation crystal detection is achieved. Improve detection accuracy and applicability.
Patent Information
- Application Number
- CN202422718367.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The repetition and consistency of the traditional scintillation crystal test device is difficult to guarantee in the retesting process, and the test efficiency is low, so it is impossible to detect multiple scintillation crystals at the same time.
A scintillation crystal luminescence detection device is designed, and it uses multiple detection cylinders and rotating motors to rotate. Combined with an electro-hydraulic device and a limiting ring, the scintillation crystal is stably fixed and sealed through a fixed ring and a sealing ring to reduce the influence of the external environment.
It improves detection efficiency and accuracy, realizes convenient fixation and applicability of scintillation crystals of different sizes, and enhances the stability and detection accuracy of the device.
Smart Images
Figure CN222280471U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of testing devices, in particular to a scintillation crystal luminescence detection device. Background Art
[0002] Scintillating crystals are composed of a certain amount of scintillating material in a proper form. They are sensitive to ionizing radiation. When impacted by high-energy particles such as X-rays and gamma rays, scintillating crystals can convert the kinetic energy of particles into light energy and emit flashes of light. Usually, scintillating crystals are used in conjunction with photomultiplier tubes or photosensitive semiconductor devices. The principle is that when energy rays shine on the scintillating crystals, the scintillating crystals emit weak flickering light, which is captured and received by the photosensitive cathode surface of the photomultiplier tube and converted into electrical signals, which are then output after multiplication. Then we can determine and evaluate the characteristics of scintillating crystals by testing and analyzing the output electrical signals.
[0003] In traditional testing, the scintillation crystal and the end window panel of the photomultiplier tube are connected by silicone oil or light guide plate, and then fixed by tape before testing. This fixing method is very disadvantageous for the retesting of crystals, and repeatability and consistency are difficult to guarantee. In addition, the existing test device requires the previous scintillation crystal to be tested before the next scintillation crystal can be tested, which is inefficient.
[0004] Therefore, it is necessary to provide a scintillation crystal luminescence detection device to solve the above technical problems. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a scintillation crystal luminescence detection device.
[0006] The utility model provides a scintillation crystal luminescence detection device, comprising: a fixed seat, a photomultiplier tube is installed on the top of the fixed seat, a plurality of detection barrels are arranged above the photomultiplier tube, the outer surface of the detection barrel is connected to the side of a rotating plate through a connecting rod, the bottom of the rotating plate is connected to the driving end of a rotating motor, the rotating motor is installed on the top of a lifting mechanism that can move up and down, the bottom of the lifting mechanism is installed inside a placement groove, the placement groove is arranged on the top of the fixed seat, a fixing ring is installed inside the detection barrel, the side of the fixing ring is connected to the inner surface of the detection barrel through a plurality of fixing rods, the shape of the fixing ring is truncated cone, the size of the bottom of the fixing ring is larger than the size of the top of the fixing ring, an upper clamping ring is installed on the upper end of the interior of the detection barrel, the inner wall of the upper clamping ring is threadedly connected to the fixing barrel, the top of the fixed seat is connected to an electric slide rail, the electric slide rail is connected to a mounting plate through a slider, and a radiation source is installed at the bottom of the mounting plate.
[0007] Preferably, there are multiple fixing tubes, and different fixing tubes have the same outer diameter and different inner diameter.
[0008] Preferably, the lifting mechanism includes a lifting plate, the rotating motor is installed on the top of the lifting plate, the bottom of the lifting plate is connected to the telescopic end of the electric hydraulic device, the fixed end of the electric hydraulic device is connected to the bottom end of the installation box, and the installation box is placed inside the placement groove.
[0009] Preferably, a limiting ring is provided at the bottom of the rotating plate, and the limiting ring is rotatably connected to a limiting groove, and the limiting groove is provided at the top of the rotating plate.
[0010] Preferably, an upper protective ring is provided on the outer side of the radiation source, and the upper protective ring is slidably connected to a protective groove, and the protective groove is arranged on the top of the detection tube.
[0011] Preferably, a sealing ring is installed at the bottom end of the detection cylinder, the sealing ring is made of rubber material, and the sealing ring is located below the fixing ring.
[0012] Preferably, a first rotation hole and a second rotation hole are respectively provided at two ends of the top of the fixing tube.
[0013] Compared with the related art, the scintillation crystal luminescence detection device provided by the utility model has the following beneficial effects:
[0014] 1. The utility model provides a plurality of detection barrels, and drives the detection barrels to rotate by rotating the motor. When one of the detection barrels is detecting the scintillation crystal, the scintillation crystal can be installed inside other detection barrels to prepare for the next detection work and improve the detection efficiency. By providing a fixing ring with a larger upper part and a smaller lower part, the lower end of the scintillation crystal can be directly placed on the inner side of the fixing ring. When the size of the scintillation crystal is larger than the inner diameter size at a certain height inside the fixing ring, the inner wall of the fixing ring can be used to engage the scintillation crystal to fix the lower end of the scintillation crystal. By selecting a fixing barrel of a suitable size according to the size of the scintillation crystal to be detected, the upper end of the scintillation crystal can be fixed without using adhesive tape to fix it, thereby improving the convenience of operation. Different fixing barrels have different sizes, so scintillation crystals of different sizes can be clamped, thereby improving the applicability of the device.
[0015] 2. The utility model is provided with an electric hydraulic device, which can drive the lifting plate to lift and lower through the extension and retraction of the electric hydraulic device, thereby realizing the lifting and lowering of the detection tube, so that when the detection tube is rotated, the rotation of the detection tube will not be affected by the obstruction of the photomultiplier tube, and by providing a limit ring, the limit groove can be used to limit the guide to improve the stability of the rotating plate during rotation;
[0016] 3. The utility model provides an upper protective ring. On the one hand, the protective groove facilitates the connection between the mounting plate and the top of the detection tube. On the other hand, the upper protective ring cooperates with the detection tube to protect and seal the side of the radiation source, thereby reducing the impact of the external environment on it, thereby better impacting the scintillation crystal and improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A schematic structural diagram of a preferred embodiment of a scintillation crystal luminescence detection device provided by the utility model;
[0018] Figure 2 for Figure 1 A schematic diagram of the structure of a scintillation crystal luminescence detection device from a lower viewing angle is shown;
[0019] Figure 3 for Figure 1 The structural schematic diagram of the lifting plate shown;
[0020] Figure 4 for Figure 1 The structural schematic diagram of the electric hydraulic device shown;
[0021] Numbers in the figure: 1. Fixed seat; 2. Detection cylinder; 3. Upper clamping ring; 4. Fixed cylinder; 5. First rotating hole; 6. Second rotating hole; 7. Protective groove; 8. Electric slide rail; 9. Slider; 10. Mounting plate; 11. Upper protective ring; 12. Connecting rod; 13. Rotating plate; 14. Limiting ring; 15. Lifting mechanism; 16. Fixed rod; 17. Fixed ring; 18. Sealing ring; 19. Photomultiplier tube; 20. Radiation source; 21. Lifting plate; 22. Limiting groove; 23. Rotating motor; 24. Mounting box; 25. Electric hydraulic device; 26. Placement groove. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0025] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, if the terms "first", "second", "third", etc. appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0026] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0027] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0028] The following is a detailed description of a new type of specific implementation of a scintillation crystal luminescence detection device in conjunction with a specific embodiment.
[0029] refer to Figures 1 to 4The utility model provides a scintillation crystal luminescence detection device, comprising: a fixed seat 1, a photomultiplier tube 19 is installed on the top of the fixed seat 1, a plurality of detection barrels 2 are arranged above the photomultiplier tube 19, the outer surface of the detection barrel 2 is connected to the side of the rotating plate 13 through a connecting rod 12, the bottom of the rotating plate 13 is connected to the driving end of the rotating motor 23, the rotating motor 23 is installed on the top of the lifting mechanism 15 that can move up and down, the bottom of the lifting mechanism 15 is installed in the inside of the placement groove 26, and the placement groove 26 is arranged on the fixed seat 1 The top of the detection tube 2 is provided with a fixing ring 17, the side of the fixing ring 17 is connected to the inner surface of the detection tube 2 through a plurality of fixing rods 16, the fixing ring 17 is in the shape of a truncated cone, the size of the bottom of the fixing ring 17 is larger than the size of the top of the fixing ring 17, an upper clamping ring 3 is provided at the upper end of the inner part of the detection tube 2, the inner wall of the upper clamping ring 3 is threadedly connected to the fixing tube 4, the top of the fixing seat 1 is connected with an electric slide rail 8, the electric slide rail 8 is connected to the mounting plate 10 through a slider 9, and a radiation source 20 is provided at the bottom of the mounting plate 10.
[0030] In the embodiments of the present invention, reference is made to Figure 1 As shown, there are multiple fixing tubes 4 , and different fixing tubes 4 have the same outer diameters but different inner diameters.
[0031] It should be noted that: by setting up multiple detection tubes 2 and rotating the motor 23, the detection tube 2 can be driven to rotate. When one of the detection tubes 2 is detecting the scintillation crystal, the scintillation crystal can be installed inside the other detection tubes 2 to prepare for the next detection work and improve the detection efficiency. By setting a fixing ring 17 that is larger at the top and smaller at the bottom, the lower end of the scintillation crystal can be directly placed on the inner side of the fixing ring 17. When the size of the scintillation crystal is larger than the inner diameter at a certain height inside the fixing ring 17, the scintillation crystal can be clamped by the inner wall of the fixing ring 17 to fix the lower end of the scintillation crystal. By selecting a fixing tube 4 of a suitable size according to the size of the scintillation crystal to be detected, the upper end of the scintillation crystal can be fixed without the use of tape to fix it, thereby improving the convenience of operation. In addition, different fixing tubes 4 have different sizes, which can clamp scintillation crystals of different sizes and improve the applicability of the device.
[0032] In the embodiments of the present invention, reference is made to Figure 3 , Figure 4 As shown, the lifting mechanism 15 includes a lifting plate 21, the rotating motor 23 is installed on the top of the lifting plate 21, the bottom of the lifting plate 21 is connected to the telescopic end of the electric hydraulic device 25, the fixed end of the electric hydraulic device 25 is connected to the bottom end of the inside of the installation box 24, and the installation box 24 is placed inside the placement groove 26.
[0033] In the embodiments of the present invention, reference is made to Figure 1 As shown, a limiting ring 14 is provided at the bottom of the rotating plate 13 , and the limiting ring 14 is rotatably connected to a limiting groove 22 , and the limiting groove 22 is provided at the top of the rotating plate 13 .
[0034] It should be noted that: by setting up the electric hydraulic device 25, the lifting plate 21 can be driven to be lifted and lowered through the extension and retraction of the electric hydraulic device 25, thereby realizing the lifting and lowering of the detection tube 2, so that when the detection tube 2 is rotated, the rotation of the detection tube 2 will not be affected by the obstruction of the photomultiplier tube 19, and by setting up the limit ring 14, the stability of the rotating plate 13 during rotation can be improved through the limit guide of the limit groove 22.
[0035] In the embodiments of the present invention, reference is made to Figure 1 , Figure 2 As shown, an upper protective ring 11 is disposed on the outer side of the radiation source 20 , and the upper protective ring 11 is slidably connected to a protective groove 7 , and the protective groove 7 is disposed on the top of the detection tube 2 .
[0036] It should be noted that: by providing the upper protection ring 11, on the one hand, the protection groove 7 facilitates the connection between the mounting plate 10 and the top of the detection tube 2; on the other hand, the upper protection ring 11 cooperates with the detection tube 2 to protect and seal the side of the radiation source 20, thereby reducing the impact of the external environment on it, thereby better impacting the scintillation crystal and improving the detection accuracy;
[0037] In the embodiments of the present invention, reference is made to Figure 2 As shown, a sealing ring 18 is installed at the bottom end of the detection tube 2 . The sealing ring 18 is made of rubber and is located below the fixing ring 17 .
[0038] It should be noted that: by providing the sealing ring 18, the bottom of the detection tube 2 can be sealed when the detection tube 2 contacts the photomultiplier tube 19, thereby preventing external light from entering therein and affecting the induction of the photomultiplier tube 19;
[0039] In the embodiments of the present invention, reference is made to Figure 1 As shown, a first rotation hole 5 and a second rotation hole 6 are respectively provided at two ends of the top of the fixing tube 4 .
[0040] It should be noted that: by setting the first rotating hole 5 and the second rotating hole 6, when in use, the "Π" rotating device can be inserted into the first rotating hole 5 and the second rotating hole 6, so as to facilitate the rotation of the fixed cylinder 4 and improve the convenience of replacing the fixed cylinder 4.
[0041] The working principle of a scintillation crystal luminescence detection device provided by the utility model is as follows:
[0042] By setting a plurality of detection tubes 2 and rotating the motor 23, the detection tubes 2 can be driven to rotate. When one of the detection tubes 2 is detecting a scintillation crystal, the scintillation crystal can be installed inside other detection tubes 2 to prepare for the next detection work and improve the detection efficiency. By setting a fixing ring 17 that is larger at the top and smaller at the bottom, the lower end of the scintillation crystal can be directly placed on the inner side of the fixing ring 17. When the size of the scintillation crystal is larger than the inner diameter at a certain height inside the fixing ring 17, the inner wall of the fixing ring 17 can be used to engage the scintillation crystal to fix the lower end of the scintillation crystal. By selecting a fixing tube 4 of a suitable size according to the size of the scintillation crystal to be detected, the upper end of the scintillation crystal can be fixed without the need for fixing with tape, thereby improving the convenience of operation.
[0043] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.
[0044] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A scintillation crystal luminescence detection device, characterized in that: include: A fixed seat (1), a photomultiplier tube (19) is installed on the top of the fixed seat (1), a plurality of detection barrels (2) are arranged above the photomultiplier tube (19), the outer surface of the detection barrel (2) is connected to the side of a rotating plate (13) through a connecting rod (12), the bottom of the rotating plate (13) is connected to the driving end of a rotating motor (23), the rotating motor (23) is installed on the top of a lifting mechanism (15) that can move up and down, the bottom of the lifting mechanism (15) is installed inside a placement groove (26), the placement groove (26) is arranged on the top of the fixed seat (1), and the inside of the detection barrel (2) is arranged A fixing ring (17) is installed, the side of the fixing ring (17) is connected to the inner surface of the detection tube (2) through a plurality of fixing rods (16), the fixing ring (17) is in the shape of a truncated cone, the size of the bottom of the fixing ring (17) is larger than the size of the top of the fixing ring (17), an upper clamping ring (3) is installed at the upper end of the interior of the detection tube (2), the inner wall of the upper clamping ring (3) is threadedly connected to the fixing tube (4), the top of the fixing seat (1) is connected to an electric slide rail (8), the electric slide rail (8) is connected to a mounting plate (10) through a slider (9), and a radiation source (20) is installed at the bottom of the mounting plate (10).
2. A scintillation crystal luminescence detection device according to claim 1, characterized in that: The number of the fixed cylinders (4) is plural, and different fixed cylinders (4) have the same outer diameter size and different inner diameter sizes.
3. A scintillation crystal luminescence detection device according to claim 1, characterized in that: The lifting mechanism (15) comprises a lifting plate (21), the rotating motor (23) is mounted on the top of the lifting plate (21), the bottom of the lifting plate (21) is connected to the telescopic end of the electric hydraulic device (25), the fixed end of the electric hydraulic device (25) is connected to the bottom end of the inside of the installation box (24), and the installation box (24) is placed inside the placement groove (26).
4. A scintillation crystal luminescence detection device according to claim 3, characterized in that: A limiting ring (14) is provided at the bottom of the rotating plate (13), and the limiting ring (14) is rotatably connected to a limiting groove (22), and the limiting groove (22) is provided at the top of the rotating plate (13).
5. A scintillation crystal luminescence detection device according to claim 1, characterized in that: An upper protective ring (11) is provided on the outer side of the radiation source (20), and the upper protective ring (11) is slidably connected to a protective groove (7), and the protective groove (7) is arranged on the top of the detection tube (2).
6. A scintillation crystal luminescence detection device according to claim 1, characterized in that: A sealing ring (18) is installed at the bottom end of the detection cylinder (2). The sealing ring (18) is made of rubber. The sealing ring (18) is located below the fixing ring (17).
7. A scintillation crystal luminescence detection device according to claim 2, characterized in that: A first rotation hole (5) and a second rotation hole (6) are respectively provided at two ends of the top of the fixing cylinder (4).