A personal dose equivalent calibration slab phantom with universal fixture

Abstract

The utility model discloses a personal dose equivalent calibration plate -shaped water body mould with general fixed clamp belongs to plate -shaped water body mould technical field, and it includes water body mould ontology, and water body mould ontology both sides are equipped with guide rail positioning groove subassembly, is equipped with the positioning groove on guide rail positioning groove subassembly, still is provided with the positioning bottom support, and the both ends of positioning bottom support are equipped with the first fixed hole, and two first fixed holes are equipped with the first fixed screw respectively, and positioning bottom support is installed on guide rail positioning groove subassembly through first fixed screw, still is provided with fixed tablet, and fixed tablet sets up in the upper portion of positioning bottom support, and the both ends of fixed tablet are equipped with the second fixed hole, and two second fixed holes are equipped with the second fixed screw respectively, and fixed tablet is connected fixed with guide rail positioning groove subassembly through second fixed screw.

Description

Technical Field

[0001] This utility model belongs to the technical field of plate-shaped water models, specifically relating to a personal dose equivalent calibration plate-shaped water model with a universal fixing clamp. Background Technology

[0002] With the increasingly widespread application of nuclear technology in numerous fields such as physics, chemistry, medicine, engineering, oil exploration, nuclear industry, and industrial production, the resulting radiation safety and protection issues have become increasingly important. According to relevant requirements, personnel who may be exposed to various types of radioactivity (X, γ, neutron, β, and α) in their work must undergo personal dosimetry to ensure operational safety and avoid unnecessary disputes. Personal dosimetry is typically measured using direct-reading personal dosimeters and passive personal dosimeters (track etched dosimeters, stimulated luminescence dosimeters, and bubble dosimeters) (hereinafter collectively referred to as personal dosimeters). Before use, neutron personal dosimeters must be verified, calibrated, and tested to ensure the traceability and accuracy of personal dosimetry monitoring results. To simulate the conditions of actual measurements, personal dosimeter calibration must be performed on an ISO plate phantom (hereinafter referred to as a phantom).

[0003] The existing phantom is a cuboid measuring 30cm (length) × 30cm (width) × 15cm (thickness), with walls made of plexiglass. It lacks a structure for securing the personal dosimeter. During calibration, the neutron personal dosimeter needs to be fixed to the front surface of the phantom, with the effective measurement point as close as possible to this surface. However, the existing phantom's front surface is very smooth. Due to the varying shapes and sizes of neutron personal dosimeters and the lack of a dedicated structure for their fixation, transparent tape or thin string is often used. This results in insecure fixation and low positioning accuracy, compromising calibration consistency. Furthermore, the extensive use of transparent tape leads to waste and environmental pollution. Utility Model Content

[0004] The purpose of this invention is to provide a personal dosimeter calibration plate-shaped water phantom with a universal fixing fixture, which solves the problem that existing water phantoms lack a fixing structure for personal dosimeters, resulting in unreliable fixing and low positioning accuracy of personal dosimeters.

[0005] The technical solution adopted in this utility model is as follows: A personal dose equivalent calibration plate-shaped water phantom with a universal fixing clamp includes a water phantom body. Guide rail positioning groove assemblies are installed on both sides of the water phantom body. Positioning grooves are formed on the guide rail positioning groove assemblies, and are parallel to the height direction of the guide rail positioning groove assemblies. The side of the guide rail positioning groove assemblies with the positioning grooves is flush with the front surface of the water phantom body. A positioning base is also provided, which is perpendicular to the guide rail positioning groove assemblies. First fixing holes are formed at both ends of the positioning base, corresponding to the positioning grooves on both sides. First fixing screws are installed in each of the two first fixing holes. The positioning base is mounted on the guide rail positioning groove assemblies by the first fixing screws. A fixing plate is also provided, parallel to the guide rail positioning groove assemblies and positioned above the positioning base. Second fixing holes are formed at both ends of the fixing plate, corresponding to the positioning grooves on both sides. Second fixing screws are installed in each of the two second fixing holes. The fixing plate is connected and fixed to the guide rail positioning groove assemblies by the second fixing screws.

[0006] Furthermore, the guide rail positioning groove assembly is made of plexiglass.

[0007] Furthermore, the positioning base is made of acrylic glass, aluminum, or iron.

[0008] Furthermore, the material of the fixing plate is plexiglass, aluminum, or iron.

[0009] Furthermore, the first and second fixing screws are made of nylon or plexiglass.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, the guide rail positioning groove assembly, positioning base, and fixing pressure plate are used together to form a universal fixing fixture. The personal dosimeter calibration plate-shaped water phantom with this universal fixing fixture can easily fix personal dosimeters of different shapes and sizes onto the front surface of the water phantom body, ensuring the stability and reliability of the position during the verification, calibration, and testing of the personal dosimeters, thereby ensuring consistent test results. Practical operation shows that using this water phantom simplifies the placement process of personal dosimeters and improves operational efficiency. Furthermore, all components are made of lightweight materials, avoiding additional scattered radiation from the fixing structure. At the same time, the positioning base and fixing pressure plate replace the use of transparent tape, avoiding waste and environmental pollution. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front view of the guide rail positioning groove assembly of this utility model. Figure 3 This is a top view of the guide rail positioning groove assembly of this utility model. Figure 4 This is a schematic diagram of the positioning base of this utility model; Figure 5 This is a schematic diagram of the structure of the fixed pressure plate of this utility model; The markings in the diagram are: 1- Water body model body, 2- Guide rail positioning groove assembly, 3- Positioning groove, 4- Positioning base, 5- First fixing hole, 6- Fixing tablet, 7- Second fixing hole, 8- Personal dosimeter. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0013] 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 claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0014] It should be noted that the labels and letters in the following figures represent similar items, therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are merely for the purpose of simplifying the description of this utility model 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0016] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply 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.

[0017] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Refer to the instruction manual. Figure 1-5 , A personal dose equivalent calibration plate-shaped water phantom with a universal fixing clamp includes a water phantom body. Guide rail positioning groove assemblies are installed on both sides of the water phantom body. Positioning grooves are formed on the guide rail positioning groove assemblies, and are parallel to the height direction of the guide rail positioning groove assemblies. The side of the guide rail positioning groove assemblies with the positioning grooves is flush with the front surface of the water phantom body. A positioning base is also provided, which is perpendicular to the guide rail positioning groove assemblies. First fixing holes are formed at both ends of the positioning base, corresponding to the positioning grooves on both sides. First fixing screws are installed in each of the two first fixing holes. The positioning base is mounted on the guide rail positioning groove assemblies by the first fixing screws. A fixing plate is also provided, parallel to the guide rail positioning groove assemblies and positioned above the positioning base. Second fixing holes are formed at both ends of the fixing plate, corresponding to the positioning grooves on both sides. Second fixing screws are installed in each of the two second fixing holes. The fixing plate is connected and fixed to the guide rail positioning groove assemblies by the second fixing screws.

[0019] In this embodiment, the first fixing screw is passed through the first fixing hole to connect the positioning base to the guide rail positioning groove assembly (the first fixing screw is not fully tightened at this time). Then, the bottom of the personal dosimeter to be calibrated contacts the upper surface of the positioning base, and the positioning base is slid along the positioning groove to adjust its position. When the effective measuring point of the personal dosimeter is at a predetermined height, the first fixing screw is tightened to fix the position of the positioning base, ensuring that the height of the personal dosimeter remains unchanged during the calibration process. Next, the fixing plate is pressed tightly against the rear side of the personal dosimeter, and the second fixing screw is passed through the second fixing hole to connect and fix the fixing plate to the guide rail positioning groove assembly. This presses the personal dosimeter firmly against the front surface of the phantom, making the effective measuring point of the personal dosimeter as close as possible to the front surface of the phantom, and ensuring that the position of the personal dosimeter does not change during the verification, calibration, and testing processes.

[0020] Preferably, the guide rail positioning groove assembly is made of plexiglass.

[0021] Preferably, the positioning base is a cuboid structure made of plexiglass, aluminum, or iron.

[0022] Preferably, the fixing plate has a cuboid structure and is made of plexiglass, aluminum, or iron.

[0023] Preferably, the first and second fixing screws are made of nylon or plexiglass.

[0024] The above description constitutes an embodiment of this utility model. The foregoing descriptions are preferred embodiments of this utility model. Unless there is a clear contradiction between the preferred embodiments or a premise based on a particular preferred embodiment, the preferred embodiments can be arbitrarily combined and used. The embodiments and specific parameters described are merely for clearly illustrating the verification process of the utility model and are not intended to limit the patent protection scope of this utility model. The patent protection scope of this utility model is still determined by its claims. Similarly, any equivalent structural changes made based on the description and drawings of this utility model should also be included within the protection scope of this utility model.

Claims

1. A personal dose equivalent calibration plate-shaped water phantom with a universal fixing clamp, characterized in that, The system includes a water model body (1), on which guide rail positioning groove assemblies (2) are installed on both sides. Positioning grooves (3) are provided on the guide rail positioning groove assemblies (2), and the positioning grooves (3) are parallel to the height direction of the guide rail positioning groove assemblies (2). The side of the guide rail positioning groove assembly (2) with the positioning grooves (3) is flush with the front surface of the water model body (1). A positioning base (4) is also provided, which is perpendicular to the guide rail positioning groove assembly (2). First fixing holes (5) are provided at both ends of the positioning base (4). The positions of the two first fixing holes (5) correspond to the positioning grooves (3) on both sides, respectively. A first fixing screw is installed in a fixing hole (5). The positioning base (4) is installed on the guide rail positioning groove assembly (2) by the first fixing screw. A fixing plate (6) is also provided. The fixing plate (6) is arranged parallel to the guide rail positioning groove assembly (2). The fixing plate (6) is located above the positioning base (4). The fixing plate (6) has a second fixing hole (7) at both ends. The positions of the two second fixing holes (7) are respectively corresponding to the positioning grooves (3) on both sides. A second fixing screw is installed on the two second fixing holes (7). The fixing plate (6) is connected and fixed to the guide rail positioning groove assembly (2) by the second fixing screw.

2. A personal dose equivalent calibration plate-shaped water phantom with a universal fixing clamp according to claim 1, characterized in that, The guide rail positioning groove assembly (2) is made of plexiglass.

3. A personal dose equivalent calibration plate-shaped water phantom with a universal fixing clamp according to claim 1, characterized in that, The positioning base (4) is made of plexiglass, aluminum, or iron.

4. A personal dose equivalent calibration plate-shaped water phantom with a universal fixing clamp according to claim 1, characterized in that, The fixed pressure plate (6) is made of plexiglass, aluminum, or iron.

5. A personal dose equivalent calibration plate-shaped water phantom with a universal fixing clamp according to claim 1, characterized in that, The first and second fixing screws are made of nylon or plexiglass.

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